private void TextBox_HoTen_TextChanged(object sender, EventArgs e)
{
int cursorPos = TextBox_HoTen.SelectionStart;
TextBox_HoTen_Validating(new object(), new CancelEventArgs());
TextBox_HoTen.Select(cursorPos, 0);
}
private void ClearTextBoxes()
{
TextBox_HoTen.Clear();
TextBox_DiaChi.Clear();
TextBox_Email.Clear();
}
