Question

I have an ASP.NET linkbutton control on my form. I would like to use it for javascript on the client side and prevent it from posting back to the server. (I’d like to use the linkbutton control so I can skin it and disable it in some cases, so a straight up tag is not preferred).

How do I prevent it from posting back to the server?

Answer 1

ASPX code:

<asp:LinkButton ID='someID' runat='server' Text='clicky'></asp:LinkButton> 

Code behind:

public partial class _Default : System.Web.UI.Page  {     protected void Page_Load(object sender, EventArgs e)     {         someID.Attributes.Add('onClick', 'return false;');     } } 

What renders as HTML is:

<a onclick='return false;' id='someID' href='javascript:__doPostBack('someID','')'>clicky</a> 

In this case, what happens is the onclick functionality becomes your validator. If it is false, the ‘href’ link is not executed; however, if it is true the href will get executed. This eliminates your post back.