wpf datagrid 如何按回车跳到下一格，而不是下一行

Question

真奇怪。。回车就是不响应keydown事件！

Answer 1

发现keyup事件能够捕捉entry键。。但是不知道如何获取entry键所在的单元格！

Answer 2

if (e.Key == Key.Enter)
            {
                Int32 row= dataGrid1.Items.IndexOf(dataGrid1.CurrentItem);
                Int32 Col = dataGrid1.Columns.IndexOf(dataGrid1.CurrentColumn);
            }

Answer 3

谢谢，此代码不错。。有个问题是：wpf datagrid 不能捕获entry键。。请问有方法解决吗？

Answer 4

 private void dataGrid1_PreviewKeyDown(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Enter)
            {
                Int32 row = dataGrid1.Items.IndexOf(dataGrid1.CurrentItem);
                Int32 Col = dataGrid1.Columns.IndexOf(dataGrid1.CurrentColumn);
                //dataGrid1.SelectedItem = dataGrid1.Columns[Col+1]
            }
        }

Answer 5

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Media;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;namespace WpfApplication1
{
    public static class DataGridHelper
    {
        /// <summary>         
        /// Gets the visual child of an element         
        /// </summary>         
        /// <typeparam name="T">Expected type</typeparam>         
        /// <param name="parent">The parent of the expected element</param>         
        /// <returns>A visual child</returns>         
        public static T GetVisualChild<T>(Visual parent) where T : Visual
        {
            T child = default(T);
            int numVisuals = VisualTreeHelper.GetChildrenCount(parent);
            for (int i = 0; i < numVisuals; i++)
            {
                Visual v = (Visual)VisualTreeHelper.GetChild(parent, i);
                child = v as T;
                if (child == null)
                {
                    child = GetVisualChild<T>(v);
                }
                if (child != null)
                {
                    break;
                }
            }
            return child;
        }        /// <summary>
        /// Gets the specified cell of the DataGrid
        /// </summary>
        /// <param name="grid">The DataGrid instance</param>
        /// <param name="row">The row of the cell</param>
        /// <param name="column">The column index of the cell</param>
        /// <returns>A cell of the DataGrid</returns>
        public static DataGridCell GetCell(this DataGrid grid, DataGridRow row, int column)
        {
            if (row != null)
            {
                DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(row);
                if (presenter == null)
                {
                    grid.ScrollIntoView(row, grid.Columns[column]);
                    presenter = GetVisualChild<DataGridCellsPresenter>(row);
                }
                DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column);
                return cell;
            }
            return null;
        }
        /// <summary>
        /// Gets the specified cell of the DataGrid
        /// </summary>
        /// <param name="grid">The DataGrid instance</param>
        /// <param name="row">The row index of the cell</param>
        /// <param name="column">The column index of the cell</param>
        /// <returns>A cell of the DataGrid</returns>
        public static DataGridCell GetCell(this DataGrid grid, int row, int column)
        {
            DataGridRow rowContainer = grid.GetRow(row);
            return grid.GetCell(rowContainer, column);
        }
        /// <summary>
        /// Gets the specified row of the DataGrid
        /// </summary>
        /// <param name="grid">The DataGrid instance</param>
        /// <param name="index">The index of the row</param>
        /// <returns>A row of the DataGrid</returns>
        public static DataGridRow GetRow(this DataGrid grid, int index)
        {
            DataGridRow row = (DataGridRow)grid.ItemContainerGenerator.ContainerFromIndex(index);
            if (row == null)
            {
                // May be virtualized, bring into view and try again.
                grid.UpdateLayout();
                grid.ScrollIntoView(grid.Items[index]);
                row = (DataGridRow)grid.ItemContainerGenerator.ContainerFromIndex(index);
            }
            return row;
        }
        /// <summary>
        /// Gets the selected row of the DataGrid
        /// </summary>
        /// <param name="grid">The DataGrid instance</param>
        /// <returns></returns>
        public static DataGridRow GetSelectedRow(this DataGrid grid)
        {
            return (DataGridRow)grid.ItemContainerGenerator.ContainerFromItem(grid.SelectedItem);
        }
    }
}//主程序
private void dataGrid1_PreviewKeyDown(object sender, KeyEventArgs e)
        {            try
            {
                if (e.Key == Key.Enter)
                {
                    e.Handled = true;
                    Int32 row = dataGrid1.Items.IndexOf(dataGrid1.CurrentItem);
                    Int32 Col = dataGrid1.Columns.IndexOf(dataGrid1.CurrentColumn);
                    var cell = DataGridHelper.GetCell(dataGrid1, row, Col+1);
                    if (cell != null)
                    {
                        cell.IsSelected = true;
                        cell.Focus();
                        //dataGrid1.BeginEdit();
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message, "Error");
            }
        }

Answer 6

非常感谢 lele_nancy 的帮助。问题已经解决！