The type or namespace name 'DbContext' could not be found (are you missing a using directive or an assembly reference?) 解决方案: 引用EntityFramework.dll 即可.
“type used in a using statement must be implicitly convertible to 'System.IDisposable'” The type or namespace name 'DbContext' could not be found (are you missing a using directive or an assembly reference?) ...
'HttpResponse' does not contain a definition for 'Cache' and no accessible extension method 'Cache' accepting a first argument of type 'HttpResponse' could be found (are you missing a using directive or an assembly reference?) 'IEnumerable<>' does not contain a definition for '', no extens...
Compiler Error Message: CS0246: The type or namespace name 'xxxxx' could not be found (are you missing a using directive or an assembly reference?) Compiler Error Message: CS1061 computing sum for datatable column of type string Concatenate string and use as variable name Conditionally include...
Beginning with EF 4.1, Microsoft recognized the complexity EF required and simplified access to its functionality by introducing the DbContext API. At the same time, because not everyone wants to use a designer or generated code, it provided the ability to build models with your own code. Along...
[23:08:24][Csc] App_Start\AuthConfig.cs(3, 19): error CS0234: The type or namespace name 'Entity' does not exist in the namespace 'System.Data' (are you missing an assembly reference?)ive verified the references are in the packages files in my C:\TeamCity\buildAge...
The Entity Framework (EF) ObjectContext and DbContext maintain state information about entities they’re managing. But once the context goes out of scope, that state information is gone. This type of caching is referred to as first-level caching and is only available for the lifetime of a tr...
using namespace Oracle.ManagedDataAccess.Client [Oracle.ManagedDataAccess.Client.OracleConfiguration]::SqlNetAllowedLogonVersionClient = OracleAllowedLogonVersionClient.Version11; Scaffold-DbContext ... (which gives Unable to find type [Oracle.EntityFramework.Core.OracleConfiguration] error) I'm not ev...
In Identity.API, I deleted the migrations folder and then use "Add-Migration Initial" command want to generate migrations ,an error ocurred, the error is "unable to create an object of type 'ApplicationDbContext'. For the different patte...
(Name ="Release Date")] [DataType(DataType.Date)] [DisplayFormat(DataFormatString ="{0:yyyy-MM-dd}", ApplyFormatInEditMode = true)]publicDateTime ReleaseDate {get;set; }publicstringGenre {get;set; }publicdecimalPrice {get;set; } }publicclassMovieDBContext:DbContext{publicD...