ASP.NET AT A GLANCE

ALTER FUNCTION [dbo].[GetMemberRegNo] (  @AccountID INT ) RETURNS VARCHAR(20) AS BEGIN     DECLARE @CodeLengthInTable AS INT       DECLARE @LastCodeInTable AS VARCHAR(20)     DECLARE @LastCodeValue AS INT     DECLARE @LatestCode AS VARCHAR(20)     DECLARE @VARCODE AS VARCHAR(2)     SET @VARCODE='DS'     DECLARE @TOTALPatient AS BIGINT     SELECT @TOTALPatient=COUNT(PatientID) FROM dbo.Patient WITH(NOLOCK) WHERE Patient_AccountID=@AccountID           BEGIN             SET @LastCodeValue= (ISNULL(@TOTALPatient,0) +1 )             IF LEN(@LastCodeValue)=1                 SET @LatestCode=@VARCODE + '0000' + CONVERT(VARCHAR,@LastCodeValue)             ELSE IF LEN(@LastCodeValue)=2             ...

function checkDouble(evt, strValue) {     var iKeyCode = (evt.which) ? evt.which : event.keyCode;     //if( iKeyCode <= 46 || iKeyCode > 58 || iKeyCode==47)     if (iKeyCode <= 46 || iKeyCode > 57 || iKeyCode == 47) {         // handle "." case         if (iKeyCode == 46) {             var is_dot = strValue.indexOf('.');             if (is_dot == -1) {                 return true;             }             else {                 iKeyCode = 0;                 return false;             }         }         else if (iKeyCode != 8 && iKeyCode != 13 && iKeyCode != 9) { ...

1. Simple prevent copy paste or cut on a textbox ------------------------------------------------ <asp:TextBox ID="txtPrevent" runat="server"         oncopy="return false"         onpaste="return false"         oncut="return false"> </asp:TextBox> ------------------------------------------ 2. Prevent right click on the textbox ---------------------------------------- javascript: function preventRightClick(event) { if (event.button==2) { alert("Right Clicking disabled!"); } } <asp:TextBox ID="txtRightClickOff" runat="server" onMouseDown="preventRightClick(event)"> </asp:TextBox> -------------------------- 3. Prevent ctrl key --------------------------- javascript: function PreventCtrlKey(e) { var code = (document.all) ? event.keyCode:e.which; if (parseInt(code)==17) { alert('Ctrl key disabled'); window.event.returnValue = false; } }...

Routed Events Overview When you are first getting started with WPF, you will likely use routed events without even knowing you are using them. For example, if you add a button to your window in the Visual Studio ®  designer and name it myButton and then double-click on it, the Click event will get hooked up in your XAML markup and an event handler for the Click event will be added to the codebehind of your Window class. This should feel no different than hooking up events in Windows Forms and ASP.NET. It is actually a little closer to the coding model for ASP.NET but more like the runtime model of Windows Forms. Specifically, in your XAML markup for the button, you end up with code like this: <Button Name="myButton" Click="myButton_Click">Click Me</Button> So far this looks like any other .NET event hookup—you have an explicitly declared delegate hooked up to an event on an object, and the delegate points to a handling method. The only thing ...