User Controls :: Check Whether User Is Valid And Authenticated Without Using Session?

Feb 17, 2014

How to Check whether user is valid and authenticated without using Session in ASP.Net ....

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Security :: Dynamically Create Membership User And Check If User Name Is Valid Or Used?

Jul 25, 2010

I am createing user dynamially with the below code; string MyPassword = Membership.GeneratePassword(8,0).ToString(); Membership.CreateUser(TextBox7.Text, MyPassword, TextBox8.Text); but before I start creating, I would like to check if the user name is used before or not.

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How To Check User Is Authenticated While Using Forms Authentication

Mar 10, 2011

How to check if user is authenticated while using Forms Authentication ..?

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How To Use Session Variable To Display User Information After Authenticated Login

Dec 18, 2010

How can I use session variable to display user information after authenticated login like Address: 37, kings Road. Position: Secretary base on User ID

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Session Expires And User Is No Longer Valid?

Aug 3, 2010

I cache information about the currently logged in user in the session. This info lazy loads whenever a CurrentUser property on my global application class is used. It does this by calling GetUser() on my custom implementation of MembershipProvider, which either loads the user up from the session, or loads the user from the DB and throws the user object in the session.

How should I handle this scenario?

User logs in. Administrator deletes user (or deactivates...the point is they can't log in any more). User's session expires. User navigates to a page or makes a request, or whatever.

Currently if this scenario occurs, NullReferenceExceptions are thrown all over the place, because the ASP .NET framework calls GetUser() which returns nothing because it can't find the user in the database (and there's nothing in the session because it expired).

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Valid User Session Variable Not Found - Two Identical Error Messages

Apr 8, 2016

I am getting two identical errors message when I view my Web page in my browser:

Valid User Session Variable Not Found: System.NullReferenceException for this line:

Response.Write(Session("ValidUser").ToString & "<br />") <----------

and the same error for this line:

Response.Write(Session("strEmail").ToString) <-----------

This is the code in that page:

Protected Sub Page_Load(sender As Object, e As System.EventArgs) Handles Me.Load
Response.Write(Session("ValidUser").ToString & "<br />")
Catch ex As System.Exception
Response.Write("Valid User Session Variable Not Found: " & ex.ToString & "<br />")
End Try

[Code] .....

This the page that users are redirected to after logging on and, after verifying their credentials at the log-on stage, should show 'Hello, Welcome to my website'.

Do these errors mean that the user cannot be validated in the database?

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Web Forms :: Web Parts And Anonymous User And Authenticated User Is Displayed Differently?

Mar 21, 2011

the Web Part for anonymous user and authenticated user is displayed differently. I faced this problem twise. First time when used Silverlight control in the Web Part and second time when used devexpress control in the Web Part. In both cases problem was with displaying for anonymous user. Silverlight control didn't display. Devexpress control lost it's styles. Both controls had properties that pointed to files. Silverlight control property pointed to the XAP file, and Devexpress control property pointed to the CSS file. It seems to me, that for anonymous user the Web Part cannot find this path or doesn't allow to link to other files.

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Security :: Getting User Name Of Authenticated User In Session_Start Of Global?

Jan 6, 2011

I am using form authentication in my website. I have a scenario wherein the user is authenticated but the session has timed out. So, i would like to initialize some session variables in Session_Start of Global.asax (First i check if Request.IsAuthenticated=True). For that i required the name of the user who authenticated. On .aspx pages we can get it using Page.User.Identity.Name but how to get it in global.asax page.

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User Controls :: How To Check If User In User Account Table Is In Another Table Called UserFollow

Apr 27, 2016

I want to check if a user in User table is found either in UserName Column or in FriendUserName Column in UserFollow table and if yes display lable found, But if no display lable notfound. This code will be excuted onse a user logs in the connection code

protected void Page_Load(object sender, EventArgs e)
if (Session["UserName"] != null && Session["UserName"].ToString() != string.Empty)
string userName = Session["UserName"].ToString();
if (!this.IsPostBack)


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Check Whether Session Is Valid?

Apr 8, 2010

how to check whether users is authenticated and session is valid on pages after say 30 mins.

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User Controls :: How To Insert Time Of Session End When User Closes The Browser

Jan 14, 2014

I have written a SP which maintains users log in and log out history,it works fine when any user logs in or clicks on log out, problem is that as per need its not to allowed  to keep the screen idle for 1 minute or more then in the log out column Null value is passed.


Create proc usp_trackuserlogindetails
@username varchar(50) = null,
@command int = 0
if(@command = 0)
insert into userlog (USERNAME,LOGIN,LOGOUT) values (@username,Getdate(),Null)

[Code] ....

Here when user manually clicks the log out button then 1(table above) is the output.

When user leaves the screen idle then after 1 minute the page goes to the Login.aspx page if the user tries to do something on the current page,here 2(table above) is the output can i store some hard core value instead of Null like Session expire or the exact session expires time.

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User Controls :: Automatically Reset User Session Without Showing Any Message When Using Master Page

May 7, 2015

URL.... Still there will be need of url in ajax method if i put javascript in site.master.cs . As what i have understood from  that mysite.master.cs will be like this :

protected void Page_Load(object sender, EventArgs e) {
try {
if (Session["Prefix"].ToString().Trim() == "sys_admin") {
UserNameMasterLabel.Text = Session["UserName"].ToString().Trim() + " (ADMIN)";


And site.master will be like this :

And I have to put next method in DailyLog.aspx page ? like this

System.Web.Services.WebMethod(EnableSession = true)]
public static int RefreshSession() {
HttpContext.Current.Session["Name"] = "BSD";
Configuration config = WebConfigurationManager.OpenWebConfiguration("~/Web.Config");
SessionStateSection section = (SessionStateSection)config.GetSection("system.web/sessionState");
int timeout = (int)section.Timeout.TotalMinutes * 1000 * 60;
return timeout;

But I have several pages in my website , by doing the above story will it work for Builder.aspx ? or any other page rather than dailylog.aspx ?

