Data Transmission State management session expire query string view state cokkies application state session 1. Secure data transfermation 2. 60 sec of default time 3. how to create session syntax session["variable"]=control; session["email"]=textbox1.text; session is to be access in all website. Q.how to access session? All types of session is to be access inside the page load event Query String 1. Query string is used to transfer data with URL 2. Query string does not use secure data tranfermation 3. Query string variable represent que mark. Syntax Response.redirect("page.aspx?variable="+control); control=request.querystring["variable"]; Query string is to be acess in page load event *Multiple variable in query string (&)mpercent
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using System.Data.SqlClient; public partial class Dview1 : System.Web.UI.Page { SqlConnection cn; SqlCommand cm; SqlDataReader dr; protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { } } protected void Button1_Click(object sender, EventArgs e) { string k = @"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\college.mdf;Integrated Security=True;User Instance=True"; cn = new SqlConnection(k); cn.Open(); string k1 = "select * from student"; cm = new SqlCommand(k1, cn); ...
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