关上SAP C4C Cloud Application Studio，

进入Solution Explorer，右键菜单里抉择Add -> New Item:

新建一个Business Object，取名CarPark:

源代码如下：

import AP.FO.BusinessPartner.Global;import AP.Common.GDT as apCommonGDT; businessobject CarPark   // *Further Development*    // declare an error message that is called if the BO fails validation    // raises Message_Car_Park_Full      {        // Root node must not be specified, it is created implicitly    //     // Add elements here.    //// To declare an element as alternative key, use the [AlternativeKey] // annotation.//Please note:   // - An alternative key of type UUID exists implicitly for each node, enabling   //  the node to be used as an association target.    // - The QueryByElements query is created automatically for each node.   // Code completion is available with CTRL + SPACE.     // *Further Development*    // define an error message to be displayed if the BO fails validation   // message Message_Car_Park_Full text "The car park is full - no spaces available";        // Car Park ID - (the company may have multiple car parks)    // - therefore we use this ID to identify the individual car park    element CarParkID : ID;       // additional information on the car park    element CarParkName : LANGUAGEINDEPENDENT_LONG_Text;    element CarParkDescription : LANGUAGEINDEPENDENT_LONG_Description;    element Number_of_ParkingSpaces : IntegerValue;     // *Further Development*    // add an element to display how many parking spaces are available    // element Number_of_ParkingSpaces_Available : IntegerValue;    // declare an action to calculate the available car spaces    // action Update_AvailableParkingSpaces;    // *Further Development*    // add an element to record location information  // this field is used with a URL mashup to display the location of the car park     // element CarParkLocation : LANGUAGEINDEPENDENT_MEDIUM_Description;      // each car park will have multiple parking spaces    // we create a node with 0 to n parking spaces     node ParkingSpace [0,n]    {       // each parking space is assigned a unique identifier       element ParkingSpaceID : ID;           // display the ID of the Employee assigned to the parking space      element ParkingSpace_AssignedEmployeeID : ID;      // a parking space may be designated as a "Disabled Friendly" parking space      element ParkingSpace_Disabled : Indicator;           // is there an electric charging station for this parking space ?      element ParkingSpace_ElectricChargeStation : Indicator;          // display the license plate number of the employee's car       element Vehicle_RegistrationNumber : LANGUAGEINDEPENDENT_MEDIUM_Text;         // for a multi-level car park, we have the possibility to specify a level number      element ParkingSpace_Level : NumberValue;       // we need to create an association to the SAP BO "Employee"      // this allows us to include elements from the Employee BO in our screens      // a parking space may be associated to at most one employee      association ToEmployee [0,1] to Employee;      }}

激活该BO，确保Activation Status为Runtime Objects up to date:

BO激活后，右键菜单抉择Create Screens：

抉择Screen Scenario with Thing-Based navigation：

会主动生成很多SAP Cloud for Customer 屏幕：

双击QA关上主动生成的UI，发现下面曾经有一些来自BO低头级别的字段了：

点工具栏上这个AddFlexLayoutRow按钮：

呈现一个新的空白行：

将Toolbox里的控件AdvancedListPane拖到新建的FlexLayoutRow里：

选中某一个column，右键菜单里增加一个新的column：

当初咱们有了一个表格，蕴含四列：

View菜单里关上：BO Browser / Data Model，使其显示在屏幕左边：

把ParkingSpaceID拖拽到第一列下来：

抉择No：

从而建设了UI字段和BO 模型字段的绑定关系：

此处查看绑定关系：

显示employee ID的字段默认是input field，须要将其改成value help：

改成Object Value Selector：OVS

抉择/SAP_BYD_APPLICATION_UI/publicovs/employeeid/
EmployeeID: 作为OVS Component：

把字段：ToEmployee.CurrentCommon.Person.Name.GivenName拖到第三列：

familyName拖到第四列：

把GivenName的display type设置为Static Text：

左边properties下拉菜单里，抉择AdvancedListPaneVariant: ListPaneVariant：

useToolbar从false改成true：

设置成true之后，多了两个按钮：Add Row和Remove.

选中Add Row按钮，新建一个Event handler：

新建一个operation，类型为List：

Target List里，从下拉菜单抉择/Root/DataList：

给Remove按钮也增加一个event handler：

再增加一个save action，确保Row被删除后主动保留：

选中identificationRegion:

点击Advanced：

抉择CarParkID：

最终成果：

选中SectionGroup，能够对外面的字段进行地位程序调整：

最初把用户调配到这个新建好的work center即可：

当初就能够进行测试了：

更多Jerry的原创文章，尽在："汪子熙":