How to display JSON in WPF TreeView

Question

I am reading in JSON and then displaying it in a WPF treeview.

Here is the code...

Class MainWindow
Public Sub New()

    InitializeComponent()
    D         


        

Answer 1

The problem is that your XAML can only show a collections in dictionary's value and if there is a string, then it will be considered as collection of characters. One of the quick sollutions is to create a converter, which will transform your strings into string collections.

For this you need a value converter(sorry I do code in c#)

public class ValConv : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        if (value is string str)
        {
            return new List { str };
        }
        return value;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        return value;
    }
}

Instantiate this converter in resources:

and use it: