A data source instance has not been supplied for the data source“Product_Detail” in Microsoft reporting service

Question

I`m trying to display record in a Report. Data is in the Dataset. but it is not binind to them. When forms load it shows it report layout. But when i click on the button it show

Answer 1

I just had this issue with VS 16.4.6 and the latest report designer extension 15.3.1.

For me it was caused by giving the data set a slightly different name to the set I'd chosen from the drop down. It took me ages to figure out what was wrong. A hunch suggested it might be an issue. So I renamed the data set to match the source data entity and the error went away.

But why offer the user the chance to call the data set something else and then not test that this actually works?

The report viewer extension is still really poor quality.