自定义属性网格未绑定更新的数据

Question

Xaml代码：

<helper:CustomPropertyGridControl x:Name="pgeditEquipment"
                                          ShowMenuButtonInRows="False"
                                          ShowCategories="True"
                                          ExpandCategoriesWhenSelectedObjectChanged="True"
                                          ShowProperties="All"
                                          ScrollViewer.VerticalScrollBarVisibility="Disabled"
                                          SelectedObject="{Binding Path = SelectChildEquipment,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}">
                        <!--LayoutUpdated="pgEquipment_LayoutUpdated"-->
                        <!--CustomExpand="pgEquipment_CustomExpand"-->
                        <dxprg:PropertyGridControl.PropertyDefinitions>
                            <dxprg:PropertyDefinition PostOnEditValueChanged="True" Path="PartNumber">
                                <dxprg:PropertyDefinition.EditSettings>
                                    <dxe:ButtonEditSettings AllowDefaultButton="False">
                                        <dxe:ButtonEditSettings.Buttons>
                                            <dxe:ButtonInfo Content="SAP Search " Name="btnSapSearch" Command="{Binding Path=SAPSearchCommand}" IsDefaultButton="True" />
                                        </dxe:ButtonEditSettings.Buttons>
                                    </dxe:ButtonEditSettings>
                                </dxprg:PropertyDefinition.EditSettings>

绑定和命令

    private EquipmentModel _SelectChildEquipment;

            public EquipmentModel SelectChildEquipment
            {
                get
                {               
                    return _SelectChildEquipment;
                }
                set
                {
                    _SelectChildEquipment = value;
                    GetEquipmentDetailsAndVisibilities();
                    RaisePropertyChanged("SelectChildEquipment");
                }
            }

         private void GetEquipmentDetailsAndVisibilities()
         {
            if (_SelectChildEquipment == null) return;
            if (_SelectChildEquipment.ID != Guid.Empty)
            {
                ApplicationState.SelectedEquipment = 
 ApplicationState.EquipmentList.Where(x => x.ID == 
ApplicationState.SelectedEquipment.ID).FirstOrDefault();
                ApplicationState.SelectedChildEquipment = 
ApplicationState.SelectedEquipment.BOMTreeList.Where(X => X.ID == 
_SelectChildEquipment.ID).FirstOrDefault(); ;
                SelectChildDatails();
            }
            ActiveCheck = _SelectChildEquipment.CleanEquipmentStructure;
            if (!ActiveCheck)
            {
                InActiveCheck = true;
            }

            if (_SelectChildEquipment.ID_ObjectType == 
Constants.IdProtectionDesignObjectType && 
ApplicationState.SelectedCustomer.ID_Type != Constants.IdProspectCustomer)
            {
                InUseNotInUseVisibility = true;
            }
            else
            {
                InUseNotInUseVisibility = false;
            }
            ITKKVisibility = _SelectChildEquipment.IsItkkHolderObject;
            PartTypeVisibility = !_SelectChildEquipment.IsItkkHolderObject;
            DeleteButtonVisibility = true;
            RaisePropertyChanged("SelectChildObject");
            RaisePropertyChanged("AttachmentChildList");
        }

       private void SAPSearch()
        {
            try
            {

                    _SelectChildEquipment.PartDescription = PartDescription 
= searchMaterialViewModel.MaterialList[0].MaterialDescription;
                    _SelectChildEquipment.PartDescription_EN= 
ApplicationState.SelectedChildEquipment.PartDescription_EN = 
searchMaterialViewModel.MaterialList[0].MaterialDescription_EN;
                    _SelectChildEquipment.DateTime_LastChange = 
DateTime.Now;

                RaisePropertyChanged("SelectChildEquipment");                                      
            }
            catch (Exception ex)
            {

CustomePropertyMessageBoxControl.ShowErrorMessageWithDetails(ex.Message, 
ex.StackTrace, "Error");
            }
            finally
            {
                Splash.Splasher.CloseSplash();
            }
        }

我需要在sap search命令上绑定数据。命令已经在触发，上下文也在更新，但UI不在。
单击该树时，相同的SelectChildEquipment属性必定也会加载。

有什么办法可以解决此问题。重新加载数据时解决了该问题，但我希望在单击搜索按钮时完成此操作。