private void requiredName_Validating(object sender, CancelEventArgs e)
{
string textInput = requiredName.Text.TrimStart().TrimEnd();
if (string.IsNullOrEmpty(textInput))
{
MessageBox.Show("No name has been entered", "Salary Slip Application", MessageBoxButtons.OK, MessageBoxIcon.Error);
requiredName.Focus();
}
else if (!(RegularExpressionValidator.IsValidName(textInput)))
{
MessageBox.Show("The entered name is not in proper format", "Salary Slip Application", MessageBoxButtons.OK, MessageBoxIcon.Error);
requiredName.Focus();
}
}