Greetings from Syncfusion support.
We have investigated your query. On analyzing the your shared ejAutoComplete sample. We found that you have mentioned type attribute for the input element, incorrectly.
Refer the below code block to resolve the reported issue.
Input type in your sample:
<input id="lng1" name="lng1" type="type=text" value="">
Corrected Input type:
<input id="lng1" name="lng1" type="text" value="">
We have modified your shared sample.
Please let us know if you need any further assistance.
Shameer Ali Baig S.