錯誤運行LINQ查詢

當我收到此錯誤錯誤運行LINQ查詢

"{"There is already an open DataReader associated with this Command which must be closed first."}"

下面是關於它的錯誤代碼。

var summaryViewModel = new YogaSpaceSummaryViewModel 
      { 
       SpaceImage = (from u in space.Images orderby u.Ordering ascending select u.ImageThumbnail).First(), 
       Title = space.Overview.Title, 
       SpaceId = space.YogaSpaceId, 
       DateCreated = space.DateCreated.ToShortDateString(), 
       StepsToList = space.StepsToList, 
       Status = space.Status 
      };

這段代碼的哪一部分這裏

YogaSpaceOverviewViewModel overviewViewModel = new YogaSpaceOverviewViewModel(); 

     foreach (YogaSpace space in yogaSpaces) 
     { 
      var summaryViewModel = new YogaSpaceSummaryViewModel 
      { 
       SpaceImage = (from u in space.Images orderby u.Ordering ascending select u.ImageThumbnail).First(), 
       Title = space.Overview.Title, 
       SpaceId = space.YogaSpaceId, 
       DateCreated = space.DateCreated.ToShortDateString(), 
       StepsToList = space.StepsToList, 
       Status = space.Status 
      }; 

      overviewViewModel.YogaSpaceSummarys.Add(summaryViewModel); 
     }

來源

2015-11-04 user1186050

正如消息所示，請檢查您的任何以前打開/使用過的DataReader是否已正確關閉。 – MusicLovingIndianGirl

我該如何檢查？ – user1186050

發佈DB連接的代碼 – MusicLovingIndianGirl

<connectionStrings> 
<add name="DatabaseEntities" connectionString="metadata=res://*/Database.csdl|res://*/Database.ssdl|res://*/Database.msl;provider=System.Data.SqlClient;provider connection string=&quot;Data Source=Server;Initial Catalog=Database;Persist Security Info=True;User ID=sa;Password=passowrd;MultipleActiveResultSets=True;Application Name=EntityFramework&quot;" providerName="System.Data.EntityClient" /> 
</connectionStrings>

啓用Webconfig

MultipleActiveResultSets

來源

2015-11-04 04:51:14 Rakin