以自定义ComboBox样式更改ItemsPresenter以显示彼此相邻的项目

Question

I want ComboBox to contain Images as items (they will be added programatically). In default ComboBox they are displayed vertically. I would like to have them to be displayed like in VariableSizedWrapGrid but I'm not exactly sure how to do it. I have this ItemsPresenter for ComboBox style but changing it to anything else results in nothing being displayed.

Or maybe I should make it other way (using ListView?). I want selected item to be displayed like in ComboBox and after click all items displayed at once (around 25).

How it looks now:

What I want:

Answer 1

Change the ItemsPanel property:

<ComboBox>
    <ComboBox.ItemsPanel>
        <ItemsPanelTemplate>
            <WrapPanel/>
        </ItemsPanelTemplate>
    </ComboBox.ItemsPanel>
</ComboBox>

If you want to use something like VariableSizedWrapGrid you can create your own implementation or check out other peoples work for example: VariableSizedWrapGrid for WPF .

Answer 2

I've made some research and it seems it's not possible to achieve what I want. I'll just do it another way to get what I want ( Button with Flyout and ListView inside it should do the work).