I have copied and pasted the codes from the viewsource  from  ComboBox

The only different is the  <select id="combobox"> which is being populated from a datasource.

The dropdownlist is being populated from the datasource .

I did the following:

1. Type in and select from list

2. Click on X to remove the selected item

3. Click on Show All items

4. Select from the list

5. Click on X

6 Click on anything outside the combobox. The system crashes just after doiong step6 with the following message in IE10

Unhandled exception at line 516, column 3 in http://localhost:/Scripts/jquery-1.10.2.js

0x800a139e - JavaScript runtime error: no such method 'instance' for autocomplete widget instance 

Any idea how I can correct the above error