Question

我想将内部ObservableCollection绑定到CollectionViewSource以对其应用过滤器。但不幸的是，我在第一步失败了。我无法将我的集合绑定到collectionViewSource作为新资源。我将以下代码替换为正常工作：

    <DataGridTemplateColumn x:Key="MyComboBoxFunctionColumn" Header="Function">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                  <ComboBox ItemsSource="{Binding Mux.Setting.FunctionList}" DisplayMemberPath="Name" SelectedIndex="{Binding Mux.Setting.Id, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" IsEnabled="{Binding Mux.Applicable}" IsReadOnly="True" />                        
            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>

我的模板用于以下数据网格：

   <DataGrid x:Name="pinTable" Grid.Row="2" ItemsSource="{Binding PortMux.Pins, Mode=TwoWay}" AutoGenerateColumns="False" CanUserAddRows="False" SelectionMode="Single" SelectionUnit="Cell" Grid.ColumnSpan="28">
        <DataGrid.Columns>
            <DataGridCheckBoxColumn Header="Selection"  Binding="{Binding isSelected, Mode=TwoWay}" Width="Auto"   Visibility="Hidden" />
            <DataGridTextColumn Header="Name" Binding="{Binding Name, Mode=TwoWay}" Width="Auto" IsReadOnly="True"/>
            <StaticResource ResourceKey="MyComboBoxFunctionColumn"/>

在相应的xaml类的cs文件后面的代码中我执行以下操作

       public PortMux PortMux
    {
        get { return (PortMux)GetValue(PortMuxProperty); }
        set { SetValue(PortMuxProperty, value); }
    }

    public static readonly DependencyProperty PortMuxProperty =
        DependencyProperty.Register("PortMux", typeof(PortMux), typeof(MainWindow), new UIPropertyMetadata(null));...
public partial class MainWindow : Window
{...
       PortMux = new PortMux();
        ...

        PortMux = projectRef;
        ..
        base.DataContext = this;
        InitializeComponent();

...

使用新的集合类，但现在我的组合框项目是空的，但我不知道为什么？

<CollectionViewSource x:Key="src" Source="{Binding Path=Mux.Setting.FunctionList}" >

    <DataGridTemplateColumn x:Key="MyComboBoxFunctionColumn" Header="Function">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <ComboBox ItemsSource="{Binding Source={StaticResource src}}"  DisplayMemberPath="Name" SelectedIndex="{Binding Mux.Setting.Id, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" IsEnabled="{Binding Mux.Applicable}" IsReadOnly="True" />

            </DataTemplate>
        </DataGridTemplateColumn.CellTemplate>
    </DataGridTemplateColumn>
enter code here

欢迎任何解决我问题的建议!!

提前谢谢!!

将CollectionViewSource绑定到内部类

0 个答案: