Question

我使用MS Chart Controls在我的Web应用程序（.Net 4.0）中生成了一个图表。我的要求是将特定图表导出为Excel文件作为图像。我写了下面提到的代码，试图将图表图像作为字节数组写入excel文件。但它在我的excel文件中导致了一些未知的字符。（字节数组可能已直接写入文件）。

byte[] bytes2;
    using (var chartimage = new MemoryStream())
    {
        Chart1.SaveImage(chartimage, ChartImageFormat.Png);
        bytes2 = chartimage.GetBuffer();
    }

    Response.Clear();
    Response.ContentType = "application/ms-excel";
    Response.AddHeader("content-disposition", "attachment; filename=StudentResults.xls");
    Response.BinaryWrite(bytes2);

    Response.End();

您能否帮助我以正确的方式将此图表写入excel文件？（不使用字节数组也可以）感谢

Answer 1

我能够找到实施它的正确方法;导出ms图表（ms图表控件）以excel作为图像。我很高兴在这里分享。正确的源代码示例如下。

string tmpChartName = "test2.jpg";
    string imgPath = HttpContext.Current.Request.PhysicalApplicationPath + tmpChartName;

    Chart1.SaveImage(imgPath);
    string imgPath2 = Request.Url.GetLeftPart(UriPartial.Authority) + VirtualPathUtility.ToAbsolute("~/" + tmpChartName);

    Response.Clear();
    Response.ContentType = "application/vnd.ms-excel";
    Response.AddHeader("Content-Disposition", "attachment; filename=test.xls;");
    StringWriter stringWrite = new StringWriter();
    HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
    string headerTable = @"<Table><tr><td><img src='" + imgPath2 + @"' \></td></tr></Table>";
    Response.Write(headerTable);
    Response.Write(stringWrite.ToString());
    Response.End();

谢谢：）

如何将MS Chart控件导出到Excel

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