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DataServiceContext.BeginExecute<TElement> 方法 (Uri, AsyncCallback, Object, String, Boolean, array<OperationParameter[])

  • 项目

通过将请求异步发送到数据服务来执行特定 URI。

命名空间：  System.Data.Services.Client
程序集：  Microsoft.Data.Services.Client（在 Microsoft.Data.Services.Client.dll 中）

语法

声明
Public Function BeginExecute(Of TElement) ( _
    requestUri As Uri, _
    callback As AsyncCallback, _
    state As Object, _
    httpMethod As String, _
    singleResult As Boolean, _
    ParamArray operationParameters As OperationParameter() _
) As IAsyncResult
用法
Dim instance As DataServiceContext
Dim requestUri As Uri
Dim callback As AsyncCallback
Dim state As Object
Dim httpMethod As String
Dim singleResult As Boolean
Dim operationParameters As OperationParameter()
Dim returnValue As IAsyncResult

returnValue = instance.BeginExecute(requestUri, _
    callback, state, httpMethod, singleResult, _
    operationParameters)

public IAsyncResult BeginExecute<TElement>(
    Uri requestUri,
    AsyncCallback callback,
    Object state,
    string httpMethod,
    bool singleResult,
    params OperationParameter[] operationParameters
)

public:
generic<typename TElement>
IAsyncResult^ BeginExecute(
    Uri^ requestUri, 
    AsyncCallback^ callback, 
    Object^ state, 
    String^ httpMethod, 
    bool singleResult, 
    ... array<OperationParameter^>^ operationParameters
)

member BeginExecute : 
        requestUri:Uri * 
        callback:AsyncCallback * 
        state:Object * 
        httpMethod:string * 
        singleResult:bool * 
        operationParameters:OperationParameter[] -> IAsyncResult 

JScript 不支持一般类型和方法。

类型参数

  • TElement
    查询所返回的类型。

参数

  • requestUri
    类型：System.Uri
    查询请求将发送到的 URI。
  • state
    类型：System.Object
    已传递到回调的用户定义的状态对象。
  • httpMethod
    类型：System.String
    客户端所用的 HTTP 数据传输方法。
  • singleResult
    类型：System.Boolean
    用在服务操作上的属性，可指定操作返回其返回元素的单个实例。

返回值

类型：System.IAsyncResult
操作的结果。

请参阅

参考

DataServiceContext 类

BeginExecute 重载

System.Data.Services.Client 命名空间