private void Tax_Invoice_Generation_Load(object sender, EventArgs e)
        {
            dbc.BindClientName(ddl_Client_Search);
            dbc.BindClientName(ddl_ClientName);
            dbc.BindOrderType(ddl_ordertype);
            dbc.BindState(ddl_State);
            dbc.BIND_TAX_TASK(ddl_ordertask);
            txt_Production_Date.Enabled  = true;
            Grid_Invoice_Details.Enabled = true;
            //dbc.Bind_Employee_Order_source(ddl_Order_Source);

            txt_Fromdate.Value        = DateTime.Now;
            txt_Todate.Value          = DateTime.Now;
            txt_Production_Date.Value = DateTime.Now;
            label1.Visible            = true;
            label1.Text = "Enter Order No#";
            txt_Search_orderno.Visible = true;

            if (operation == "VIEW")
            {
                label25.Text = "Edit Invoice Cost";
                tabControl1.TabPages.RemoveAt(1);
                tabPage1.Text              = "Edit/Update View";
                btn_Save.Text              = "Edit Invoice";
                txt_Search_orderno.Text    = inv_num.ToString();
                txt_Search_orderno.Visible = true;
                label1.Visible             = true;
                label1.Text = "Invoice Number :";
                txt_Search_orderno.ReadOnly  = true;
                txt_Production_Date.Enabled  = false;
                Grid_Invoice_Details.Enabled = false;
                Control_Enable_false();
                Bind_Individual_Invoice_Info();
            }
        }