Power Apps 学习笔记 - IOrganizationService Interface

1. IOrganization Interface

1.1 基本介绍

1. IOrganization 是用于向组织提供元数据以及数据的编程访问的接口. (Dataverse的增删改查以及表联系的相关操作)

//ServiceClient、CrmServiceClient 都可实现 IOrganizationService接口
IOrganizationService service = new CrmServiceClient(connectionString);
IOrganizationService service = new ServiceClient(connectionString);

using Microsoft.Crm.Sdk.Messages;
using Microsoft.PowerPlatform.Dataverse.Client;
using Microsoft.Xrm.Sdk;

class Program
{
    // Dataverse环境URL以及登录信息
   static string url = "https://yourorg.crm.dynamics.com";
   static string userName = "you@yourorg.onmicrosoft.com";
   static string password = "yourPassword";

    // 连接上述代码串进行测试
    static string connectionString = $@"
    AuthType = OAuth;
    Url = {url};
    UserName = {userName};
    Password = {password};
    AppId = 51f81489-12ee-4a9e-aaae-a2591f45987d;
    RedirectUri = http://localhost;
    LoginPrompt=Auto;
    RequireNewInstance = True";

    static void Main()
    {
        // 获取IorganizationService的接口实例
        IOrganizationService service = new ServiceClient(connectionString);

        var response = (WhoAmIResponse)service.Execute(new WhoAmIRequest());
        Console.WriteLine($"User ID is {response.UserId}.");

        // Pause the console so it does not close.
        Console.WriteLine("Press the <Enter> key to exit.");
        Console.ReadLine();
    }
}

? 参考文献. c#连接Microsoft Dataver：c#连接 MicroSoft Dataverse
?

1.2 方法分析

? 参考文献. IOrganization：IOrganizationService 接口
?

2. Entity对象

2.1 Constructor

在这里插入代码片

2.2 Properties

在这里插入代码片

2.3 Methods

在这里插入代码片

? 参考文献. Entity对象：Entity对象

3. 相关方法

3.1 单行查询 Retrive

? a. 代码及使用

//public Microsoft::Xrm::Sdk::Entity ^ Retrieve(System::String ^ entityName, Guid id, Microsoft::Xrm::Sdk::Query::ColumnSet ^ columnSet);    
static void Retrive(IOrganizationService service){
    string entityName = "crda9_room"; // 逻辑名称
    ColumnSet columnSet = new ColumnSet("crda9_name", "crda9_type", "crda9_site"); // 查询的属性
    Guid guid = new Guid("4e4c81a1-439d-ee11-be37-000d3a85d073"); // 全局唯一标识符

    Entity entity = service.Retrieve(entityName, guid, columnSet); // 发起查询
    Console.WriteLine($"name:{entity.GetAttributeValue<string>("crda9_name")}"
        + "   " + $"type:{entity.GetAttributeValue<OptionSetValue>("crda9_type").Value}"
        + "   " + $"site:{entity.GetAttributeValue<string>("crda9_site")}");
}

?

3.2 多行查询 RetriveMultiple

? a. 代码及使用

// Microsoft::Xrm::Sdk::EntityCollection ^ RetrieveMultiple(Microsoft::Xrm::Sdk::Query::QueryBase ^ query);
static void RetriveMultiple(IOrganizationService service){
    QueryExpression query = new("crda9_room") { }; // 表逻辑名称
    EntityCollection results = service.RetrieveMultiple(query); // 查询发送

    foreach (Entity entity in results.Entities){
        Console.WriteLine($"Id:{entity.Id}"); // 全局唯一标识符(每行数据有一个Id)
        Console.WriteLine($"name:{entity.Attributes["crda9_name"]}");
    }
}

? b. QueryExpression 总结

public ref class QueryExpression sealed : Microsoft::Xrm::Sdk::Query::QueryBase
query.EntityName = "crda9_room"; // 1.EntityName --> 表逻辑名(可在构造函数时直接构造)
query.ColumnSet.AddColumns("crda9_name"); // 2.ColumnSet --> 负责查询列数
query.Criteria.AddCondition("crda9_type", ConditionOperator.Equal, 0); // 3.Criteria --> 查询限定条件
query.AddOrder("crda9_name", OrderType.Ascending); // 4. AddOrder --> 列排序
query.TopCount = 2; // 5. TopCount --> 控制显示的行数(与PageInfo不能同时使用)
query.PageInfo = new PagingInfo() {  // 6. PageInfor --> 控制分页
    PageNumber = 1, // 页数
    Count = 2 // 每页数量
};

?

3.3 增加 Create

? a. 代码及使用

// Guid Create(Microsoft::Xrm::Sdk::Entity ^ entity);
static void CreateExpressionExample(IOrganizationService service)
{
    Entity entity = new Entity("crda9_student");
    entity["crda9_name"] = "新学生_张雪雪";
    entity["crda9_age"] = 17;
    
    Guid id = service.Create(entity); 
    Console.WriteLine("新学生的唯一id为：" + id);
}

?

3.4 删除 Delete

? a. 代码及使用

//  void Delete(System::String ^ entityName, Guid id);
static void DeleteExpressionExample(IOrganizationService service)
{
    string entityName = "crda9_student"; // 逻辑名称
    Guid guid = new Guid("e334ba87-4c9a-ee11-be37-000d3a85d073"); // 全局唯一标识符

    service.Delete(entityName, guid); 
}

?

3.5 修改 Update

? a. 代码及使用

// void Update(Microsoft::Xrm::Sdk::Entity ^ entity);
    static void UpdateExpressionExample(IOrganizationService service)
    {
        Guid id = CreateExpressionExample(service); // 先调用函数创建一个新学生，返回其Id唯一标识

        Entity entity = new Entity("crda9_student");
        entity.Id = id;
        entity["crda9_name"] = "更新后的学生";

        service.Update(entity);
        Console.WriteLine("successful update....");
    }