Using SimpleMembership with EF model-first

Question

Can SimpleMembership be used with EF model-first? When I try it, I get \"Unable to find the requested .NET Framework Data Provider\" when

Answer 1

this problem caused by WebSecurity.InitializeDatabaseConnection can't use connection string with System.Data.EntityClient provider name.

providing dual connection string isn't sound good, so you can generate the connection string for EF model first in the constructor in the partial class.

the code is look like bellow

public partial class MyDataContext 
{
    private static string GenerateConnectionString(string connectionString)
    {
        var cs = System.Configuration.ConfigurationManager
                     .ConnectionStrings[connectionString];

        SqlConnectionStringBuilder sb = 
             new SqlConnectionStringBuilder(cs.ConnectionString);
        EntityConnectionStringBuilder builder = 
             new EntityConnectionStringBuilder();
        builder.Provider = cs.ProviderName;
        builder.ProviderConnectionString = sb.ConnectionString;
        builder.Metadata = "res://*/MyDataContext.csdl|" +
              "res://*/MyDataContext.ssdl|res://*/MyDataContext.msl";
        return builder.ToString();
    }

    public MyDataContext(string connectionName) : 
          base(GenerateConnectionString(connectionName)) { }
}

with this trick you can use single connection string on your web config, but one problem you can't use default constructor on your datacontext, instead you should seed connection string name everywhere when you instantiate the datacontext. but it is not a big problem when you use dependency injection pattern.