Membership.GetUser - getting username via guid

Question

User-603414224 posted

Hello - can anyone spot why the below code does not work, i.e. returnValue is always 'Nothing'? 

 Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
  
        Dim ProvideUserKey As String
        Dim returnValue As MembershipUser
        ProvideUserKey = "02B12A3B-E123-123D-9ADF-8B2E81239680"
        returnValue = Membership.GetUser(ProvideUserKey)

End Sub

Cheers..Marco

Answer 1

User-2074625069 posted

Try this:

Dim providerUserKey As Object = CType("02B12A3B-E123-123D-9ADF-8B2E81239680", Object)
Dim membershipUser As MembershipUser = Membership.GetUser(providerUserKey)

Because you are passing a string to the GetUser method is will use this overload:

Public Shared Function GetUser(ByVal username As String) As System.Web.Security.MembershipUser Member of: System.Web.Security.Membership

Summary:
Gets the information from the data source for the specified membership user.

Parameters:
username: The name of the user to retrieve.

you need to be using this overload:

Public Shared Function GetUser(ByVal providerUserKey As Object) As System.Web.Security.MembershipUser
     Member of: System.Web.Security.Membership
Summary:
Gets the information from the data source for the membership user associated with the specified unique identifier.

Parameters:
providerUserKey: The unique user identifier from the membership data source for the user.

let me know how you get on.

 

Answer 2

User-603414224 posted

Hello Scott,

I can see you have now converted the string into an object so it is in the right format to pass into the getuser overload - thanks for this. When I run the code I get error:

The provider user key supplied is invalid.  It must be of type System.Guid.
Parameter name: providerUserKey

The code on my page is literally as detailed in my original post. I am wondering if I need to make a connection to the DB at any point for the code to work?

Marco (still a newbie!)

Answer 3

User-2074625069 posted

Are you using a Customer Membership Provider if so you will have to write the code to connection to DB but if you are using the default SQLMembership Provider with the Database Schema generated by ASP this will be done for you.

Try this:

Dim membershipUser As MembershipUser = Membership.GetUser(New Guid("02B12A3B-E123-123D-9ADF-8B2E81239680"))

Answer 4

User-603414224 posted

 

Scott, thats done it. Thankyou very much.

Cheers

Marco

Answer 5

User1869991858 posted

 Why are you providing it with a GUID value?