将 Datagrid 与 observable collection wpf 绑定

Question

我有一个包含多个列的 Datagrid，它有 itemsource={Binding} 并且在后面的代码中我将 DataContext 设置为一个 ObservableCollection

我的 customClass 具有标题、类型、语言、type1(CustomClass)、type2(CustomClass) 等属性

现在我的问题是，在一列类型中我有文本值说 'A' 或 'B' 现在如果值为 A 那么我的 customClass 的 object 将有一个 object type1 和 type2 设置为 null，如果类型具有值 'B'，则 type1 设置为 null 并且 type2 具有值。

现在在语言中我想以这种方式绑定如果类型有 A 然后取值 type1.someProperty 如果它有 B 然后取值 type2.someProperty.

这是我 xaml

中的内容

<DataGrid x:Name="dg_Content" Margin="0,60,-0.4,0" VerticalAlignment="Top" Height="505" ScrollViewer.CanContentScroll="True" ScrollViewer.VerticalScrollBarVisibility="Auto" ItemsSource="{Binding}" AutoGenerateColumns="False" ColumnWidth="*">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Title" Binding="{Binding _title}"/>
        <DataGridTextColumn x:Name="dgType" Header="Content Type" Binding="{Binding  _type}"/>
        <DataGridTextColumn Header="Language">
            <DataGridTextColumn.CellStyle>
                <Style TargetType="{x:Type DataGridCell}">
                    <Style.Triggers>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Binding="{Binding ElementName=dgType, Path=Content}" Value="A" />
                            </MultiTrigger.Conditions>
                            <Setter Property="Content" Value="{Binding type1.someProperty}" />
                        </MultiTrigger>
                    </Style.Triggers>
                </Style></DataGridTextColumn.CellStyle>
        </DataGridTextColumn>
        <DataGridTextColumn Header="Created At" Binding="{Binding _createdAt}"/>
        <DataGridTemplateColumn Header="Edit/View">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Button Content="Edit/View" Click="View_Click"></Button>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

有人能帮帮我吗？

Answer 1

如果有人需要的话，我是这样做的。

Xaml代码：

<DataGrid x:Name="DgContent" Margin="0,60,-0.4,0" VerticalAlignment="Top" Height="505" ScrollViewer.CanContentScroll="True" ScrollViewer.VerticalScrollBarVisibility="Auto" CanUserAddRows="False" ItemsSource="{Binding}" AutoGenerateColumns="False" ColumnWidth="*">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Title" Binding="{Binding Title}"/>
        <DataGridTextColumn Header="Content Type" Binding="{Binding  Type}"/>
        <DataGridTextColumn Header="Language">
            <DataGridTextColumn.Binding>
                <MultiBinding Converter="{StaticResource ResourceKey=Content}">
                    <Binding Path="{x:Static local:MainWindow.cl}"></Binding>
                </MultiBinding>
            </DataGridTextColumn.Binding>
        </DataGridTextColumn>
        <DataGridTextColumn Header="Created At" Binding="{Binding CreatedAt}"/>
        <DataGridTemplateColumn Header="Edit/View">
            <DataGridTemplateColumn.CellTemplate>
                <DataTemplate>
                    <Button Content="Edit/View" Click="View_Click"></Button>
                </DataTemplate>
            </DataGridTemplateColumn.CellTemplate>
        </DataGridTemplateColumn>
    </DataGrid.Columns>
</DataGrid>

后面的代码：

public object Convert(object[] values, Type targetType,
           object parameter, System.Globalization.CultureInfo culture)
{
    try
    {
        if (((Content)values[0]).Type == "movie")
        {
            return ((Content)values[0]).Movie.Language;
        }
        else
            return ((Content)values[0]).Video.Language;
    }
    catch (Exception e)
    { return "EXception"; }
}

public object[] ConvertBack(object value, Type[] targetTypes,
       object parameter, System.Globalization.CultureInfo culture)
{
    throw new NotSupportedException("Cannot convert back");
}

将 Datagrid 与 observable collection wpf 绑定

Binding Datagrid with observable collection wpf

c#

wpf

xaml

binding

datagrid