first form registered user enters his login id and password, (i completed this one)

on my 2nd form i have 2 text box and 1 button

register user only can Enter Type on textbox1, and The amount should insert database

i need to receive error message if un reistered user Enter.on text box1
can any 1 give me the sample code.
Thanks

use a lable instead of a textbox or just set the ReadOnly property of the textbox to true that will stop the user from being able to type in the 2nd textbox

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