Binding select element to object in Angular

Question

I\'d like to bind a select element to a list of objects -- which is easy enough:

@Component({
   selector: \'myApp\',
   template: `
My Application&         


        

Answer 1

My Application

  {{c.name}}

StackBlitz example

NOTE: you can use [ngValue]="c" instead of [ngValue]="c.id" where c is the complete country object.

[value]="..." only supports string values
[ngValue]="..." supports any type

update

If the value is an object, the preselected instance needs to be identical with one of the values.

See also the recently added custom comparison https://github.com/angular/angular/issues/13268 available since 4.0.0-beta.7

Take care of if you want to access this within compareFn.



compareFn = this._compareFn.bind(this);

// or 
// compareFn = (a, b) => this._compareFn(a, b);

_compareFn(a, b) {
   // Handle compare logic (eg check if unique ids are the same)
   return a.id === b.id;
}

    

             

                                                        
            
            

              
                
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