Seeing the problem is easy do a "View Source" of your page and you will see that using a UserControl changes all the ID's and Names of controls because it utilizies "INamingContainer" (watch video here: http://www.detacheddesigns.com/blog/blogSpecific.aspx?BlogId=133)
Your choices are: 1) Use the generated IDs in your jQuery or 2) Use the "ClientID()" server side On Oct 22, 2:04 pm, maya86 <[EMAIL PROTECTED]> wrote: > Dears, > i added an autoComplete plug in , and i used the ".autocomplete" > method in the plugin and it works fine when i use it in a page . aspx > and it doesn't work fine in usercontrols, it says " object or property > doesn't exist. please reply with an answer i can use