WPF Datagrid主细节MVVM

时间:2013-12-04 23:05:19

标签: c# wpf xaml mvvm datagrid

我有一个WPF应用程序。我有两个数据网格,一个包含指标列表和另一个数据网格,我想要显示顶部数据网格的选定指标的更多详细信息。

但是我的细节网格没有显示任何数据,我无法弄清楚原因。我应该指出主数据网格填充正常。我在属性IndicatorSelected的setter中放了一个中断,并且可以看到当选择一个项目时它被调用&看到数据是正确的,但是没有在详细数据网格中显示。

XAML

<DataGrid x:Name="dgModels" Grid.Column="0" 
                      ItemsSource="{Binding Path=IndicatorList}"
                      SelectedItem="{Binding Path=IndicatorSelected}"
                      AutoGenerateColumns="false">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Model" Binding="{Binding Name}" IsReadOnly="True"/>
        <DataGridCheckBoxColumn Header="Run" Binding="{Binding Run}" IsReadOnly="false"/>
    </DataGrid.Columns>                                            
</DataGrid>

<DataGrid x:Name="dgParameterInfo" Grid.Column="1"
          ItemsSource="{Binding Path=IndicatorSelected}"
          AutoGenerateColumns="false">
    <DataGrid.Columns>
        <DataGridTextColumn Header="Parameter Name" Binding="{Binding Path=Name}" IsReadOnly="True"/>
        <DataGridTextColumn Header="Default Value" Binding="{Binding Path=DefaultValue}" IsReadOnly="True"/>
        <DataGridTextColumn Header="Run Value" Binding="{Binding Path=RunValue}" IsReadOnly="True"/>
        <DataGridTextColumn Header="Parameter Type" Binding="{Binding Path=ParaType}" IsReadOnly="True"/>
    </DataGrid.Columns>                    
</DataGrid>    

C#

class ViewModel : INotifyPropertyChanged
{
    List<IndicatorWrapper> _indicatorList;
    IndicatorWrapper _indicatorWrapper; 

    public List<IndicatorWrapper> IndicatorList
    {
        get { return _indicatorList; }
        set 
        { 
            _indicatorList = value;
            OnPropertyChanged("IndicatorList");
        }
    }
    public IndicatorWrapper IndicatorSelected
    {
        get { return _indicatorWrapper; }
        set
        {
            _indicatorWrapper = value;
            OnPropertyChanged("IndicatorWrapper");
        }
    }

    public ViewModel()
    {
        DatabaseRetrieveSimulator db = new DatabaseRetrieveSimulator();
        IndicatorList = db.GetIndicators();
    }
}

1 个答案:

答案 0 :(得分:1)

在你的IndicatorSelected setter中,你用IndicatorWrapper调用OnPropertyChanged ......它应该是IndicatorSelected:)