public void bind_GridView()
    {
        ReturnClass.ReturnDataTable dt = new ReturnClass.ReturnDataTable();
              
        bl.District_id = ddl_district.SelectedValue;
        bl.Base_dept_id = ddl_department.SelectedValue;
        bl.Office_id = ddl_office.SelectedValue;
        bl.IssueYear =  txtYear.Text;
        dt = dl.Get_DeptUserManual_File(bl);
        int row = dt.table.Rows.Count;
        int page;
        if (row % 15 == 0)
        {
            page = row / 15;
        }
        else
        {
            page = row / 15;
            page = page + 1;
        }

        if (Session["language"].ToString() == "en-GB")
        {
            lbl_count.Text = "Total File = " + row.ToString() + "  and  Total page = " + page.ToString() + "";
        }
        else
        {
            lbl_count.Text = "कुल फ़ाइल् = " + row.ToString() + "  और  कुल पेज = " + page.ToString() + "";
        }
        // lbl_count.Text = "Total Records = " + row.ToString() + "  and  Total page = " + page.ToString() + "";

        GridView1.DataSource = dt.table;
        GridView1.DataBind();

    }