Question

I’m trying to do the following.
I have a class:

public class TextField {
    public string TextType { get; set; }
}

in my View I created a list:

public TextFieldEditControl()
    {
        InitializeComponent();

        Dictionary<string, string> lst = new Dictionary<string, string>();
        lst.Add("SingleLine", "Single line");
        lst.Add("MultiLine", "Multi-line");
        lst.Add("RichText", "Rich text");
        cmbTextType.ItemsSource = lst;
    }

in my XAML i have:

<ComboBox x:Name="cmbTextType" DisplayMemberPath="Value" SelectionChanged="cmbTextType_SelectionChanged" 
            SelectedItem="{Binding Path=TextType, Mode=TwoWay}" />

The problem is that when I check the value of the TextType property, it returns a string like that: “[SingleLine, Single line]” instead of just the Key. Where can I set it to return only the key for a Key/Value Pair?

Answer 1

In your title you specified Silverlight 3, which unfortunately didn’t have the SelectedValue and SelectedValuePath properties that Anthony mentions. This means that you need to do a nasty workaround to get it to work. I discuss it here in this Silverlight 2 era article of mine, in a section titled “The ComboBox Nightmare”: http://www.silverlightshow.net/items/Building-a-Silverlight-Line-Of-Business-Application-Part-5.aspx. It was a pain in Silverlight 2, and wasn’t fixed until Silverlight 4.

Hope this helps…

Chris