如何在PDF上打印GridView？

我有一個Gridview，我應該打印在PDF上。我正在使用iTextSharp dll和引用，但我有點卡住了。我打開pdf，它是空白的，就像來自網格的信息不能正確複製。我可能會錯過與gridview數據綁定的步驟。任何人都可以幫忙下面是ASP.NET代碼：如何在PDF上打印GridView？

<asp:GridView ID="grdContact" runat="server" DataKeyNames="id_riga" 
     OnRowCancelingEdit="grdContact_RowCancelingEdit" 
     OnRowDataBound="grdContact_RowDataBound" 
     OnRowEditing="grdContact_RowEditing" 
     OnRowUpdating="grdContact_RowUpdating" 
     ShowFooter="True" 
     OnRowCommand="grdContact_RowCommand" 
     OnRowDeleting="grdContact_RowDeleting" 
     BackColor="#DEBA84" 
     BorderColor="#DEBA84" 
     BorderStyle="None" 
     BorderWidth="1px" 
     AutoGenerateColumns="False" 
     CellSpacing="2" 
     CellPadding="4" 
     Width="1195px" 
     ForeColor="#333333" GridLines="Horizontal"> 


     <EditRowStyle BackColor="#2461BF" /> 
     <FooterStyle BackColor="#507CD1" ForeColor="White" Font-Bold="True" /> 
     <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" /> 
     <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" /> 
     <RowStyle BackColor="#EFF3FB" /> 
     <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" /> 
     <SortedAscendingCellStyle BackColor="#F5F7FB" /> 
     <SortedAscendingHeaderStyle BackColor="#6D95E1" /> 
     <SortedDescendingCellStyle BackColor="#E9EBEF" /> 
     <SortedDescendingHeaderStyle BackColor="#4870BE" /> 

     <Columns> 

      <asp:TemplateField HeaderText="Id_Riga" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:Label ID="lblId_Riga" runat="server" Text='<%# Bind("id_riga") %>'></asp:Label> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:Label ID="lblNewId_Riga" runat="server"></asp:Label> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblId_Riga" runat="server" Text='<%# Bind("id_riga") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:TemplateField HeaderText="Num_Riga" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:Label ID="lblnumero_posizione" runat="server" Text='<%# Bind("numero_posizione") %>'></asp:Label> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:Label ID="lblNewnumero_posizione" runat="server"></asp:Label> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblnumero_posizione" runat="server" Text='<%# Bind("numero_posizione") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 


      <asp:TemplateField HeaderText="Quantità" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:TextBox ID="txtQuantita" runat="server" Text='<%# Bind("quantita") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:TextBox ID="txtNewQuantita" runat="server"></asp:TextBox> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblQuantita" runat="server" Text='<%# Bind("quantita") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:TemplateField HeaderText="Unità Di Misura" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:TextBox ID="txtUnita_Misura" runat="server" Text='<%# Bind("Unita_Misura") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:TextBox ID="txtNewUnita_Misura" runat="server"></asp:TextBox> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblUnita_Misura" runat="server" Text='<%# Bind("Unita_Misura") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:TemplateField HeaderText="Descrizione" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:TextBox ID="txtDescrizione" runat="server" Text='<%# Bind("Descrizione") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:TextBox ID="txtNewDescrizione" runat="server"></asp:TextBox> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblDescrizione" runat="server" Text='<%# Bind("Descrizione") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:TemplateField HeaderText="Prezzo Unitario" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:TextBox ID="txtPrezzo_Unitario" runat="server" Text='<%# Bind("valore_unitario") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:TextBox ID="txtNewPrezzo_Unitario" runat="server"></asp:TextBox> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblPrezzo_Unitario" runat="server" Text='<%# Bind("valore_unitario") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:TemplateField HeaderText="Iva" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:TextBox ID="txtIva" runat="server" Text='<%# Bind("iva_percento") %>'></asp:TextBox> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:TextBox ID="txtNewIva" runat="server"></asp:TextBox> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:Label ID="lblIva" runat="server" Text='<%# Bind("iva_percento") %>'></asp:Label> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:TemplateField HeaderText="Modifica" ShowHeader="False" HeaderStyle-HorizontalAlign="Left"> 
       <EditItemTemplate> 
        <asp:LinkButton ID="lbkUpdate" runat="server" CausesValidation="False" CommandName="Update" Text="Aggiorna"></asp:LinkButton> 
        <asp:LinkButton ID="lnkCancel" runat="server" CausesValidation="False" CommandName="Cancel" Text="Cancella"></asp:LinkButton> 
       </EditItemTemplate> 
       <FooterTemplate> 
        <asp:LinkButton ID="lnkAdd" runat="server" CausesValidation="False" CommandName="Insert" Text="Inserisci"></asp:LinkButton> 
       </FooterTemplate> 
       <ItemTemplate> 
        <asp:LinkButton ID="lnkEdit" runat="server" CausesValidation="False" CommandName="Edit" Text="Modifica"></asp:LinkButton> 
       </ItemTemplate> 

