how to start session when user logins successfully in asp.net (c#)

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ASP.NET4

Please give me code for understanding how to start session when a user login successfully.Please help friends.

Posted 10-Nov-12 9:35am

surendra00

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Nelek · Answer 1 · 2012-11-10T10:34:00

Solution 1

Please have a look:
ASP.NET Session End Event Fires Immediately After Session Start - Resolved[^]
http://csharpdotnetfreak.blogspot.com/2008/12/user-validation-across-pages-using.html[^]
The might be a good point to start with

Posted 10-Nov-12 10:34am

Nelek

downloadsrk · Answer 2 · 2013-06-03T01:48:00

Assuming if the user name and password stored in database , ex : stored in login table
in login page:

protected void butnLogin_Click(object sender, EventArgs e)
{
SqlConnection con1 = new SqlConnection();
con1.ConnectionString = ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
string sql1 = " select * from Login where Email = @email and Pass = @pass";
SqlCommand cmd1 = new SqlCommand(sql1, con1);
cmd1.Parameters.AddWithValue("email", txtEmail.Text);
cmd1.Parameters.AddWithValue("pass", txtPass.Text);

con1.Open();
SqlDataReader dr = cmd1.ExecuteReader();
if (dr.Read())
{
con1.Close();
Session["UserAuthentication"] = username;
Response.Redirect("main.aspx");
}

else
lblLoginFaild.Visible = true;

}

in mainPage.aspx

protected void Page_Load(object sender, EventArgs e)
{
if ( Session["UserAuthentication"] == mull)
{
Response.Redirect("~/login.aspx");
}
}