用于在 c# 中导出 pdf gridview 的 iTextSharp 类答案

【问题标题】：iTextSharp class for export pdf gridview in c#用于在 c# 中导出 pdf gridview 的 iTextSharp 类
【发布时间】：2015-09-02 10:33:50
【问题描述】：

使用这个 c# 代码，我需要以 PDF 格式导出一个 GridView。

我使用 iTextSharp 类。

我的问题是gridview的最后一列我设置了超链接标签。

在导出的pdf中，超链接的图像在相应的单元格内没有对齐，因为向右移动了其他单元格的所有值。

请查看附件图片。

有人知道我该如何解决这个问题吗？

你能推荐其他方法吗？

提前谢谢你。

请检查下面的代码。

   for (int rowIndex = 0; rowIndex < gvProducts.Rows.Count; rowIndex++)
      {
        for (int j = 0; j < gvProducts.Columns.Count; j++)
            {
                if (j == 10)
                {
                    cellText = (gvProducts.Rows[rowIndex].Cells[10].FindControl("img") as HyperLink).NavigateUrl;
                    string imagePath = Server.MapPath((gvProducts.Rows[rowIndex].Cells[10].FindControl("img") as HyperLink).ImageUrl);
                    iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(imagePath);
                    Chunk cImage = new Chunk(image, 0, 0, false);
                    Anchor anchor = new Anchor(cImage);
                    anchor.Reference = cellText.ToString();
                    table.AddCell(anchor);
                }
                else
                {
                    cellText = Server.HtmlDecode(gvProducts.Rows[rowIndex].Cells[j].Text);
                }

                cell = new PdfPCell(new Phrase(cellText, FontFactory.GetFont("PrepareForExport", 8)));                  
                cell.HorizontalAlignment = Element.ALIGN_CENTER;
                cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                cell.FixedHeight = 25f;
                table.AddCell(cell);
            }
        }

编辑#1

protected void ExportToPDFWithFormatting()
{
        PdfPTable table = null; 

        int colCount = gvProducts.Columns.Count;

        table = new PdfPTable(colCount);
        table.HorizontalAlignment = 1;
        table.WidthPercentage = 100;

        int[] colWidths = new int[gvProducts.Columns.Count];

        PdfPCell cell;
        string cellText;

        for (int colIndex = 0; colIndex < colCount; colIndex++)
        {

            colWidths[colIndex] = (int)gvProducts.Columns[colIndex].ItemStyle.Width.Value;
            cellText = Server.HtmlDecode(gvProducts.HeaderRow.Cells[colIndex].Text);

            BaseFont bf = BaseFont.CreateFont(
                                    BaseFont.HELVETICA,
                                    BaseFont.CP1252,
                                    BaseFont.EMBEDDED,
                                    false);

            iTextSharp.text.Font font = new iTextSharp.text.Font(bf, 10, iTextSharp.text.Font.BOLD, BaseColor.WHITE);
            cell = new PdfPCell(new Phrase(cellText.Replace("<br />", Environment.NewLine), font));

            cell.HorizontalAlignment = Element.ALIGN_CENTER;
            cell.VerticalAlignment = Element.ALIGN_MIDDLE;
            cell.FixedHeight = 55f;

            cell.BackgroundColor = new BaseColor(System.Drawing.ColorTranslator.FromHtml("#a52a2a"));

            table.AddCell(cell);
        }


        for (int rowIndex = 0; rowIndex < gvProducts.Rows.Count; rowIndex++)
        {
            if (gvProducts.Rows[rowIndex].RowType == DataControlRowType.DataRow)
            {
                for (int j = 0; j < gvProducts.Columns.Count; j++)
                {

                   if (j == 10)
                   {

                       cellText = (gvProducts.Rows[rowIndex].Cells[10].FindControl("img") as HyperLink).NavigateUrl;
                       string imagePath = Server.MapPath((gvProducts.Rows[rowIndex].Cells[10].FindControl("img") as HyperLink).ImageUrl);
                       iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(imagePath);
                       Chunk cImage = new Chunk(image, 0, 0, false);
                       Anchor anchor = new Anchor(cImage);
                       anchor.Reference = cellText.ToString();
                       table.AddCell(anchor);

                   }
                   else
                   {
                      cellText = Server.HtmlDecode(gvProducts.Rows[rowIndex].Cells[j].Text);
                   }

                      cell = new PdfPCell(new Phrase(cellText, FontFactory.GetFont("PrepareForExport", 8)));                  
                      cell.HorizontalAlignment = Element.ALIGN_CENTER;
                      cell.VerticalAlignment = Element.ALIGN_MIDDLE;
                      cell.FixedHeight = 25f;
                      table.AddCell(cell);

