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置标出错:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
- 通道式辐射监测系统案例分享
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Whir.Repository.Database.OpenSharedConnection()
at Whir.Repository.Database.d__65`1.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at Whir.Repository.Database.SingleOrDefault[T](String sql, Object[] args)
at Whir.Repository.Database.SingleOrDefault[T](Object primaryKey)
at Whir.Service.DbBase`1.SingleOrDefault[T](Object primaryKey) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\DbBase.cs:line 531
at Whir.Service.ColumnService.GetColumnListLink(Int32 columnId, Boolean isAspx, Int32 urlType) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\Developer\ColumnService.cs:line 1874
at Whir.Service.ColumnService.GetColumnListLink(Int32 columnId, Int32 urlType) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\Developer\ColumnService.cs:line 1859
at Whir.Label.Dynamic.Category.DataContainer.CategoryPageUrl(String urlParm) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Label\Dynamic\Category.cs:line 253
at ASP.cn_include_top_ascx.__DataBind__control24(Object sender, EventArgs e) in c:\webhosting\data\cn\include\top.ascx:line 113
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at whir_system_UserControl_LabelControl_Category.Bind() in c:\webhosting\data\Whir_System\UserControl\LabelControl\Category.ascx.cs:line 132
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新闻中心
A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
at System.Data.SqlClient.SqlConnection.Open()
at Whir.Repository.Database.OpenSharedConnection()
at Whir.Repository.Database.d__65`1.MoveNext()
at System.Linq.Enumerable.SingleOrDefault[TSource](IEnumerable`1 source)
at Whir.Repository.Database.SingleOrDefault[T](String sql, Object[] args)
at Whir.Repository.Database.SingleOrDefault[T](Object primaryKey)
at Whir.Service.DbBase`1.SingleOrDefault[T](Object primaryKey) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\DbBase.cs:line 531
at Whir.Service.ColumnService.GetColumnListLink(Int32 columnId, Boolean isAspx, Int32 urlType) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\Developer\ColumnService.cs:line 1874
at Whir.Service.ColumnService.GetColumnListLink(Int32 columnId, Int32 urlType) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Service\Developer\ColumnService.cs:line 1859
at Whir.Label.Dynamic.Category.DataContainer.CategoryPageUrl(String urlParm) in E:\chenxz\05.ezEIP\ezEipV5.0\tags\V5.3.0(0649)\Whir.Label\Dynamic\Category.cs:line 255
at ASP.cn_include_top_ascx.__DataBind__control24(Object sender, EventArgs e) in c:\webhosting\data\cn\include\top.ascx:line 113
at System.Web.UI.Control.OnDataBinding(EventArgs e)
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at System.Web.UI.Control.DataBindChildren()
at System.Web.UI.Control.DataBind(Boolean raiseOnDataBinding)
at System.Web.UI.Control.DataBind()
at whir_system_UserControl_LabelControl_Category.Bind() in c:\webhosting\data\Whir_System\UserControl\LabelControl\Category.ascx.cs:line 132
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置标出错:Object reference not set to an instance of an object.
置标出错:A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)
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