我正在使用Entity Framework 5开发ASP.NET MVC4应用程序,我正在使用Model First模式.
但是,如果我使用设计器生成的连接字符串,则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)
....
设计者生成的连接字符串(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" />
连接字符串我手动添加(将工作)：
<add name="STD" providerName="System.Data.sqlClient" connectionString="Data Source=.\sqlEXPRESS;Initial Catalog=STD;Integrated Security=True;MultipleActiveResultSets=True" />
解决方法
是的,SimpleMembership仅适用于sql Server连接字符串,因此您需要在web.config中使用此类条目.不理想,但它的工作原理就像你说的那样……
这可能是你的答案：Using SimpleMembership with EF model-first
Jon Galloway的文章是关于SimpleMembership信息的绝佳资源,如果你还没有看到它：http://weblogs.asp.net/jgalloway/archive/2012/08/29/simplemembership-membership-providers-universal-providers-and-the-new-asp-net-4-5-web-forms-and-asp-net-mvc-4-templates.aspx
