pasting capability in textboxes seems variable, any ideas?

I've not seen this before but is this behaviour only happening in this application on in a number of applications. Example if you create a new windows application - and drop a textbox on the form - is it reproducible.

The functionality of the textbox should be uniform across application unless you happen to be doing something specifically to override the default behaviour. This textbox isnt trying to do something like a numeric only textbox and your checking to see if the keypress is numeric but have forgotten to verify that you allow control characters as well.

I am having the same problem. The textboxes are on a tabpage and i have a menustrip in the form. But I am using a C# Windows Forms application built with Visual Studio C# 2005.

If I delete the clipboard menu items in the Edit menu (like Copy, Cut and Paste) then the associated shortcut keys suddenly start working again. This article was helpful: http://forums.microsoft.com/MSDN/ShowPost.aspx PostID=175001&SiteID=1 .