[英]Change classes conditionally Ionic2
I want to change my classe for an element but I don't know how to process with Ionic 2. I tried this way but it's wrong : 我想改变我的classe元素,但我不知道如何处理Ionic 2.我试过这种方式,但这是错的:
<span [ngClass]="{(user.id == this.session.userDefaultId) : 'class1 class2', (user.id != this.session.userDefaultId) : 'class3 class4'}">
...
</span>
Someone can explain me how to do somethink like that please ? 有人可以解释我怎么做那样的想法吗? :)
:)
You can use a simple ternary operator to set the class for your example. 您可以使用简单的三元运算符为您的示例设置类。
<span [ngClass]="(user.id == this.session.userDefaultId) ? 'class1 class2' : 'class3 class4'">
...
</span>
You have to mention the class name first followed by the condition 你必须首先提到类名,然后是条件
<span [ngClass]="{'class1 class2' : (user.id == this.session.userDefaultId), 'class3 class4':(user.id != this.session.userDefaultId)}">
...
</span>
试试这个
<span [class.class1]="user.id == this.session.userDefaultId" [class.class2]="user.id == this.session.userDefaultId" [class.class3]="user.id != this.session.userDefaultId" [class.class4]="user.id != this.session.userDefaultId">
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