Question

I’m trying to bind a combobox to a ObservableCollection.When the form is displayed the combobox is empty.The same code with ObservableCollection of type string works perfectly. I’ve got a feeling that my XPath is wrong. Any suggestions are welcome:

XAML:

<ComboBox ItemsSource="{Binding ItemParameters, XPath=InnerXml/name,Mode=TwoWay}" SelectedIndex="0" Margin="2" VerticalAlignment="Top" HorizontalContentAlignment="Stretch" Grid.Row="1" Grid.Column="1" Height="24"  />

ObservableCollection XmlNode :

public ObservableCollection<XmlNode> _itemParameters = new ObservableCollection<XmlNode>();
public ObservableCollection<XmlNode> ItemParameters
{
    get { return _itemParameters; }
    set { _itemParameters = value; }
}

The combobox should display the name attribute of each XmlNode in the collection:

Update:

I’ve tried using DisplayMemberPath in two different ways, but the combobox still contains no data:

DisplayMemberPath="{Binding XPath=name}" ItemsSource="{Binding ItemParameters}"
DisplayMemberPath="{Binding XPath=InnerXml/name}" ItemsSource="{Binding ItemParameters}"

Solution:

This did the trick, hope it helps someone else as well:

<ComboBox DisplayMemberPath="@name" ItemsSource="{Binding ItemParameters}"

Answer 1

First of all you are setting Path and XPath at the same time, which are conficting properties, secondly you bind the ItemsSource, which has nothing to do with what you want to show inside the item. Either use DisplayMemberPath or an ItemTemplate for that, the ItemsSource should just be bound to ItemParameters.