Cascading dropdown list in asp .net core

Question

All guids I try using cascade dropdown lists States and Cities but return "undefined" Model file States.cs:

Model file Cities.cs:

controller:

view file Cities.cshtml:

cities table:

states table:

after run project and select a state show this result:

Answer 1

Please add console.log(cities) to check the response:

$.each(data, function (i, cities) {
    console.log(cities); //add this...
    items += "<option value='" + cities["citiesId"] + "'>" + cities["cityName"] + "</option>";
});

Then you will find the property name in response is camel case .

So you need change code like below(eg change cities["CitiesId"] to cities["citiesId"] ):

items += "<option value='" + cities["citiesId"] + "'>" + cities["cityName"] + "</option>";