how to find control client id

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In below btnBook1 is a server button control id. just i want to access client id of this button.btnBook1 exists dynamically.so when button does not exists then this line of code return error.please provide a way so i can access client id of control.

var str = jquery("#<%=btnBook1.ClientID%>").attr("id").toString();

Please provide solution as soon as possible.
thanks in advance

Posted 10-Feb-13 21:42pm

Vandana_Pathak

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Sergey Alexandrovich Kryukov 11-Feb-13 3:56am

Incredible!
—SA

2 solutions

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Irbaz Haider Hashmi · Answer 1 · 2013-02-10T21:50:00

Solution 1

Try this

C#

<%=(this.FindControl("btnBook1") == null) ? "" : this.FindControl("btnBook1").ClientID%>

Posted 10-Feb-13 21:50pm

Irbaz Haider Hashmi

Updated 10-Feb-13 21:51pm

v2

Comments

Vandana_Pathak 11-Feb-13 4:13am

Not work...Error did not return but still i did not access client id.

Irbaz Haider Hashmi 11-Feb-13 4:19am

The control must be on the page to get the ID. Above code will return empty string if it doesn't find that control on page and client id if it finds that. I am thinking you scenario is much complex to this. Tell me more details about it or try to adjust it according to your requirements.

Vandana_Pathak 11-Feb-13 4:26am

Thanks...actually when get the control in page then above code return object[object] in place or ct_100 like id.

Sergey Alexandrovich Kryukov · Answer 2 · 2013-02-10T21:55:00

Solution 2

Your code is funny, because you are trying to find id via already id, even if it did not return error. Isn't it obvious? If button does not exist, what do you want? It should return error. Well wrap this line in try-catch, but better rethink your general design of your code…

—SA

Posted 10-Feb-13 21:55pm

Sergey Alexandrovich Kryukov

Comments

Vandana_Pathak 11-Feb-13 4:18am

server control id and client id both are different meaning....so its not funny code

Sergey Alexandrovich Kryukov 11-Feb-13 4:39am

Why do you think ClientID is used? ClientID is rendered as "id" in HTML, so the result will be identical; is it not?
—SA