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在 xaml 中，我有一个列表框，其中有一个 1 行和 2 列的网格。在第一列中我有一个名称，在第二列中我有另一个列表框...我将第一个列表框绑定到 Enclosure 项目的可观察集合。在 Enclosure 类中，我有另一个 observablecollection 服务器（另一个类）。我也在尝试将其绑定到列表框。当我将项目添加到可观察集合时，EnclosureID 正在正常工作和更新。但是，我不太确定如何让 Slist 绑定到我在另一个列表框中的列表框。有人有想法么？我可以使用另一种方法吗？

    public class Enclosure
    {
        private string enclosureID; //bound to the first listbox

        //I want to bind this below to the second listbox
        //There is another class called Server with various properties
        public ObservableCollection<Server> Slist = new ObservableCollection<Server>();

        public string EnclosureID
        {
            get { return enclosureID; }
            set { enclosureID = value; }
        }
    }

在xml中：

    <ListBox x:Name="lb1" ItemsSource="{Binding}" DataContext="{Binding}" ScrollViewer.HorizontalScrollBarVisibility="Disabled">

        <ListBox.ItemsPanel>
            <ItemsPanelTemplate>
                <WrapPanel/>
            </ItemsPanelTemplate>
        </ListBox.ItemsPanel>

        <ListBox.ItemTemplate>
            <DataTemplate>
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition/>
                    </Grid.RowDefinitions>

                    <Grid.ColumnDefinitions>
                        <ColumnDefinition/>
                        <ColumnDefinition/>
                    </Grid.ColumnDefinitions>

                    <TextBlock x:Name="txtEnclosure" Text="{Binding Path=EnclosureID}" Background="Aqua" Grid.Column="0" Grid.Row="0" />
                    <ListBox x:Name="lbserver" ItemsSource="{Binding Slist}"  ScrollViewer.HorizontalScrollBarVisibility="Disabled" Grid.Column="1" Grid.Row="0">
                        <ListBox.ItemsPanel>
                            <ItemsPanelTemplate>
                                <WrapPanel/>
                            </ItemsPanelTemplate>
                        </ListBox.ItemsPanel>

                        <ListBox.ItemTemplate>
                            <DataTemplate>
                                <TextBlock x:Name="txtServer" Text="{Binding Path=HostnameID}" Background="Beige"/>
                            </DataTemplate>
                        </ListBox.ItemTemplate>
                    </ListBox>
                </Grid>
            </DataTemplate>
        </ListBox.ItemTemplate>
    </ListBox>

要填充列表，我使用此方法：

            //Query the database for enclosures and populate the Enclosure observable collection in the Settings class
    public void GetEnclosures()
    {
        bool exception = false;
        Enclosure enclosure = new Enclosure();
        Server server = new Server();
        server.HostnameID = "HEY";

        OleDbCommand GetEnclosuresCommand = new OleDbCommand(Settings.GetEnclosuresQuery, Settings.conn);

        Settings.conn.Open();
        try
        {
            Settings.myReader = GetEnclosuresCommand.ExecuteReader();//begin reading
        }
        catch
        {
            MessageBox.Show("The Enclosure table is currently being used by another application. Please close the table and run this application again.");
            Settings.conn.Close();
            exception = true;
        }

        if (!exception)
        {
            // while there are enteries to retrieve
            while (Settings.myReader.Read())
            {
                enclosure.EnclosureID = Settings.myReader.GetString(0);
                enclosure.Slist.Add(server);
                Settings.Elist.Add(enclosure);
                enclosure = new Enclosure();
                server = new Server();
                server.HostnameID = "HI";
            }

            // Close when done reading.
            Settings.myReader.Close();

            // Close the connection.
            Settings.conn.Close();
        }
        else
        {
            this.NavigationService.Navigate(new Uri("MainPage.xaml", UriKind.Relative));
        }

    }
4

1 回答 1

0

可能是错的，但不是那么简单...

<ListBox 
  x:Name="lbserver" 
  ScrollViewer.HorizontalScrollBarVisibility="Disabled" 
  Grid.Column="1" 
  Grid.Row="0" 
  ItemsSource="{Binding Slist}">

也改变这个

public ObservableCollection<Server> Slist = new ObservableCollection<Server>();

说

public ObservableCollection<Server> Slist { get; set; }
//...
Slist = new ObservableCollection<Server>();
于 2012-06-17T17:58:04.597 回答