XAML ListBox仅显示类名称

Question

How do I get my class properties to show up in the ListBox?

XAML:

<ListBox x:Name="lstPlayers" >
     <DataTemplate>
          <StackPanel Orientation="Horizontal">
              <TextBlock Text="{Binding Player.FirstName}"></TextBlock>
              <TextBlock Text="{Binding Player.LastName}"></TextBlock>
          </StackPanel>
     </DataTemplate>
</ListBox>

C#:

public class Player
{
    string FirstName { get; set; }
    string LastName { get; set; }
}


public void LoadPlayers()
{
    foreach (Player player in Players)
    {
         lstPlayers.Items.Add(player);
     }
}

The only thing that shows up in the ListBox is

TestApplication1.Player

Answer 1

You have some problems with you current implementation. First, the DataTemplate should be placed inside the ItemTemplate for the ListBox . Second, the DataContext for each ListBoxItem will be an instance of Player so you should bind directly to FirstName and LastName . Third, the properties in Player should be made public for the DataBinding to work.

<ListBox x:Name="lstPlayers" >
    <ListBox.ItemTemplate>
        <DataTemplate>
            <StackPanel Orientation="Horizontal">
                <TextBlock Text="{Binding FirstName}"></TextBlock>
                <TextBlock Text="{Binding LastName}"></TextBlock>
            </StackPanel>
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

public class Player
{
    public string FirstName { get; set; }
    public string LastName { get; set; }
}

Also, instead of adding the collection item by item to the ListBox , just set it as ItemsSource

lstPlayers.ItemsSource = Players;

Answer 2

DataTemplate应该在ListBox.ItemTemplate内部。

Answer 3

set the collection, Players as ItemSource

and

<ListBox x:Name="lstPlayers" >
        <ListBox.ItemTemplate>
            <DataTemplate>
                <StackPanel Orientation="Horizontal">
                    <TextBlock Text="{Binding FirstName}"></TextBlock>
                    <TextBlock Text="{Binding LastName}"></TextBlock>
                </StackPanel>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

Answer 4

you have to add the DataType to your DataTemplate.

<DataTemplate DataType="{x:Type local:Player}">
        <StackPanel Orientation="Horizontal">
            <TextBlock Text="{Binding FirstName}"></TextBlock>
            <TextBlock Text="{Binding LastName}"></TextBlock>
        </StackPanel>
    </DataTemplate>

local is the namespace for your TestApplication1.Player. you can set the datatemplate to the listebox.itemtemplate or as a resource of any "parent object"