[InvalidOperationException: 已有打开的与此 Command 相关联的 DataReader，必须首先将它关闭。]
System.Data.SqlClient.SqlInternalConnectionTds.ValidateConnectionForExecute(SqlCommand command) +1651597
System.Data.SqlClient.SqlConnection.ValidateConnectionForExecute(String method, SqlCommand command) +89
System.Data.SqlClient.SqlCommand.ValidateCommand(String method, Boolean async) +268
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) +118
System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +64
System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +161
System.Data.SqlClient.SqlCommand.ExecuteDbDataReader(CommandBehavior behavior) +41
System.Data.Common.DbCommand.ExecuteReader() +14
System.Data.Linq.SqlClient.SqlProvider.Execute(Expression query, QueryInfo queryInfo, IObjectReaderFactory factory, Object[] parentArgs, Object[] userArgs, ICompiledSubQuery[] subQueries, Object lastResult) +1290
System.Data.Linq.SqlClient.SqlProvider.ExecuteAll(Expression query, QueryInfo[] queryInfos, IObjectReaderFactory factory, Object[] userArguments, ICompiledSubQuery[] subQueries) +118
System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) +342
System.Data.Linq.DataQuery`1.System.Collections.Generic.IEnumerable.GetEnumerator() +33
System.Linq.WhereEnumerableIterator`1.MoveNext() +146
System.Linq.Buffer`1..ctor(IEnumerable`1 source) +120
System.Linq.d__1.MoveNext() +175
System.Linq.Enumerable.Count(IEnumerable`1 source) +180
ASP.views_article_details_aspx.__RenderContent3(HtmlTextWriter __w, Control parameterContainer) in d:\wwwroot\Teachers\web.xzygz.cn\Web\Views\Article\Details.aspx:623
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +268
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
System.Web.UI.Control.Render(HtmlTextWriter writer) +12
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
ASP.views_shared_front_master.__Render__control1(HtmlTextWriter __w, Control parameterContainer) in d:\wwwroot\Teachers\web.xzygz.cn\Web\Views\Shared\Front.Master:12
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +268
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
System.Web.UI.Control.Render(HtmlTextWriter writer) +12
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children) +128
System.Web.UI.Control.RenderChildren(HtmlTextWriter writer) +13
System.Web.Mvc.ViewPage.Render(HtmlTextWriter writer) +53
System.Web.UI.Control.RenderControlInternal(HtmlTextWriter writer, ControlAdapter adapter) +66
System.Web.UI.Control.RenderControl(HtmlTextWriter writer, ControlAdapter adapter) +100
System.Web.UI.Control.RenderControl(HtmlTextWriter writer) +25
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1303
