Question

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

我的customClass具有标题，类型，语言，类型1（CustomClass），type2（CustomClass）等属性

现在我的问题是在一个列类型中我有文字值说'A＆＃39;或者＆＃39; B＆＃39;现在，如果值为A，那么我的customClass的对象将具有type1的对象，并且type2被设置为null，并且如果type具有值＆＃39; B＆＃39;然后将type1设置为null，type2具有值。

现在用语言我希望以这种方式绑定如果type有A然后取值type1.someProperty如果它有B然后取值type2.someProperty。

这是我在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>

有人可以帮助我吗？

Answer 1

如果有人需要，我就是这样做的。

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>

代码背后：

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与可观察集合wpf绑定

1 个答案: