Angular4_Cannot read property 'value' of und
发布时间：2020-12-17 08:13:46 所属栏目：安全 来源：网络整理
导读：Cannot read property 'value' of undefined 出错代码 div class="modal-body" style="padding: 50px;" p style="text-align:center;"Packaging Type/p select class="form-control customSelect" [(ngModel)]="popuppackagingType" name="popuppackagingTyp
Cannot read property 'value' of undefined出错代码 <div class="modal-body" style="padding: 50px;">
<p style="text-align:center;">Packaging Type</p>
<select class="form-control customSelect" [(ngModel)]="popuppackagingType" name="popuppackagingType" (change)="popupPackagTypeChange(packagingtype.value)"#popuppackagingtype>
<option *ngFor="let type of packagingTypes" value="{{type.value}}">
{{type.key}}
</option>
</select>
</div>
具体出错的地方
(
change)=
"popupPackagTypeChange(packagingtype.value)"
解决方法是
(
change)=
"popupPackagTypeChange(packagingtype?.value)"
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