/*******************ERROR PROVIDER FOR USERNAME*******************/
// Ser error provider if username present in DB
private void usernameTextbox_Validating(object sender, CancelEventArgs e)
{
if (usernameTextbox.Text == "Username")
{
return;
}
// pass username to DB for validing existance
if (mysql.isUsernameAvailable(usernameTextbox.Text))
{
e.Cancel = true;
UserNameerrorProvider.SetError(usernameTextbox, "Username already exist in Data Base");
errorMessageLabel.Text = "Username already exist in Data Base";
errorMessageLabel.Show();
}
}
// Cancel Error Provider if no error found
private void usernameTextbox_Validated(object sender, EventArgs e)
{
UserNameerrorProvider.SetError(usernameTextbox, null);
errorMessageLabel.Text = "";
errorMessageLabel.Show();
}
