我正在使用 Entity Framework 5 开发 ASP.NET MVC4 应用程序,并且我使用的是模型优先模式。
但是,如果我使用设计器生成的连接字符串,Simple Membership 将引发以下错误:
......
InnerException: System.InvalidOperationException
HResult=-2146233079
Message=The ASP.NET Simple Membership database could not be initialized. For more information, please see http://go.microsoft.com/fwlink/?LinkId=256588
Source=STD
StackTrace:
at SistemTempahanDewan.Filters.InitializeSimpleMembershipAttribute.SimpleMembershipInitializer..ctor() in c:\Users\Orang\Documents\Visual Studio 2012\Projects\STD\STD\Filters\InitializeSimpleMembershipAttribute.cs:line 45
InnerException: System.ArgumentException
HResult=-2147024809
Message=Unable to find the requested .Net Framework Data Provider. It may not be installed.
Source=System.Data
StackTrace:
at System.Data.Common.DbProviderFactories.GetFactory(String providerInvariantName)
at WebMatrix.Data.DbProviderFactoryWrapper.CreateConnection(String connectionString)
....
设计器生成的连接字符串(不起作用):
<add name="STD" connectionString="metadata=res://*/Models.STD.csdl|res://*/Models.STD.ssdl|res://*/Models.STD.msl;provider=System.Data.SqlClient;provider connection string="data source=.\SQLEXPRESS;initial catalog=STD;integrated security=True;multipleactiveresultsets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
我手动添加的连接字符串(将起作用):
<add name="STD" providerName="System.Data.SqlClient" connectionString="Data Source=.\SQLEXPRESS;Initial Catalog=STD;Integrated Security=True;MultipleActiveResultSets=True" />