Report.Services 2008 - get page-count or row-count in the c#-code

Question

hello
is it possible to get from the ReportViewer-control / ServerReport the page-count or row-count after the
reportViewerCheck.ServerReport.Refresh();
statement ??
many thanks in advance for any clue & regards
Michael

Answer 1

Hi Michael,
Yes, you can get them. For row count, you can add a parameter to store the row count of your dataset in your report.
Here are the steps:
1.     Add 2 datasets in your report, one for report use and the other on is to row count use. For instance:
DataSet1: SELECT     HumanResources.vEmployee.* FROM         HumanResources.vEmployee
DataSet2: SELECT     COUNT(*) FROM         HumanResources.vEmployee
2.     Add a parameter, set the parameter’s default value set to Get Values from a query and select DataSet2.
Then, in your ASP.NET web application code you can use the following function to get the row count of the report:
private int GetReportRowCount(ReportViewer report)
            return Convert.ToInt32(report.ServerReport.GetParameters()[0].Values[0].ToString());
For page count, you can refer to the following code:
private int GetReportPageCount(ReportViewer report)
            return report.ServerReport.GetTotalPages();
You may not get the correct row count and page count in after executing Refresh () method, that’s because when you run this method, it will start another thread to refresh the report and the code below Refresh () method will not wait refreshing complete but run it. For instance, you may get the page count as o if you run the following code in the Button event:
// Click this Button to refresh the ReportViewer1
        protected void btnGetPageCount_Click(object sender, EventArgs e)
            // Refresh the ReportViewer1
            this.ReportViewer1.ServerReport.Refresh();
            // Get ReportViewer1's page count and display in the txtPageCount TextBox
            this.txtPageCount.Text = this.ReportViewer1.ServerReport.GetTotalPages().ToString();
You can run the refresh in separate events and get page count in another event, such as below code:
        // Click this Button to refresh the ReportViewer1
        protected void btnGetPageCount_Click(object sender, EventArgs e)
            // Refresh the ReportViewer1
            this.ReportViewer1.ServerReport.Refresh();
        // Display the txtPageCount's text to ReportViewer's page count
        protected void btnGetPageCount2_Click(object sender, EventArgs e)
            // Get ReportViewer1's page count and display in the txtPageCount TextBox
            this.txtPageCount.Text = this.ReportViewer1.ServerReport.GetTotalPages().ToString();
Hope this helps! I would suggest you post a new thread in Visual Studio Report Controls forum if you need more help about using ReportViewer in ASP.NET web application.
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