更新时间:2023-10-13 18:09:46
该属性存在:TreeView.SelectedItem
但它是只读的,所以你无法通过具有约束力的分配它,只有找回
How can I retrieve the item that is selected in a WPF-treeview? I want to do this in XAML, because I want to bind it.
You might think that it is SelectedItem
but apparently that does not exist is readonly and therefore unusable.
This is what I want to do:
<TreeView ItemsSource="{Binding Path=Model.Clusters}"
ItemTemplate="{StaticResource ClusterTemplate}"
SelectedItem="{Binding Path=Model.SelectedCluster}" />
I want to bind the SelectedItem
to a property on my Model.
But this gives me the error:
'SelectedItem' property is read-only and cannot be set from markup.
Edit: Ok, this is the way that I solved this:
<TreeView
ItemsSource="{Binding Path=Model.Clusters}"
ItemTemplate="{StaticResource HoofdCLusterTemplate}"
SelectedItemChanged="TreeView_OnSelectedItemChanged" />
and in the codebehindfile of my xaml:
private void TreeView_OnSelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
{
Model.SelectedCluster = (Cluster)e.NewValue;
}
This property exists : TreeView.SelectedItem
But it is readonly, so you cannot assign it through a binding, only retrieve it