hello,
than you for reply,

i whant to know i'm not very well with vb.

i creat a form ,put 2 textbox,

i put your code

i get error message ,

(compile error expected list separtor or).

i stoped this statment('TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs)Handles TextBox1.TextChanged.

i have another error message,

(sub or function not found).

any idea ,help full example if you can.

regards