private void clearData()
    {
        btn_del.Enabled = false;
        Panel1.Visible  = false;


        // cleargrid

        dgrid_Proc.DataSource = null;
        dgrid_Proc.DataBind();


        GridView_other.DataSource = null;
        GridView_other.DataBind();

        GridView_opn.DataSource = null;
        GridView_opn.DataBind();


        GridView_Iado.DataSource = null;
        GridView_Iado.DataBind();

        GridView_trck_chn.DataSource = null;
        GridView_trck_chn.DataBind();
    }
    void fillGrid_tch()
    {
        string did   = ddl_dist.SelectedValue;
        string depid = ddl_IC.SelectedValue;
        string gid   = ddlgodown.SelectedValue;

        string qrychk = "select * from   SCSC_Truck_challan  where  Dist_ID='" + did + "' and Depot_Id='" + depid + "'  and Dispatch_Godown='" + gid + "' ";

        mobj = new MoveChallan(ComObj);
        DataSet dschk = mobj.selectAny(qrychk);

        if (dschk == null)
        {
        }
        else
        {
            if (dschk.Tables[0].Rows.Count > 0)
            {
                GridView_trck_chn.DataSource = dschk.Tables[0];
                GridView_trck_chn.DataBind();
            }
            else
            {
                GridView_trck_chn.DataSource = null;
                GridView_trck_chn.DataBind();
            }
        }
    }