Best way to get user id using EF and storing for the application life span

Question

User36582938 posted

I am tyring to over come a issue with using session by having a property to store the providerkey i seen examples of this but I am using form authentication so i dont no if i can use that

 Guid _UserID;
public Guid UserID
 {
	get
	{
		MembershipUser user = Membership.GetUser(HttpContext.Current.User.Identity.Name);
		Guid guid;
		Debug.Assert(user.ProviderUserKey != null, "user.ProviderUserKey != null");
		guid = (Guid)user.ProviderUserKey;

		return guid;
	}
	set
{
		this._UserID = value;
}

The erorr I am getting is the following

An exception of type 'System.NullReferenceException' occurred in SkyLarkArenaCms.dll but was not handled in user code

Additional information: Object reference not set to an instance of an object.

I would reference the property via the master page so that all the child pages can use it so then in my child page i just do this for example to get userId

lblCount.Text = _dal.GetUserMessageCount(UserID).ToString();
lblminiCount.Text = lblCount.Text;
       

Now I have checked the user does have a userID GUID and its not null or blank.

<authentication mode="Forms">
  <forms loginUrl="~/BackDoorLogin.aspx"></forms>
</authentication>

What is the best method to handle the userId I have seen the issues with the session and now want to solve it with a 2015 solution allot of the old ways our outdated I am using asp.net webforms and version .net 4.5.2

I have reigsterd my sql tables with aspnetreg_iis so i have my aspnetuser table etc in sql server 2008 r2 thanks for in advance for your support and help

Answer 1

User753101303 posted

Hi,

On which line does it happen? You have to check all objects that are used on the line it happens. You are 100% sure user or even lblCount is not null etc...?

Answer 2

User36582938 posted

its on this line does this work when you have forms authtentication ?

MembershipUser user = Membership.GetUser(HttpContext.Current.User.Identity.Name);
		

Answer 3

User20640938 posted

Wow, that's amazing thank you sir.

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