This behaviour will happen if you are binding to a collection that has duplicate objects in it. Duplication can occur due to having added an object multiple times or because equality has been redefined for the objects in question.
WPF TabControl, switching to another TabItem does not work, sticks to first TabItem
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04-04-2022 - |
سؤال
I have a control that contains following XAML code. It works fine excepted that I caInnot switch to another TabItem. I read that TabControl
virtualizes the TabItem
, I suspect the strange behaviour, namely that I cannot get to display any other TabItem as the first one, is related to this.
<TabControl ItemsSource="{Binding Items}">
<TabControl.ItemTemplate>
<DataTemplate> <!-- header -->
<TextBlock Text="{Binding Title}"></TextBlock>
</DataTemplate>
</TabControl.ItemTemplate>
<TabControl.ContentTemplate>
<DataTemplate x:Shared="False"> <!-- tabitem content -->
<controls:ItemControl Item="{Binding}" />
</DataTemplate>
</TabControl.ContentTemplate>
</TabControl>
I tried to set the x:Shared
attribute of the DataTemplate
to False
but has not the expected effect. Is there a way to reach this without going the way of using a custom style and replacing the TabControl
with an ItemsControl
. I mean the functionality of TabControl
is what I would like, I would like to simply use it with ItemsSource
binding...
المحلول
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