[英]Set DataContext to a view in a TabItem
I have a ViewModel that handle a view called "WorkSpace". 我有一个ViewModel处理一个称为“ WorkSpace”的视图。 Now without going into non-useful details, to create a new tab inside my TabControl contained in this workspace, i raise an event with the viewmodel, that is implemented in the code behind of the view:
现在,无需讨论无用的细节,在此工作区中包含的TabControl内创建一个新选项卡,我使用viewmodel引发了一个事件,该事件在视图背后的代码中实现:
MainViewModel.ShowTab += OpenTab;
MainViewModel.FocusTab += FocusTab;
private void OpenTab(object sender, TabEventArgs e)
{
// TabEventArgs are custom EventArgs who contain also a property called ChildViewModel
object x = WorkAreaTabCtrl.Resources[e.name];
WorkAreaTabCtrl.Items.Add(x);
// do something here
WorkAreaTabCtrl.SelectedItem = x;
}
private void FocusTab(object sender, TabEventArgs e)
{
object x = WorkAreaTabCtrl.Resources[e.name];
WorkAreaTabCtrl.SelectedItem = x;
}
Inside the resources of my tab control, i defined different kind of tab items like the following: 在我的标签控件的资源中,我定义了不同种类的标签项目,如下所示:
<mh:MetroTabItem CloseButtonEnabled="True" x:Key="{x:Static res:Resources.LBL_1}" Header="{x:Static res:Resources.LBL_1}">
<mh:MetroTabItem.Content>
<path2view:myView1 x:Name="view1"/>
</mh:MetroTabItem.Content>
</mh:MetroTabItem>
My problem is the following. 我的问题如下。 How can i assign the ChildViewModel contained inside the TabEventArgs as DataContext for the TabItem i'm getting in the OpenTab method?
我如何将包含在TabEventArgs中的ChildViewModel分配为我在OpenTab方法中获得的TabItem的DataContext?
您是否尝试过将x强制转换为TabItem并在其上设置DataContext?
((TabItem) x).DataContext = e.ChildViewModel;
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