Здравствуйте!
у меня такая проблема:
webconfig:
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3.
4.
<connectionStrings>
<add name="base1" connectionString="Data Source=.\SQLExpress;Integrated Security=True;User Instance=True; 
 

AttachDBFilename=|DataDirectory|base1.MDF"/>
</connectionStrings>
код:
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ConnectionStringSettings conn1 = ConfigurationManager.ConnectionStrings["base1"];
DbConnection connection1 = new SqlConnection(conn1.ConnectionString); // вот тут ошибка!!!!!!!!!!!!!!!!
вроде все очень просто и работало в миллионе других случаев, а сейчас выдает ошибку:
===================================================================================
Object reference not set to an instance of an object.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 580:
Line 581: ConnectionStringSettings conn1 = ConfigurationManager.ConnectionStrings["base1"];
Line 582: DbConnection connection1 = new SqlConnection(conn1.ConnectionString);
Line 583:
Line 584:
Source File: C:\_prj1_new\m8_new\m8_new\Models\assist.cs Line: 582
Stack Trace:
[NullReferenceException: Object reference not set to an instance of an object.]
m8_project.Models.assist.update_insert_ALL(List`1 name_list, List`1 value_list, List`1 type_list, List`1 name_list_where, List`1 value_list_where, List`1 type_list_where, String command_text, String table_name, String update_insert_select, String base_name) in C:\_prj1_new\m8_new\m8_new\Models\assist.cs:582
m8_project.Models.M8.m8_iu.update_status(Int32 seller, String base_name) in C:\_prj1_new\m8_new\m8_new\Models\M8\m8_iu.cs:46
m8_project.Models.M8.m8_new.fill_sparts_list_VERY_NEW(String id) in C:\_prj1_new\m8_new\m8_new\Models\M8\m8_new.cs:35
m8_project.Controllers.m8Controller.fill_sparts_list_word_counter(String id) in C:\_prj1_new\m8_new\m8_new\Controllers\m8Controller.cs:110
lambda_method(Closure , ControllerBase , Object[] ) +108
System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) +17
System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +205
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +27
System.Web.Mvc.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() +55
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) +263
System.Web.Mvc.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() +19
System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +191
System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName) +343
System.Web.Mvc.Controller.ExecuteCore() +116
System.Web.Mvc.ControllerBase.Execute(RequestContext requestContext) +97
System.Web.Mvc.ControllerBase.System.Web.Mvc.IController.Execute(RequestContext requestContext) +10
System.Web.Mvc.<>c__DisplayClassb.<BeginProcessRequest>b__5() +37
System.Web.Mvc.Async.<>c__DisplayClass1.<MakeVoidDelegate>b__0() +21
System.Web.Mvc.Async.<>c__DisplayClass8`1.<BeginSynchronous>b__7(IAsyncResult _) +12
System.Web.Mvc.Async.WrappedAsyncResult`1.End() +62
System.Web.Mvc.<>c__DisplayClasse.<EndProcessRequest>b__d() +50
System.Web.Mvc.SecurityUtil.<GetCallInAppTrustThunk>b__0(Action f) +7
System.Web.Mvc.SecurityUtil.ProcessInApplicationTrust(Action action) +22
System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +60
System.Web.Mvc.MvcHandler.System.Web.IHttpAsyncHandler.EndProcessRequest(IAsyncResult result) +9
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +8967885
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +184
