Dev GridControl 主从表，数据加载，数据获取，单个从表获取 ，主从表单元格光标跳转

描述 ：首先明白主从表的关系  可以直接理解成  1对多的关系主表一行对应一个子表  

1 .数据加载   

界面：如图新建两个VIew 

 绑定数据   GrcDetail.DataSource = ShowModes;  list<model> 的集合 

       PlanTargeEditViewModel md = new PlanTargeEditViewModel()
                        {
                            TargetId = list.Id,
                            Id = planId,
                            Color = list.Color,
                            Level = list.Level,
                            UnitOfMeasureMent = list.UnitOfMeasurement.ToString(),
                            Count = list.Count,
                            Price = list.Price,
                            WarehoueName = list.WarehouseName,
                            MaterialName = list.MaterialName,
                            Specification = list.Specification,
                            ProcessingCharges = list.ProcessingCharges,
                            FinalPrice = Upf.BackColor == Color.LimeGreen ? ((list.ConfirmPrice == 0) ? 0 : list.ConfirmPrice) : null,
                            ConfirmPrice = (totalprice + decimal.Parse(string.IsNullOrEmpty(list.ProcessingCharges.ToString()) ? "0" : list.ProcessingCharges.ToString())).ToString(),
                            SegmentList = upstreamListlist,

                        };

                        ShowModes.Add(md);
                        GrcDetail.DataSource = ShowModes;

SegmentList 这个是子表list<model>的集合，这个名称得写对

2.数据获取
   1.直接获取数据源用于保存整表 datasources获取不解释 
   2.主表相关事件中获取子表  

 private void Grv01_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == Keys.Enter && pri != 0)
            {
                if (Grv01.FocusedColumn == MProcessingCharges)
                {
                    var view = (GridView)GrcDetail.FocusedView;//获取当前焦点所在的view
                    GridView child = (GridView)view.GetDetailView(view.FocusedRowHandle, view.GetRelationIndex(view.FocusedRowHandle, "SegmentList"));
                     //GetDetailView(主表行index,子表行index) getrelationindex 获取子表的索引（主表index,"子表名称")
                    if (child !=null && child.RowCount > 0)
                    {
                        child.FocusedRowHandle = 0;
                        child.FocusedColumn = child.Columns["Price"];
                        BeginInvoke(new Action(() => { child.ShowEditor(); }));
                    }
                }
                if (Grv01.FocusedColumn == MFinalPrice)
                {
                    var view = (GridView)GrcDetail.FocusedView;
                    int index = view.FocusedRowHandle;
                    int RowCount = Grv01.RowCount - 1;
                    if (index < RowCount)
                    {
                        view.FocusedRowHandle = index + 1;
                        view.FocusedColumn = view.Columns["ProcessingCharges"];
                        BeginInvoke(new Action(() => { view.ShowEditor(); }));
                    }
                }
            }


        }

3.子表中获取主表就简单了   主表有FocusedRowHandle  ，子表也有FocusedRowHandle 这俩不冲突  所以GetRowCellValue直接取就行了 

3.回车主子表跳转
想：1.这是俩操作主表跳子表主view,kewdown

  private void Grv01_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == Keys.Enter && pri != 0)
            {
                if (Grv01.FocusedColumn == MProcessingCharges)
                {
                    var view = (GridView)GrcDetail.FocusedView;
                    GridView child = (GridView)view.GetDetailView(view.FocusedRowHandle, view.GetRelationIndex(view.FocusedRowHandle, "SegmentList"));

                    if (child !=null && child.RowCount > 0)
                    {
                        child.FocusedRowHandle = 0;
                        child.FocusedColumn = child.Columns["Price"];
                        BeginInvoke(new Action(() => { child.ShowEditor(); }));
                    }
                }
                if (Grv01.FocusedColumn == MFinalPrice)
                {
                    var view = (GridView)GrcDetail.FocusedView;
                    int index = view.FocusedRowHandle;
                    int RowCount = Grv01.RowCount - 1;
                    if (index < RowCount)
                    {
                        view.FocusedRowHandle = index + 1;
                        view.FocusedColumn = view.Columns["ProcessingCharges"];
                        BeginInvoke(new Action(() => { view.ShowEditor(); }));
                    }
                }
            }


        }

2.子表到主表 子表view，keydown

 private void PlanSources_KeyDown(object sender, KeyEventArgs e)
        {
            if (e.KeyData == Keys.Enter && pri != 0)
            {
                var view = (GridView)GrcDetail.FocusedView;
                int DetailIndex = view.FocusedRowHandle;
                int RowCount = view.RowCount - 1;
                int MainIndex = Grv01.FocusedRowHandle;
                if (DetailIndex < RowCount)
                {
                    view.FocusedRowHandle = DetailIndex + 1;
                    view.FocusedColumn = view.Columns["Price"];
                    BeginInvoke(new Action(() => { view.ShowEditor(); }));
                }
                else
                {
                    BeginInvoke(new Action(() => { view.ShowEditor(); }));
                    Grv01.FocusedRowHandle = MainIndex;
                    Grv01.FocusedColumn = Grv01.Columns["FinalPrice"];
                    BeginInvoke(new Action(() => { Grv01.ShowEditor(); }));
                }
            }
        }

其他：BeginInvoke(new Action(() => { view.ShowEditor(); })); 这个我理解的就是  更新设置的意思可能理解的不对，改了哪个view 的设置就更新哪个

亲测绝对有效 都给人客户弄上了