Visual Studio has an article How to: Create Event Handlers in ASP.NET Web Pages,
But you can’t select the page object in Design view to specify events in Properties.
In code-behind pages that use C#, because the control name will not appear in the drop-down list.
It seems that C# event handler for page can be created only manually!?
According to VS2008 help, the new version has no improvement in this area.
Why C# editor doesn’t have control drop-down list on the left top corner, as VB editor has?