How can I check which RequiredFieldValidator fail?

Question

Code :

Page.Validate();
if (!Page.IsValid)
{
    Page.RegisterStartupScript("ko", "<script>alert('Failed');</script>");
    return;
}

on this controls, some validator fails! How can I check which one? Thank you!

Answer 1

You can get a collection of validators and check which is not valid

foreach (var item in Validators)
{
     if (!((IValidator)item).IsValid)
     {
          //do something
      }
 }