Question

我试图将列表绑定到ListBox但绝对没有任何反应。我没有得到任何错误，但我确定ListBox绑定到的列表已填充因为我有一个Text控件，显示信息显示集合中有三个项目。

所以问题是绑定到ListBox需要什么

<ListBox x:Name="lbSlaves" Width="300" Grid.Row="1"  ItemsSource="{Binding Slaves}" >
        <ListBox.ItemsPanel>
            <ItemsPanelTemplate>                    
                <StackPanel Width="150" Height="30"  Orientation="Horizontal" />
            </ItemsPanelTemplate>
        </ListBox.ItemsPanel>
        <ListBox.ItemTemplate>
            <DataTemplate>
                <TextBox Text="{Binding MachineName}"></TextBox>    <!-- Ive also tried Path=MachineName -->                   
            </DataTemplate>
        </ListBox.ItemTemplate>            
    </ListBox>

背后的代码

public List<ZTClient> Slaves { get; set; } 
     private void SetUpSlaves()
    {


        var client1 = new ZTClient()
        {
            MachineName = "Machine One",
            IpAdress = "34534512",
            Status = "Ready"
        };

        var client2 = new ZTClient()
        {
            MachineName = "Machine Two",
            IpAdress = "123456",
            Status = "Ready"
        };

        var client3 = new ZTClient()
        {
            MachineName = "Machine Three",
            IpAdress = "65464234",
            Status = "Ready"
        };

        AddClient(client1);
        AddClient(client2);
        AddClient(client3);

    //Ive also tried the following
    //lbSlaves.DataContext = Slaves;
        tbInfoBox.Text += "Nr of slaves = " + Slaves.Count() + Slaves[0].MachineName;

    }

    void SetInfoTex(string newText)
    {
        tbInfoBox.Text = newText;
    }

    private void AddClient(ZTClient newClient)
    {
        Slaves.Add(newClient);

    }

Answer 1

默认绑定绑定TextBox.Text的属性（TwoWay）。你的MachineName有公共制定者吗？如果没有将绑定模式更改为OneWay，或者更确切地说使setter更易于访问以防止绑定错误。

您也可以手动更新信息文本，但更改通知不支持ListBox绑定，因此它们可能无法同步。您应该绑定到ObservableCollection<ZTClient>，如果您想自己更改实例，那么ZTClient类应该实现INotifyPropertyChanged。

从后面的代码将列表绑定到ListBox

1 个答案: