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我有DataGrid几个可编辑的单元格。用户可以通过每个单元格来编辑内容。现在我想实现像标签一样工作的右箭头键。因此,当用户完成编辑一个单元格并按下右箭头键时,焦点将移动到下一个可编辑单元格并开始编辑。

例如,我有以下屏幕:

当用户按下右箭头键时,我希望我的数据网格是这样的:

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4 回答 4

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DataGrid 实际上自动处理右、左、上、下箭头键。话虽如此,您可以使用这些键中的任何一个来移动单元格焦点,然后开始输入以进入编辑模式(如果单元格是可编辑的)。您不必听按键按下事件。请注意,如果您按“Enter”,那么您将移动到下一行。

编辑:

当然,默认情况下,箭头键不会将单元格置于编辑模式。相反,您必须输入内容或使用鼠标指针。但是,您可以执行以下操作:

    private void myDataGrid_CurrentCellChanged(object sender, EventArgs e)
    {
        myDataGrid.BeginEdit();
    }

这将强制焦点上的单元格进入编辑模式。我尝试使用键事件处理程序,但似乎 DataGrid 不会让用户听箭头键和 Enter(尽管如果您使用 WIN32 API 可以)。现在,每当您使用任何箭头键时,新选择的单元格都将处于编辑模式。尝试按 Esc 退出此模式。

于 2011-01-05T03:16:27.750 回答
0

如果您的案例是 WPF托管窗口,则称为无模式 WPF

解决方案可能是这样的:

Window window = new Window();
System.Windows.Forms.Integration.ElementHost.EnableModelessKeyboardInterop(window);
window.Show();

我在这里看到了解决方案

于 2013-07-10T09:27:59.217 回答
0

这是我使用箭头键进行导航的代码

它放置在 Datagrid_KeyUp 事件中

    DataGridCell DGcell = new DataGridCell();
    DGcell = GetCell(index, _Header);
    if (DGcell != null)
    {
         CurrentCellContentType = DGcell.Content.GetType().Name.ToString();
    }
    DataGridCell ProdCodeCell = GetCell(index, 0);
    DataGridCell DescCell = GetCell(index, 1);
    DataGridCell CostPriceCell = GetCell(index, 4);
    DataGridCell VatRateCell = GetCell(index, 9);

    DataGridCellInfo PCell = new DataGridCellInfo(ProdCodeCell);
    DataGridCellInfo DCell = new DataGridCellInfo(DescCell);
    DataGridCellInfo PriceCell = new DataGridCellInfo(CostPriceCell);
    DataGridCellInfo VatCell = new DataGridCellInfo(VatRateCell);

    string ProdCellContentType = PCell.Column.GetCellContent(PCell.Item).GetType().Name.ToString();
    string DescCellContentType = DCell.Column.GetCellContent(DCell.Item).GetType().Name.ToString();
    string PriceCellContentType = PriceCell.Column.GetCellContent(PriceCell.Item).GetType().Name.ToString();
    string VatCellContentType = VatCell.Column.GetCellContent(VatCell.Item).GetType().Name.ToString();

    switch (e.Key)
    {
    case Key.Left:
        if (CurrentCellContentType == "TextBlock") e.Handled = false;
        else if (CurrentCellContentType == "TextBox")
        {
            DataGridCellInfo cellLeft = new DataGridCellInfo(GetCell(index, _Header - 1));
            DgInvoiceLines.CurrentCell = cellLeft;
        }
        break;
    case Key.Right:
        if (CurrentCellContentType == "TextBlock") else e.Handled = false;

        else if (CurrentCellContentType == "TextBox")
        {
            DataGridCellInfo cellRight = new DataGridCellInfo(GetCell(index, _Header + 1));
            DgInvoiceLines.CurrentCell = cellRight;
        }
        break;
    case Key.Up:
        if (index != 0)
        {
            if (CurrentCellContentType == "TextBlock") e.Handled = false;
            else if (CurrentCellContentType == "TextBox")
            {
                DataGridCellInfo cellUp = new DataGridCellInfo(GetCell(index - 1, _Header));
                DgInvoiceLines.CurrentCell = cellUp;
                DgInvoiceLines.SelectedItem = DgInvoiceLines.Items[index - 1];
            }
        }
        break;

    case Key.Down:
        if (CurrentCellContentType == "TextBlock") e.Handled = false;
        else if (CurrentCellContentType == "TextBox")
        {
            DataGridCellInfo cellDown = new DataGridCellInfo(GetCell(index + 1, _Header));
            DgInvoiceLines.CurrentCell = cellDown;
            DgInvoiceLines.SelectedItem = DgInvoiceLines.Items[index + 1];
        }
        break;

我使用 switch 语句为每个列标题分配一个数字

HTH。

于 2011-09-30T16:07:02.440 回答
0

这是我的解决方案,它有效。

在构造函数中:

dataGridSubmissionData.KeyUp += DataGridSubmissionDataOnKeyUp;
            dataGridSubmissionData.BeginningEdit += DataGridSubmissionDataOnBeginningEdit;
            dataGridSubmissionData.CellEditEnding += DataGridSubmissionDataOnCellEditEnding;
            dataGridSubmissionData.CurrentCellChanged += DataGridSubmissionDataOnCurrentCellChanged;

在正文类中:

private bool isCellInEditionMode = false;

 private void DataGridSubmissionDataOnCurrentCellChanged(object sender, EventArgs eventArgs)
        {
            dataGridSubmissionData.BeginEdit();
        }

        private void DataGridSubmissionDataOnCellEditEnding(object sender, DataGridCellEditEndingEventArgs dataGridCellEditEndingEventArgs)
        {
            isCellInEditionMode = false;
        }

        private void DataGridSubmissionDataOnBeginningEdit(object sender, DataGridBeginningEditEventArgs dataGridBeginningEditEventArgs)
        {
            isCellInEditionMode = true;
        }

private void DataGridSubmissionDataOnKeyUp(object sender, KeyEventArgs keyEventArgs)
        {
            if (keyEventArgs.Key == Key.Up || keyEventArgs.Key == Key.Down || keyEventArgs.Key == Key.Left || keyEventArgs.Key == Key.Right)
            {
                if (!isCellInEditionMode)
                    return;

                dataGridSubmissionData.CommitEdit();

                var key = keyEventArgs.Key; // Key to send
                var target = dataGridSubmissionData; // Target element
                var routedEvent = Keyboard.KeyDownEvent; // Event to send

                target.RaiseEvent(
                    new KeyEventArgs(
                        Keyboard.PrimaryDevice,
                        PresentationSource.FromVisual(target),
                        0,
                        key) {RoutedEvent = routedEvent}
                    );
            }
        }

我希望我的回答对某人有所帮助。

于 2012-05-28T16:27:06.240 回答