Question

使用Prism框架实现WPF MVVM解决方案。

我想使用DataGrid或GridView显示表格数据。然后当单击一个单元格时，它应该触发一个Command，并作为CommandParameter，即ColumnHeader的标题。（仅适用于Debit＆amp; Credit列，如下面的代码所示。代码最终将执行的操作是单击Debit字段时，Amount将复制到该字段。如果随后单击Credit字段，Debit字段将为清除并将值复制到Credit字段中

尝试使用DataGrid，并且只设法将所选记录传递回ViewModel。使用GridView，只能管理将命令附加到GridViewColumn标题。

任何帮助将不胜感激。

目前，这就是我的代码：

视图模型：

public AccountingViewModel(IAccountingView view, IRegionManager manager, IEventAggregator eventAggregator)
        :base(view, manager, eventAggregator)
{            
        AccountingEntries = new ObservableCollection<AccountingModel>();
        FieldClickedCommand = new DelegateCommand<string>(OnClicked);
}

private void OnClicked(string column)
{
    //Update corresponding field in record clicked cell
}

private AccountingModel _selectedAccount;
public AccountingModel SelectedAccount
{
    get { return _selectedAccount; }
    set
    {
        _selectedAccount = value;
        OnPropertyChanged("SelectedAccount");
    }
}

private ObservableCollection<AccountingModel> _accountingEntries;
public ObservableCollection<AccountingModel> AccountingEntries
{
    get { return _accountingEntries; }
    set
    {
        _accountingEntries = value;
        OnPropertyChanged("AccountingEntries");
    }
}

查看：

<Grid x:Name="AccountingViewModelLevel">

    <DataGrid Grid.Row="1"
              ItemsSource="{Binding AccountingEntries}"
              SelectedItem="{Binding SelectedAccount}"
              AutoGenerateColumns="False"
              CanUserAddRows="False"     
              CanUserDeleteRows="False"
              CanUserResizeColumns="False"
              CanUserReorderColumns="False"                  
              ScrollViewer.CanContentScroll="True"
              ScrollViewer.VerticalScrollBarVisibility="Auto"                  
              SelectionMode="Single"
              x:Name="AccountEntryDataGrid">

        <DataGrid.InputBindings>
            <MouseBinding Gesture="LeftDoubleClick" 
                          Command="{Binding FieldClickedCommand}" 
                          CommandParameter="{Binding ElementName=AccountEntryDataGrid, Path=SelectedItem}" />
        </DataGrid.InputBindings>

        <DataGrid.Columns>
            <DataGridTextColumn Binding="{Binding ID}" Header="No."/>
            <DataGridTextColumn Binding="{Binding AccountName}" Header="Account Name"/>
            <DataGridTextColumn Binding="{Binding Amount, StringFormat=0.00;;#}" 
                                Header="Amount"
                                Width="90" />

            <DataGridTextColumn Binding="{Binding Debit, StringFormat=0.00;;#}"
                Header="Debit"
                Width="90"
                CellStyle="{StaticResource TrialBalanceStyle}"
                >
            </DataGridTextColumn>
            <DataGridTextColumn Binding="{Binding Credit, StringFormat=0.00;;#}"
                Header="Credit"
                Width="90"
                CellStyle="{StaticResource TrialBalanceStyle}"
                IsReadOnly="True"/>            
        </DataGrid.Columns>
    </DataGrid>
</Grid>

WPF MVVM - DataGrid单元格单击，获取列标题

0 个答案: