>>>Is there a way to change the code in all textbox gotfocus & lostfocus to this.backcolor= etc without going into each one and adding the code?
>>
>>In design mode? If so yes. Get references with aselobj() and use readmethod(),writemethod().
>>Cetin
>Yes this way would be great! Can you give me an example?

The better way would be to use subclassed textbox. This way you'll have to make changes to the parent class only.