Currently, I am engaged in a project where users can generate applications dynamically. In order to achieve this, I allow components to specify their own properties as shown below.
export class InputComponent extends GenericComponent implements OnInit {
ngOnInit(): void {
// Testing dynamic property assignment (successful)
(<any>this).Value = 499;
}
static availableProperties : PropertyDetails[] = [
new PropertyDetails({ label: "Name", type: "String", maxLength: 50, allowBlank: true }),
new PropertyDetails({ label: "Value", type: "Any" })
];
get availableProperties() : PropertyDetails[] {
return InputComponent.availableProperties;
}
}
In this setup, a base component generates dynamic getters/setters for these properties. This approach enables me to assign values to properties without having to manually define numerous properties that certain components may require later on, potentially dynamically allocated. The foundation of the `GenericComponent` component looks somewhat like this and takes care of establishing the dynamic properties.
export abstract class GenericComponent implements OnDestroy, ComponentInterface {
constructor() {
(<ComponentInterface>this).availableProperties.forEach((item : PropertyDetails)=> {
// Establish custom getter / setters for the property
Object.defineProperty(this, item.label, {
get : function() : any {
return this.getProperty(item.label);
},
set : function(value : any) : void {
this.setProperty(item.label, value);
}
});
});
}
This method functions properly when assigning values via TypeScript code such as:
(<any>this).Value = 499;
However, it encounters issues with assigning these dynamic properties using ngModel:
<input mat-input [(ngModel)]="Value" />
Resulting in compilation errors:
Property 'Value' does not exist on type 'InputComponent'
Is there a way to resolve this problem, perhaps through annotations like //ts-ignore, or do I need to manually create these properties within the component structure?