                }
            }
        }

    Document pdfDoc = new Document(PageSize.A3.Rotate(), 30f, 30f, 30f, 0f);

    PdfWriter.GetInstance(pdfDoc, Response.OutputStream);

    pdfDoc.Open();
    table.HeaderRows = 1;

    iTextSharp.text.Font fdefault = FontFactory.GetFont("Verdana", 18, iTextSharp.text.Font.BOLD, BaseColor.BLUE);

    string s;
    s = "Test Export";

    pdfDoc.Add(new Paragraph(s, fdefault));
    pdfDoc.Add(table);

    pdfDoc.Close();

    Response.ContentType = "application/pdf";
    Response.AddHeader("content-disposition", "attachment;" + "filename=" + DateTime.Now + ".pdf");
    Response.Cache.SetCacheability(HttpCacheability.NoCache);
    Response.Write(pdfDoc);
    Response.End();

}

编辑#2

<table class="mGrid" cellspacing="0" align="Center" rules="all" border="1" id="gvProducts" style="width:500px;border-collapse:collapse;">
    <tr>
        <th scope="col">&nbsp;</th>
                    <th scope="col">A</th>
                    <th scope="col">B</th>
                    <th scope="col">C</th>
                    <th scope="col">D</th>
                    <th scope="col">E</th>
                    <th scope="col">F</th>
                    <th scope="col">G</th>
                    <th scope="col">H</th>
                    <th scope="col">L</th>
                    <th scope="col">M</th>


    </tr>

            <tr style="background-color:#DCF5F5;">
        <td><input type="image" name="gvProducts$ctl02$imgbtnEdit" id="gvProducts_imgbtnEdit_0" src="/images/edit.gif" /></td>          
                     <td class="ddl_Class_new" align="left">1</td>  
                     <td class="ddl_Class_new" align="left">2</td>  
                     <td class="ddl_Class_new" align="left">3</td>  
                     <td class="ddl_Class_new" align="left">4</td>  
                     <td class="ddl_Class_new" align="left">5</td>  
                     <td class="ddl_Class_new" align="left">6</td>  
                     <td class="ddl_Class_new" align="left">7</td>  
                     <td class="ddl_Class_new" align="left">138,79</td>  
                     <td class="ddl_Class_new" align="left">NO</td>  
                     <td class="ddl_Class_new" align="left"><a id="gvProducts_img_0"><img src="/Images/cross-button.png" /></a></td>
    </tr>



            <tr style="background-color:#DCF5F5;">
        <td><input type="image" name="gvProducts$ctl03$imgbtnEdit" id="gvProducts_imgbtnEdit_1" src="/images/edit.gif" /></td>          
                     <td class="ddl_Class_new" align="left">1</td>  
                     <td class="ddl_Class_new" align="left">2</td>  
                     <td class="ddl_Class_new" align="left">3</td>  
                     <td class="ddl_Class_new" align="left">4</td>  
                     <td class="ddl_Class_new" align="left">5</td>  
                     <td class="ddl_Class_new" align="left">6</td>  
                     <td class="ddl_Class_new" align="left">7</td>  
                     <td class="ddl_Class_new" align="left">138,80</td>  
                     <td class="ddl_Class_new" align="left">NO</td>  
                     <td class="ddl_Class_new" align="left"><a id="gvProducts_img_1"><img src="/Images/cross-button.png" /></a></td>
    </tr>




            <tr style="background-color:#DCF5F5;">
        <td><input type="image" name="gvProducts$ctl04$imgbtnEdit" id="gvProducts_imgbtnEdit_2" src="/images/edit.gif" /></td>          
                     <td class="ddl_Class_new" align="left">1</td>  
                     <td class="ddl_Class_new" align="left">2</td>  
                     <td class="ddl_Class_new" align="left">3</td>  
                     <td class="ddl_Class_new" align="left">4</td>  
                     <td class="ddl_Class_new" align="left">5</td>  
                     <td class="ddl_Class_new" align="left">6</td>  
                     <td class="ddl_Class_new" align="left">7</td>  
                     <td class="ddl_Class_new" align="left">138,81</td>  
                     <td class="ddl_Class_new" align="left">NO</td>  
                     <td class="ddl_Class_new" align="left"><a id="gvProducts_img_2"><img src="/Images/cross-button.png" /></a></td>
    </tr>


