What's the difference between ReportViewer.LocalReport.Refresh and ReportViewer.RefreshData?

Question

What's the difference between ReportViewer.LocalReport.Refresh and ReportViewer.RefreshData ? It is necessary to execute ReportViewer.LocalReport.Refresh() before ReportViewer.RefreshData() when rendering a local RDLC report, or there is another way?

Answer 1

As per my understanding, Calling the 'ReportViewer.RefreshReport()' method causes all data in the report to be reloaded and rendered. A call to 'ReportViewer.RefreshReport()' is automatically added to the Form Load event handler when a ReportViewer control is added to a form.

If you are only supplying new data but using the same report definition, you may need to call ReportViewer.LocalReport.Refresh().