Angular: How do I return all data for selected item in mat-select on mat-dialog whilst keeping code for selected default value

user_5181158 0
Viewed 878

I have a modal mat-dialog populating a mat-select. The dropdown is populated with languages. I'm binding the (value) to the ID of the language so it can be preselected with a default value if data is passed into the dialog. However, I would like to bring back the "ID" and the "language description" seen in the dropdown. Is there a way to populate both data fields when returning the data of a mat-select on mat-dialog-close? I do understand why I am getting "data.ID" and "data.translation" back, but how can I get the "data.language" selected populated? Important: dropdown is pre-selected with data.id when a language has previously been selected, so do not want to lose default value functionality unless there is another way.

Thank you in advance.

.html


<div mat-dialog-content class="fullwidth">
    <p>Select language to translate</p>
    <mat-form-field class="fullwidth">      
            <mat-label>Language</mat-label>
                <mat-select [(value)]="data.id">
                    <mat-option *ngFor="let langItem of languageList$;" [value]="langItem.value">            
                    {{langItem.description}}
                    </mat-option>
                </mat-select>
    </mat-form-field>
    
    <mat-form-field class="fullwidth">          
        <mat-label>Enter translation here</mat-label>
        <textarea class="textarea" matInput placeholder="Ex. Translation here..." [(ngModel)]="data.translation"></textarea>    
    </mat-form-field>

</div> <div mat-dialog-actions>   <button mat-stroked-button class="right" [mat-dialog-close]="data" cdkFocusInitial>Save</button>  </div>

.ts

    openTranslationDialog(event, elem): void {
        const dialogRef = this.translateDialog.open(TranslationModalComponent, {
          
          data: {id: String(this._transData?.id), language: this._transData?.language, translation: this._transData?.translation}
        });
        
        dialogRef.afterClosed().subscribe(result => {   
          console.log("Language Description: " + result.description);
          console.log("Language ID: " + result.id);  //only get ID back

});
}

json

{code: "1033", description: "Afrikaans", value: "100000001"}
{code: "1033", description: "Damara", value: "100000002"}
{code: "1033", description: "English", value: "100000000"}
{code: "1033", description: "German", value: "100000003"}
{code: "1033", description: "isiNdebele", value: "100000004"}
{code: "1033", description: "isiXhosa", value: "100000005"}
{code: "1033", description: "isiZulu", value: "100000006"}
angular-material angular html
2 Answers

it's in the [mat-dialog-close] where you indicate what value do you want to received in the "result" when subscribe. So you can create a function in your TranslationModalComponent

getData() {
    const language = this.languageList$.find(
      x => x.value == (this.data as any).id
    );
    return { ...this.data, ...language };
  }

And use

<button [mat-dialog-close]="getData()" ...>Save</button>
user_85581860

Final piece of code that worked, thanks to @Eliseo

getData() {
  if ((this.languageService.languageList.length > 0) && ((this.data as any).id > 0))
  {    
    const language = this.languageList.find(
    x => x.value == (this.data as any).id
  );  
    if (language)
      return { id: language.value, language: language.description, translation: this.data.translation};
    else
      return { id: "", language: "", translation: ""};
  }  
}
user_51811580
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