            <tr style="background-color:#DCF5F5;">
        <td><input type="image" name="gvProducts$ctl05$imgbtnEdit" id="gvProducts_imgbtnEdit_3" src="/images/edit.gif" /></td>          
                     <td class="ddl_Class_new" align="left">1</td>  
                     <td class="ddl_Class_new" align="left">2</td>  
                     <td class="ddl_Class_new" align="left">3</td>  
                     <td class="ddl_Class_new" align="left">4</td>  
                     <td class="ddl_Class_new" align="left">5</td>  
                     <td class="ddl_Class_new" align="left">6</td>  
                     <td class="ddl_Class_new" align="left">7</td>  
                     <td class="ddl_Class_new" align="left">138,82</td>  
                     <td class="ddl_Class_new" align="left">NO</td>  
                     <td class="ddl_Class_new" align="left"><a id="gvProducts_img_3"><img src="/Images/cross-button.png" /></a></td>
    </tr>

</table>

编辑#3

                <asp:GridView ID="gvProducts" AutoGenerateColumns="False" EmptyDataText="Empty"
                    runat="server" DataKeyNames="ID" CssClass="mGrid" Width="500" HorizontalAlign="Center"
                    OnRowEditing="gvProducts_RowEditing" OnRowCancelingEdit="gvProducts_RowCancelingEdit" OnRowUpdating="gvProducts_RowUpdating"
                    OnRowDataBound="gvProducts_RowDataBound" OnRowDeleting="gvProducts_RowDeleting"
                    OnSorting="gvProducts_Sorting" AllowSorting="true" OnPageIndexChanging="gvProducts_PageIndexChanging">

                    <Columns>

                        <%--Start 0--%>
                        <asp:TemplateField>
                            <ItemTemplate>
                                <asp:ImageButton ID="imgbtnEdit" CommandName="Edit" runat="server" ImageUrl="/images/edit.gif"
                                    ToolTip="Edit" OnClientClick="return confirm('confirm?');" />
                            </ItemTemplate>
                            <EditItemTemplate>
                                <asp:ImageButton ID="imgbtnUpdate" CommandName="Update" runat="server" ImageUrl="/images/update.gif"
                                    ToolTip="Update" OnClientClick="if(!confirm('confirm?')) return;" />
                                <asp:ImageButton ID="imgbtnCancel" runat="server" CommandName="Cancel" ImageUrl="/images/cancel.gif"
                                    ToolTip="Cancel" OnClientClick="return confirm('confirm??');" />
                                <asp:ImageButton ID="imgbtnDelete" runat="server" CommandName="Delete" ImageUrl="/images/delete.gif"
                                    ToolTip="Delete" OnClientClick="return confirm('confirm?');" />

                            </EditItemTemplate>
                        </asp:TemplateField>
                        <%--End 0--%>

                        <asp:BoundField DataField="A" HeaderText="A" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="B" HeaderText="B" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="C" HeaderText="C" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="D" HeaderText="D" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="E" HeaderText="E" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="F" HeaderText="F" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="G" HeaderText="G" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="H" HeaderText="H" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />
                        <asp:BoundField DataField="L" HeaderText="L" ReadOnly="true" HtmlEncode="false" ItemStyle-HorizontalAlign="Left" ItemStyle-CssClass="ddl_Class_new" />

                        <%--Start 10--%>
                        <asp:TemplateField HeaderText="attached" ItemStyle-HorizontalAlign="Center">
                            <ItemTemplate>
                                <asp:HyperLink ID="img" runat="server" NavigateUrl='<%# Eval("attached").ToString() %>'
                                    ImageUrl='<%#(String.IsNullOrEmpty(Eval("attached").ToString()) ? "/images/cross-button.png" : "/images/download.gif")%>'
                                    ToolTip='<%#(String.IsNullOrEmpty(Eval("attached").ToString()) ? "No available" : "Available")%>'
                                    Target="_blank" BorderStyle="None" ForeColor="Transparent">
                                </asp:HyperLink>
                            </ItemTemplate>
                        </asp:TemplateField>
                        <%--End 10--%>


                    </Columns>
                </asp:GridView>

【问题讨论】：

请提供完整的功能，这里有些变量没有在这段代码中声明。
@Sunny 好的，谢谢；在我的第一个问题完整功能中的编辑#1中
我还想看到 Gridview HTML 的另一件事。
@Sunny 好的，谢谢；在我的第一个问题 Gridview HTML 中编辑 #2
我问的是gridview aspx 代码而不是浏览器html

