I need to create session inside of the webmethod?

Question

I have one method inside class in that class i have one webmethod there i need to create session variable 

 

public partial class Incomeexpenses : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

}

[WebMethod (EnableSession =true)]

[ScriptMethod]

public static string SaveDetails(string Name, string Password)

{

Util u = new Util();

try

{

string ip = u.GetIP();

SqlCommand cmd;

SqlConnection con = new SqlConnection();

SqlDataReader dr;

con = u.GetConnection();

cmd = new SqlCommand("select User_Uniq from Dim_Users where User_Email='" + Name + "'", con);

dr = cmd.ExecuteReader();

if (dr.HasRows)

{

//here i need to create session variable  

Session["UserName"] = dr.GetString(0).ToString();

con.Close();

return "true";

}

else

{

con.Close();

return "false";

}

}

catch (Exception ex)

{

throw ex;

}

}

 }