javascript - TextBox and Button JS Onclick -


i have textbox. wanted use js onclick append input in textbox "btngo" button below it's not working:

document.getelementbyid('btngo').onclick = function() {    var search = document.getelementbyid('dlrnum').value;    window.location.url = "http://consumerlending/app/indirect/dealercomments.aspx?dlrnum=" + search;  }
<input id="dlrnum" type="text" name="dlrnum" autocompletetype="disabled" class="ui-autocomplete-input" autocomplete="off">  <input id="btngo" type="submit" value="go" name="go" runat="server">

what missing?

you had several problems there: 1. <input> elements part of form, when click on submit button - form submit, unless prevent it. 2. need use window.location.href (and not .url).

here fix code:

document.getelementbyid('btngo').onclick = function(e) {     e.preventdefault()     var search = document.getelementbyid('dlrnum').value;     window.location.href = "http://consumerlending/app/indirect/dealercomments.aspx?dlrnum=" + search; }

note e element inside function(e) - it's there can use event object prevent default behavior of form submission.


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