标签： c# asp.net gridview itextsharp

【解决方案1】：

我创建了一个示例：在这里您可以看到图像超链接放置在适当的位置。我在这里使用静态值，因为我无法根据您的网格列生成适当的条件。

CS：

 protected void Button1_Click(object sender, EventArgs e)
{

    // ExportToPDFWithFormatting();
    Response.ContentType = "application/pdf";

    using (MemoryStream m = new MemoryStream())
    {
        try
        {
            // create the PDF document
            Document document = new Document(PageSize.A4);
            PdfWriter.GetInstance(document, m);

            // open document to add content
            document.Open();

            generatePDF(document);

            // close the document
            document.Close();

            // stream the PDF to the user
            Response.OutputStream.Write(m.GetBuffer(), 0, m.GetBuffer().Length);
        }
        catch (Exception ex)
        {
            throw ex;
        }
    }
    //Response.AddHeader("content-disposition", "inline;filename=AdHockTask.pdf");
    Response.End();
}
private void generatePDF(Document document)
{
    iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(Server.MapPath("~/close.png"));
    #region title
    PdfPTable title = new PdfPTable(3);
    title.TotalWidth = 550;
    title.LockedWidth = true;
    int[] headerwidths = { 20, 50, 30 }; // percentage
    title.SetWidths(headerwidths);

    title.DefaultCell.HorizontalAlignment = Element.ALIGN_CENTER;
    title.DefaultCell.Border = 0;
    title.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE;

    title.AddCell(img);
    title.AddCell(new Phrase("Report", FontFactory.GetFont("Verdana", 12, Font.BOLD)));

    PdfPCell PintDate = new PdfPCell(new Phrase("Print Date: " + "  " + DateTime.Now.ToShortDateString(), FontFactory.GetFont("Verdana", 9, Font.NORMAL)));
    //PdfPCell RepID = new PdfPCell(new Phrase(currRepID, FontFactory.GetFont("Verdana", 10, Font.BOLD)));
    PintDate.HorizontalAlignment = Element.ALIGN_RIGHT;
    PintDate.VerticalAlignment = Element.ALIGN_MIDDLE;
    PintDate.Border = 0;
    title.AddCell(PintDate);
    document.Add(title);

    #endregion

    #region detail
    PdfPTable detail = new PdfPTable(5);
    detail.TotalWidth = 550f;
    detail.LockedWidth = true;
    float[] headerwidths1 = { 23, 12, 15, 15, 15 }; // percentage
    detail.SetWidths(headerwidths1);
    //detail.HeaderRows = 1;
    detail.SplitLate = false;
    //document.Add(new Paragraph(" "));
    PdfPCell eqipment = new PdfPCell();
    eqipment.HorizontalAlignment = Element.ALIGN_LEFT;
    eqipment.Colspan = 8;
    eqipment.PaddingBottom = 5f;

    PdfPTable EqipmentTable = GeneratePdfEquipmentPartsReplacement();
    eqipment.AddElement(EqipmentTable);
    detail.AddCell(eqipment);
    #endregion

    document.Add(detail);
}

private PdfPTable GeneratePdfEquipmentPartsReplacement()
{

    PdfPTable tblEquipmentPartsReplacement = new PdfPTable(5);
    tblEquipmentPartsReplacement.TotalWidth = 550;
    tblEquipmentPartsReplacement.LockedWidth = true;
    int[] PartsUsedDuringRepairWidths = { 9, 13, 17, 9, 10 }; // percentage
    tblEquipmentPartsReplacement.SetWidths(PartsUsedDuringRepairWidths);
    tblEquipmentPartsReplacement.DefaultCell.Border = 1;
    tblEquipmentPartsReplacement.DefaultCell.HorizontalAlignment = Element.ALIGN_CENTER;
    tblEquipmentPartsReplacement.DefaultCell.VerticalAlignment = Element.ALIGN_MIDDLE;

    #region Header Section

    PdfPCell cellEquipmentPartsReplacement = new PdfPCell(new Phrase("Table Header", FontFactory.GetFont("Verdana", 10, Font.BOLD)));
    cellEquipmentPartsReplacement.Colspan = 9;
    cellEquipmentPartsReplacement.BackgroundColor = new Color(180, 180, 180);
    cellEquipmentPartsReplacement.PaddingBottom = 5f;
    tblEquipmentPartsReplacement.AddCell(cellEquipmentPartsReplacement);

