Define Style in ResourceDictionary, but EventSetter locally

Question

I have restyled a DataGrid and it got rather complex so I moved the styles (DataGrid, DataGridCell, DataGridRow,...) to a ResourceDictionary. I gave all of them a x:Key and referenced them e.g. as DataGrid.RowStyle="{StaticResource SuperRowStyle}". Now I want to use an EventSetter on the Row as well, but obviously I can't set it in the ResourceDictionary, but I can't set it in the Window as well, since it gets overridden by the RowStyle property. How can I do this? BR, Daniel

Create a new style in the window BasedOn the one defined in the resource dictionary. Use the EventSetter in this style. — Shivani Katukota, Apr 13 '18 at 10:14

score 1 · Accepted Answer · answered Apr 28 '18 at 06:51

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I'll answer it myself as a good solution is provided in the comments. I create a style in the window where I need the EventSetter and use BasedOn with the needed style.

answered Apr 28 '18 at 06:51

Daniel

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Geeez, makes total sense. I've been struggling for a couple of hours on this. – Nick Pearce May 02 '19 at 22:34

score 0 · Answer 2 · answered Apr 12 '18 at 14:48

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Now I want to use an EventSetter on the Row as well, but obviously I can't set it in the ResourceDictionary ..

Yes, you can provided that you add a code-behind file to the ResourceDictionary:

Is it possible to set code behind a resource dictionary in WPF for event handling?

The handler must be defined in the same class as the EventSetter.

answered Apr 12 '18 at 14:48

mm8

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I saw that, but I expected to be able to use the Window class for the EventHandler. That is not working however. – Daniel Apr 13 '18 at 06:24
No. As I mentioned, you *cannot* define the EventSetter in one class and the event handler in another. This won't work. But there should be no reason do to this anyway. You could call any method you want in the event handler. – mm8 Apr 13 '18 at 13:43

Define Style in ResourceDictionary, but EventSetter locally

2 Answers2