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

Question

Hello Friends How to prevent duplicate value enter into textbox using j-query ajax. Thank you

Prakash Kumar · Answer

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. country type= text id= text_value > $(document).on( 'change keyup paste'  #text_value  function () { var country=$( #text_value ).val(); $.ajax({ type: GET  url: country/validateduplicate  data: {name:country} success: function (result) { if (result== Exists ) $( #text_value ).val(  ); } }); }); hope it will works accept if works.

Midhun T P · Answer

Hi Please have a look at below article - http://www.mikesdotnetting.com/article/99/preventing-duplicate-user-names-with-asp-net-and-jquery