How to work Background Worker

 BackgroundLoading.cs
----------------------------------------------------------
public class BackgroundLoading
    {
        public delegate void RunFunction();

        public BackgroundWorker Bw;
        public RunFunction thisFunction;
        FrmLoding newLoading;

        public BackgroundLoading(RunFunction newFunction)
        {
            try
            {
                System.Threading.ThreadStart ts = new System.Threading.ThreadStart(ExpansiveMethod);
                System.Threading.Thread t = new System.Threading.Thread(ts);
                t.Start();

                thisFunction = newFunction;
                Bw = new BackgroundWorker();
                Bw.DoWork += new DoWorkEventHandler(Bw_DoWork);
                Bw.RunWorkerCompleted += new RunWorkerCompletedEventHandler(Bw_RunWorkerCompleted);
            }
            catch (Exception ex)
            {
                throw;
            }
        }

        public void Start()
        {
            try
            {
              
                Bw.RunWorkerAsync();               
                newLoading = new FrmLoding();
                newLoading.ShowDialog();
              
            }
            catch (Exception ex)
            {
                throw;
            }
        }
        protected void ExpansiveMethod()
        {
            //Very expansive call will go here...
            //after the job is finished call method to update ui
            MethodInvoker updaterMI = new MethodInvoker(UpdateChange);
            this.UpdateChange();
        }
        protected void UpdateChange()
        {
            //again back to main ui thread
        }
        void Bw_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            try
            {
                newLoading.Close();
                ExpansiveMethod();

            }
            catch (Exception ex)
            {
                throw;
            }
        }


        void Bw_DoWork(object sender, DoWorkEventArgs e)
        {
            try
            {
                if (thisFunction != null)
                {
                    thisFunction();
                }
            }
            catch (Exception ex)
            {
                throw;
            }
        }
    }

--------------------------------------WPF Control............................LoadingAnimation.xmal
<UserControl x:Class="VISION.LoadingAnimation"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="clr-namespace:VISION"
    Height="Auto" Width="Auto">
    <UserControl.Resources>
        <Storyboard x:Key="ProgressAnimation" RepeatBehavior="Forever">
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#00000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block17" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="Black"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block16" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#EF000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block15" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#E2000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block14" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#D3000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block13" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#C6000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block12" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#B7000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block11" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#AA000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block10" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#23000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#9B000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block9" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#91000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block8" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#7F000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block7" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#72000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block6" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#63000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block5" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#56000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block4" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#3D000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block3" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#26000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block2" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#0C000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#91000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#19000000"/>
            </ColorAnimationUsingKeyFrames>
            <ColorAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="block1" Storyboard.TargetProperty="(UIElement.OpacityMask).(SolidColorBrush.Color)">
                <SplineColorKeyFrame KeyTime="00:00:00" Value="#00000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.2290000" Value="Black"/>
                <SplineColorKeyFrame KeyTime="00:00:00.4590000" Value="#EF000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.6880000" Value="#E2000000"/>
                <SplineColorKeyFrame KeyTime="00:00:00.9180000" Value="#D3000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.1470000" Value="#C6000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.3760000" Value="#B7000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.6060000" Value="#AA000000"/>
                <SplineColorKeyFrame KeyTime="00:00:01.8350000" Value="#9B000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.0650000" Value="#8E000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.2940000" Value="#7F000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.5240000" Value="#72000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.7530000" Value="#63000000"/>
                <SplineColorKeyFrame KeyTime="00:00:02.9820000" Value="#56000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.2120000" Value="#3D000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.4410000" Value="#26000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.6710000" Value="#19000000"/>
                <SplineColorKeyFrame KeyTime="00:00:03.9000000" Value="#0C000000"/>
            </ColorAnimationUsingKeyFrames>
        </Storyboard>
    </UserControl.Resources>
    <UserControl.Triggers>
        <EventTrigger RoutedEvent="FrameworkElement.Loaded">
            <BeginStoryboard x:Name="ProgressAnimation_BeginStoryboard" Storyboard="{StaticResource ProgressAnimation}"/>
        </EventTrigger>
    </UserControl.Triggers>

