如何转换为图像的报告？ [英] How to convert the report to an image?

问题描述

我用报告查看器来显示我的报告。

现在我想的报告转换为图像。如何能够在RDLC报告转换为图像后来它来画。

Now I want to convert the report to an image . How it possible to convert the RDLC report to an image to draw on it later .

有没有图书馆或方法来做到这一点？

Is there any library or method to do that ?

推荐答案

您必须创建的实例你的的ReportViewer ：

You have to create an instance of your ReportViewer:

ReportViewer report = new ReportViewer();

设置它根据你要创建的报告类型适当性，并通过它需要的所有参数，例如：

Set up it with proper properties according to the report type you're about to create and passing all parameters it needs, for example:

report.ProcessingMode = ProcessingMode.Remote;
report.ServerReport.ReportPath = reportPath;
report.ServerReport.SetParameters(reportParameters);

现在你可以问的ReportViewer 渲染格式的报告，你preFER，它会回报给你一个字节数组，你可以简单地传输到客户端或保存的地方：

Now you can ask the ReportViewer to render the report in the format you prefer, it'll return to you a byte array that you can simply stream to the client or save somewhere:

byte[] reportContent = report.ServerReport.Render(reportFormat);

reportFormat 是字符串所要求的格式，例如获得。 TIF 图像，你要问的图像格式，对于 .PDF 文件，你要问PDF（请参阅MSDN其他支持的格式，就取决于你使用的版本）。

reportFormat is a string with the required format, for example to get a .TIF image you have to ask for the "IMAGE" format, for a .PDF file you have to ask for "PDF" (consult MSDN for other supported formats, they depends on the version you're using).

现在你可以简单地保存 reportContent 来的文件（或流式处理的响应，加入适量头）：

Now you can simply save reportContent to a file (or to stream it in the response, adding appropriate headers):

System.IO.File.WriteAllBytes(path, reportContent);

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