text box value change...

hi all ..
can any one help me suggesting a way to clear the text box value when controll is at the text box.?

here i got a textBox, initially i got some text in it, while i do some edition in that text, the text box is suppose to be cleared. what should i do for clearing the textBox?

which event is happening while we do some edition in the text box?

re: text box value change...

What language is this in? For what platform?

If it is .Net the GotFocus event is good for catching the user clicking on the box, then you could do