Backspace is not working in c#???

[rajkumar K]

Hi,I am developing windows application using c#.
i have placed the textbox in 6thpanel of my application.when im pressing backspace in keyboard it will delete only one char.
when im holding backspace also it was delete only one char.
I was written following code in keyup event

if (e.KeyData == Keys.Back)
{
SendKeys.Send("+{BS}");

SendKeys.Send("{BREAK}");
e.handled=true;
}
iwas tried in keydown event and keypressevent also.it was not working.

it was working normal backspace function when im pressing shift+backspace.


could ypu pls give me the solution asap.Thanks in advacne