private void btnMdiAddCustomer_Click(object sender, EventArgs e)
{
if (Application.OpenForms["Add_New_Customer"] == null)
{
Add_New_Customer adcus = new Add_New_Customer();
adcus.MdiParent = this;
adcus.Size = new System.Drawing.Size(525, 620);
adcus.Location = new System.Drawing.Point(150, 5);
adcus.Show();
}
}
private void ribCustomer_Click(object sender, EventArgs e)
{
Add_New_Customer addCustomer = new Add_New_Customer();
addCustomer.MdiParent = this;
addCustomer.Show();
}