I am attaching a small sample project .
The goal was to set the ToolTips to cells displaying the value of the bound property per cell.
You mentioned you create the columns dynamically, so I have extracted the logic to set the tooltips in a separate method (please see the ApplyCellTemplateToColumns
The approach here was: I have added a template for the GridViewCell to the resources of the page. It has been slightly modified to display a tooltip bound to the value of the cell.
The method ApplyCellTemplateToColumns
sets this template to the columns anytime when it's called.
So after creating columns we just need to call this method.
All the best,
the Telerik team
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