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

You can use the int.TryParse method to check if the string is an integer:

int n = 0;
bool isNumber = int.TryParse(textBox1.Text, out n);

if (!isNumber)
   return;