I put this in GotFocus of my textbox class:

*!* select all text
NODEFAULT
TextBox::GotFocus
THIS.SelStart = 0
THIS.SelLength = iif(type('this.value') = 'N', LEN(This.Text), LEN(ALLTRIM(THIS.Text)))

>I have a grid and one of the coloumns has a value and it can be edited, and when I want to edit it with first click the value, the old value still remain and I have to replace them. My user want the old value to be disappeared so they don't have to replace it when typing the changes.
>
>This thing doesn't happend if I use arrow button, I've tried looking at the Format and Inputmask propery, but they don't give me any changes.