I test in my project
Two pictures
I only modify the part in red box.
first picture the same problem,  I use the version which download on the website and use in local.
second picture  works fine.

thank you

I use google chrome

The picture show , it can select the option , it can't auto locate the option, when I enter "唐" , it can't find '唐' area

I try the demo , so I'm sure it's ok in English

I upgraded version and I have not modified the code

thank you

my code:

$('#case_input_person,#case_search_person').combogrid({
        data: data,
        idField:'id',
        textField:'name',
        columns:[[
              {field:'name', title:'姓名'},
            ]]
   });

ComboGrid in 1.5.4.1
when I enter something in the box , it can automatic locate the option, it works well in English
But it can't work in Chinese , when I enter Chinese in box , it will locate the botton of all the options
I'm sure it's ok in previous version

thank you

Thank you for answering my question.

I mean maybe it should be like the effect of the following attachments.

The validation 'required' doesn't work in tagbox.

<input class="easyui-tagbox" value="Apple,Orange" label="Add a tag" required style="width:100%">