(Angular Material) with AutoComplete to create dropdown with hierarchical classification

Source: Internet
Author: User

Effects such as

Code implementation

1. Import Module

 import {MatAutocompleteModule} from ‘@angular/material/autocomplete‘;

@NgModule ({
imports:[
Matautocompletemodule
]
})

2. Write List Contents

This . Membernamelist = [ {onoffdist: ' オン ',     items: [' Ding 1 ', ' Xu 2 ', ' Beyo 3 ']      },{onoffdist: ' オフ ',      items: [' Zhao 4 ', ' Lee 5 ']      } ];

3. HTML implementation

<input type="text" name="MemberName" matinput Formcontrolname="MemberName" [matautocomplete]="MemberName" [value]="Costdata.teammember"/> <mat-autocomplete style="font-size:12px; height:30px; " #memberName="Matautocomplete">    <mat-optgroup< Span style= "color: #d4d4d4;" > *ngfor= "let NameList of Membernamelist " [label" = <mat-option style="font-size:12px; height:30px; " *ngfor="Let name of Namelist.items"        [value]="name">          {{name}}</mat-option>        </mat-optgroup>      </mat-autocomplete> completed.

(Angular Material) with AutoComplete to create dropdown with hierarchical classification

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