<div id="home" class="tab-pane fade in" style="text-align:left;opacity: 1;" >
<button *ngFor="let tool of toolArray" class="m-btn btn btn-secondary" type="button" (click)="{{tool.ToolMethod}}()" placement="bottom"
ngbTooltip="{{tool.Tooltip}}">
<img src={{tool.ToolImgPath}} alt="" width="24" height="24"/>
</button>
</div>
可以说,我有一些由admin管理的工具,如果用户登录,他可以使用该工具进行编辑。
let toolArray = [
{ToolCategory: "analysis"
ToolId: 96
ToolImgPath: "images/zoom-selection.png"
ToolMethod: "zoomToClickedFeature"
ToolName: "an_zoomto_selected"
Tooltip: "Zoom To Selected Feature"}
]
如果我使用ngFor将其添加到html中,则会出现类似
的错误Got interpolation ({{}}) where expression was expected
答案 0 :(得分:3)
如果该方法是控制器的成员,则应使用this
,例如:(click)="this[tool.ToolMethod]()"
。
这是一个可行的示例:
https://stackblitz.com/edit/angular-q2l54d?file=src%2Fapp%2Fapp.component.html
答案 1 :(得分:2)
将大括号从(click)="{{tool.ToolMethod}}()"
移到(click)="tool.ToolMethod()"
,然后将代码重构为类似的形式,以正确引用相应的方法:
public zoomToClickedFeature() {
console.log("do something");
}
public toolArray = [
{
ToolCategory: "analysis",
ToolId: 96,
ToolImgPath: "images/zoom-selection.png",
ToolMethod: this.zoomToClickedFeature,
ToolName: "an_zoomto_selected",
Tooltip: "Zoom To Selected Feature"
}
];
数组和函数必须是组件的类属性。