topic Databinding ComboBox to GraphicsCollection in ArcGIS Runtime SDK for WPF (Retired) Questions

Databinding ComboBox to GraphicsCollection

KeithGemeinhart — Thu, 08 Aug 2013 16:41:11 GMT

Greetings,

I'd like to bind a GraphicsCollection (which is a property in a view model) to a combo box in a XAML window. The problem is I can't figure out how to display attribute values in the combo box. I can get it to display the Geometry property like this:

<ComboBox DataContext="{StaticResource MyViewModel}"                 DisplayMemberPath="Geometry"                 ItemsSource="{Binding CollectionOfGraphics}"  />

But I want to be able to do something like this that will display the OBJECTID or some other attribute:

<ComboBox DataContext="{StaticResource MyViewModel}"                 DisplayMemberPath="Attributes[&quot;OBJECTID&quot;]"                 ItemsSource="{Binding CollectionOfGraphics}"  />

I also tried this approach - unsuccessfully:

<ComboBox DataContext="{StaticResource MyViewModel}"                 DisplayMemberPath="Attributes[0]"                 ItemsSource="{Binding CollectionOfGraphics}"  />

Re: Databinding ComboBox to GraphicsCollection

AnttiKajanus1 — Fri, 09 Aug 2013 08:28:56 GMT

Answered to http://gis.stackexchange.com/questions/68219/databinding-combobox-to-graphicscollection-esri-wpf-runtime.

Re: Databinding ComboBox to GraphicsCollection

KeithGemeinhart — Sat, 11 Dec 2021 10:13:30 GMT

Here is the solution based on Antti Kajanus's answer on stackexchange:

<ComboBox DataContext="{StaticResource MyViewModel}"
                ItemsSource="{Binding CollectionOfGraphics}" >
     <ComboBox.ItemTemplate>
          <DataTemplate>
              <TextBlock Text="{Binding Attributes[OBJECTID]}"/>
          </DataTemplate>
     </ComboBox.ItemTemplate>
</ComboBox>

Note that the attributite name (OBJECTID) did not have to be quoted.