private void btnTacGia_Click(object sender, EventArgs e)
{
frmTacGia f = new frmTacGia();
f.ShowDialog();
}
/*********************************************
*********************************************
* Tab 3: Tác Giả
*********************************************
*********************************************/
private void btnTacGia_Them_Click(object sender, EventArgs e)
{
frmTacGia frmtacGia = new frmTacGia();
frmtacGia.ShowDialog(this);
}