踩坑日记 - DevExpress GridControl设置DataSource数据源无效

  private void gvCustomerCartons_FocusedRowChanged(object sender, DevExpress.XtraGrid.Views.Base.FocusedRowChangedEventArgs e)
        {
            var row = gvCustomerCartons.GetRow<dt_CustomerCartons>();

            if (row != null)
            {
                gcMaterialsFormula.DataSource = _DetailData.ListCartons_MaterialsFormula.Where(w => w.CartonCode == row.CartonCode).ToList();
                gcProcessSettings.DataSource = _DetailData.ListCartons_ProcessSettings.Where(w => w.CartonCode == row.CartonCode).ToList();
                gcSpecConvert.DataSource = _DetailData.ListCartons_SpecConvert.Where(w => w.CartonCode == row.CartonCode).ToList();
                gcWrapQtySettings.DataSource = _DetailData.ListCartons_WrapQtySettings.Where(w => w.CartonCode == row.CartonCode).ToList();
            }
            else
            {
                gcMaterialsFormula.DataSource = new List<dt_CustomerCartons_MaterialsFormula>();
                gcProcessSettings.DataSource = new List<dt_CustomerCartons_ProcessSettings>();
                gcSpecConvert.DataSource = new List<dt_CustomerCartons_SpecConvert>();
                gcWrapQtySettings.DataSource = new List<dt_CustomerCartons_WrapQtySettings>();
            }

            //必须调用RefreshDataSource方法刷新数据源！！！
            gcMaterialsFormula.RefreshDataSource();
            gcProcessSettings.RefreshDataSource();
            gcSpecConvert.RefreshDataSource();
            gcWrapQtySettings.RefreshDataSource();
        }