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我有角4應用程序,我想從* ngFor 的列索引並將其附加到HTML元素,我試過了angular.io的例子,但它給了我一個錯誤角度 - * ngFor索引
代碼:
<li *ngFor="let col of Descriptive_FieldsMap;let i = index;">
<a class="ShowHideColumns" data-columnindex="{{i + 1}}">
{{col.FieldName}}
<i id="data-table-col-{{i + 1}}" class="fa fa-minus-square pull-right">
</i>
</a>
</li>
錯誤:
Error: Template parse errors:↵Can't bind to 'columnindex' since it isn't a known property of 'a'. ("tive_FieldsMap;let i = index;">
↵
這個錯誤似乎在說'數據columnindex'不是'' – Arijoon