Rotated ComboBox Popup Placement

[collinmdp]

I am trying to rotate a ComboBox. The ComboBox and all the items in the popup rotate correctly. However, the popup is in the wrong location. How do I change the position of the Popup so that it appears to the right of the ComboBox?

When the Width is 75, the popup is 150 lower.

When the Width is 150, the popup is 150 lower.

<ComboBox Style="{StaticResource MaterialDesignFloatingHintComboBox}" Width="150"
          Grid.Row="1" ItemsSource="{Binding Path=Configuration.Items}"
          SelectedItem="{Binding Path=Configuration.SelectedItem}"
          materialDesign:HintAssist.Hint="Selected Item" Margin="0 5">
    <ComboBox.LayoutTransform>
        <RotateTransform Angle="-90"/>
    </ComboBox.LayoutTransform>
    <ComboBox.ItemsPanel>
        <ItemsPanelTemplate>
            <StackPanel Orientation="Vertical">
                <StackPanel.LayoutTransform>
                    <RotateTransform Angle="90"/>
                </StackPanel.LayoutTransform>
            </StackPanel>
        </ItemsPanelTemplate>
    </ComboBox.ItemsPanel>
</ComboBox>

[nicolaihenriksen]

@collinmdp I believe this is just a bug. Rotating a standard ComboBox yields this result:

Simply applying the MaterialDesignFloatingHintComboBox style (or any of the MDIX ComboBox styles) to it yields this result:

I'll create an issue for this and look into fixing it...

[nicolaihenriksen]

I have created issue #3004 for this. I'll see if I can fix it...

[nicolaihenriksen]

@collinmdp The latest release, 4.7.0, has support for rotation of a ComboBox. However, the rotation is something that needs to be handled by the consumer via a callback. You can see examples of +- 90 degrees rotation in the demo app.

[collinmdp]

Thank you for the help