Binding to "object.GetType ()"?

Question

I have

ObservableCollection<object> 

Let's consider that we have 2 elements:

 int a = 1; string str = "hey!"; 

My xaml file is attached to it via a DataContext, and I would like to display the Type (System.Type) of the object with a binding. Here is the code I have

 <TextBlock Text="{Binding}"/> 

And I would like to display in my TextBlocks:

 int string 

Thanks for any help!

Answer 1

For this you will need an IValueConverter .

 [ValueConversion(typeof(object), typeof(string))] public class ObjectToTypeConverter : IValueConverter { public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { return value == null ? null : value.GetType().Name // or FullName, or whatever } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new InvalidOperationException(); } } 

Then add it to your resources ...

 <Window.Resources> <my:ObjectToTypeConverter x:Key="typeConverter" /> </Window.Resources> 

Then use it to snap

 <TextBlock Text="{Binding Mode=OneWay, Converter={StaticResource typeConverter}}" />