       <HeaderStyle HorizontalAlign="Left"></HeaderStyle> 
      </asp:TemplateField> 

      <asp:CommandField HeaderText="Cancella" ShowDeleteButton="True" ShowHeader="True" /> 


     </Columns> 
    </asp:GridView>

而這裏的代碼背後：

protected void creaPDF() 
{ 
    var document = new Document(PageSize.A4, 50, 50, 25, 25); 
    var output = new MemoryStream(); 
    var writer = PdfWriter.GetInstance(document, output); 
    document.Open(); 

    var titleFont = FontFactory.GetFont("Arial", 18, Font.BOLD); 
    var subTitleFont = FontFactory.GetFont("Arial", 14, Font.BOLD); 
    var boldTableFont = FontFactory.GetFont("Arial", 12, Font.BOLD); 
    var endingMessageFont = FontFactory.GetFont("Arial", 10, Font.ITALIC); 
    var bodyFont = FontFactory.GetFont("Arial", 12, Font.NORMAL); 
    var orderInfoTable = new PdfPTable(2); 
    orderInfoTable.HorizontalAlignment = 0; 
    orderInfoTable.SpacingBefore = 10; 
    orderInfoTable.SpacingAfter = 10; 
    orderInfoTable.DefaultCell.Border = 0; 
    orderInfoTable.SetWidths(new int[] { 1, 4 }); 


    orderInfoTable.AddCell(new Phrase("Tipo di documento:", boldTableFont)); 
    orderInfoTable.AddCell(txtPrenum.Text); 
    orderInfoTable.AddCell(new Phrase("Cognome:", boldTableFont));    
    orderInfoTable.AddCell(txtCognome.Text); 
    orderInfoTable.AddCell(new Phrase("Nome:", boldTableFont)); 
    orderInfoTable.AddCell(txtNome.Text); 
    orderInfoTable.AddCell(new Phrase("Indirizzo:", boldTableFont)); 
    orderInfoTable.AddCell(txtIndirizzo.Text);    
    orderInfoTable.AddCell(new Phrase("Prezzo totale:", boldTableFont)); 



    document.Add(orderInfoTable); 
    document.Close(); 

    Response.ContentType = "application/pdf"; 
    Response.AddHeader("Content-Disposition", string.Format("attachment;filename=Fattura-{0}.pdf", txtPrezzoTotale.Text)); 
    Response.BinaryWrite(output.ToArray()); 
}

來源

2015-04-03 Federico Sammarco

請參見[this]（http://stackoverflow.com/questions/25164257/how-to-convert-html-to-pdf-using-itextsharp），特別是第四段。 – 2015-04-03 18:47:26

這是處理網格視圖出口的代碼，它從下面的文章是：http://highoncoding.com/Articles/483_Exporting_GridView_to_PDF_Document.aspx

protected void ExportToPDFClick(object sender, EventArgs e) 
{ 

    Response.Clear(); 

    StringBuilder sb = new StringBuilder(); 

    StringWriter sw = new StringWriter(sb); 

    HtmlTextWriter htw = new HtmlTextWriter(sw); 



    gvCustomers.RenderControl(htw); 


    Response.ContentType = "application/pdf"; 

    Response.AddHeader("content-disposition", "attachment; filename=MypdfFile.pdf"); 

    Document document = new Document(); 

    PdfWriter.GetInstance(document, Response.OutputStream); 

    document.Open(); 

    string html = sb.ToString(); 

    XmlTextReader reader = new XmlTextReader(new StringReader(html)); 

    HtmlParser.Parse(document, reader); 

    document.Close(); 

    sw.Close(); 

    Response.Flush(); 

    Response.End(); 
}

但是我在代碼中看不到這一行，它是將網格渲染爲HtmlTextWriter對象的代碼。

grdContact.RenderControl(htw);

來源

2015-04-03 14:45:16

我有這個完全錯誤的。我建議不要使用iTextSharp。 Visual Studio包含一些明亮的對象：它們是報告查看器，可以在「使用Microsoft.Reporting.WebForms;」時引用首先必須創建報告，然後將其綁定到數據源。數據源必須顯示在數據集上。小菜一碟！

來源

2015-04-24 15:22:28

如何在PDF上打印GridView？

回答

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