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我有一個WCF服務的Silverlight應用程序訪問的SQL Server數據庫的表。我複製了教程中的所有代碼,並從桌面上運行它。它無法加載sql服務器數據,儘管一切正常加載。 其他職位談論http://localhost:PortNumber/Service1.svc是問題,我應該部署服務器,而其他人談論使用可觀察集合。有沒有人有解釋問題可能是什麼以及如何糾正它。Silverlight的DataGrid中不顯示數據
Imports System.ServiceModel
Imports System.ServiceModel.Activation
公共類服務
<OperationContract()>
Public Function GetPostCounts() As List(Of RealTimePostCount)
' Add your operation implementation here
Dim db As New DataClasses1DataContext
Dim posts = (From record In db.RealTimePostCounts Order By record.boxCount, record.boxFeed, record.pollDate Select record)
Dim list As New List(Of RealTimePostCount)
For Each p In posts
list.Add(New RealTimePostCount With {.boxCount = p.boxCount, .boxFeed = p.boxFeed, .pollDate = p.pollDate})
Next
Return list
End Function
' Add more operations here and mark them with <OperationContract()>
末級
servicerefernces..clientconfig
<configuration>
<system.serviceModel>
<bindings>
<basicHttpBinding>
<binding name="BasicHttpBinding_Service1" maxBufferSize="2147483647"
maxReceivedMessageSize="2147483647">
<security mode="None" />
</binding>
</basicHttpBinding>
</bindings>
<client>
<endpoint address="http://localhost:12018/Service1.svc" binding="basicHttpBinding"
bindingConfiguration="BasicHttpBinding_Service1" contract="ServiceReference1.Service1"
name="BasicHttpBinding_Service1" />
</client>
</system.serviceModel>
得到了與TestClient的以下錯誤:無法調用服務。可能的原因:服務處於脫機狀態或無法訪問;客戶端配置與代理不匹配;現有的代理無效。有關更多詳細信息,請參閱堆棧跟蹤。您可以嘗試通過啓動新代理,還原爲默認配置或刷新服務來進行恢復。 – vbNewbie 2011-04-28 22:12:32
現在你有一個更詳細的錯誤。嘗試從這裏開始http://stackoverflow.com/questions/2671113/c-wcf-failed-to-invoke-the-service – agradl 2011-04-29 15:09:03