如何在两个onclick事件之间传递参数

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.
     }
}

Answer 1

you can use viewstate like below.

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

Answer 2

You can use Session , like

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