将包含图像的页面导出到 Excel

发布于 2024-07-29 16:09:07 字数 640 浏览 2 评论 0原文

我的页面包含 2 个 gridview 和 2 个 mschart。我想将此页面导出到 Excel。为此，我将这些控件放入面板中并编写以下代码：

    Response.Clear();        
    Response.ContentType = "application/vnd.msexcel";
    Response.AddHeader("content-disposition", "attachment; filename=rapor.xls");
    Response.ContentEncoding = System.Text.Encoding.Default;
    System.IO.StringWriter stringWrite = new System.IO.StringWriter();
    System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
    panel1.RenderControl(htmlWrite);
    Response.Write(stringWrite.ToString());
    Response.End();

当此代码运行时，除了图表之外，一切正常。他们并不是来表现出色的。我该怎么做？

原文

I have page which contains 2 gridview and 2 mschart. ı want to export this page to excel. For this purpose I took these controls into a panel and write this code:

    Response.Clear();        
    Response.ContentType = "application/vnd.msexcel";
    Response.AddHeader("content-disposition", "attachment; filename=rapor.xls");
    Response.ContentEncoding = System.Text.Encoding.Default;
    System.IO.StringWriter stringWrite = new System.IO.StringWriter();
    System.Web.UI.HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);
    panel1.RenderControl(htmlWrite);
    Response.Write(stringWrite.ToString());
    Response.End();

When this code run, everything is ok except charts. They aren't coming to excel. How can I do it?

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面如桃花 2024-08-05 16:09:08

不是 100% 确定，但我猜图表被写入内存以显示在页面上，因此它们在请求后消失。

HTML 不允许在代码中嵌入图像，您必须引用外部文件。

选项：

检查图表是否允许将图像写入磁盘，但请注意您可能必须存储大量临时文件，以便 Excel 报告继续显示图像
（推荐）将报告导出为 PDF。

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伴我心暖 2024-08-05 16:09:08

尝试以下代码。我已经在本地 IIS 上进行了测试，它工作正常，并且在网格数据顶部包含诸如标题图像/徽标之类的图像。您必须将图表作为图像包含在内。

Response.ContentType = "application/vnd.ms-excel";        
Response.AddHeader("Content-Disposition", "attachment; filename=test.xls;");                
StringWriter stringWrite = new StringWriter();        
HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);        
dgrExport.DataSource = dtExport;        
dgrExport.DataBind();
dgrExport.RenderControl(htmlWrite);
string headerTable = @"<Table><tr><td><img src=""D:\\Folder\\1.jpg"" \></td></tr></Table>";
Response.Write(headerTable);
Response.Write(stringWrite.ToString());        
Response.End();

您可以根据您的要求调整图像的高度和宽度。标记需要相同的高度和宽度设置。

Try the following code. I have tested at local IIS, it is working properly and including the image like Header Image/Logo on top of the grid data. you have to include your chart as images.

Response.ContentType = "application/vnd.ms-excel";        
Response.AddHeader("Content-Disposition", "attachment; filename=test.xls;");                
StringWriter stringWrite = new StringWriter();        
HtmlTextWriter htmlWrite = new HtmlTextWriter(stringWrite);        
dgrExport.DataSource = dtExport;        
dgrExport.DataBind();
dgrExport.RenderControl(htmlWrite);
string headerTable = @"<Table><tr><td><img src=""D:\\Folder\\1.jpg"" \></td></tr></Table>";
Response.Write(headerTable);
Response.Write(stringWrite.ToString());        
Response.End();

you can adjust your image's height and width as per your requirement. Same height and width setting will be required for the <TD> tag.

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