asp.net - Filling City From Google Api Only -


i have asp textbox. want integrate cities of specific country , provide autocomplete feature in it. accomplished using this. 

var options = {                 types: ['(cities)'],                 componentrestrictions: { country: "in" }               }; new google.maps.places.autocomplete(document.getelementbyid('txtplaces'),options);

now want provide validation such user has select city auto complete , cannot enter other unknown city.

the validation should provide indication user such he/she knows value entered correct , can move on fill next values

please me out on this. thanx in advance.

observe place_changed-event of autocomplete, when place has geometry-property it's valid place based on suggestions


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