Question

我正在尝试将Observablecollection绑定到WPF项目中的listView。我创建了这样的集合：

    private ObservableCollection<Message> list = new ObservableCollection<Message>();

    public ObservableCollection<Message> List
    {
        get { return this.list; }
        set { this.list = value; }
    }

    public MainWindow()
    {
        InitializeComponent();

        //Sample messages
        List.Add(new Message("email1@gmail.com", "copy 1", "Subject 1", "BodyText 1", "john.doe@gmail.com", "27.11.2013"));
        List.Add(new Message("email2@gmail.com", "copy 2", "Subject 2", "BodyText 2", "john.doe@gmail.com", "27.11.2013"));
        List.Add(new Message("email3@gmail.com", "copy 3", "Subject 3", "BodyText 3", "john.doe@gmail.com", "27.11.2013"));
        List.Add(new Message("email4@gmail.com", "copy 4", "Subject 4", "BodyText 4", "john.doe@gmail.com", "27.11.2013"));
        List.Add(new Message("email5@gmail.com", "copy 5", "Subject 5", "BodyText 5", "john.doe@gmail.com", "27.11.2013"));

        this.DataContext = this;
    }

该课程如下：

public class Message
{
    private string receiver;
    private string copy;
    private string subject;
    private string bodyText;
    private string sender;
    private string date;

    public Message(string receiver,
                     string copy,
                     string subject,
                     string bodyText,
                     string sender,
                     string date)
    {
        receiver = this.receiver;
        copy = this.copy;
        subject = this.subject;
        bodyText = this.bodyText;
        sender = this.sender;
        date = this.date;
    }

    public string Receiver
    {
        get { return this.receiver; }
        set { this.receiver = value; }
    }
    public string Copy
    {
        get { return this.copy; }
        set { this.copy = value; }
    }
    public string Subject
    {
        get { return this.subject; }
        set { this.subject = value; }
    }
    public string BodyText
    {
        get { return this.bodyText; }
        set { this.bodyText = value; }
    }
    public string Posiljatelj
    {
        get { return this.sender; }
        set { this.sender = value; }
    }
    public string Date
    {
        get { return this.date; }
        set { this.date = value; }
    }
}

XAML部分：

       <ListView x:Name="listLstView" ItemsSource="{Binding Path=List}" HorizontalAlignment="Left" Height="316" Margin="232,42,0,0" VerticalAlignment="Top" Width="734">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Subject" Width="250" DisplayMemberBinding="{Binding Path=Subject}"/>
                    <GridViewColumn Header="Sender" Width="250" DisplayMemberBinding="{Binding Path=Sender}"/>
                    <GridViewColumn Header="Date" Width="230" DisplayMemberBinding="{Binding Path=Date}"/>
                </GridView>
            </ListView.View>
        </ListView>

当我将鼠标指针放在ListView区域时，有5行（至少它们在悬停时会改变颜色），但没有数据或任何类型的文本。我哪里出错？

Answer 1

首先，我不相信Path是必要的，因为您已经定义了ItemsSource。

其次，你的构造函数应该是：

this.receiver = receiver;
this.copy = copy;
this.subject = subject;
this.bodyText = bodyText;
this.sender = sender;
this.date = date;

你有this.在等号的错误一侧。

最后，确保您的属性命名正确，我在Message类中看到Sender名称错误。

public string Posiljatelj // <- that should be named Sender
    {
        get { return this.sender; }
        set { this.sender = value; }
    }

您的xaml中有一列绑定到Sender，但您的Message类中没有Sender。

将ObservableCollection绑定到listView - 存在行，但没有内容

1 个答案: