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Hello,
When you are using the built-in filtering functionality, RadGrid creates a filter expressions that are applied over its datasource.
So, the only way to use the built-in filtering functionality you should use datafield for the column from the same datasource as RadGrid.
You could filter the ListBox datasource either with stand-alone filter control like RadFilter or you could provide custom logic in the code-behind to handle the filter process. In both cases you should build the expression and apply it manually.
Regards,
Andrey
the Telerik team
When you are using the built-in filtering functionality, RadGrid creates a filter expressions that are applied over its datasource.
So, the only way to use the built-in filtering functionality you should use datafield for the column from the same datasource as RadGrid.
You could filter the ListBox datasource either with stand-alone filter control like RadFilter or you could provide custom logic in the code-behind to handle the filter process. In both cases you should build the expression and apply it manually.
Regards,
Andrey
the Telerik team
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