QUERY STRING IN ASP.NET BY ANIL KUMAR

                         QUERY STRING

DIFFERENCE BETWEEN COOKIE AND QUERY STRING

1.    THERE IS AN LIMIT OF THE BROWSER TO APPENED THE DATA, IN QUERY STRING WE APPEND OUR VALUES IN URL OF THE BROWSER TO ACCESS IT ANOTHER PAGE

2.  IN QUERY STRING WE CAN ACCESS THE VALUE AT THE SAME PAGE OR MAY BE AT THE TARGET PAGE WHERE AS IN COOKIE WE CAN ACCESS THE DATA IN ANY PAGE

3.   HERE ? (QUESTION MARK) IN URL SEPERATING THE URL VALUE AND QUERY STRING VALUE AND &(AMPERCENT) SEPARATE TWO OR MORE QUERY STRING VALUE

4.  This technique is also not a secure. A client can do changes on the url value send by the server at client side

    ON DEFAULT. ASPX

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

{

    protected void Page_Load(object sender, EventArgs e)

    {

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        Response.Redirect("Default2.aspx?i=10");

        Response.Redirect("Default2.aspx?id=" + TextBox1.Text + ",&name=" + TextBox2.Text + "");

    }

}

          ON SECOND PAGE DEFAULT2.ASPX

public partial class Default2 : System.Web.UI.Pageres

{

    protected void Page_Load(object sender, EventArgs e)

    {

        string s = Request.QueryString["i"];

        Response.Write(s);

        string s = Request.QueryString["id"];

        string m = Request.QueryString["name"];

        Response.Write(s + "," + m);

      

    }

}

        ON SAME PAGE

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

{

    protected void Page_Load(object sender, EventArgs e)

    {

        if (Request.QueryString["id"] != null && Request.QueryString["name"] != null)

        {

            string s = Request.QueryString["id"];

            string m = Request.QueryString["name"];

            Response.Write(s + "," + m);

        }

    }

    protected void Button1_Click(object sender, EventArgs e)

    {

        //Response.Redirect("Default2.aspx?i=10");

        Response.Redirect("Default.aspx?id=" + TextBox1.Text + ",&name=" + TextBox2.Text + "");

    }

}