“/”应用程序中的服务器错误。

ConnectionString 属性尚未初始化。

说明: 执行当前 Web 请求期间,出现未经处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。

异常详细信息: System.InvalidOperationException: ConnectionString 属性尚未初始化。

源错误:


行 23: dim cmd as new sqlcommand(strsql,conn)
行 24: dim adp as new sqldataadapter(cmd)
行 25: conn.open()
行 26: Dim dr As sqlDataReader=cmd.ExecuteReader()
行 27: If dr.Read() then

源文件: D:\inetpub\2021web\index\resource\sparkle.aspx    行: 25

堆栈跟踪:


[InvalidOperationException: ConnectionString 属性尚未初始化。]
   System.Data.SqlClient.SqlConnection.PermissionDemand() +6001262
   System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection) +25
   System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +154
   System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions) +21
   System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry) +90
   System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry) +443
   System.Data.SqlClient.SqlConnection.Open() +96
   ASP.resource_sparkle_aspx.page_load(Object sender, EventArgs e) in D:\inetpub\2021web\index\resource\sparkle.aspx:25
   System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +51
   System.Web.UI.Control.OnLoad(EventArgs e) +95
   System.Web.UI.Control.LoadRecursive() +59
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +678


版本信息: Microsoft .NET Framework 版本:4.0.30319; ASP.NET 版本:4.7.4087.0