How to prevent duplicate value enter into textbox using j-qu

Hi subhalaxmi,

   

   Get string on text change or blur event, then pass value to method using ajax, return status exists or not. then validate the text.

 

 hope it will works, accept if works.

Hi,

 

Please have a look at below article -

 

http://www.mikesdotnetting.com/article/99/preventing-duplicate-user-names-with-asp-net-and-jquery