How can I set focus to TextBox in RunTime?

[fifo]

Hi,

I made a form with a TextBox within some Char and a Button , when you click Button, TextBox will be focused and all the text in this will be selected.

I tried to use Event Select of TextBox class, but it does not work.

   txtBox1.select();  --> Its OK

    txtBox1.select(1,30);  ---> It does not work  :(

Give me some advices. Thanks