中,我放了另一个DataGrid.现在我的第一个Datagrid有ItemsSource="{Binding MatchObsCollection}"和我的内部Datagrid,它在我的DataGrid.RowDetailsTemplate中具有单独的ItemSource。但内部数据网格并没有填充。我正在使用MVVM,并且我正在通过Viewmodel上的ObservableCollections绑定数据网格。任何人都可以帮助我(我的问题几乎与在 WPF DataGrid 中显示分层父子数据相同,但我在该帖子中也没有找到任何好的答案)。我的 xaml 代码附在下面。谢谢你,
<DataGrid HorizontalAlignment="Stretch" Margin="0" x:Name="dataGridParent" ItemsSource="{Binding MatchObsCollection}"
Style="{StaticResource EfesDataGridStyle}" FrozenColumnCount="14" GridLinesVisibility="All"
HorizontalGridLinesBrush="#DADADA" VerticalGridLinesBrush="#DADADA" Cursor="Hand" AutoGenerateColumns="False"
RowDetailsVisibilityMode="Visible"
util:ParentMatchDataGridRowClickHandler.MethodName="ParentMatchDatagrdRowClick"
SelectedItem="{Binding SelectedMatch}"
>
<DataGrid.Columns>
<DataGridTextColumn Header="Kod" Binding="{Binding MatchNo}" Width="50*" />
<DataGridTextColumn Header="Tarih" Binding="{Binding MatchDate}" Width="70*"/>
<DataGridTextColumn Header="Ev Sahibi" Binding="{Binding MatchHome}" Width="100*"/>
<DataGridTextColumn Header="Konuk" Binding="{Binding MatchVisitor}" Width="50*"/>
<DataGridTextColumn Header="1" Binding="{Binding MatchResultHomeOdds}" Width="30*" ></DataGridTextColumn>
<DataGridTextColumn Header="X" Binding="{Binding MatchResultDrawOdds}" Width="30*" />
<DataGridTextColumn Header="2" Binding="{Binding MatchResultVisitorOdds}" Width="30*"/>
<DataGridTextColumn Header="T1" Binding="{Binding MatchresultSingleHomeOdds}" Width="30*" />
<DataGridTextColumn Header="TX" Binding="{Binding MatchresultSingleDrawOdds}" Width="30*" />
<DataGridTextColumn Header="T2" Binding="{Binding MatchresultSingleVisitorOdds}" Width="30*" />
<DataGridTextColumn Header="+" CellStyle ="{StaticResource DataGridCellStyle}" Binding="{Binding TotalBets}" Width="30*"/>
<DataGridTextColumn Header="Min" Binding="{Binding MatchMin}" Width="30*" />
<DataGridTextColumn Header="Lig" Binding="{Binding TeamName}" Width="70*" />
<DataGridTemplateColumn Header="Durum" Width="Auto" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<ToggleButton x:Name="toggleBtn" VerticalAlignment="Center" Margin="0" Style="{StaticResource SlidingToggleButton}" BorderBrush="{x:Null}" IsChecked="{Binding ToggleBtn}" Background="#FF2F63FF" />
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
<DataGrid.RowDetailsTemplate x:Uid="test123">
<DataTemplate x:Name="testTemplete">
<DataGrid x:Name="innerGrid" ItemsSource="{Binding SubBetMatchDataListforChildGrid}"
Style="{StaticResource EfesDataGridStyle}" Margin="50,2,2,2" MinHeight="40"
GridLinesVisibility="All" HorizontalGridLinesBrush="#DADADA" VerticalGridLinesBrush="#DADADA"
Visibility="Collapsed" >
<DataGrid.Columns>
<DataGridTextColumn Header="Kod" Binding="{Binding Code}" Width="3*" />
<DataGridTextColumn Header="Alt Secenakler" Binding="{Binding SubOptions}" Width="7*" />
</DataGrid.Columns>
</DataGrid>
</DataTemplate>
</DataGrid.RowDetailsTemplate>
</DataGrid>
我正在使用 MVVM,并且我正在绑定数据网格 视图模型上的可观察集合。
您的视图模型中应该只有一个ObservableCollection
(MatchObsCollection
)。如果您在 ViewModel 中有MatchObsCollection
和SubBetMatchDataListforChildGrid
,则此代码不起作用。
RowDetails
的DataContext
是行项。
因此,如果要绑定到 ViewModel 中的ObservableCollection
,则应在 RowDetailsTemplate
中使用以下代码:
...
<DataGrid.RowDetailsTemplate x:Uid="test123">
<DataTemplate x:Name="testTemplete">
<DataGrid x:Name="innerGrid"
ItemsSource="{Binding Path=DataContext.SubBetMatchDataListforChildGrid, RelativeSource={RelativeSource Mode=FindAncestor, AncestorType={x:Type Window}}}"
...
如果要绑定到选定的对象内部ObservableCollection
则类应如下所示:
class Foo
{
public int MatchNo { get; set; }
public DateTime MatchDate { get; set; }
// more properties
public ObservableCollection<Boo> SubBetMatchDataListforChildGrid { get; set; }
}
class Boo
{
public string Code { get; set; }
public string SubOptions { get; set; }
}
在ViewModel中,你应该有Foo的ObservableCollection
:
class MainViewModel
{
public ObservableCollection<Foo> MatchObsCollection { get; set; }
}