As I embark on the journey of upgrading my Angular 8 application to Angular 17, I am facing challenges related to ngModel binding and PrimeNG components. The architecture of my application follows a module-based structure, with app.module.ts serving as the main module.
Challenge 1: ngModel Binding
The Error: I encounter an error stating that I cannot bind to 'ngModel' since it is not recognized as a property of 'textarea'. The Code:
<textarea class="form-control" [(ngModel)]="lotDataJsonText"></textarea>
Although I have imported FormsModule in my app.module.ts, the error continues to persist.
Challenge 2: PrimeNG RadioButton
The Error: I receive an error (NG8001) indicating that 'p-radioButton' is not a known element:
- If 'p-radioButton' is an Angular component, I should ensure it is part of this module.
- If 'p-radioButton' is a Web Component, I need to add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress the message.
The Code:
<p-radioButton name="requestType" value="lotType" [(ngModel)]="requestType" [ngModelOptions]="{standalone: true}" inputId="requestType1"></p-radioButton>
Configuration
package.json
{
"dependencies": {
"@angular/animations": "^17.1.3",
"@angular/common": "^17.1.3",
"@angular/compiler": "^17.1.3",
"@angular/core": "^17.1.3",
"@angular/forms": "^17.1.3",
"@angular/platform-browser": "^17.1.3",
"@angular/platform-browser-dynamic": "^17.1.3",
"@angular/router": "^17.1.3",
"primeicons": "^7.0.0",
"primeng": "^17.3.1",
"rxjs": "^7.8.1",
"tslib": "^2.6.2",
"zone.js": "^0.14.3"
},
"devDependencies": {
"@angular-devkit/build-angular": "^17.1.3",
"@angular/cli": "^17.1.3",
"@angular/compiler-cli": "^17.1.3",
"@types/node": "^20.11.20",
"typescript": "~5.2.2"
}
}
app.module.ts
import { NgModule } from '@angular/core';
import { BrowserModule } from '@angular/platform-browser';
import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
import { FormsModule } from '@angular/forms';
import { ButtonModule } from 'primeng/button';
import { RadioButtonModule } from 'primeng/radiobutton';
import { AppComponent } from './app.component';
@NgModule({
declarations: [AppComponent],
imports: [
BrowserModule,
BrowserAnimationsModule,
FormsModule,
ButtonModule,
RadioButtonModule
],
bootstrap: [AppComponent]
})
export class AppModule { }
Despite attempting various solutions like updating package.json, re-importing modules, and cleansing/reinstalling node_modules, the issues continue to linger. What steps might I be overlooking or what mistakes could I be making? How can I address these binding and component dilemmas post the upgrade to Angular 17?