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  1. We have the config and its type.
  2. But we have to create the formGroup and register control everytime, which we can move the logic to formService.
  3. But we have to do ngSwitchCase in the template, which we can move to one html file and we can use that file in every component template, but if take a look carefully, HTML part is exactly the design bottleneck where we create controls based on its type.
  4. In future we might have 20 type of controls, we can’t put all 20 switch blocks, we will be violating Single Responsibility Principle and Open/Closed Principle.
  5. My Idea is to extract each control into its own separate component and create those components dynamically using ngComponentOutlet.
  1. We have solved one problem by moving dynamic controls to their dedicated components, and resolving those compnonents via resolverService which helps in introducing new controls with ease, also less repititive work.
  2. Till now our implementation supports only controls, we don't support formGroups or formArrays.
  3. I also don't like the explicity [formGroup]="form" in every dynamic control component.
  4. But for now we will focus on introducing formGroup support to our dynamicForm Implementation.
  1. FormGroup works fine now in our dynamic approach.
  2. But we have to use formGroup wrapper in every dynamic component, which i would like to remove and use more better approach.
  3. We will use viewProviders to resolve parent formGroup/formGroupName , as formControlName resolves the provider for ControlContainer using @Host, so it should find a provider in the same view, providers will not work, as @Host decorator.
  1. Currently we ard hard-coding the logic of error messages in the directive, we can make that configurable.
  1. Implemented Configurable ErrorStateMatcher to configure the logic for rendering errors

DynamicFormsPoc

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Dynamic Forms in Angular, Configurable Global Error Management for Controls

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