    #endregion

    #region Grid's Headers

    PdfPCell cellPartIDAH = new PdfPCell(new Phrase("Column 1", FontFactory.GetFont("Verdana", 9, Font.BOLD)));
    cellPartIDAH.HorizontalAlignment = Element.ALIGN_CENTER;
    cellPartIDAH.BackgroundColor = new Color(235, 235, 235);

    PdfPCell cellEquipPartsAH = new PdfPCell(new Phrase("Column 2", FontFactory.GetFont("Verdana", 9, Font.BOLD)));
    cellEquipPartsAH.HorizontalAlignment = Element.ALIGN_LEFT;
    cellEquipPartsAH.BackgroundColor = new Color(235, 235, 235);

    PdfPCell cellPartNumberAH = new PdfPCell(new Phrase("HyperLink", FontFactory.GetFont("Verdana", 9, Font.BOLD)));
    cellPartNumberAH.HorizontalAlignment = Element.ALIGN_CENTER;
    cellPartNumberAH.BackgroundColor = new Color(235, 235, 235);

    PdfPCell cellSerialAH = new PdfPCell(new Phrase("Column 4", FontFactory.GetFont("Verdana", 9, Font.BOLD)));
    cellSerialAH.HorizontalAlignment = Element.ALIGN_CENTER;
    cellSerialAH.BackgroundColor = new Color(235, 235, 235);

    PdfPCell cellDescriptionAH = new PdfPCell(new Phrase("HyperLink", FontFactory.GetFont("Verdana", 9, Font.BOLD)));
    cellDescriptionAH.HorizontalAlignment = Element.ALIGN_CENTER;
    cellDescriptionAH.BackgroundColor = new Color(235, 235, 235);

    /////////////////////////////////////////
    tblEquipmentPartsReplacement.AddCell(cellPartIDAH);
    tblEquipmentPartsReplacement.AddCell(cellEquipPartsAH);
    tblEquipmentPartsReplacement.AddCell(cellPartNumberAH);
    tblEquipmentPartsReplacement.AddCell(cellSerialAH);
    tblEquipmentPartsReplacement.AddCell(cellDescriptionAH);


    #endregion

    #region Grid's Values

    for (int i = 0; i < 10; i++)
    {
        //Equipment
        PdfPCell cellPartIDAV = new PdfPCell(new Phrase("partid- " + i, FontFactory.GetFont("Verdana", 8)));
        cellPartIDAV.VerticalAlignment = Element.ALIGN_MIDDLE;
        tblEquipmentPartsReplacement.AddCell(cellPartIDAV);

        PdfPCell cellEquipPartsAV = new PdfPCell(new Phrase("test- " + i, FontFactory.GetFont("Verdana", 8)));
        cellEquipPartsAV.VerticalAlignment = Element.ALIGN_MIDDLE;
        tblEquipmentPartsReplacement.AddCell(cellEquipPartsAV);

        iTextSharp.text.Image image1 = iTextSharp.text.Image.GetInstance(Server.MapPath("~/close.png"));
        Chunk cImage1 = new Chunk(image1, 0, 0, false);
        Anchor anchor1 = new Anchor(cImage1);
        anchor1.Reference = "www.google.com";
        tblEquipmentPartsReplacement.AddCell(anchor1);

        PdfPCell cellSerialAV = new PdfPCell(new Phrase("test- " + i, FontFactory.GetFont("Verdana", 8)));
        cellSerialAV.VerticalAlignment = Element.ALIGN_MIDDLE;
        tblEquipmentPartsReplacement.AddCell(cellSerialAV);

        iTextSharp.text.Image image = iTextSharp.text.Image.GetInstance(Server.MapPath("~/close.png"));
        Chunk cImage = new Chunk(image, 0, 0, false);
        Anchor anchor = new Anchor(cImage);
        anchor.Reference = "www.yahoo.com";
        tblEquipmentPartsReplacement.AddCell(anchor);
    }


    return tblEquipmentPartsReplacement;
    #endregion

    //////////////////////////////////////////////
    //document.Add(tblEquipmentPartsReplacement);

}

请与您的关闭按钮图像进行交叉检查，可能是它在下方占用空间。

这是我正在使用的图片：

希望您能根据需要修改此代码。希望这能解决您的问题。

【讨论】：

谢谢您，先生，但就我而言，您的建议不起作用。我关闭了这个帖子。
抱歉，我已尽力解决您的问题。希望以后能帮到你。