private void showManageSupplier()
{
//Create Only One Instance of Form
frmManageSupplier f = frmManageSupplier.CreateInstance();
f.MdiParent = this;
f.dataGrid.Width = Width - (imgAd.Width + 35);
showManaged(f);
showToolbars(new bool[] { true, true, true, true, true });
}
//this will create a single instance of form
public static frmManageSupplier CreateInstance()
{
frmManageSupplier f;
if (thisform == null)
{
thisform = new frmManageSupplier();
}
//dynamic casting
f = (frmManageSupplier)thisform;
return(f);
}