how display login user name in each and every page of my website as in google?

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hi all

iam now building a website in which i want to check whether its a authorized user and if its authorized user i want to display the name in each and every page of the website.

i tried it by setting login in master page...

Code in site master

C#

public partial class SiteMaster : System.Web.UI.MasterPage
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            lbdate.Text = DateTime.Now.ToLongDateString() + "/" + DateTime.Now.ToShortTimeString();
            lbt_login.Text = "Log In";
            lbt_login.Enabled = true;
        }
        else
        {
            if (Session["Ufname"] != null)
            {
                lbdate.Text = DateTime.Now.ToLongDateString() + "/" + DateTime.Now.ToShortTimeString();
                lbt_login.Text = Session["Ufname"].ToString();
                lbt_login.Enabled = false;
            }

        }
    }

    
    protected void lbt_login_Click(object sender, EventArgs e)
    {
        Response.Redirect("user_login.aspx");
    }
}

code in login page

C#

public partial class user_login : System.Web.UI.Page
{
    string str;
    dbconnection c = new dbconnection();
    int maxrecord = 0;

    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            tb_email.Text = "";
            tb_pwd.Text = "";
        }

    }
    protected void imgb_login_Click(object sender, ImageClickEventArgs e)
    {
        try
        {
            lb_error.Text = "";
            int flag = 0;
            str = "SELECT * FROM [user]";
            c.cmd = new System.Data.SqlClient.SqlCommand(str, c.connect());
            //c.dr = c.cmd.ExecuteReader();
            c.da = new System.Data.SqlClient.SqlDataAdapter(str, c.connect());
            c.da.Fill(c.ds);
            c.dt = c.ds.Tables[0];
            maxrecord = c.dt.Rows.Count;
            string email = "", pwd = "";
            string tbemailvalue = tb_email.Text;
            string tbpwdvalue = tb_pwd.Text;

            for(int i = 0; i < c.dt.Rows.Count; i++)
            {
                email = c.dt.Rows[i].ItemArray[4].ToString();
                pwd = c.dt.Rows[i].ItemArray[5].ToString();
                if ((tb_email.Text == email) && (tb_pwd.Text == pwd))
                {
                    flag = 1;

                    Session["Ufname"] = c.dt.Rows[i].ItemArray[2].ToString();
                    break;
                }
            }


            tb_email.Text = "";
            tb_pwd.Text = "";
            if (flag == 1)
            {
                Session["Ufname"] = tb_email.Text;
                Response.Redirect("~/Default.aspx");
                // Response.Write("authorised user.");
                //imgb_login.PostBackUrl = "~/Default.aspx";
            }
            else
            {
                Session["Ufname"] = null;
                //Label6.Text = "Invalid User,<br/>Check Your Email Id and Password.";
                lb_error.Text ="Not an authorised user.";
            }
        }
        catch (Exception ex)
        {
            Response.Write(ex.ToString());
            //Response.Redirect("~/Default.aspx?ErrorMsg = " + ex.Message);
        }
    }
}

can any one plz help me....

Posted 25-Dec-11 18:14pm

Ragi Gopi

Updated 25-Dec-11 19:48pm

v2

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4 solutions

Solution 1

Hi,

Please Read this[^] and from above your master page code you also can remove IsPostBack condition

Posted 25-Dec-11 18:47pm

MaulikDusara

Solution 3

I think its a problem the way you are appending to the label.

I will tell one more approch. Try like bellow.

On the master page where you want to show the user name use like bellow

C#

<![CDATA[<%= if(!string.isEmptyOrNULL(Convert.tostring(Session["Uname"])) { response.write(Convert.tostring(Session["Uname"]); } %>]]>

Label mylabel=(Label)Master.FindControl("masterpagelabel")

If you don't want above approach. Try like in your master page load

C#

if(mylabel !=Null)
{
 mylabel.text= Convert.tostring(Session["Uname"]);
}
else
{}

Posted 25-Dec-11 19:11pm

santhosh-padamatinti

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Suman Zalodiya · Accepted Answer · 2011-12-25T19:10:00

Solution 2

I would like to please don't use master page for login page and if you want to use the master page then make seperate master page for Default page.

If you like my solution please tell me i will provide you the solution.

Please fill free to ask me anytime .

Thanks and Regards
Suman Zalodiya

Posted 25-Dec-11 19:10pm

Suman Zalodiya

Comments

Ragi Gopi 26-Dec-11 1:48am

master page is not the login page..(here its displaying home page)
i just kept a login button on master..and it navigates to a login page...
there login function is done then after the login process it is redirected to home ..then the login button should change its text to username thats my aim...

Suman Zalodiya 26-Dec-11 2:19am

Ok then you can do one thing.

Please read my answer in Solution because i can't write code here in comment.

Thanks

Suman Zalodiya · Accepted Answer · 2011-12-25T20:25:00

Solution 4

Hi Ragi Gopi,

You can do one thing, On Successful login you should create Session as shown below

C++

if(compare user name and password)
{
     //if credentials matches
     Session["UName"]=txtUName.text;
     Response.Redirect("Home.aspx");
}

In the Page_Load() event of the Master page check for the session

..............Page_Load(.... ....)

C++

If(Session["UName"]==null)
       {
               Response.Redirect("user_Login.aspx");
}
else
{
           lblUName.text=Session["UName"].ToString();
}

Please check this and feel free to ask me if still you find any kind of difficulty.

Thanks and Regards
Suman Zalodiya

Posted 25-Dec-11 20:25pm

Suman Zalodiya

Comments

Ragi Gopi 26-Dec-11 3:51am

what to do to clear the session while closing the browser

Suman Zalodiya 26-Dec-11 23:20pm

Session["UName"]=null;

Suman Zalodiya 26-Dec-11 23:24pm

Put Logout button on Master page and on click event of the Logout Button put the code

Session["UName"]=nul;

And one moer thing if you want that once you logout, user should not able to go back to those pages by Back button of browser just paste this 3 lines just before of Page_Load event of the master page

Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetExpires(DateTime.Now.AddSeconds(-1));
Response.Cache.SetNoStore();

Try it it's amazing...

Please revert back to me in case of any concerns i will help my best.

Thanks ans Regards
Suman Zalodiya

Ragi Gopi 3-Jan-12 6:12am

thanks Suman....

Ragi Gopi 3-Jan-12 6:14am

suman iam now working with iframes..

if u r not busy....can u plz look to my problem??

http://www.codeproject.com/Questions/309579/how-to-open-a-word-file-in-iframe

here is my problem..
plz help meeee