How to pass parameters between two onclick event

Question

I have a textbox(txtSearch) and button(search) and one link button. First I enter some name in the textbox and click the Search button(username is getting assigned) and click on the link button.

Now username parameter value is not getting passed from searchbutton_click event to linkbutton_click event? How can i achieve this?

public partial class Users: System.Web.UI.Page
{
     public string username = string.empty;

     protected void Page_Load(object sender, EventArgs e)
     {

     }

     public void SearchButton_Click(object sender, EventArgs e)
     {
         username = txtUser.Text.ToString();
     }

     protected void linkButton_Click(object sender, EventArgs e)
     {
         response.write(username) \\here username is coming as empty string.
     }
}

Is the page reloaded when clicking the SearchButton? – Sander Oct 28 '14 at 16:33 — Sander, Oct 28 '14 at 16:33

score 1 · Answer 1 · edited Oct 28 '14 at 16:51

1

you can use viewstate like below.

public string username
{
    get { return (string)ViewState["username"]; }
    set { ViewState["username"] = value; }
}

edited Oct 28 '14 at 16:51

Servy

202,030
26
332
449

answered Oct 28 '14 at 16:43

user1089766

597
6
14

score 0 · Accepted Answer · answered Oct 28 '14 at 16:30

0

You can use Session, like

  public string username 
  { 
     get { return Session["username"] as string; }
     set { Session["username"] = value; }
  }

answered Oct 28 '14 at 16:30

Max Brodin

3,903
1
14
23

It is working for me. Which is the best one to use? Session or Viewstate here? – Selva Oct 28 '14 at 16:50
@Selva Viewstate. ViewState will function properly if the page is open in multiple tabs, Session wouldn't. – Servy Oct 28 '14 at 16:50
@Selva Viewstate would work only on one page, Session would work on multiple pages, see this [SO question](http://stackoverflow.com/questions/733482/what-is-the-difference-between-sessionstate-and-viewstate) – Max Brodin Oct 28 '14 at 17:08
your answer make sense to me. I will use session properties for my issue. Please let me know this is optimized solution for my situation? – Selva Oct 28 '14 at 17:18
I don't really know your situation, if you have only one page, where you use `username` you should user `ViewState`, if you need `username` on other pages - use `Session`. – Max Brodin Oct 28 '14 at 17:25

How to pass parameters between two onclick event

2 Answers2