How to select the listitem in RadioButtonList using jquery or javascript?

<asp:RadioButtonList ID="rdbtn" runat="server" >
                                <asp:ListItem Value="firstitem">First</asp:ListItem>
                                <asp:ListItem Value="seconditem">Second</asp:ListItem>

I need to set the First listitem to be selected based on some condition. Also to deselect based on some condition.



Consider wrapping the RadioButtonList in some element with specific id or class and using that to search the element or setting the property ClientIdMode="Static" to avoid ASP.Net from changing the id.

If all you want is the first to be selected then, find the first radiobutton and select it. I don't know what is your condition that you are speaking of.


$(function() {
   $("#rdbtn :radio:first").prop("checked", true);

Select with specific value:

   $(function() {
       $("#rdbtn :radio[value='1']").prop("checked", true);


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