Question

Im trying to set a value to element (id ctl30_txtTextBox) in javascript.

$.ajax({
     type: "POST",
     contentType: "application/json; charset=utf-8",
     url: "IndexMask.aspx/AttachBarcodeFile",
     dataType: "json",
     data: params,
     success: function() {
         $("#<%= DummyPostbackButton.ClientID %>").click();
         var someOtherName = "abc";
         var element = document.getElementById("ctl30_txtTextBox");
         element.Value = someOtherName;
         alert(element.value.toString());
     },
     error: function(request, status, error) {
         alert("Error attaching barcode file.");
     }
 });

Im getting the element, but the value is never set.
If i set a value on the page the alert is displayed with the correct value.

What am i doing wrong?

Answer 1

Javascript is case-sensitive, so it should be:

 var element = document.getElementById("ctl30_txtTextBox");
 element.value = someOtherName;