Question

我正在尝试使用包iTextSharp将gridview导出为pdf。

我在我的.aspx文件中这样做：

<form id="formOptions" runat="server">

            [...]

            <asp:GridView ID="gvReportingStockComp" runat="server" AutoGenerateColumns="false" Visible="true">

                <Columns>

                    <asp:BoundField DataField="cod_wo" HeaderText="N° OF" />
                    <asp:BoundField DataField="composant" HeaderText="Composant" />
                    <asp:BoundField DataField="BESOIN" HeaderText="Besoin/OF" />
                    <asp:BoundField DataField="BESOIN_T" HeaderText="Besoin total" />
                    <asp:BoundField DataField="stock_dispo" HeaderText="Stock dispo" />
                    <asp:BoundField DataField="QTE_RESTANTE" HeaderText="Qte restante" />

                </Columns>

            </asp:GridView>


        </form>

在我的代码背后，我填写了gridview：

OracleConnection oConnexion = new OracleConnection();
oConnexion.ConnectionString = "X";
oConnexion.Open();

string reqStockCompTotal = "intitulé de ma requete"

OracleCommand cmdReqStockComp = new OracleCommand(reqStockCompTotal);
cmdReqStockComp.Connection = oConnexion;
OracleDataReader readerReqStockComp = cmdReqStockComp.ExecuteReader();

gvReportingStockComp.DataSource = readerReqStockComp;
gvReportingStockComp.DataBind();

oConnexion.Close();
oConnexion.Dispose();

如果我为了进行导出而添加下一个代码，它就可以工作了：

Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=TestMES.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);

StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);

gvReportingStockComp.RenderControl(hw);

StringReader sr = new StringReader(sw.ToString());

Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 10f, 0f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.End();

第一只手阻止：

gvReportingStockComp.RenderControl(hw);

和visual studio说：“必须使用runat = server声明GridView”

或阻止：

pdfDoc.Close();

他说：pdfDoc是空的......

有人有想法吗？

Answer 1

添加以下代码以避免runat =“server”错误。

public override void VerifyRenderingInServerForm(Control control)
{
    /* Verifies that the control is rendered */
}

您可能希望禁用分页，以便将Gridview的所有行导出为PDF。

在gridview的rendercontrol方法之前添加以下代码。

 gvReportingStockComp.AllowPaging = false;
 gvReportingStockComp.DataBind();

如果您有任何疑问，请参阅下文。

http://www.aspsnippets.com/Articles/Export-GridView-To-Word-Excel-PDF-CSV-Formats-in-ASP.Net.aspx

Answer 2

在PDF代码后添加Rendering功能

public override void VerifyRenderingInServerForm(Control control)
    {
        // verifies the control is rendered here
    }

iTextSharp以pdf格式生成gridview

2 个答案: