Binding to this[enum] characteristic of a Class

[meriah]

Got it. enum

namespace namespace1.namespace2{
  enum PropertyObject 
  {
    A=1,
    B=2,
    ...
  }
}

and class is completely different. namespace

public class MyClass
{
  public Object this[namespace1.namespace2.PropertyObject property]
  {
    get
    {
      return ...;
    }
  }
}

List of copies ItemsSource ListViewThere is also DataTemplate Filled like ItemTemplate Ooh. ListView

<DataTemplate x:Key="MyTemplate">
  <TextBlock Text="{Binding Path=this[namespace1.namespace2.PropertyObject.A]}"/>
</DataTemplate>

I'm sure it's true. PropertyObject Eczepsies have been installed, but they say they can't reach this characteristic of how to create a validation. Binding to these properties?

mistake: System.Windows.Data Error: 40 : BindingExpression path error: '[]' property not found on 'object' ''MyClass' (HashCode=55693485)'. BindingExpression:Path=this[namespace1.namespace2.PropertyObject.A]; DataItem='MyClass'

[Oba22]

You're using an incorrect syntaxis to get the transfer value. In XAML, the X-ML spaces (namespace in C#) and the X-ML area (xmlns in XML) are put in the file cap. However, even an indication of the exact type may not be necessary: XAML is smart enough to add a line to the listing itself.

There's no "this" in the bindings either. You probably need a context or a context.Path='.' or simply Path=''or current component(s)RelativeSource='{RelativeSource Self}' and others).

Let's just say we have the following code:

namespace HakunaMatata
{
    public partial class MainWindow
    {
        public MainWindow ()
        {
            InitializeComponent();
            DataContext = new Model();
        }
    }
public class Model
{
    public string this [Other.Property prop] => prop.ToString() + " from Indexer";
}

}
namespace Other

{

public enum Property

{

Foo,

Bar,

}

}

Then all of the ways of applying to the indexer will work correctly:

<Window x:Class="HakunaMatata.MainWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local="clr-namespace:HakunaMatata"

xmlns:other="clr-namespace:Other">

<StackPanel>

<TextBlock Text="{Binding Path=[Foo]}"/>

<TextBlock Text="{Binding Path=[(other:Property)Foo]}"/>

<TextBlock Text="{Binding Path=.[Foo]}"/>

<TextBlock Text="{Binding Path=.[(other:Property)Foo]}"/>

</StackPanel>

</Window>