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User Controls :: Session Should Not Expire Until User Logs Out

Apr 23, 2014

how to maintain the session that doesn't expire unless and until user logout. 

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User Controls :: Automatically Log Out User When Session Ends

Mar 3, 2014

How to automatically log out after 15 mins by using ....

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User Authenticated Or Not In Other Modules

Mar 2, 2010

protected void Login1_LoggedIn(object sender, EventArgs e)
User.SetUser(Login1.UserName // and what is user ID ?

and how to check in other module if user authenticated or not?

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C# - Identify Authenticated User In WCF?

May 19, 2010

I have a WCF service that will be using basic authentication and would like to be able identify "who" is trying to use the service. I know that the HttpContext.Current is NULL and in the WCF service, but do not know what the alternative is to get the username.

For the website, I can use:

userName = HttpContext.Current.Request.ServerVariables["LOGON_USER"];

How do I get userName in the WCF Service?

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Redirecting To Page If User Is Not Authenticated?

Mar 3, 2010

I have created a website which has Secure folder in which i have got a form which only "admin role" users can see. Now that form will appear if login is successful and it works great, if password or username is wrong then again the loginForm will appear which works great too.

Now the problem is if the users which are not in "admin role" enter the user name and password correctly, instead of coming back to the login page and showing them the "Not Authenticated" message, it gives me an error that myWebsite/login.aspx is not found. I think this is because the name for my login page is "AdminLoginPage.aspx" and which is not found and hence it shows me the error. I dont know where to change the login Page name to "AdminLoginPage.aspx"

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Security :: Want To Pick Up The Authenticated User Name?

Mar 29, 2010

I want to have my code fetch the authenticated user name that is running my code. There's a line or two of code that will accomplish this and I had it but I've misplaced it.

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Security :: How To Get Information Of The Authenticated User

Oct 8, 2010

I have a web application on IIS that will authenticate using windows authentication (Active Directory). So when they access the application http://iisserver/webappname/ it ask for username pwd and domain. (currently working) How can I get information of the authenticated user in the web app through c#?

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Want To Retrieve The Authenticated User Info?

Jan 7, 2011

I am trying to integrate my 4.0(non MVC) website with facebook. I want to retrive the authenticated user info.The samples listed in facebooksdk is based on MVC. i tried to implement it in my website, but getting errors. i am struck.If anyone implemented the facebook connect logic and retrieved the user information using facebook-c#-sdk, please help me how to do this.I tried the same using facebooktoolkit, and i am able to retrive the user info. but the toolkit is having issues with .net 4.0.

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Getting Authenticated User's Username On A Subdomain

Mar 21, 2011

I have Forms authentication setup for an ASP.NET 4.0 application on - we'll call it MainApp. I also have an ASP.NET 4.0 app running on which (let's call it SubApp) doesn't have access to the main app.

Now, SubApp needs to figure out usernames of users who first logged in to the MainApp and then came to SubApp. I thought that it's enough for those two apps to have the same machine keys and for the SubApp to specify in web.config, so it could read the MainApp's authentication cookie and get username from it.

I did a simple test and when I try to hit some page on SubApp it keeps redirecting to - which doesn't even exist not specified in web.config. Apparently my approach doesn't work, though I don't understand why - main domain's cookie should be accessible on a subdomain, right?

This is how I configure authentication in SubApp:

<authentication mode="Forms">
<forms domain=""/>
<allow users="*"/>

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User Controls :: Validate Session Set After Login And Redirect User Back To Login Page If It Is NULL

Apr 26, 2013

I have made a web page in which there is login screen when user login it goes next page but my problem is if i directly enter the url of that page it open. I want it should not open unless the user log in... 

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WCF / ASMX :: WCF Storing Authenticated User Information?

Jan 15, 2011

I am building a RESTful service using WCF. I basically want to save information about a user when they authenticate to the WCF service. For example I want to save their first name, last name, account number , and password in order to access the information in other requests in the same session. Since this information is sensitive I can not store it in a cookie.

I don't want to use session state because I plan to run this WCF as a Windows Service. Is there something (class, Assembly) I can use that can save user information and retrieve it per request or do I have to create a custom solution that will create an entry in a database every time a client authenticates to the WCF service.

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Detect If User Is Authenticated With Active Directory?

May 21, 2010

We have a SSO solution with ADFS for logging into our web app, we also have standard setup that uses authentication with our database. I want to setup a solution that allows for both. So now I am trying to figure out, is there any way for ASP.NET to detect if a user is authenticated with Active Directory so I could do this on the fly? If user is logged in through AD, send through ADFS, else, show login screen. I also realize that this may not work if they are setup to use forms based authentication only after the ADFS process is started.

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Security :: How To Control The Number Of Authenticated User

Dec 16, 2010

I got only one ideas to control with the session. When user log into the master page, I insert the current login user and session ID and active status to the SQL table. if user logout manually or close the browser or session expired, I want to change the inactive status. So I can check how many active user are there and the system can prompt the required info to the user. But now, I can't find the soultion to change the inactive

status in above condition.

That doesn't seem right to me. I m sure I 'm making incorrect assumption about this matter.

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