/// <summary>
/// หน้าต่างสินค้า
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void สนคาToolStripMenuItem_Click(object sender, EventArgs e)
{
ManageProductForm mpf = new ManageProductForm();
mpf.MdiParent = this;
mpf.Show();
}
private void เพมแกไขฐานสนคาToolStripMenuItem_Click(object sender, EventArgs e)
{
//Thread t = new Thread(LoadingThread);
//t.Start();
//FormCollection fc = Application.OpenForms;
//foreach (Form frm in fc)
//{
// //iterate through
// if (frm.Name == "ManageProductForm")
// {
// MessageBox.Show("คุณเปิดหน้าต่างนี้อยู่");
// return;
// }
//}
ManageProductForm mpf = new ManageProductForm();
mpf.MdiParent = this;
mpf.Show();
}