private void ButtonLogin_Click(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(TextBoxEmail.Text) || string.IsNullOrEmpty(TextBoxPassword.Text))
{
if (string.IsNullOrEmpty(TextBoxEmail.Text))
{
ErrorProviderNotifier.SetError(TextBoxEmail, "Please fill the email field");
}
else
{
ErrorProviderNotifier.SetError(TextBoxEmail, "");
}
if (string.IsNullOrEmpty(TextBoxPassword.Text))
{
ErrorProviderNotifier.SetError(TextBoxPassword, "Please fill the password field");
}
else
{
ErrorProviderNotifier.SetError(TextBoxPassword, "");
}
}
else
{
MessageBox.Show("Access Granted", "Welcome");
ErrorProviderNotifier.Clear();
}
}
private void TextBoxEmail_Validating(object sender, CancelEventArgs e)
{
if (!_cancelled)
{
string emailRegex = @"^([a-zA-Z])([a-zA-Z0-9_\.]+(\w))\@[a-zA-Z0-9_\.]+[a-zA-Z]+$";
string text = TextBoxEmail.Text.Trim();
if (!Regex.IsMatch(text, emailRegex))
{
e.Cancel = true;
ErrorProviderNotifier.SetError(TextBoxEmail, "Please provide valid email");
}
else
{
ErrorProviderNotifier.SetError(TextBoxEmail, "");
}
}
else
{
_cancelled = false;
}
}