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[Remya]

I would like to know whether i am able to display more than one columns in Autocomplete textbox and able to search with all the displayed columns.

[Varalakshmi R.S]

Hi Remya,

Thanks for contacting Syncfusion forums.

We suggest to refer the following online sample link which helps to achieve for displaying more than one columns in the AutoCompleteTextBox.
http://asp.syncfusion.com/demos/ui/tools/AutoComplete/TemplatedUserEmailList/cs/UserChoiceList.aspx

We suggest you to set the corresponding field name for searching the items. And searching can be done based on the column which you provided.

Regards,
Varalakshmi