Web Service And Membership - Get UserID Of User When Not Logged In
Jul 21, 2011
I am creating a few web services for use with a mobile application. My current site uses asp .net membership and one of the web services will validate username and password.
In the web service I get passed uname and pword and just use
Code:
If Membership.ValidateUser(username, password) = True Then
Return "True"
Else
Return "false"
End If
Is there a similar way to get the userid without logging the user on or do I need to create a Stored procedure?
i am trying to show a list of users of my application "school", when admin logs in then he can view all the users in list but when school principals logins, he should get only users of his school, So i thought to get the current loggedIn userId first and then by that userId i'll get schoolId since userId is foreign key in school table...once i'll get the schoolId i can show the members of that school.
But my problem is how to get the UserID of currently loggedIn. I'm using MVC 1.0 Asp.Net -- "Membership" if my logic above is wrong then tell me the alternate good idea, so that principal can see only his users list.
How can I get the exact ID of a user that is logged into a site?
I'm using the login and registration controls created by Visual Studio 2010, in the database the unique identifier is in this 28e8957e-00b8-4e75-bec9-2b90e640962d for example how can I return the exact one to be used in an SQL command for example?
I have a gridview nested inside a Loggedin Template so when a user logins it will display their own details (name, address etc) When i attempt to run this i get this error message:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
I have below code to display "list of all the online users" inside listBox using Membership function.
Code:
protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { MembershipUserCollection allUser = Membership.GetAllUsers(); // to get all the users List<MembershipUser> onlineUsers = new List<MembershipUser>(); //creating list of online users foreach (MembershipUser user in allUser)
[Code] ....
I want to remove that user from the list of online users, who himself has logged in. Example: if I had logged-in with UserName: Admin, then this Admin should not show to me in the list of "online users"
Tried below Code but not working:
protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { MembershipUserCollection allUser = Membership.GetAllUsers(); // to get all the users List<MembershipUser> onlineUsers = new List<MembershipUser>(); //creating list of online users MembershipUser m_user = Membership.GetUser(); //to get self logged-in user
I am having an issue, with the membership and form authentication. I am having a problem where when an logged in user types a url they can see the content of pages they're not suppose to. When the user tries to click on the screen or any ajax fires they are redirected to the main page. What is going on? I have all the items setup in the webconfig properly just wondering what is happening. Also I don't want to use a redirect solution for each page since that is what I thought webconfig was setup for.
I need to insert a declaration in the codebehind function below that will make the variable "UserId" equal to the "logged-in user". In what way do I need to change the code below (elsewhere in the project, I successfully make reference to basically the same code and make the UserId equal to logged-in user by using this handler expression inside an image control: ImageUrl ='<%# Eval("UserId","Image.aspx?UserId={0}")%>'...But in the case below, the function is not fired by this expression, but rather by CustomValidator).
Sub ValidateImage(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs) If Request.QueryString("UserId") IsNot Nothing Then ' Get the connection string from Web.config. Using conn As New SqlConnection(ConfigurationManager.ConnectionStrings("MyDatabaseConnectionString").ToString()) ' Create a command object. Dim cmd As New SqlCommand() ' Assign the connection to the command. cmd.Connection = conn ' Appendy the parameter to the SqlCommand and set value. cmd.Parameters.Add("@UserId", SqlDbType.UniqueIdentifier).Value = Guid.Parse(Request.QueryString("UserId")) ' Set the command text ' SQL statement or the name of the stored procedure. cmd.CommandText = "SELECT Avatar FROM aspnet_Membership WHERE UserId = @UserId AND Avatar IS NOT NULL" ' Set the command type ' CommandType.Text for ordinary SQL statements; ' CommandType.StoredProcedure for stored procedures. cmd.CommandType = CommandType.Text ' Open the connection. conn.Open() ' Convert the returned result to a bytes array. Dim bytes As Byte() = DirectCast(cmd.ExecuteScalar(), Byte()) If bytes IsNot Nothing Then ' Set the HTTP MIME type of the output stream. Response.ContentType = "image/jpeg" ' Write a string of Binary characters to the HTTP ' output stream. Response.BinaryWrite(bytes) ' Send all currently buffered output to the client. Response.End() Else args.IsValid = False End If End Using End If End Sub
I'm trying to get the current logged in UserId Value, using this code
[code]...
But, I getting an error (NullReferenceException), I did set a url authorization on the page that i try to get the logged in user information, witch is info.aspx, and I made the login.aspx control to be redirected to the info.aspx after the login process, But the info.aspx only shows me (access in denied), how can i make this page knows that i am already logged in?
So I have been trying to pull the userid of whoever is currently logged in and match it to another table that it is a fk in. I have some code that should work but I get an error that says specified cast is not valid in line 10.
I have seen a lot of question asking about known user name and how to retrieve UserId accordingly. How about the other way around?
