using IdeaBlade.Cab.Interface;
using IdeaBlade.Cab.Interface.Constants;
using IdeaBlade.Cab.UI.Services;
using Microsoft.Practices.CompositeUI;
using DevExpress.Utils.Menu;
using System;
using System.Drawing;
namespace IdeaBlade.Cab.DevEx
{
    public class DevExGridViewMenuItem : DXMenuItem
    {
        public DevExGridViewMenuItem(string pCaption, EventHandler pClick, Image pImage, bool pBeginGroup)
            : base(pCaption, pClick, pImage)
        {
            this.BeginGroup = pBeginGroup;
        }
        public ContextMenuItem SourceContextMenuItem
        {
            get
            {
                return mSourceContextMenuItem;
            }
            set
            {
                mSourceContextMenuItem = value;
            }
        }
        public object RowObject
        {
            get
            {
                return mRowObject;
            }
            set
            {
                mRowObject = value;
            }
        }
 
        private ContextMenuItem mSourceContextMenuItem;
        private object mRowObject;
    }
}

public override void InitializeGridViewEvents()
{
...
GridView.MouseDown += MouseDownHandler;
...
}
 
void MouseDownHandler(object sender, MouseEventArgs e)
{
GridView gv = (GridView) sender;
GridHitInfo hitInfo = gv.CalcHitInfo(e.X, e.Y);
if (hitInfo.IsValid && hitInfo.InRow && gv.IsDataRow(hitInfo.RowHandle))
{
object rowObject = gv.GetRow(hitInfo.RowHandle);
if (rowObject == null)
    return;
 
GridRowEventArgs info = new GridRowEventArgs(rowObject);
ViewContext.OnRowClick(info);
}
 
mLastHitInfo = hitInfo;
}

private void AddBedGridView()
{
EntityBindingSource ebs = new EntityBindingSource(typeof(Room), EntityManager, ParentRootEntity, ClientGroup.Descriptors.RoomList.PropertyPath);
GridViewContext gvc = GridViewContext.AddNew(WorkItem, PlaceholderNames.SettleFreeBeds, ebs);
gvc.DefaultGridBuilderPrototypeName = GridBuilderNames.SettleRooms;
gvc.RowClickHandler = PlaceChosen;
gvc.AutoExpandAllMasterRows = true;
DetailGridViewContext dgvc = new DetailGridViewContext(gvc, "Beds", typeof(Bed), Room.Descriptors.FreeBeds);
dgvc.RowClickHandler = PlaceChosen;
dgvc.DefaultGridBuilderPrototypeName = GridBuilderNames.SmallSettleRoomsBedsDetail;
AddNewSubGridView<Room>(PlaceholderNames.SettleFreeBeds);
}
...
private void PlaceChosen(GridRowEventArgs e)
{
if (e.RowObject is Room)
{ ... }
else if (e.RowObject is Bed)
{ ... }
}