Rebind gives error : 'There was a problem extracting DataKeyValues from the DataSource.' on Rebind

[Dennis]

Hi,

I am using a RadGrid with DetailTables.
I am using inline editing for each of my DetailTables.
I am able to perform Insert/Update operations. However, after the inert or update operation when I call Rebind on the RadGrid, I get the folowing error : There was a problem extracting DataKeyValues from the DataSource.
This message is displayed in Visual Studio in the catch block. However on the error page it says "

COLUMN_NAME is neither a DataColumn nor a DataRelation for table Table.

". I have data in my table. This error does not show up when the page loads normally. It only shows up when the Insert/Update event for the RadGrids DetailTable is fired.

Could someone provide a solution and tell me the reason why this is happening.

Thanks,

[Elliott]

perhaps you could use a NeedDataSource event handler and not try to refresh the grid yourself

[Dennis]

Hi,

I have not called DataBind anywhere in my code to bind data to the RadGrid.
I have used the RadGrid's NeedDataSource and DetailTableDataBind events to bind the Top level table and the DetailTables with the DataTables. I had read so in one of teleriks postings that assigning the DataSource property null, then calling the Rebind on the RadGrid initiates the process of firing the NeedDataSource event. I need the NeedDataSource as well as the DetailTableDataBind events to be fired so that the data in the grid refreshes. I have tried not calling the Rebind on the RadGrid, but that results in absolutely no rows being displayed in the RadGrid, only the headers are shown.

[Elliott]

hi David-I'm just a developer
perhaps if you post your code?  aspx and code behind?

do you have UniqueName="COLUMN_NAME" anywhere?

"when I call Rebind on the RadGrid, I get the folowing error" - what does this look like?

[Maria Ilieva]

Hello David,

It will be very helpful if you could open a regular support ticket and send us sample runnable version of your application. Thus we will be able to debug it locally and do our best to isolate the root cause of the issue you are facing.

Kind regards,
Maria Ilieva
the Telerik team

[Roman]

Make sure you don't have any "nulls" in your datasource collection. That's what caused the issue in my case.