You can use TextChanged property (for WinForms - destop appliaction):
private void textBox1_TextChanged(object sender, EventArgs e)
{
int number;
if (Int32.TryParse(textBox1.Text, out number)
&& number > 18
&& number < 99)
{
//Do something or nothing, for example write message in window
caption...
this.Text = "Ok " + number;
}
else
{
//Display somewhere error, for example write message in window
caption...
Text = "Error";
}
}
Grzegorz G. (www.wild-strawberry.eu)
On Mar 12, 10:41 am, amravti_ur <[email protected]> wrote:
> hi, please help me, i m trying to use validation on textbox control of
> c#. i want to restrict user to enter values only between 18-99
