问题:

I'm learning how to pass parameters to a Crystal Report from a C# asp.net webform. I've found one way to pass parameters, but its 6 lines of code per parameter. Can anyone suggest a simpler way to pass parameters (both discrete and range) to the report?

回答1:

Here's a question and answer I had that addresses this question:

Crystal Reports "File Break"

Out of the code that I posted in the answer, here's what I think is relevant to your problem:

private readonly CrystalReportViewer reportViewer = new CrystalReportViewer();
...
    crystalReport.Load(this.reportViewer.ReportSource.ToString());

    crystalReport.SetParameterValue("customerId", customerId);
    crystalReport.SetParameterValue("isCurrent", isCurrent);
    crystalReport.SetParameterValue("TotalSales", totalSales);

Good luck!