Binding to a structure - wpf

Question

I am trying to bind a listview item to a member of a structure, but I am unable to get it to work.
The structure is quite simple:
public struct DeviceTypeInfo
{
public String deviceName;
public int deviceReferenceID;
};
in my view model I hold a list of these structures and I want to get the "deviceName" to be displayed in a list box.
public class DevicesListViewModel
{
public DevicesListViewModel( )
{
}
public void setListOfAvailableDevices(List<DeviceTypeInfo> devicesList)
{
m_availableDevices = devicesList;
}
public List<DeviceTypeInfo> Devices
{
get { return m_availableDevices; }
}
private List<DeviceTypeInfo> m_availableDevices;
}
I have tried the following but I can't get the binding to work, do I need to use relativesource?
<ListBox Name="DevicesListView" Grid.Column="0" VerticalAlignment="Bottom" HorizontalAlignment="Center" Margin="10" MinHeight="250" MinWidth="150" ItemsSource="{Binding Devices}" Width="Auto">
<ListBox.ItemTemplate>
<DataTemplate>
<StackPanel Orientation="Vertical">
<TextBlock Text="{Binding DeviceTypeInfo.deviceName}"/>
</StackPanel>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>

Answer 1

You need to make the members in the struct properties.
public struct DeviceTypeInfo
{
public String deviceName { get; set; }
public int deviceReferenceID { get; set; }
};
I ran into a similar situation yesterday :P
EDIT: Oh yeah, and like Jesse said, once you turn them into properties, you'll want to set up the INotifyPropertyChanged event.

Answer 2

Your TextBlock's DataContext is an object of type DeviceTypeInfo, so you only need to bind to deviceName, not DeviceTypeInfo.deviceName.
<DataTemplate>
<StackPanel Orientation="Vertical">
<TextBlock Text="{Binding deviceName}"/>
</StackPanel>
</DataTemplate>
In addition, you should be binding to Properties, not fields. You can change your fields to properties by adding { get; set; } to them like the other answer suggests

Answer 3

I think you need getters and setters. You also might need to implement INotifyPropertyChanged.
public class ViewModelBase : INotifyPropertyChanged
{
public event PropertyChangedEventHandler PropertyChanged;
public void OnPropertyChanged(string propertyName)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}