Using xaml to Bind A List Nested In a List to ListViews

Question

I have a UserControl that contains two ListViews. The ListView on the left is PLC's the ListView on the Right is the Tags For that PLC. I want to bind in the xaml if all possible. If not binding in the code behind will work.

**PLC Class**  

public class PLC  
{  
 public string Name { get; set; }  
 public ObservableCollection Tags { get; set; }  
 public PLC(string name)  
 {  
 Name = name;  
 Tags = new ObservableCollection();  
 }  
 public override string ToString()  
 {  
 return Name;  
 }  
}

Tag Class

public class Tag  
{  
 public Tag(string name, int value)  
 {  
 Name = name;  
 Value = value;  
 }  
 public string Name { get; set; }  
 public int Value { get; set; }  
}

Relevant Xaml

Thank you for your help. I put Can't Figure this out where I need help. The UserControl is getting the DataContext from the parent. So it works but, in the designer with Resharper it complains.

Answer

Hi, @Philip Borchert .

If you want to bind two separate ListViews, you could set two Collections.

Codebehind:
241271-new-text-document-5.txt

The result:

For Nested Collection, it is generally bound in the following way.

UserControl:

      
          
              
          
          
              
                  
                  
              
              
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MainWindow.xaml:  
  
      
          
              
          
      
  
MainWindow.xaml.cs:  
  
    using System.Collections.ObjectModel;  
    using System.Windows;  
      
    namespace ListViewShowData  
    {  
        public partial class MainWindow : Window  
        {  
            public MainWindow()  
            {  
                InitializeComponent();  
            }  
             
        }  
        public class ViewModel  
        {  
            public ObservableCollection PLCs { get; set; } = new ObservableCollection();  
            public ViewModel()  
            {  
                PLCs.Add(new PLC() { Name = "plc1", Tags = new ObservableCollection() { new Tag("name1", 1),new Tag("name2", 2) } } );  
                PLCs.Add(new PLC() { Name = "plc2", Tags = new ObservableCollection() { new Tag("name3", 3),new Tag("name4", 4) } } );  
            }  
        }  
        public class PLC  
        {  
            public string Name { get; set; }  
            public ObservableCollection Tags { get; set; }  
            public PLC() { }  
            public PLC(string name)  
            {  
                Name = name;  
                Tags = new ObservableCollection();  
            }  
        }  
        public class Tag  
        {  
           public Tag()  
           {  
           }  
            public Tag(string name, int value)  
            {  
                Name = name;  
                Value = value;  
            }  
            public string Name { get; set; }  
            public int Value { get; set; }  
        }  
    }

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Using xaml to Bind A List Nested In a List to ListViews

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