DataServiceContext.BeginGetReadStream 方法 (Object, String, DataServiceRequestArgs, AsyncCallback, Object)
透過使用指定的訊息標頭，非同步取得屬於指定之實體的具名二進位資料流。
命名空間： System.Data.Services.Client
組件： Microsoft.Data.Services.Client (在 Microsoft.Data.Services.Client.dll 中)
語法
'宣告
Public Function BeginGetReadStream ( _
entity As Object, _
name As String, _
args As DataServiceRequestArgs, _
callback As AsyncCallback, _
state As Object _
) As IAsyncResult
'用途
Dim instance As DataServiceContext
Dim entity As Object
Dim name As String
Dim args As DataServiceRequestArgs
Dim callback As AsyncCallback
Dim state As Object
Dim returnValue As IAsyncResult
returnValue = instance.BeginGetReadStream(entity, _
name, args, callback, state)
public IAsyncResult BeginGetReadStream(
Object entity,
string name,
DataServiceRequestArgs args,
AsyncCallback callback,
Object state
)
public:
IAsyncResult^ BeginGetReadStream(
Object^ entity,
String^ name,
DataServiceRequestArgs^ args,
AsyncCallback^ callback,
Object^ state
)
member BeginGetReadStream :
entity:Object *
name:string *
args:DataServiceRequestArgs *
callback:AsyncCallback *
state:Object -> IAsyncResult
public function BeginGetReadStream(
entity : Object,
name : String,
args : DataServiceRequestArgs,
callback : AsyncCallback,
state : Object
) : IAsyncResult
參數
- entity
型別：System.Object
包含要擷取之二進位資料流的實體。
- name
型別：System.String
所要求之二進位資料流的名稱。
- args
型別：System.Data.Services.Client.DataServiceRequestArgs
DataServiceRequestArgs 類別的執行個體，其中包含 HTTP 要求訊息的設定。
- callback
型別：System.AsyncCallback
有結果可供用戶端使用時要叫用的方法。
- state
型別：System.Object
傳遞至回呼的使用者定義狀態物件。
傳回值
型別：System.IAsyncResult
用於追蹤非同步作業之狀態的 IAsyncResult 物件。