WinForms Data Grid - How to handle a double-click on a data row or cell

C#
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using DevExpress.XtraGrid.Views.Grid;
using DevExpress.XtraGrid.Views.Grid.ViewInfo;
using DevExpress.XtraEditors;
using DevExpress.XtraGrid;

namespace DoubleClickCell {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e) {
            new DevExpress.XtraGrid.Design.XViewsPrinting(gridControl1);
            radioGroup1_SelectedIndexChanged(radioGroup1, EventArgs.Empty);
        }

        private static void DoRowDoubleClick(GridView view, Point pt) {
            GridHitInfo info = view.CalcHitInfo(pt);
            if(info.InRow || info.InRowCell) {
                string colCaption = info.Column == null ? "N/A" : info.Column.GetCaption();
                MessageBox.Show(string.Format("DoubleClick on row: {0}, column: {1}.", info.RowHandle, colCaption));
            }
        }

        private void radioGroup1_SelectedIndexChanged(object sender, EventArgs e) {
            gridView1.DoubleClick -= gridView1_DoubleClick;
            gridView1.ShownEditor -= gridView1_ShownEditor;
            gridView1.HiddenEditor -= gridView1_HiddenEditor;

            switch(radioGroup1.SelectedIndex) {
                case 0:
                    // Requires a single event handler. Works always.
                    gridView1.OptionsBehavior.Editable = false;
                    gridView1.DoubleClick += gridView1_DoubleClick;
                    break;

                case 1:
                    // Requires a single event handler. Doesn't work when double-clicking an open inplace editor.
                    gridView1.OptionsBehavior.Editable = true;
                    gridView1.OptionsBehavior.EditorShowMode = DevExpress.Utils.EditorShowMode.Click;
                    gridView1.DoubleClick += gridView1_DoubleClick;
                    break;

                case 2:
                    // Requires 3 event handlers. Works always.
                    gridView1.OptionsBehavior.Editable = true;
                    gridView1.OptionsBehavior.EditorShowMode = DevExpress.Utils.EditorShowMode.Default;
                    gridView1.DoubleClick += gridView1_DoubleClick;
                    gridView1.ShownEditor += gridView1_ShownEditor;
                    gridView1.HiddenEditor += gridView1_HiddenEditor;
                    break;
            }
        }

        private void gridView1_DoubleClick(object sender, EventArgs e) {
            GridView view = (GridView)sender;
            Point pt = view.GridControl.PointToClient(Control.MousePosition);
            DoRowDoubleClick(view, pt);
        }

        BaseEdit inplaceEditor;
        private void gridView1_ShownEditor(object sender, EventArgs e) {
            inplaceEditor = ((GridView)sender).ActiveEditor;
            inplaceEditor.DoubleClick += inplaceEditor_DoubleClick;
        }        

        private void gridView1_HiddenEditor(object sender, EventArgs e) {
            if(inplaceEditor != null) {
                inplaceEditor.DoubleClick -= inplaceEditor_DoubleClick;
                inplaceEditor = null;
            }
        }

        void inplaceEditor_DoubleClick(object sender, EventArgs e) {
            BaseEdit editor = (BaseEdit)sender;
            GridControl grid = (GridControl)editor.Parent;
            Point pt = grid.PointToClient(Control.MousePosition);
            GridView view = (GridView)grid.FocusedView;
            DoRowDoubleClick(view, pt);
        }
    }
}

Visual Basic
Imports System
Imports System.ComponentModel
Imports System.Data
Imports System.Drawing
Imports System.Windows.Forms
Imports DevExpress.XtraGrid.Views.Grid
Imports DevExpress.XtraGrid.Views.Grid.ViewInfo
Imports DevExpress.XtraEditors
Imports DevExpress.XtraGrid

Namespace DoubleClickCell

    Public Partial Class Form1
        Inherits Form

        Public Sub New()
            InitializeComponent()
        End Sub

        Private Sub Form1_Load(ByVal sender As Object, ByVal e As EventArgs)
            Dim tmp_XViewsPrinting = New Design.XViewsPrinting(gridControl1)
            radioGroup1_SelectedIndexChanged(radioGroup1, EventArgs.Empty)
        End Sub

        Private Shared Sub DoRowDoubleClick(ByVal view As GridView, ByVal pt As Point)
            Dim info As GridHitInfo = view.CalcHitInfo(pt)
            If info.InRow OrElse info.InRowCell Then
                Dim colCaption As String = If(info.Column Is Nothing, "N/A", info.Column.GetCaption())
                MessageBox.Show(String.Format("DoubleClick on row: {0}, column: {1}.", info.RowHandle, colCaption))
            End If
        End Sub

        Private Sub radioGroup1_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs)
            RemoveHandler gridView1.DoubleClick, AddressOf gridView1_DoubleClick
            RemoveHandler gridView1.ShownEditor, AddressOf gridView1_ShownEditor
            RemoveHandler gridView1.HiddenEditor, AddressOf gridView1_HiddenEditor
            Select Case radioGroup1.SelectedIndex
                Case 0
                    ' Requires a single event handler. Works always.
                    gridView1.OptionsBehavior.Editable = False
                    AddHandler gridView1.DoubleClick, AddressOf gridView1_DoubleClick
                Case 1
                    ' Requires a single event handler. Doesn't work when double-clicking an open inplace editor.
                    gridView1.OptionsBehavior.Editable = True
                    gridView1.OptionsBehavior.EditorShowMode = DevExpress.Utils.EditorShowMode.Click
                    AddHandler gridView1.DoubleClick, AddressOf gridView1_DoubleClick
                Case 2
                    ' Requires 3 event handlers. Works always.
                    gridView1.OptionsBehavior.Editable = True
                    gridView1.OptionsBehavior.EditorShowMode = DevExpress.Utils.EditorShowMode.Default
                    AddHandler gridView1.DoubleClick, AddressOf gridView1_DoubleClick
                    AddHandler gridView1.ShownEditor, AddressOf gridView1_ShownEditor
                    AddHandler gridView1.HiddenEditor, AddressOf gridView1_HiddenEditor
            End Select
        End Sub

        Private Sub gridView1_DoubleClick(ByVal sender As Object, ByVal e As EventArgs)
            Dim view As GridView = CType(sender, GridView)
            Dim pt As Point = view.GridControl.PointToClient(MousePosition)
            DoRowDoubleClick(view, pt)
        End Sub

        Private inplaceEditor As BaseEdit

        Private Sub gridView1_ShownEditor(ByVal sender As Object, ByVal e As EventArgs)
            inplaceEditor = CType(sender, GridView).ActiveEditor
            AddHandler inplaceEditor.DoubleClick, AddressOf inplaceEditor_DoubleClick
        End Sub

        Private Sub gridView1_HiddenEditor(ByVal sender As Object, ByVal e As EventArgs)
            If inplaceEditor IsNot Nothing Then
                RemoveHandler inplaceEditor.DoubleClick, AddressOf inplaceEditor_DoubleClick
                inplaceEditor = Nothing
            End If
        End Sub

        Private Sub inplaceEditor_DoubleClick(ByVal sender As Object, ByVal e As EventArgs)
            Dim editor As BaseEdit = CType(sender, BaseEdit)
            Dim grid As GridControl = CType(editor.Parent, GridControl)
            Dim pt As Point = grid.PointToClient(MousePosition)
            Dim view As GridView = CType(grid.FocusedView, GridView)
            DoRowDoubleClick(view, pt)
        End Sub
    End Class
End Namespace