Allow only integers in TextBoxes

Question

I\'m having a problem with checking textboxes and making sure there\'s only integers in them.

So far I\'m able to confirm that there\'s text in the textboxes, but checki

Answer 1

Using your current pattern, something like this:

int tester;
if (!Int32.TryParse(textBox1.Text, out tester))
{
    errorProvider1.SetError(textBox1, "must be integer");
    return;
}