Binding data to ComboBox WPF

Question

I am newbie to WPF, and needs help to bind data into the ComboBox. The xaml file contains the tag below.

Answer 1

Instead of DataContext={Binding} you should have ItemsSource={Binding}.

The data context for any frameworkelement in the visual tree is by default {Binding}.

 <ComboBox Name="_currentInbox"
      SelectedItem="Hoved"
      Width="180"
      Margin="5"
      Height="22"
      DisplayMemberPath="Name"
      ItemSource="{Binding}" /> 

Also for the combobox to display text of the items correctly I suppose you need DisplayMemberPath too. I assumed the property from Inbox class that you need to display is Name. Please replace with your relevant property name.

Answer 2

If your Inbox class is like,

public class Inbox
{
    public int ID { get; set; }
    public string Text { get; set; }
}

And if you do not want to change your xmal, the code behind method should be like this,

public void FillInboxes(List<Inbox> inboxes) 
    {
        _currentInbox.DisplayMemberPath = "Text"; // To display the 'Text' property in the combobox dropdown
        //_currentInbox.DisplayMemberPath = "ID"; // To display the 'ID' property in the combobox dropdown
        _currentInbox.DataContext = inboxes; 
    }

Answer 3

I assume your Inbox class consists of two properties (for simplicity), but there may be any number of them:

public class Inbox
{
    public int ID { get; set; }
    public string Text { get; set; }
}

You write a DataTemplate, for example:

<Grid.Resources>
    <DataTemplate x:Key="InboxTemplate">
        <WrapPanel>
            <TextBlock Text="{Binding Path=ID}"/>
            <TextBlock>:</TextBlock>
            <TextBlock Text="{Binding Path=Text}"/>
        </WrapPanel>
    </DataTemplate>
</Grid.Resources>

Then correct your ComboBox declaration like:

<ComboBox Name="_currentInbox" Width="180"  Margin="5" Height="22" ItemsSource="{Binding}" ItemTemplate="{StaticResource InboxTemplate}" />

Finally you set DataContext of your ComboBox to your List<Inbox>:

public void FillInboxes(List<Inbox> inboxes)
{
   _currentInbox.DataContext = inboxes;
}

EDIT: As you've asked for a simpler solution, you can just override ToString() method of your Inbox class:

protected override string ToString()
{
    return ID.ToString() + ":" + Text;
}