I created the attached form with a webgrid (version 8).

The datasource is set in the page code behind in the Webgrid's initializedatasource event. The grid returns over 13,000 rows of data that are initially grouped with aggregated totals.  I chose to use Client Binding because the performance is so much better.  However, the following problems happen when Client Binding is used:

- The group totals appear and then disappear

- When the columns are "ungrouped" all of the data in the grid shifts to the right and the first data column is a new, empty column.

These issues don't occur when the client binding option is removed.

I have tried a multitude of options recommended in the documentation and in the forum but can't seem to find a combination of settings that offers great performance, proper layout when ungrouped, and group totals that are always displayed.