在您的matColumnDef内部，您应该有一个< th></th> 和一个< td></td> ，只需以反应形式将输入添加到< td></td> .

如果您希望与示例实际相同，则可以在位置相对元素内创建一个绝对位置元素，该元素将在单击，接收和输入以及在经过某些逻辑后关闭时进行提示，以进行更新formControl.

仍然，您需要formControls并编辑matColumnDef.

示例来自github请求的链接

 < ng容器matColumnDef ="time">< mat-h​​eader-cell * matHeaderCellDef>时间</th>< td mat-cell * matCellDef =让元素；让i =索引" [formGroupName] ="i">< input type ="text" formControlName ="time"占位符="Time"></td></ng-container> 

Does anyone have a good solution to adding inline text editing to a column where you can edit and save and re-edit with mat table like in this example: https://material.io/design/components/data-tables.html#behavior it look like it's still an open issue on gitHub: https://github.com/angular/material2/issues/5982

inside your matColumnDef you should have a <th></th> and a <td></td>, simply add input to the <td></td> with reactive forms.

if you wish it to be practically the same as the material example, you could create a position absolute element inside a positioned-relative element inside the that would propmt on click, receive and input, and close after some logic, to update the formControl.

Still, you'd need formControls, and to edit the matColumnDef.

example taken from the link of the github request

      <ng-container matColumnDef="time">
        <th mat-header-cell *matHeaderCellDef> time </th>
        <td mat-cell *matCellDef="let element; let i = index" [formGroupName]="i"> 
            <input type="text" formControlName="time" placeholder="Time"> 
        </td>
      </ng-container>