retrieve ID of server control using jQuery

Question

How do I get the ID of a server control with jQuery?

E.g. I have

<asp:Label ID="label1" runat="server""></asp:Label>

and now I want to get "label1",

var id = ??

Answer 1

If you use ASP.NET 4.0 you can set attribute ClientIDMode="Static" and your code will looks following way:

<asp:Label ID="label1" runat="server" ClientIDMode="Static"></asp:Label>

js:

var id = 'label1';

Answer 2

var labelID = $('#<%= label1.ClientID %>');

You need to get the client ID.

If you just need the ID, and not the actual value of the control, then you don't even need jQuery.

var labelID  = '<%= label1.ClientID %>';