XAML GridView Datatrigger无法更新

Question

我在WPF项目中有这个XAML。

       <ListView Grid.Column="0" Grid.Row="3" Grid.RowSpan="4" Grid.ColumnSpan="2" ItemsSource="{Binding FilteredApps}" SelectedItem="{Binding SelectedApp, Mode=TwoWay}">
        <ListView.View>
            <GridView>
                <GridViewColumn Header="Status">
                    <GridViewColumn.CellTemplate >
                        <DataTemplate DataType="{x:Type Image}">
                            <Image>
                                <Image.Style>
                                    <Style TargetType="Image">
                                        <Style.Triggers>
                                            <DataTrigger Binding="{Binding State, Mode=TwoWay}" Value="{x:Static common:Globals+ModelState.Unedited}">
                                                <Setter Property="Source" Value="../Resources/IndraDoc/AppUnedited.png"/>
                                            </DataTrigger>
                                            <DataTrigger Binding="{Binding State, Mode=TwoWay}" Value="{x:Static common:Globals+ModelState.Edited}">
                                                <Setter Property="Source" Value="../Resources/IndraDoc/AppEdited.png"/>
                                            </DataTrigger>
                                            <DataTrigger Binding="{Binding State}" Value="{x:Static common:Globals+ModelState.New}">
                                                <Setter Property="Source" Value="../Resources/IndraDoc/AppNew.png"/>
                                            </DataTrigger>
                                            <DataTrigger Binding="{Binding State}" Value="{x:Static common:Globals+ModelState.Deleted}">
                                                <Setter Property="Source" Value="../Resources/IndraDoc/AppDeleted.png"/>
                                            </DataTrigger>
                                        </Style.Triggers>
                                    </Style>
                                </Image.Style>
                            </Image>

                        </DataTemplate>
                    </GridViewColumn.CellTemplate>
                </GridViewColumn>
                <GridViewColumn DisplayMemberBinding="{Binding Name}" Header="Namn"  Width="Auto"/>
            </GridView>
        </ListView.View>
    </ListView>

当财产＆＃34;姓名＆＃34;更改相应的更改显示在Grid中，但是当属性＆＃34; State＆＃34;更改图像未切换。有什么需要吗？

修改 奇怪的是，我编辑了XAML，并将ListView中的图像添加到SelectedApp，但这样工作正常，但这不是预期的功能。它现在可以使用，但我仍然很好奇为什么我的原始代码不会触发。

添加我执行statechange的代码：

   private void ChangeStateOnSelected(Globals.ModelState newState)
    {
        if (SelectedApp.State != newState) //dont do any changework if new state is same as current sate
        {
            if (SelectedApp.State == Globals.ModelState.New && newState == Globals.ModelState.Edited) //this is not allowed
                return;
            SelectedApp.State = newState;
            if (newState == Globals.ModelState.Unedited)
            {
                var selectedId = SelectedApp.Id;

                _allApps.Replace(_allApps.FirstOrDefault(x => x.Id == SelectedApp.Id), SelectedApp);
                _selectedApp = (Data.DataModel.App)_locationService.GetApp(selectedId);
                _filteredApps.Replace(_filteredApps.FirstOrDefault(x => x.Id == SelectedApp.Id), SelectedApp);
            }
            NotifyOfPropertyChange(() => SelectedApp);
            NotifyOfPropertyChange(() => AllApps);
            NotifyOfPropertyChange(() => FilteredApps);
        }
    }