System.InvalidOperationException: Objects added to a BindingSource’s list must all be of the same type.

Problem I am building a report using ReportViewer RDLC and I’m trying to bind the data. When I try to add my BindingList to the BindingSource I get the following exception: System.InvalidOperationException: “Objects added to a BindingSource’s list must all be of the same type.” Here’s the code causing this: Solution Set the BindingSource.DataSource to … Read more

ReportViewer doesn’t appear in the toolbox in Visual Studio

Problem You’re trying to use the ReportViewer control in Visual Studio but it’s not in the toolbox. Other symptoms: After manually adding the ReportViewer control to the toolbox clicking Design a new report does nothing. The RDLC report designer does not open and opening the RDLC file just opens the report markup. Solution Note: Tested … Read more