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  4. stop login if user has already loggedin with same userid

stop login if user has already loggedin with same userid

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  • A Abhijit Jana

    Brij wrote:

    Its better I think if a user has logged in from one pc then dont allow from other pc , just show a message a user has already loggedin.

    Yes I am agree with you brij. Other wise its unnecessary hitting of DB on every post back which impact badly on performance.

    Cheers ! Abhijit Jana | MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

    V Offline
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    vikas shukla
    wrote on last edited by
    #5

    hi sir, if you never mind sir.i want your yahoo id thank you very much sir.

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    • A Abhijit Jana

      Brij wrote:

      Its better I think if a user has logged in from one pc then dont allow from other pc , just show a message a user has already loggedin.

      Yes I am agree with you brij. Other wise its unnecessary hitting of DB on every post back which impact badly on performance.

      Cheers ! Abhijit Jana | MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

      B Offline
      B Offline
      Brij
      wrote on last edited by
      #6

      Yes. Its better

      Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

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      • B Brij

        Yes. Its better

        Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

        A Offline
        A Offline
        Abhijit Jana
        wrote on last edited by
        #7

        And I think this is quite well known problem for us ... ;) .. Account Locked : :laugh:

        Cheers ! Abhijit Jana | MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

        B 1 Reply Last reply
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        • B Brij

          Yes. Its better

          Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

          V Offline
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          vikas shukla
          wrote on last edited by
          #8

          yes sir, you both are absolutely right.but please suggest me where i am wrong in my second post. and give your suggestion for this. thanks

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          • V vikas shukla

            thank u sir, i was doing the same as you are saying.and i am entering browser name also in my loginentry table(temp table). so that suppose if user login from ie browser and now he opens new ie and enter login page of application then user should not have login page because user has logged in once and it shows direct user home page.but if he enter login url in mozilla or any other browser then he should have login page. but at the same time if i am opening my login page from another system then again user home page is displaying.but it should be login page.

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            A Offline
            Abhijit Jana
            wrote on last edited by
            #9

            Are you checking session variable properly ?

            Cheers ! Abhijit Jana | MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

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            • A Abhijit Jana

              Are you checking session variable properly ?

              Cheers ! Abhijit Jana | MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

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              vikas shukla
              wrote on last edited by
              #10

              yes sir, actually i am sending you my code behind. please consider this. using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using Login_Bl; using message; using General_Bal; using ChecknetConnection; [Serializable] public partial class Default : System.Web.UI.Page { LoginBl objloginbl = new LoginBl(); GeneralBal objgeneral = new GeneralBal(); public static DataSet usr_val = new DataSet(); public static DataSet usr_val_usr = new DataSet(); protected void Page_Load(object sender, EventArgs e) { txtUserId.Focus(); if (Session["loginfailed"].ToString() == "1" ) { WebMsgBox.Show("You Have Been Signed Out.As Another User Has Signed In With Your UserID"); } string ses = Session.SessionID; if (usr_val.Tables.Count > 0) { if (usr_val.Tables[0].Rows.Count > 0) { string sess = usr_val.Tables[0].Rows[0]["sessionid"].ToString(); string expl = usr_val.Tables[0].Rows[0]["explorer"].ToString(); HttpBrowserCapabilities bro = new HttpBrowserCapabilities(); bro = Request.Browser; if (bro.Browser.ToString() == expl.ToString()) { Session["Roles"] = "Admin"; Session["customer"] = usr_val.Tables[0].Rows[0]["userid"].ToString(); Session["sessionid"] = usr_val.Tables[0].Rows[0]["sessionid"].ToString(); Response.Redirect("Admin/AdminHome.aspx"); } } } if (usr_val_usr.Tables.Count > 0) { if (usr_val_usr.Tables[0].Rows.Count > 0) { string sess = usr_val_usr.Tables[0].Rows[0]["sessionid"].ToString(); string expl = usr_val.Tables[0].Rows[0]["explorer"].ToString(); HttpBrowserCapabilities bro = new HttpBrowserCapabilities(); bro = Request.Browser; if (bro.Browser.ToString() == expl.ToString()) { Session["Roles"] = "User";

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              • V vikas shukla

                thank u sir, i was doing the same as you are saying.and i am entering browser name also in my loginentry table(temp table). so that suppose if user login from ie browser and now he opens new ie and enter login page of application then user should not have login page because user has logged in once and it shows direct user home page.but if he enter login url in mozilla or any other browser then he should have login page. but at the same time if i am opening my login page from another system then again user home page is displaying.but it should be login page.

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                B Offline
                Brij
                wrote on last edited by
                #11

                vikas shukla wrote:

                but at the same time if i am opening my login page from another system then again user home page is displaying.but it should be login page.

                You should also store the IP of the system along with the browser.So the you can check from which system user is trying to login.If request comes from another Ip then dont allow to be logged in. To get the IP of the client system, you can get using srever variables as Request.ServerVariables["REMOTE_ADDR"]

                Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

                V 2 Replies Last reply
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                • A Abhijit Jana

                  And I think this is quite well known problem for us ... ;) .. Account Locked : :laugh:

                  Cheers ! Abhijit Jana | MVP Web Site : abhijitjana.net Don't forget to click "Good Answer" on the post(s) that helped you.

                  B Offline
                  B Offline
                  Brij
                  wrote on last edited by
                  #12

                  yes :)

                  Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

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                  • B Brij

                    vikas shukla wrote:

                    but at the same time if i am opening my login page from another system then again user home page is displaying.but it should be login page.

                    You should also store the IP of the system along with the browser.So the you can check from which system user is trying to login.If request comes from another Ip then dont allow to be logged in. To get the IP of the client system, you can get using srever variables as Request.ServerVariables["REMOTE_ADDR"]

                    Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

                    V Offline
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                    vikas shukla
                    wrote on last edited by
                    #13

                    thanks sir i tried your suggestion.but problem was same.if i am login from pc1 and at the same time i am trying to login from another pc then both are working while according to my requirement second should be on login page.that means both ip of the system are same is it possible? on the page load i am doing this. string ipaddress = Request.ServerVariables["REMOTE_ADDR"]; if (usr_val.Tables.Count > 0) { if (usr_val.Tables[0].Rows.Count > 0) { string ip = usr_val.Tables[0].Rows[0]["ipaddress"].ToString(); HttpBrowserCapabilities bro = new HttpBrowserCapabilities(); bro = Request.Browser; if(ip==ipaddress ) { if (bro.Browser.ToString() == expl.ToString()) { Session["Roles"] = "Admin"; Session["customer"] = usr_val.Tables[0].Rows[0]["userid"].ToString(); Session["sessionid"] = usr_val.Tables[0].Rows[0]["sessionid"].ToString(); Response.Redirect("Admin/AdminHome.aspx"); } } } } is there another way for take the ip of client system?

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                    • B Brij

                      vikas shukla wrote:

                      but at the same time if i am opening my login page from another system then again user home page is displaying.but it should be login page.

                      You should also store the IP of the system along with the browser.So the you can check from which system user is trying to login.If request comes from another Ip then dont allow to be logged in. To get the IP of the client system, you can get using srever variables as Request.ServerVariables["REMOTE_ADDR"]

                      Cheers!! Brij Check my latest Article :Exploring ASP.NET Validators

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                      vikas shukla
                      wrote on last edited by
                      #14

                      hi sir, please try to understand my problem.and me some help.i am waiting for your help. thanks

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