>my form has a control text box with data value 0,
>when user want to key in value 1 and click other control box (without press enter)
>the text box gives me value 10
>how to get the correct input value even user does not press enter ?

Do you have InputMask set for the textbox? I usually remove the InputMask in the GotFocus of the textbox and restore in the LostFocus.

yes i do have ,but if do what you said, still there is another problem...
if the text box value is already 100, i click on the text box and key in 2 then click the other text box, that text box shows 210....