/// <summary>
/// Validates input firstName. If unsuccessful, shows the corresponding errorLabel
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void firstNameTextBox_Validating(object sender, CancelEventArgs e)
{
if (firstNameTextBox.Text.Length < 1)
{
firstNameErrorLabel.Text = "Required";
firstNameErrorLabel.Visible = true;
firstNameTextBox.BackColor = SystemColors.Control;
return;
}
if (handler.IsValidFirstName(firstNameTextBox.Text))
{
firstNameErrorLabel.Visible = false;
firstNameTextBox.BackColor = SystemColors.Window;
}
else
{
firstNameErrorLabel.Visible = true;
firstNameErrorLabel.Text = "Invalid First name, only letters and '-' please";
firstNameTextBox.BackColor = SystemColors.Control;
}
}