[InvalidOperationException: 超时时间已到。超时时间已到,但是尚未从池中获取连接。出现这种情况可能是因为所有池连接均在使用,并且达到了最大池大小。]
System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) +440
System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +315
System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +128
System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +265
System.Data.SqlClient.SqlConnection.Open() +133
DTcms.DBUtility.DbHelperSQL.Query(String SQLString) in D:\网站文件\f复宏汉霖019\复宏汉霖019\DTcms.DBUtility\DbHelperSQL.cs:550
DTcms.DAL.article_category.GetChildList(Int32 parent_id, Int32 channel_id) +456
DTcms.BLL.article_category.GetChildList(Int32 parent_id, Int32 channel_id) in D:\网站文件\f复宏汉霖019\复宏汉霖019\DTcms.BLL\article_category.cs:84
DTcms.Web.aspx.en.ListedProduct.Page_Load(Object sender, EventArgs e) +368
System.Web.UI.Control.OnLoad(EventArgs e) +108
System.Web.UI.Control.LoadRecursive() +90
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533
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