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This is the migrated source code from an old post on my blog: https://velianarie.blogspot.com/2015/04/wpf-datagrid-dynamic-numeric-formatting.html ...

I'm very new to WPF, so new that I can't seen to find a way to get a value from my datagrid control. I figure something as simple as this should take no more than 2 lines at most, but after many ...

This example illustrates how to display a custom Tooltip when the mouse hovers over the cells of a certain column. Handle the onCellPrepared event to subscribe to the cell's mouseover/mouseout event ...