How to update the data source, after calling external API using filtering event of autocomplete

[Goutham]

Hi,

Problem:The data source(autoCompData) is not updating which is attached to autocomplete control ,after calling an external api call on event of filtering and updating data as below.

html:

4

ts:

But the data-source is not updated with remote filtered data.

Why this:When drop down button is clicked ,showing no records,But on filtering showing pop up with data.

Thank you.

[Prince Oliver]

Hi Goutham 

Thank you for contacting us. 

We checked the share code snippet. It seems that you have initialized the dataSource as empty array([]) and then have assigned the some results to dataSource property in the filtering event. Hence during the initialization, when you click dropdown button the result is empty. The filtering event will trigger only when you start typing the characters in the input. So we suggest you assign the below code to actoComData at the initialization. 

 

public actoComData = this.SomeService.getFiltered(''); 

 

Let us know if you need any further assistance on this. 

Regards, 

Prince 

[Goutham]

Hi,

But until i  search something ,no records are found that is ok at initial stage.After search i have records from result of API call.i am using event.updateData() method to update records,so that pop up opens and shows updated records,once i close popup and open it again with drop down click there is no records to show.

requirement:can i  load the records into autoCompData(which is initialized to dataSource of auto complete) after API call.i tried this way but not working.

[Prince Oliver]

Hi Goutham, 

Thank you for your update. 

We checked the reported scenario. To show the data again when you click the popup button, we suggest you set the result back to the autoCompData in the beforeOpen event. Please find the code snippet below, 

[app.component.ts] 

public onBeforeOpen(e) { 

    this.autoCompData = this.result; 

} 

[app.component.html] 

<ejs-autocomplete id='games' #sample [dataSource]='autoCompData' 

[placeholder]='waterMark' [fields]='fields'  (filtering)='onFiltering($event)' [showPopupButton] ="true" (beforeOpen)='onBeforeOpen($event)'></ejs-autocomplete> 

Sample Link: https://stackblitz.com/edit/angular-agwu9h-2lyzel  

Let us know if you need any further assistance on this. 

Regards, 

Prince 

[Goutham]

Thank you,its working as expected.

[Narayanasamy Panneer Selvam]

Hi Goutham, 

 

Most welcome. we are glad that the issue is resolved in your end. 

 

Regards, 

Narayanasamy P.