DataServiceContext.BeginExecute 方法 (Uri, AsyncCallback, Object, String, array<OperationParameter[])
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 ( _
requestUri As Uri, _
callback As AsyncCallback, _
state As Object, _
httpMethod As String, _
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 operationParameters As OperationParameter()
Dim returnValue As IAsyncResult
returnValue = instance.BeginExecute(requestUri, _
callback, state, httpMethod, operationParameters)
public IAsyncResult BeginExecute(
Uri requestUri,
AsyncCallback callback,
Object state,
string httpMethod,
params OperationParameter[] operationParameters
)
public:
IAsyncResult^ BeginExecute(
Uri^ requestUri,
AsyncCallback^ callback,
Object^ state,
String^ httpMethod,
... array<OperationParameter^>^ operationParameters
)
member BeginExecute :
requestUri:Uri *
callback:AsyncCallback *
state:Object *
httpMethod:string *
operationParameters:OperationParameter[] -> IAsyncResult
public function BeginExecute(
requestUri : Uri,
callback : AsyncCallback,
state : Object,
httpMethod : String,
... operationParameters : OperationParameter[]
) : IAsyncResult
参数
- requestUri
类型:System.Uri
查询请求将发送到的 URI。
- callback
类型:System.AsyncCallback
当结果可供客户端使用时将调用的委托。
- 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。
- operationParameters
类型:array<System.Data.Services.Client.OperationParameter[]
使用的操作参数。
返回值
类型:System.IAsyncResult
操作的结果。