在 WPF DataGrid 中按下 Enter 键时将焦点移到下一个单元格?

问题描述

我想要一个可以的自定义 DataGrid，

I want to have a Custom DataGrid which can,

1. 如果处于编辑模式，则在按下 键时移动到下一个单元格.
2. 当到达当前行的最后一列时，焦点应移动到下一行的第一个单元格.
3. 到达下一个单元格时，如果该单元格是可编辑的，它应该自动变为可编辑.
4. 如果单元格包含 ComboBox 而不是组合框列，组合框应该 DropDownOpen.​​

1. Move to next cell when key is pressed also if it is in edit mode.
2. When the last column in the current row is reach, the focus should move to the first cell of next row.
3. On reaching to next cell, if the cell is editable, it should automatically became editable.
4. If the cell contains an ComboBox not comboboxcolumn, the combobox should DropDownOpen.

请帮我解决这个问题.过去几天我一直在尝试创建自定义 DataGrid 并在

Please help me in this. I have been trying from the past few day by creating a Custom DataGrid and wrote some code in

protected override void OnPreviewKeyDown(System.Windows.Input.KeyEventArgs e)

但我失败了.

推荐答案

private void dg_PreviewKeyDown(object sender, KeyEventArgs e)
{
    try
    {
        if (e.Key == Key.Enter)
        {
            e.Handled = true;
            var cell = GetCell(dgIssuance, dgIssuance.Items.Count - 1, 2);
            if (cell != null)
            {
                cell.IsSelected = true;
                cell.Focus();
                dg.BeginEdit();
            }
        }
    }
    catch (Exception ex)
    {
        MessageBox(ex.Message, "Error", MessageType.Error);
    }
}

public static DataGridCell GetCell(DataGrid dg, int row, int column)
{
    var rowContainer = GetRow(dg, row);

    if (rowContainer != null)
    {
        var presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer);
        if (presenter != null)
        {
            // try to get the cell but it may possibly be virtualized
            var cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
            if (cell == null)
            {
                // now try to bring into view and retreive the cell
                dg.ScrollIntoView(rowContainer, dg.Columns[column]);
                cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
            }
            return cell;
        }
    }
    return null;
}

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