Hi:

i want to set validation in text boxes in VB.NET. For example, i have a text box that can take a maximum of 3 digits. before you insert a record by clicking on a button, it validates all text boxes. how do i do that?

code that i wrote:

If (Not IsNumeric(txtSubAreaNo.Text)) Then
            lblComment.Text = "Please enter a numeric SubArea Number"

this text box should only allow 3 digits maximum to be entered.

Thanks in advance

for each ctl in me.controls
    if ctl.gettype="TextBox" ctl.MaxLenth=3
next

 you try to use regular expressions, i think this is the beter way.
steps.
 1. frist drag the regular expression validatior,
 2. go to properties window and set the controle to validate to your text box
 3. write regular expression at validation expression in properties window

  for maximum of three digits the expression is: ^\d{1,3}$
any number that is 1 to 3 digits in length.eg:matches 1, 15, or 987.

You can use a range validator. They are designed for that.

Go to the following page for more information about the validator control creation

http://msdn.microsoft.com/library/de...asp?frame=true




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