TemplateControl.OnError Method
Raises the Error event.
Assembly: System.Web (in System.Web.dll)
The following code example demonstrates a possible way to use of the OnError method. It creates a string with some arguments that are not valid, which leads to an exception. Because the TemplateControl class is an abstract class, this code example was written using the Page class, which is derived from the TemplateControl class.
<%@ Page language="c#" %> <html> <head> <script language="C#" runat="server"> void Page_Load(object sender, System.EventArgs e) { Page.Error += new System.EventHandler(Error_Handler); try { string myString = "Hello"; // An exception is raised because the length of 'myString' is less than '6'. string mySubString = myString.Substring(0,6); } catch(Exception) { OnError(EventArgs.Empty); } } void Error_Handler(object sender,System.EventArgs e) { Response.Write("<br><b>An Error was raised</b>"); } </script> </head> </html>
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.