p-autoComplete Pre-select a default value

Question

I am using p-autoComplete in a table, once a row is selected my auto complete should preselect the current value..I tried using [(ngModel)]="row.bsaName" but it is not working. (Once I click on my dropwdown I see all the values, I confirmed the values do exist on my p-autoComplete dropdown)

also Note I used p-calendar which I was able to pre-select the current date once click on edit and not sure why auto complete is different

hTML

        <p-table #dt [value]="iBsaFollowup" dataKey="id" [paginator]="true" [rowsPerPageOptions]="[10,50,100]"
                     [rows]="10">

                <ng-template pTemplate="header">
                    <tr>
                        <th>ID</th>
                        <th>Followup DT</th>
                        <th>Comment</th>
                        <th>BSA Name</th>
                        <th>Action</th>

                    </tr>
                </ng-template>
                <ng-template pTemplate="body" let-row>
                    <tr>
                        <td>{{row.ID}}</td>


                        <td>
                            <div *ngIf="!row.isBSAEditable">{{row.followupDate}}</div>
                            <div *ngIf="row.isBSAEditable">

                                <p-calendar name="followupDate" [(ngModel)]="row.followupDate"  [showIcon]="true"></p-calendar> <span style="margin-left:35px"></span>
                                <span *ngIf="isEmpty(row.comment)" style="color:crimson; font-size:8pt">Required</span>
                            </div>
                        </td>
                        <td>
                            <div *ngIf="!row.isBSAEditable">{{row.comment}}</div>
                            <div *ngIf="row.isBSAEditable">
                                                                       <input type="text" [(ngModel)]="row.comment" style="width:95%" maxlength="200">
                                <span *ngIf="isEmpty(row.comment)" style="color:crimson; font-size:8pt">Required</span>
                            </div>
                        </td>


                        <td>
                            <div *ngIf="!row.isBSAEditable">{{row.bsaName}}</div>
                            <div *ngIf="row.isBSAEditable">

                                <p-autoComplete name="bsaNameList" [(ngModel)]="row.bsaName" [suggestions]="iBsaList"   (completeMethod)="searchBsaList($event)" [style]="{'width':'85%'}" [inputStyle]="{'width':'85%'}" field="name" dataKey="id" [dropdown]="true"></p-autoComplete>

                                <span *ngIf="isEmpty(row.comment)" style="color:crimson; font-size:8pt">Required</span>
                            </div>
                        </td>
                        <td>
                            <div>
                                <modal [row]="row" [disableEditSaveButton]='isEmpty(row.comment)' (deleteRow)="onDeleteToDoList(row)" [showModal]="!row.isBSAEditable" (selectedRow)="onSelectedFollowupdRow(row)" (cancelEdit)="onCancelEdit(row)" (save)="onSave(row)"></modal>
                            </div>
                            <!--<button (click)="editRow(row)">Edit</button>-->
                        </td>

                    </tr>
                </ng-template>

            </p-table>

component

    bsaListVal: IBsaList;
    iBsaList: IBsaList[];
    originalBsaList: IBsaList[];
 searchBsaList(event) {
        this.iBsaList = this.originalBsaList;
        this.iBsaList = this.iBsaList
            .filter(data => data.name.toString()
                .toLowerCase()
                .indexOf(event.query.toString().toLowerCase()) !== -1);

    }
    GetBsaList() {
        this._dashboardService.getBSAList()
            .subscribe(
            data => {
                this.iBsaList = data.result;
                this.originalBsaList = data.result;

            },
            error => console.log('xx Method: ' + 'alert alert-danger'));

    }

interface

export interface IBsaList {

    id: string,
    name: string
}

********************************************UPDATE********************************************** HTML

           <p-autoComplete name="bsaNameList" [(ngModel)]="row.bsaName" [suggestions]="bsaNameArr"   (completeMethod)="searchBsaList($event)" [style]="{'width':'85%'}" [inputStyle]="{'width':'85%'}" field="name" dataKey="id" [dropdown]="true"></p-autoComplete>

Component

        bsaListVal: IBsaList;
        iBsaList: IBsaList[];
        originalBsaList: string[];
        bsaNameArr: string[];
 searchBsaList(event) {
        this.bsaNameArr = this.originalBsaList;
        this.bsaNameArr = this.bsaNameArr
            .filter(data => data
                .toLowerCase()
                .indexOf(event.query.toString().toLowerCase()) !== -1);

    }
    GetBsaList() {
        this._dashboardService.getBSAList()
            .subscribe(
            data => {
                this.bsaNameArr =  data.result.map(e => e.name);// data.result;
                this.originalBsaList = data.result.map(e => e.name);

            },
            error => console.log('GetAllAccessFor Method: ' + 'alert alert-danger'));

    }

Answer 1

Just to reconcile everything happened in the comments.

The reason why the autocomplete does not work as expected is because you're binding [(ngModel)] to a string row.bsaName while your [suggestions] is an Array of Object. Hence, binding does not work here. There are couple of ways to fix the issue:

1. Change row.bsaName or bsaName property on your data to an Object with {id, name} to match the data model of your [suggestions]
2. Make an array of string e.g: bsaNamesArr: string[] and on your data fetching, map over your data.result to get the name array and assign that to bsaNamesArr this.bsaNamesArr = data.result.map(element => element.name). Now, use bsaNamesArr as the [suggestions] and also use bsaNamesArr in your (completeMethod) as well.

Make sure to remove the field property on your p-autocomplete if you use the 2nd approach.

Good luck!

Answer 2

You can use,

 <ng-template></ng-template>

inside the

 <p-autoComplete></p-autoComplete>

tag as I have done in my project. Syntax below:

<p-autoComplete
     pTooltip="'tooltip'"
     [(ngModel)]="student"
     #student_id="ngModel"
     name="student_id"
     [suggestions]="studentsList"
     (completeMethod)="filterStudentsList($event)"
     field="name"
     [size]="30"
     placeholder="Enter Student name"
     [minLength]="1"
     required
     (onSelect)="onSelect($event)">
  <ng-template let-student pTemplate="item">
    {{ student.name }}
  </ng-template>
  <ng-template let-student pTemplate="selectedItem">
    {{ student.id }} {{ student.student_name }}
  </ng-template>

So that if you want to select 2 values from selected suggestions we can do using this.