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From: Cirene on 4 Jul 2008 21:47
Using asp.net membership. My login.aspx page goes to the loginredirect.aspx
page after the user logs in.

For some reason "Membership.GetUser.ProviderUserKey.ToString" gives me this
error:
System.NullReferenceException: Object reference not set to an instance of an
object. at loginredirect.Page_Load(Object sender, EventArgs e)

Any reason why? I should be logged in fine.

Is there another way in which I should get the current users UserId?


From: Tanzim Saqib on 6 Jul 2008 01:31
Membership.GetUser() is definitely null in your case. Meaning that the user
has not actually been logged in. Can't say much since unsure about your
particular scenario.

Tanzim Saqib
W: http://www.TanzimSaqib.com


"Cirene" <cirene(a)nowhere.com> wrote in message
news:#kiVgEk3IHA.4800(a)TK2MSFTNGP02.phx.gbl...
> Using asp.net membership. My login.aspx page goes to the
> loginredirect.aspx page after the user logs in.
>
> For some reason "Membership.GetUser.ProviderUserKey.ToString" gives me
> this error:
> System.NullReferenceException: Object reference not set to an instance of
> an object. at loginredirect.Page_Load(Object sender, EventArgs e)
>
> Any reason why? I should be logged in fine.
>
> Is there another way in which I should get the current users UserId?
>
From: Eliyahu Goldin on 6 Jul 2008 04:45
The authentication principal won't get set until the next request to the
web-server. That's why GetUser returns. But you can use the "UserName"
property of the Login control
within the LoggedIn event to identify the user. With this name, you can use
Membership.GetUser(userName).


--
Eliyahu Goldin,
Software Developer
Microsoft MVP [ASP.NET]
http://msmvps.com/blogs/egoldin
http://usableasp.net


"Cirene" <cirene(a)nowhere.com> wrote in message
news:%23kiVgEk3IHA.4800(a)TK2MSFTNGP02.phx.gbl...
> Using asp.net membership. My login.aspx page goes to the
> loginredirect.aspx page after the user logs in.
>
> For some reason "Membership.GetUser.ProviderUserKey.ToString" gives me
> this error:
> System.NullReferenceException: Object reference not set to an instance of
> an object. at loginredirect.Page_Load(Object sender, EventArgs e)
>
> Any reason why? I should be logged in fine.
>
> Is there another way in which I should get the current users UserId?
>


From: Marc on 6 Jul 2008 14:12
"Cirene" <cirene(a)nowhere.com> wrote in message
news:%23kiVgEk3IHA.4800(a)TK2MSFTNGP02.phx.gbl...
> Using asp.net membership. My login.aspx page goes to the
> loginredirect.aspx page after the user logs in.
>
> For some reason "Membership.GetUser.ProviderUserKey.ToString" gives me
> this error:
> System.NullReferenceException: Object reference not set to an instance of
> an object. at loginredirect.Page_Load(Object sender, EventArgs e)
>
> Any reason why? I should be logged in fine.
>
> Is there another way in which I should get the current users UserId?

I recommend you surround the code with some checks first, like this:

If User.Identity.IsAuthenticated Then Begin
myString := Membership.GetUser().ProviderUserKey.ToString
End Else Begin
Response.Write('User is not logged in.');
Response.End;
End;

{yes, that's Delphi ;-) }

Step through that code in the debugger to find out if it goes down the
"IsAuthenticated " path. If not then you know what the problem is.

Marc


From: Tanzim Saqib on 6 Jul 2008 21:21
I'd prefer the following to make a safer access to ProviderUserKey property:

var user = Membership.GetUser();

if(user == null)
{
// not authenticated, please log in
}
else
{
// play with the currently logged in user.
}

- Tanzim Saqib
http://www.TanzimSaqib.com


"Marc " <RmEaMrOcVE(a)imarc.co.uk> wrote in message
news:ORMXeP53IHA.4332(a)TK2MSFTNGP06.phx.gbl...
> "Cirene" <cirene(a)nowhere.com> wrote in message
> news:%23kiVgEk3IHA.4800(a)TK2MSFTNGP02.phx.gbl...
>> Using asp.net membership. My login.aspx page goes to the
>> loginredirect.aspx page after the user logs in.
>>
>> For some reason "Membership.GetUser.ProviderUserKey.ToString" gives me
>> this error:
>> System.NullReferenceException: Object reference not set to an instance of
>> an object. at loginredirect.Page_Load(Object sender, EventArgs e)
>>
>> Any reason why? I should be logged in fine.
>>
>> Is there another way in which I should get the current users UserId?
>
> I recommend you surround the code with some checks first, like this:
>
> If User.Identity.IsAuthenticated Then Begin
> myString := Membership.GetUser().ProviderUserKey.ToString
> End Else Begin
> Response.Write('User is not logged in.');
> Response.End;
> End;
>
> {yes, that's Delphi ;-) }
>
> Step through that code in the debugger to find out if it goes down the
> "IsAuthenticated " path. If not then you know what the problem is.
>
> Marc
>
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