The DataSet Visualizer allows you to view the contents of a DataSet, DataTable, DataView, or DataViewManager object. You can access this visualizer by clicking on the magnifying glass icon that appears next to the Value for one of those objects in a debugger variables window or in a DataTip.
Let’s assume you put a breakpoint on some line and it hit there; you wanted to see the contents of a DataSet that you used earlier this line which debugger hit. You just hover your mouse on your DataSet variable and you will see a tiny little magnifying glass icon as below :
When you click on it, it will show you the content of the dataset in a window as below :
You can make changes to the objects in this visualizer. Changes will be saved as soon as you commit a row.