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Clear Selected Rows Server Side / Clear DataSource
posted

I am currently using the WebHierarchicalDataGrid for a project and need to be able to clear the row selection (only one row may be selected at a time) and also clear the data source. The WebDataGrid has a function called ClearDataSource for clearing the data source and clearing the selected rows works as it should.

I tried a couple of ways - first just calling grid.Behaviors.Selection.SelectedRows.Clear() directly at the point where I need it to occur and that did not work. Then I tried setting a boolean at the point in the code where I need the selection to be cleared and then checking this value in the grid's Pre-Render Event. When I step through the code in the debugger, everything appears to be working - but the grid still has the previously selected row highlighted. We are currently using version 11.1.20111.2020.

Also, I need to be able to clear the datasource as well. But I can not find a function to do this. I have been forced to bind it to an empty dataset (very memory intensive).

 Does another post exist which already answers this question? Any input would sure be appreciated.

Thanks,

  • 720
    posted

    Update...

    I found documentation and read it (that's always a good idea I guess...) and was able to clear the selection of the parent band by calling grid.GridView.Behaviors.Selection.SelectedRows.Clear(). I also found grid.GridView.ClearDataSource() which appears to clear all of the data out of the grid.

    Thanks,