Get Selected Radio Button in a Group (WPF)

Question

I have a ItemsControl in my program that contains a list of radio buttons.

Answer 1

One solution that comes to mind is to add an IsChecked boolean property to your Insertion entities and bind that to the `IsChecked' property of the Radio button. This way you can check the 'Checked' radio button in View Model.

Here is a quick and dirty example.

NB: I ignored the fact that the IsChecked can also be null, you could handle that using bool? if required.

The simple ViewModel

using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;

namespace WpfRadioButtonListControlTest
{
  class MainViewModel
  {
    public ObservableCollection Insertions { get; set; }

    public MainViewModel()
    {
      Insertions = new ObservableCollection();
      Insertions.Add(new Insertion() { Text = "Item 1" });
      Insertions.Add(new Insertion() { Text = "Item 2", IsChecked=true });
      Insertions.Add(new Insertion() { Text = "Item 3" });
      Insertions.Add(new Insertion() { Text = "Item 4" });
    }
  }

  class Insertion
  {
    public string Text { get; set; }
    public bool IsChecked { get; set; }
  }
}

The XAML - The code behind is not shown since it has no code other than than the generated code.