C# '中的服务器错误\'；申请书；索引超出范围。必须为非负且小于集合参数名称的大小：index

“索引超出范围。必须为非负且小于集合参数名称的大小：Index。这是一个屏幕截图： 当我选择要打印的文档时，应用程序将随机打印其他文档。请使用您的帮助大师：( 这是我的代码：

 protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
    {
        trackingDataContext dc = new trackingDataContext(MyClass.conn);
        if (e.CommandName == "Print")
        {
            int row = Int32.Parse(e.CommandArgument.ToString()) + (GridView1.PageIndex * GridView1.PageSize);
            GridViewRow gr = GridView1.Rows[row];
            string ID = gr.Cells[0].Text;
            string jenis_dokumen = gr.Cells[2].Text;
            string nopek = gr.Cells[4].Text;
            string rdl = "";
            var td = (from t in dc.tracking_dokumens where t.id == Convert.ToInt16(ID) select t).SingleOrDefault();
            var area = (from a in dc.field_lists where a.id == td.field_id select a).SingleOrDefault();
            if (area.field_name == "Kantor Pusat Jakarta")
            {
                if (jenis_dokumen == "SPD")
                {
                    rdl = "deklarasi.rdl";
                }
                else if (jenis_dokumen == "Panjar Dinas")
                {
                    rdl = "panjar_dinas.rdl";
                }
                else if (jenis_dokumen == "Pengajuan Panjar Kerja")
                {
                    rdl = "panjar_kerja.rdl";
                }
                else if (jenis_dokumen == "SP3")
                {
                    rdl = "sp3.rdl";
                }
                else if (jenis_dokumen == "Pertanggungjawaban Panjar Kerja")
                {
                    rdl = "pertanggungjawaban.rdl";
                }
            }
            else
            {
                if (jenis_dokumen == "SPD")
                {
                    rdl = "deklarasi_area.rdl";
                }
                else if (jenis_dokumen == "Panjar Dinas")
                {
                    rdl = "panjar_dinas_area.rdl";
                }
                else if (jenis_dokumen == "Pengajuan Panjar Kerja")
                {
                    rdl = "panjar_kerja_area.rdl";
                }
                else if (jenis_dokumen == "SP3")
                {
                    rdl = "sp3_area.rdl";
                }
                else if (jenis_dokumen == "Pertanggungjawaban Panjar Kerja")
                {
                    rdl = "pertanggungjawaban_area.rdl";
                }
            }
            Response.Redirect(MyClass.Site + "/_layouts/ReportServer/RSViewerPage.aspx?rv:RelativeReportUrl=/sites/tracking/Report/"+rdl+"&Source="+MyClass.Site+"/Report/Forms/AllItems.aspx&DefaultItemOpen=1&rp:nopek="+nopek+"&rp:id="+ID);
        }
    }

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检查发生异常的索引和数组大小。显然，您正在尝试获取索引中的项为负或超过（数组中的项数-1）.

放一个断点，看看哪一行会抛出错误，PS：通常这种错误是由以下原因引起的：u试图从没有索引的数组中获取索引。这不是答案，请将其放在注释中。