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Using Sessions in Login page and how to maintain the state in all pages of application

Posted Date: 30 Aug 2008 Total Responses: 4

Posted By: MSB Member Level: Bronze Points: 1

Hello members,

I am new to .net and this is my first post. I have made a login page for a small website whihc I am making. I am doing the website in C#.net. Sqlserver 2005. I am getting confused about how to use sessions in login page and how to maintain the state in all other pages of my website.

Please help me with some sample code.. that would be greatly appreciated. I got struck basically in how to carry the username and password to all the pages to maintain state.

Please help me out by givnig some sample code. My login page has this code,

protected void Button1_Click(object sender, EventArgs e)
{

SqlConnection myconn = new SqlConnection();
SqlCommand mycmd = new SqlCommand();
SqlDataReader myDataReader;

try
{
myconn.ConnectionString = ConfigurationManager.ConnectionStrings["con_str"].ConnectionString;
myconn.Open();

string myTxtsql = "select username,password from student where username = " + " '" + TextBox1.Text + "' " + " and password= " + " '" + TextBox2.Text + "' ";

mycmd.CommandText = myTxtsql;

mycmd.Connection = myconn;

myDataReader = mycmd.ExecuteReader();

Session["username"] = TextBox1.Text;

int i = 0;

while (myDataReader.Read())
{
i = i + 1;
}
if (i == 1)
{
Response.Redirect("welcome.aspx");
}
else
{
Label3.Text = "Invalied details";
}

myDataReader.Close();
}

catch(Exception err)
{
Response.Write(err.Message.ToString());
Console.WriteLine(err.Message.ToString());
Trace.Warn(err.Message.ToString());
}
finally
{
mycmd.Dispose();
myconn.Close();
}

}

Hoping for an early and a positive reply..

Regards

MSB..

Responses

Author: Pradeep Kumar Chaudhary 30 Aug 2008

Member Level: Gold

Rating:

Points: 2

All data in a server in uniquely identified is called a Primary key.
When a user is logged in successfully then the logged username or ID is stored in the session like:
Session["UserName"]="<loggedinusername>"
Session["UserId"]="<UserId>"
The logged in UserID or UserName will be used to retreive the value corresponding to the data.
When the User Login successfully, a session will be created to maintain these things.
I think you got your answer, If u have any query then u can post them.

Regards,
Pradeep

Author: Barani 30 Aug 2008

Member Level: Silver

Rating:

Points: 2

Author: MSB 30 Aug 2008

Member Level: Bronze

Rating:

Points: 1

Hi....

I found answer for my question...

we need to use Session.IsNewSession

Author: bill 31 Aug 2008

Member Level: Gold

Rating:

Points: 2

hi,
Session["username"] = TextBox1.Text;
Session["pass word"] = TextBox2.Text;
the both session can be carried out to all pages .
the session time out by default is twenty minutes.you can also set the
the time.

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