How to convert the report to an image? [closed]

问题

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Closed 6 years ago.

I use Report viewer to show my reports .

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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 .

Is there any library or method to do that ?

回答1:

You have to create an instance of your ReportViewer:

ReportViewer report = new ReportViewer();

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);

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 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).

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);

来源：https://stackoverflow.com/questions/14013295/how-to-convert-the-report-to-an-image