Change ProfileProvider connectionstring on the fly - asp.net-membership

Question

If you read my previous post, you know I'm able to use a custom MembershipProvider and RoleProvider to use different datasource on each call on the fly. I want to to the same thing with Profile.
My profile's propteries are not store in the web config but in a custom class like this :
public class AccountProfile : ProfileBase
{
public override SettingsProviderCollection Providers
{
get
{
return base.Providers;
}
}
static public AccountProfile GetUserProfile(string userName)
{
return (AccountProfile)(ProfileBase.Create(userName));
}
[SettingsAllowAnonymous(false)]
public string MobilePhone
{
get { return ((string)(base["MobilePhone"])); }
set { base["MobilePhone"] = value; Save(); }
}
}
also like for the Membership and RoleProvider I have a class like this :
public class MyProfileProvider : SqlProfileProvider
{
public MyProfileProvider()
{
}
public MyProfileProvider(string SubDomainInstanceName)
{
string configPath = "~/web.config";
Configuration config = WebConfigurationManager.OpenWebConfiguration(configPath);
ProfileSection section = (ProfileSection)config.GetSection("system.web/profile");
ProviderSettingsCollection settings = section.Providers;
NameValueCollection membershipParams = settings[section.DefaultProvider].Parameters;
Initialize(section.DefaultProvider, membershipParams);
}
public override void Initialize(string name, System.Collections.Specialized.NameValueCollection config)
{
base.Initialize(name, config);
if (!string.IsNullOrEmpty(instance))
{
// Update the private connection string field in the base class.
string connectionString = "";//my connection
// Set private property of Membership provider.
FieldInfo connectionStringField = GetType().BaseType.GetField("_sqlConnectionString", BindingFlags.Instance | BindingFlags.NonPublic);
connectionStringField.SetValue(this, connectionString);
}
}
}
the difference betwen my CustomProfileProvider is that I can't use itself because the "create" method is in the ProfileBase. And with ILSpy I have seen a singleton and I wonder if it's not the source of the problem.
The issue is that I only pass one time in the initialize method. I can't do another time to change the datasource.
I hope you can understand my poor english and can help me.

Answer 1

I find a - bad - solution
In the CustomProfileBase class I add some code to change the connectionstring of the singleton instance of the class.
public class AccountProfile : ProfileBase
{
string connectionString = myconnstring;
//1st call not really use but allow to get an instance of my custom AccountProfile
AccountProfile test = (AccountProfile)(ProfileBase.Create(userName));
//change connectionstring oh the instance
FieldInfo connectionStringField = test.Providers["AspNetSqlProfileProvider"].GetType().BaseType.GetField("_sqlConnectionString", System.Reflection.BindingFlags.Instance | System.Reflection.BindingFlags.NonPublic);
connectionStringField.SetValue(test.Providers["AspNetSqlProfileProvider"], connectionString);
//new call on the good datasource
return (AccountProfile)AccountProfile.Create(userName);
}
It's not the most beautifull solution by it's work.
What do you think of t ?