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Fix MultiComboBox to works with items added in axaml

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This commit is contained in:
Samuel Bergeron-Drouin
2025-08-18 15:08:42 -04:00
parent 88318336a4
commit 976ddc4a5e
2 changed files with 51 additions and 28 deletions
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15
demo/Ursa.Demo/Pages/MultiComboBoxDemo.axaml
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@@ -11,6 +11,8 @@
x:CompileBindings="True" x:CompileBindings="True"
x:DataType="vm:MultiComboBoxDemoViewModel" x:DataType="vm:MultiComboBoxDemoViewModel"
mc:Ignorable="d"> mc:Ignorable="d">
<StackPanel Orientation="Vertical" Spacing="10">
<TextBlock>Binded ItemsSource</TextBlock>
<StackPanel Orientation="Horizontal"> <StackPanel Orientation="Horizontal">
<u:MultiComboBox <u:MultiComboBox
Watermark="Please Select" Watermark="Please Select"
@@ -19,6 +21,7 @@
SelectedItems="{Binding SelectedItems}" SelectedItems="{Binding SelectedItems}"
ItemsSource="{Binding Items}" > ItemsSource="{Binding Items}" >
</u:MultiComboBox> </u:MultiComboBox>
<u:MultiComboBox <u:MultiComboBox
Name="combo" Name="combo"
Watermark="Please Select" Watermark="Please Select"
@@ -42,6 +45,18 @@
</MenuFlyout> </MenuFlyout>
</u:MultiComboBox.ContextFlyout> </u:MultiComboBox.ContextFlyout>
</u:MultiComboBox> </u:MultiComboBox>
<ListBox ItemsSource="{Binding SelectedItems}" /> <ListBox ItemsSource="{Binding SelectedItems}" />
</StackPanel> </StackPanel>
<TextBlock>Items inside axaml (u:MultiComboBox's tag content)</TextBlock>
<u:MultiComboBox
Watermark="Please Select"
Width="300"
MaxHeight="200">
<u:MultiComboBoxItem>option 1</u:MultiComboBoxItem>
<u:MultiComboBoxItem>option 2</u:MultiComboBoxItem>
<u:MultiComboBoxItem>option 3</u:MultiComboBoxItem>
</u:MultiComboBox>
</StackPanel>
</UserControl> </UserControl>

8
src/Ursa/Controls/ComboBox/MultiComboBox.cs
View File

@@ -179,6 +179,14 @@ public class MultiComboBox : SelectingItemsControl, IInnerContentControl, IPopup
return new MultiComboBoxItem(); return new MultiComboBoxItem();
} }
protected override void PrepareContainerForItemOverride(Control container, object? item, int index)
{
if (item is MultiComboBoxItem containerItem)
{
container.DataContext = containerItem.Content;
}
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e) protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{ {
base.OnApplyTemplate(e); base.OnApplyTemplate(e);