GridControl 行或单元格提示信息

1.添加 DevExpress.Utils.ToolTipController 提示文本控件

2.设置表格属性 myGridControl.ToolTipController = this.toolTipController1;

3.编写事件GetActiveObjectInfo方法，设置提示信息。

 private void toolTipController1_GetActiveObjectInfo(object sender, DevExpress.Utils.ToolTipControllerGetActiveObjectInfoEventArgs e)
        {
            if (e.SelectedControl != gcMachine) return;
            ToolTipControlInfo info = null;
            try
            {
                GridView view = gcMachine.GetViewAt(e.ControlMousePosition) as GridView;
                if (view == null) return;
                GridHitInfo hi = view.CalcHitInfo(e.ControlMousePosition);
                if (hi.InRowCell)
                {
                    info = new ToolTipControlInfo(new CellToolTipInfo(hi.RowHandle, hi.Column, "cell"), GetCellHintText(view, hi.RowHandle, hi.Column));
                    return;
                }
              
            }
            finally
            {
                e.Info = info;
            }
        }

 private string GetCellHintText(GridView view, int rowHandle, DevExpress.XtraGrid.Columns.GridColumn column)
        {
            if (column.FieldName != SELECT_FIELD_NAME)
            {
                string cellVal = view.GetRowCellValue(rowHandle, column).ToString();
                //foreach (DevExpress.XtraGrid.Columns.GridColumn col in view.Columns)
                //    if (col.VisibleIndex < 0)
                //        ret += string.Format("\r\n {0}: {1}", col.GetTextCaption(), view.GetRowCellDisplayText(rowHandle, col));
                if (string.IsNullOrEmpty(cellVal) == false)
                {
                    TipStringBuilder.Clear();
                    //ToolTipDisplay.Remove(0, ToolTipDisplay.Length);
                    if (IsMachineRow(rowHandle) == true)
                    {//机器
                        CellMachine model = LstCellMachine.FirstOrDefault(m => m.ID == Convert.ToInt32(cellVal));//机器ID
                        if (model != null)
                        {
                            bool hasConflict = false;
                            if (SelectMachineFromType == SelectMachineTypes.ProductionSelect)
                            {//显示生产单号
                                MachineStates machineState = model.GetMachineState();
                                if (machineState == MachineStates.Conflict)
                                {
                                    if (DicMachinePlans.ContainsKey(model.ID))
                                    {
                                        hasConflict = true;
                                        List lstVirtualProdEvent = DicMachinePlans[model.ID] as List;
                                        bool isFirst = true;
                                        foreach (VirtualProduction vpe in lstVirtualProdEvent)
                                        {
                                            string startTime = string.Format("{0} {1}", vpe.StartTime.ToStringEx(), vpe.StartTime.ToLongTimeString());
                                            string endTime = string.Format("{0} {1}", vpe.EndTime.ToStringEx(), vpe.EndTime.ToLongTimeString());
                                            if (isFirst == true)
                                            {
                                                TipStringBuilder.AppendFormat("{0}\t{1}\t{2}", vpe.PoCodes, startTime, endTime);
                                                isFirst = false;
                                            }
                                            else
                                            {
                                                TipStringBuilder.AppendFormat("\r\n{0}\t{1}\t{2}", vpe.PoCodes, startTime, endTime);
                                            }
                                        }
                                    }
                                }
                            }
#if DEBUG
                            if (hasConflict == true)
                                TipStringBuilder.AppendFormat("\r\n{0}: {1}", "ID", model.ID);
                            else
                                TipStringBuilder.AppendFormat("\r{0}: {1}", "ID", model.ID);

#endif
                            TipStringBuilder.AppendFormat("\r\n {0}: {1}", CText.GetCommonMsgText("Brand", "品牌"), model.Brand);//品牌
                            TipStringBuilder.AppendFormat("\r\n {0}: {1}", CText.GetCommonMsgText("XingHao", "型号"), model.MachineModel);//型号
                            TipStringBuilder.AppendFormat("\r\n {0}: {1}", CText.TextDescription, model.Description);//备注
                        }
                    }
                    else
                    {//机种
                        MachineType mt = LstMachineType.Find(m => m.Name == cellVal);//机种名称
                        if (mt != null)
                        {
                            TipStringBuilder.AppendFormat("{0}: {1}", CText.TextDescription, mt.Description);//备注
                        }
                    }
                }
                return TipStringBuilder.ToString();
            }
            else
            {
                return string.Empty;
            }
        }