如何從asp.net的gridview中將圖像導出到excel？

Question

我有一個由圖像列組成的ASPxGridView。 當我單擊ExportToPDF時，圖像顯示為pdf。 但是，如果我單擊ExportToXls，則圖像不會顯示在excel中。 問題是什么？ 我在Visual Studio中使用Devexpress 14.2。 PS = gridview中的圖像大小不同。

 <!DOCTYPE html> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> </head> <body> <form id="form1" runat="server"> <table> <tr> <td style="padding-right: 4px"> <dx:ASPxButton ID="btnPdfExport" runat="server" Text="Export to PDF" OnClick="btnPdfExport_Click" /> </td> <td style="padding-right: 4px"> <dx:ASPxButton ID="btnXlsExport" runat="server" Text="Export to XLS" OnClick="btnXlsExport_Click" /> </td> <td style="padding-right: 4px"> <dx:ASPxButton ID="btnXlsxExport" runat="server" Text="Export to XLSX" OnClick="btnXlsxExport_Click" /> </td> <td style="padding-right: 4px"> <dx:ASPxButton ID="btnRtfExport" runat="server" Text="Export to RTF" OnClick="btnRtfExport_Click" /> </td> <td> <dx:ASPxButton ID="btnCsvExport" runat="server" Text="Export to CSV" OnClick="btnCsvExport_Click" /> </td> </tr> </table> <dx:ASPxGridView ID="Grid" runat="server" AutoGenerateColumns="False" DataSourceID="XmlDataSource1"> <Columns> <dx:GridViewDataTextColumn FieldName="Common_Name" Caption="Common name" /> <dx:GridViewDataTextColumn FieldName="Species_Name" Caption="Species name" /> <dx:GridViewDataImageColumn FieldName="ImagePath" Caption="Image"> <PropertiesImage> <ExportImageSettings Width="180" Height="120" /> </PropertiesImage> </dx:GridViewDataImageColumn> </Columns> <SettingsPager PageSize="30" /> </dx:ASPxGridView> <dx:ASPxGridViewExporter ID="GridExporter" runat="server" GridViewID="Grid" OnRenderBrick="GridExporter_RenderBrick" /> <asp:XmlDataSource ID="XmlDataSource1" runat="server" DataFile="~/Intranet/denemebru/Fishes.xml" /> </form> </body> </html>

Answer 1

public partial class Intranet_denemebru_RaporDeneme2 : System.Web.UI.Page
{
    protected void GridExporter_RenderBrick(object sender, ASPxGridViewExportRenderingEventArgs e)
    {
        var dataColumn = e.Column as GridViewDataColumn;
        if (dataColumn != null && dataColumn.FieldName == "ImagePath" && e.RowType == GridViewRowType.Data)
            e.ImageValue = GetImageBinaryData(e.Value.ToString());
    }

    protected void btnPdfExport_Click(object sender, EventArgs e)
    {
        GridExporter.WritePdfToResponse();
    }
    protected void btnXlsExport_Click(object sender, EventArgs e)
    {
        GridExporter.WriteXlsToResponse();
    }
    protected void btnXlsxExport_Click(object sender, EventArgs e)
    {
        GridExporter.WriteXlsxToResponse();
    }
        byte[] GetImageBinaryData(string relativePath)
    {
        string path = Server.MapPath(relativePath);
        return File.Exists(path) ? File.ReadAllBytes(path) : null;
    }
}

如何從asp.net的gridview中將圖像導出到excel？

問題描述

1 個解決方案

解決方案1
0 2017-11-22 08:40:05

如何從asp.net的gridview中將圖像導出到excel？

問題描述

1 個解決方案

解決方案1 0 2017-11-22 08:40:05

解決方案1
0 2017-11-22 08:40:05