how can I transfer data from a webpage to another one in asp.net?

Question

Possible Duplicate:
How can I pass values from one form to another in Asp.net

Hi.

I want to pass some data from one page to another at asp.net how can I do this in asp.net?

Answer 1

You can use the QueryString, Session, or Cookies

Note. In all cases when reading the value from the corresponding collection, you need to validate if the object exists before consuming it. (check for null)

Using the query string

Page 1

<a href="mysecondPage.aspx?customerID=43" >My Link</a>

Page 2

    protected void Page_Load(object sender, EventArgs e)
    {
        var c = this.Request.QueryString["customerID"];
    }

Using the Session object

Page 1

    protected void Page_Load(object sender, EventArgs e)
    {
        this.Session["customerID"] = 44;
    }

Page 2

    protected void Page_Load(object sender, EventArgs e)
    {
        var c = (int)this.Session["customerID"];
    }

Using cookies

Page 1

    protected void Page_Load(object sender, EventArgs e)
    {
        this.Response.Cookies["customerID"].Value = "43";
    }

Page 2

    protected void Page_Load(object sender, EventArgs e)
    {
        var c = int.Parse(this.Request.Cookies["customerID"].Value);
    }