For some reason I have UserId, but I don't want to include aspnet_User table into my data entities. Is there any way I can retrieve the user name without querying against aspnet_User table?
i'm new to membership. i have a table named contact, with a field, userId that must get its data from the membership users table. so when a user is created i have to get the userId from membership users table. how can i do that?
i'm using asp.net membership for logins/registeration. i have a bookings table with few fields, lets say first_name, last_name, product_name and userID.when the user submits 'buy' i want to get the userID from the membership user tablem that way i know whose made the booking. i'll have these two tables (bookings & user tables) linkedbut how do i get userID from the user table to pass to bookings table? i checked the membership class and it gives options like-Membership.GetUser(), Membership.GetUserNameByEmail(), Membership.GetAllUsers() etcothing for getting user id. user id is stored like this: c1c91682-449f-45dd-b20e-3dac5315bba4
There are lots of posts about this issue but I can't work out the answers as most of them are for C# or similar. I'm trying to automatically insert the UserId generated by Membership into a custom table. I have membership working correctly, as well as the custom table (I'm able to insert other things from the registration form). But I can't get it to extract the generated UserId and insert it into the custom table. Here's my code:
[Code]....
As you can see I've experimented with the parameters for inserting the record, but that doesn't work (I get an error about ProviderKey not being a part of system.web.security.membershipuser).
I have a web application which uses a session variable to store the logged in userid. If no user is logged in, of course this variable will be empty and the contents displayed on my website are meant for guests. If there is a user logged in, the user specific controls/access/links will then be a displayed.
I am now having issues with my hosting where on shared application pool, the worker recycle is triggered every 90 minutes, this will clear sessions causing all my users to be logged out. I opted for a dedicated application pool, which got worse because I am only allocated 50MB memory limit and if this is reached, the worker recycle is triggered and I lose my sessions again. I have tried as much as possible optimization techniques, e.g. dispose where possible, close connections, disable viewstate for static controls etc but my memory per instance keeps building up from page to page without any signs of improvement. I don't use loops nor store huge objects like bitmaps etc but my sessions are now gone even faster than 90 minutes in shared application pool before.
I have considered using SQL Session State but there isn't a simple guide on using this with MySQL. I am getting desperate and considering using a public variable, a string as a replacement to store logged in user id instead of in a session variable. I am pretty sure this will solve my issue with sessions being recycled but are there any negative consequences of doing this? One problem I can think of is if the user closes the browser, the system will never know that the user is now logged out and this public variable should be nothing. In this scenario, will the GC eventually clear this abandoned public variable.
We have got two distinct lists of users that we need to power logged in access to sections of our site. These lists can't be combined, as one is synced daily to an externally hosted data source, and both tables have to be 100% the same. We have set up two Membership providers onto the site, but my question is, is it possible to allow both to be logged in at the same time?
The issue I find is that HttpContext.Current.User.identity.name contains the username of the last successful logon.
I used [URL] as a guide and have something configured to show me the users which are logged into the system. This uses the aspnet_Users.LastActivityDate column to see when someone last did something on the system. It also uses the userIsOnlineTimeWindow within the web.config to determine whether a user is online or not.
But because of this userIsOnlineTimeWindow limitation of .NET, even when someone logs out of the system or closes their browser window, the system still sees them as being online. Also, if they are on a page and don't do anything for 10 minutes, the system will show them offline until they refresh their page or go to another page. know of a better, more real-time way to tracking users which are logged in, logged out, etc?
I don't want to wait 10 minutes for the system to show that a user is offline and also if there's 10 minutes of inactivity, it shows them being offline.
I Have an asp.net application in which i have used asp.net membership for authentication. Wat i need is , i need to check whether user is already logged inn. If user logged in , in a computer ... At the same time same user logged inn from another computer , then for the second time logged inn , a message should be displayed Already logged inn
I am writing two ASP.NET apps. One is a web service that provides xml data and the other is a web client that will use the service to display and manipulate data. I would like for the web service to do the membership authentication and authorization. Is there any way to simply point the login controls in my client application to the web service instead of to a database. I assume I would have to provide the necesarry methods in my web service interface, which would then use the membership provider database I created and pass the results back through to the client.
Is this possible? I have seen many articles on security provisioin from a web service but none has really been what I am looking for. I was hoping that, since my service and my client are both written in ASP.NET, there might be some built functionality that would benefit me.
Our application lets the administrator create new users. Since the administrator is logged in, I have set Logincreateduser = false so that the administrator is not logged out even after creating the new user.
The problem is :I need the userid of the newly created user to store additional details of the user in another database table. I see that i can get the username using Createuserwizard1.username; but how do I get the userID?
If I log in different membership provider, and go to page that contains following code, I get NullReferenceException error. User will be authenticated even if I loggin to different membership. Is there any ways to prevent from getting error??
If User.Identity.IsAuthenticated Then Dim UserIdentity As MembershipUser = Membership.Providers("CustMembershipProvider").GetUser(HttpContext.Current.User.Identity.Name, False) Dim currentUserID As String = UserIdentity.ProviderUserKey.ToString()
I have an ASP.NET VB website in which I am using the Membership functionality to authenticate users. I am doing this through the Login control on the HTML page. I have working that it will authenticate the user and then opens a welcome screen in which I have a button they can push to open a Reports.aspx page. On that page I have a dropdown box that is being populated from a datasource connection query to my SQL Server database table. It is a hard coded query but want it to query the table off the username text value that the user provided on the login (i.e. select <something> from inventory where username = <username>). I have not behind code but only HTML at this point. Here it is ...Â
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Login.aspx.vb" Inherits="Login" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server">
[Code] .....
Here is the Reports form that has the dropdown on it:
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Report.aspx.vb" Inherits="Report" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server">
