In my Angular 6 project, I have successfully implemented a shared component called country-state. It is functioning perfectly.
VIEW MY PERFECT WORKING EXAMPLE
However, upon dividing the country-state component into separate country and state components, I encountered an issue where I cannot populate the states for selected countries. How can I address this in my not working example?
To enhance the service, add a public variable to set the country ID and create a method for filtering by this ID.
countryId = null;
filterByCountryId(){
if(!this.countryId) return null;
return this.getStates().filter((item) => item.countryid == this.countryId);
}
Next, set the country ID from the country component:
onSelect(countryid) {
this.selectService.countryId = countryid;
}
In the state component, invoke the filter method:
get states(): State[]{
return this.selectService.filterByCountryId();
};
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