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VB.NET DataServiceQueryContinuation<T>类代码示例

本文整理汇总了VB.NET中System.Data.Services.Client.DataServiceQueryContinuation<T>的典型用法代码示例。如果您正苦于以下问题:VB.NET DataServiceQueryContinuation<T>类的具体用法?VB.NET DataServiceQueryContinuation<T>怎么用?VB.NET DataServiceQueryContinuation<T>使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。


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示例1: NorthwindEntities

' Create the DataServiceContext using the service URI.
Dim context = New NorthwindEntities(svcUri)
Dim token As DataServiceQueryContinuation(Of Customer) = Nothing
Dim pageCount = 0

Try
    ' Execute the query for all customers and get the response object.
    Dim response As QueryOperationResponse(Of Customer) = _
        CType(context.Customers.Execute(), QueryOperationResponse(Of Customer))

    ' With a paged response from the service, use a do...while loop 
    ' to enumerate the results before getting the next link.
    Do
        ' Write the page number.
        Console.WriteLine("Page {0}:", pageCount + 1)

        ' If nextLink is not null, then there is a new page to load.
        If token IsNot Nothing Then
            ' Load the new page from the next link URI.
            response = CType(context.Execute(Of Customer)(token),  _
            QueryOperationResponse(Of Customer))
        End If

        ' Enumerate the customers in the response.
        For Each customer As Customer In response
            Console.WriteLine(vbTab & "Customer Name: {0}", customer.CompanyName)
        Next

        ' Get the next link, and continue while there is a next link.
        token = response.GetContinuation()
    Loop While token IsNot Nothing
Catch ex As DataServiceQueryException
    Throw New ApplicationException( _
            "An error occurred during query execution.", ex)
End Try
开发者ID:VB.NET开发者,项目名称:System.Data.Services.Client,代码行数:35,代码来源:DataServiceQueryContinuation


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