setValue of ui.gridsuggest, Methods Webix Docs
selects an item in the options list
void setValue(string|number value);
Example
// master is a control with a popup list of options
var suggest = master.getPopup();
master.setValue(2);
Details
The method doesn't set value for the master control (text, combo, multicombo, richselect, multiselect), it selects an option in the suggest list only.
To set the value of the master control, apply the the setValue method to it.
See also