如何：获取 LobSystem 和 Entity
运行时对象模型提供了一个快速、只读的接口，用于读取和查询元数据存储库。本主题演示如何查询元数据存储库。
示例
此示例演示如何浏览元数据存储库并显示在业务数据目录中注册的 LobSystem 实例，以及如何获取 LobSystem 对象和 Entity 对象。
先决条件
确保已创建了一个共享服务提供程序。
用您的共享资源提供程序名称替换代码中的常量值 EnterYourSSPNameHere。
确保在示例中引用的 LobSystem 和实体名称存在于业务数据目录中。请使用有效的名称。
项目引用
运行此示例之前，在控制台应用程序的代码项目中添加下面的项目引用：
Microsoft.SharePoint
Microsoft.SharePoint.Portal
Microsoft.Office.Server
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using Microsoft.Office.Server.ApplicationRegistry.MetadataModel;
using Microsoft.Office.Server.ApplicationRegistry.Runtime;
using Microsoft.Office.Server.ApplicationRegistry.SystemSpecific;
using Microsoft.Office.Server.ApplicationRegistry.Infrastructure;
using WSSAdmin = Microsoft.SharePoint.Administration;
using OSSAdmin = Microsoft.Office.Server.Administration;
namespace Microsoft.SDK.SharePointServer.Samples
{
class GetSystemAndEntity
{
const string yourSSPName = "EnterYourSSPNameHere";
static void Main(string[] args)
{
SetupBDC();
DisplayLobSystemsinBDC();
GetLobSystem();
GetEntity();
Console.WriteLine("Press any key to exit...");
Console.Read();
}
static void SetupBDC()
{
SqlSessionProvider.Instance().SetSharedResourceProviderToUse(yourSSPName);
}
static void DisplayLobSystemsinBDC()
{
NamedLobSystemInstanceDictionary sysInstances = ApplicationRegistry.GetLobSystemInstances();
Console.WriteLine("Listing system instances...");
foreach (String name in sysInstances.Keys)
{
Console.WriteLine(name);
}
}
static void GetLobSystem()
{
NamedLobSystemInstanceDictionary sysInstances = ApplicationRegistry.GetLobSystemInstances();
LobSystemInstance AdvWorksIns = sysInstances["AdventureWorksSampleInstance"];
Console.WriteLine("Getting a system instance and displaying its ID...");
LobSystem AdvWorksSys = AdvWorksIns.GetLobSystem();
Console.WriteLine(AdvWorksSys.Name.ToString());
Console.WriteLine("ID: "+AdvWorksSys.Id.ToString());
}
static void GetEntity()
{
NamedLobSystemInstanceDictionary sysInstances = ApplicationRegistry.GetLobSystemInstances();
LobSystemInstance AdvWorksIns = sysInstances["AdventureWorksSampleInstance"];
Console.WriteLine("Getting an entity object and displaying its ID...");
Entity prodEntity = AdvWorksIns.GetEntities()["Product"];
Console.WriteLine(prodEntity.Name.ToString());
Console.WriteLine("ID: "+prodEntity.Id.ToString());
}
}
}