1. Which Ignite UI for Angular version are you using? igniteui-angular": "8.2.17
2. How is the data updated on your side? Could you please provide a code snippet from the .ts file?
   let temptopic = this.testvall[‘test’].filter(fdata => fdata.scanTopic == this.selectedquery)

   if (!checkboxinactive) {

   temptopic.map((data) => {

   if (data.activeRole == 'Y') {

   let temptopic = {

   "field": data.queryName,

   "queryId": data.queryId

   }

   this.querytopic.push(temptopic)

   }

   })

   } else {

   temptopic.map((data) => {

   if (data.activeRole == 'N') {

   let temptopic = {

   "field": data.queryName,

   "queryId": data.queryId

   }

   this.querytopic.push(temptopic)

   }

   })

   }

   in console also this.querytopic – I have value  
3. Is this behavior reproducible when binding the combo data initially or only when updating the data? only when updating the data . 

Hi Riva,

Thanks for the update. Please find the below sample data

sample combo box:

<igx-combo #comboqueryutopic class="combo2" [itemsMaxHeight]="250" [data]="querytopic" displayKey="field"

valueKey="queryId" [(ngModel)]="fselectedquerytopic" ngDefaultControl

(onSelectionChange)="singleSelectionQuerytopic($event)" placeholder="Select Query Under Topic"

searchPlaceholder="Search…" [filterable]="true" [disabled]="disabledtablelevel">

</igx-combo>

sample data:

[
{
“field”: “Test1”,
“queryId”: 281
},
{
“field”: “Test12”,
“queryId”: 275
},
{
“field”: “Test13”,
“queryId”: 276
},
]

if possible can you please schedule meeting

Regards,

Sarathkumar

Hi Riva,

Could you please clarify what do you refer to with “update values from backend”? yes, I assigned new set values .   For my side I am assigned same name displayKey="field" only .

<igx-combo #comboqueryutopic class="combo2" [itemsMaxHeight]="250" [data]="querytopic" displayKey="field"

valueKey="queryId" [(ngModel)]="fselectedquerytopic" ngDefaultControl

(onSelectionChange)="singleSelectionQuerytopic($event)" placeholder="Select Query Under Topic"

searchPlaceholder="Search…" [filterable]="true" [disabled]="disabledtablelevel">

</igx-combo>