    <Canvas x:Name="LayoutRoot" VerticalAlignment="Top" Height="70" Width="70">
        <TextBlock Text="Loading..." TextWrapping="Wrap" Canvas.Left="20.069" Canvas.Top="36.214"/>
        <Grid Width="10.734" Height="10.004" Canvas.Left="38.614" Canvas.Top="0.331">
            <local:Block x:Name="block" RenderTransformOrigin="0.5,4.3689" OpacityMask="#00000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="180"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block1" RenderTransformOrigin="0.5,4.3689" OpacityMask="#0C000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="-160"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block2" RenderTransformOrigin="0.5,4.3689" OpacityMask="#19000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="-140"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block3" RenderTransformOrigin="0.5,4.3689" OpacityMask="#26000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="-119.99999999999999"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block4" RenderTransformOrigin="0.5,4.3689" OpacityMask="#3D000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="-100"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block5" RenderTransformOrigin="0.5,4.3689" OpacityMask="#56000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="-80"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block6" RenderTransformOrigin="0.5,4.3689" OpacityMask="#64000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="-59.999999999999993"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block7" RenderTransformOrigin="0.5,4.3689" OpacityMask="#72000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="-40"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block8" RenderTransformOrigin="0.5,4.3689" OpacityMask="#80000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="-19.999999999999996"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block9" OpacityMask="#8E000000" RenderTransformOrigin="0.5,4.3689" VerticalAlignment="Top" Height="10.004"/>
            <local:Block x:Name="block10" RenderTransformOrigin="0.5,4.3689" OpacityMask="#9C000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="19.999999999999996"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block11" RenderTransformOrigin="0.5,4.3689" OpacityMask="#AA000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="40"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block12" RenderTransformOrigin="0.5,4.3689" OpacityMask="#B8000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="59.999999999999993"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block13" RenderTransformOrigin="0.5,4.3689" OpacityMask="#C6000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="80"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block14" RenderTransformOrigin="0.5,4.3689" OpacityMask="#D4000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="100"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block15" RenderTransformOrigin="0.5,4.3689" OpacityMask="#E2000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="119.99999999999999"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block16" RenderTransformOrigin="0.5,4.3689" OpacityMask="#F0000000" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform/>
                        <SkewTransform/>
                        <RotateTransform Angle="140"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
            <local:Block x:Name="block17" RenderTransformOrigin="0.5,4.3689" OpacityMask="Black" VerticalAlignment="Top" Height="10.004">
                <local:Block.RenderTransform>
                    <TransformGroup>
                        <ScaleTransform ScaleX="0.99999999999999989" ScaleY="0.99999999999999989"/>
                        <SkewTransform/>
                        <RotateTransform Angle="160"/>
                        <TranslateTransform/>
                    </TransformGroup>
                </local:Block.RenderTransform>
            </local:Block>
        </Grid>
    </Canvas>
</UserControl>

--------------------------Block
<UserControl x:Class="VISION.Block"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Height="Auto" Width="Auto">
    <Grid x:Name="LayoutRoot">
        <Path Fill="#FF5482A1" Stretch="Fill" RenderTransformOrigin="0.5,4.3689" Data="M291.15499,85.897525 C291.15499,85.897525 301.88917,85.87921 301.88917,85.87921 301.88917,85.87921 300.38339,94.355061 300.38339,94.355061 300.38339,94.355061 292.85366,94.355042 292.85366,94.355042 292.85366,94.355042 291.15499,85.897525 291.15499,85.897525 z"/>
    </Grid>
</UserControl>
--------------------------------
>iske alava or gana nhi ha kaya

------------------call function----------
 BackgroundLoading BL = new BackgroundLoading(Test);
 BL.Start();


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