Show new options in select pop-up

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Hi! I am trying to figure out how to show new select options which were added after the component was initialized. I mean that the property, which is binded to [dataSource], might change dynamicaly and I'd like to show this new values

[Prince Oliver]

Dear Customer, 

Thank you for contacting us. 

Yes, you can directly modify the value in the variable bound to the dataSource property. These changes will be reflected in the control. Kindly refer to the following example for further reference. 

Example link: https://stackblitz.com/edit/angular-wffg9g 

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

Regards, 

Prince