A DataSource is supported per column only and you can't bind a specific cell to a different data source. You can, however, bind the editor shown for a specific cell to a specify data source. Please note that this data source should be a subset of the datasource bound to the while column. For additional information, please refer to the following article: Cascading ComboBoxes in RadGridView
In the example given in the article the editor is bound to a subset (vegetables or fruits) of the main data source used to the GridViewComboBoxColumn.
I noticed that you wrote about the same enquiry in this forum thread
. I would kindly ask you to use just one support channel to contact us about a particular question. This will allow our community to find the answer to the question more easily and will also allow us to provide you with a quicker response because we will need to review one thread instead of two.
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