protected internal static CheckOutListForm Instance()
{
if (_instance == null)
{
_instance = new CheckOutListForm();
}
return(_instance);
}
private void btnCheckOutList_Click(object sender, EventArgs e)
{
if (!panel3.Controls.Contains(CheckOutListForm.Instance()))
{
panel3.Controls.Add(CheckOutListForm._instance);
CheckOutListForm._instance.Dock = DockStyle.Fill;
CheckOutListForm._instance.BringToFront();
CheckOutListForm._instance.Visible = true;
}
CheckOutListForm._instance.BringToFront();
CheckOutListForm._instance.Visible = true;
}