如何将WPF网格单元格复制到同一网格中的其他单元格

<Grid x:Name="myGrid">
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>

    <TextBlock Grid.Row="0" Grid.Column="0" Text="Cell 1"/>
    <TextBlock Grid.Row="0" Grid.Column="1" Text="Cell 2"/>
    <TextBlock Grid.Row="1" Grid.Column="0" Text="Cell 3"/>
    <TextBlock Grid.Row="1" Grid.Column="1" Text="Cell 4"/>
</Grid>

public static class CustomCommands
{
    public static readonly RoutedUICommand CopyCell = new RoutedUICommand(
        "Copy Cell",
        "CopyCell",
        typeof(CustomCommands),
        new InputGestureCollection()
        {
            new KeyGesture(Key.C, ModifierKeys.Control)
        }
    );
}

public MainWindow()
{
    InitializeComponent();

    CommandBinding copyCellBinding = new CommandBinding(
        CustomCommands.CopyCell,
        CopyCell_Executed,
        CopyCell_CanExecute
    );

    CommandBindings.Add(copyCellBinding);
}

private void CopyCell_Executed(object sender, ExecutedRoutedEventArgs e)
{
    TextBlock selectedCell = e.OriginalSource as TextBlock;

    if (selectedCell != null)
    {
        // 获取选中单元格的行和列索引
        int row = Grid.GetRow(selectedCell);
        int column = Grid.GetColumn(selectedCell);

        // 复制选中单元格的内容
        string cellContent = selectedCell.Text;

        // 将内容复制到其他单元格
        foreach (UIElement element in myGrid.Children)
        {
            TextBlock cell = element as TextBlock;

            if (cell != null && cell != selectedCell)
            {
                int cellRow = Grid.GetRow(cell);
                int cellColumn = Grid.GetColumn(cell);

                if (cellRow == row && cellColumn == column)
                {
                    cell.Text = cellContent;
                }
            }
        }
    }
}

private void CopyCell_CanExecute(object sender, CanExecuteRoutedEventArgs e)
{
    e.CanExecute = e.OriginalSource is TextBlock;
}

<Grid x:Name="myGrid">
    <Grid.RowDefinitions>
        <RowDefinition/>
        <RowDefinition/>
    </Grid.RowDefinitions>
    <Grid.ColumnDefinitions>
        <ColumnDefinition/>
        <ColumnDefinition/>
    </Grid.ColumnDefinitions>

    <TextBlock Grid.Row="0" Grid.Column="0" Text="Cell 1">
        <TextBlock.InputBindings>
            <KeyBinding Key="C" Modifiers="Control" Command="local:CustomCommands.CopyCell"/>
        </TextBlock.InputBindings>
    </TextBlock>
    <TextBlock Grid.Row="0" Grid.Column="1" Text="Cell 2">
        <TextBlock.InputBindings>
            <KeyBinding Key="C" Modifiers="Control" Command="local:CustomCommands.CopyCell"/>
        </TextBlock.InputBindings>
    </TextBlock>
    <TextBlock Grid.Row="1" Grid.Column="0" Text="Cell 3">
        <TextBlock.InputBindings>
            <KeyBinding Key="C" Modifiers="Control" Command="local:CustomCommands.CopyCell"/>
        </TextBlock.InputBindings>
    </TextBlock>
    <TextBlock Grid.Row="1" Grid.Column="1" Text="Cell 4">
        <TextBlock.InputBindings>
            <KeyBinding Key="C" Modifiers="Control" Command="local:CustomCommands.CopyCell"/>
        </TextBlock.InputBindings>
    </TextBlock>
</Grid>