我怎么没有水晶报表查看器加载水晶报表

 

using CrystalDecisions.CrystalReports.Engine;

 



 

protected void btn_Click( object sender, EventArgs e )

{

	try

	{

		// Get the report document

		ReportDocument report = new ReportDocument();

 

		// it was guessed that the .rpt file is under 'Reporting' folder of the project

		report.Load( Server.MapPath( " /Reporting/report1.rpt" ) );

		

		// Stop buffering the response

		Response.Buffer = false;

		// Clear the response content and headers

		Response.ClearContent();

		Response.ClearHeaders();

	

		// Export the Report to Response stream in PDF format

		report.ExportToHttpResponse( ExportFormatType.PortableDocFormat, Response, false, "My Report");

	}

	catch( Exception ex )

	{

		// use any logic to show the error, e.g. label, messageBox..

	}

}