ngx-select-dropdown set displayKey with multiple values

Question

I am using ngx-select-dropdown with search feature and I want to set multiple displayKey values like: firstname and lastname.

Below is my config object:

dropdownconfig = {
    displayKey: 'firstName, lastName',
    search: true,
    placeholder: 'Select User',
    height: '150px'
};

html:

<ngx-select-dropdown (change)="selecteAdmin($event)" [config]="dropdownconfig" [options]="allUserData" [(ngModel)]="singleSelect" [multiple]="false" ></ngx-select-dropdown>

How to display multiple values for displayKey? Also, need validation on that drop-down.

Answer 1

Create custom field in your array object. And use it as key.

dropdownconfig = {
    displayKey: "custom",
    search: true,
    placeholder: "Select User",
    height: "150px"
  };


  allUserData = [
    { firstName: 'first1', lastName: 'last1'}, 
    { firstName: 'first2', lastName: 'last2'},
    { firstName: 'first3', lastName: 'last3'},
    { firstName: 'first4', lastName: 'last4'}
  ]

  ngOnInit() {
    for (let user of this.allUserData) {
      user['custom'] = user.firstName + ' ' + user.lastName;
    }
  }

Working Stackblitz