WPF：与 ContentControl 一起使用时未加载 DataTemplate 中的数据

Question

I am using ContentControl with DataTemplate to load data but data not getting loaded.

<DataTemplate DataType="{x:Type data:VesselInspectionSummaryViewModel}">                     
<StackPanel>                                  
<ContentControl Content="{Binding InternalInspections}" ContentTemplate="{StaticResource  InternalInspectionSummaryDataTemplate}"  ></ContentControl>
</StackPanel>....

My concern with ContentControl which is inside DataTemplate, definition of InternalInspectionSummaryDataTemplate is as mentioned below.

<DataTemplate x:Key="InternalInspectionSummaryDataTemplate" >
        <TextBlock Text="{Binding  Value}"   Style="{StaticResource   HomeDetailsTitleFontStyle}"  />
</DataTemplate>

But somehow I am not able to to display text for TextBlock which is a "Value". Can anyone please help me out to get value for field textBlock.

Answer 1

Finall I got the issue, it was not related with the xaml but in Viewmodel. Previous code was.

private readonly ObservableCollection<InspectionUrgencyDetailViewModel> _externalInspections;
public ObservableCollection<InspectionUrgencyDetailViewModel> ExternalInspections { get; set; }

private readonly ObservableCollection<InspectionUrgencyDetailViewModel> _internalInspections;
public ObservableCollection<InspectionUrgencyDetailViewModel> InternalInspections { get; set; }

If you see properties does not corresponds to private variables so changed it to below.

        private ObservableCollection<InspectionUrgencyDetailViewModel> _externalInspections;
        public ObservableCollection<InspectionUrgencyDetailViewModel> ExternalInspections
        {
            get { return _externalInspections; }
            set { Set(() => ExternalInspections, ref _externalInspections, value); }
        }

        private ObservableCollection<InspectionUrgencyDetailViewModel> _internalInspections;
        public ObservableCollection<InspectionUrgencyDetailViewModel> InternalInspections
        {
            get { return _internalInspections; }
            set { Set(() => InternalInspections, ref _internalInspections, value); }