我正在尝试将纸张切换按钮绑定到布尔值，但是它不起作用。我已经尝试过与$=进行绑定并进行评估?=。我想告诉用户isActive。
<template is="dom-repeat" items={{users}}>
<button class="heading" aria-expanded$="[[isExpanded(opened{{index}})]]" aria-controls="collapse{{index}}" onclick="toggle('#collapse{{index}}')" >{{item.firstName}} {{item.lastName}}<paper-toggle-button style="float: right;" checked$="{{item.isActive}}">Activo</paper-toggle-button></button>
<iron-collapse id="collapse{{index}}" tabindex="0" opened?="{{opened{{index}}}}">
<div class="content horizontal layout">
<div class="flex-1">
<paper-item>
<paper-item-body two-line>
<div>Email</div>
<div secondary>{{item.email}}</div>
</paper-item-body>
</paper-item>
<paper-item>
<paper-item-body two-line>
<div>Teléfono</div>
<div secondary>{{item.phone}}</div>
</paper-item-body>
</paper-item>
<paper-item>
<paper-item-body two-line>
<div>Género</div>
<div secondary>{{item.gender}}</div>
</paper-item-body>
</paper-item>
</div>
</div>
</div>
</iron-collapse>
</template>
JS：
ready: function() {
this.users = [
{firstName: 'Pedro', lastName: 'Vargas', email: '[email protected]', phone:'(222) 212 12 12', gender: 'Masculino', isActive:'true'},
{firstName: 'Andrea', lastName: 'Vargas', email: '[email protected]', phone:'(222) 212 12 13', gender: 'Femenino', isActive:'false'},
{firstName: 'Juan', lastName: 'Martínez', email: '[email protected]', phone:'(222) 212 12 12', gender: 'Masculino', isActive:'true'},
];}
function toggle(selector) {
document.querySelector(selector).toggle();
}
document.querySelector('template[is=dom-repeat]').isExpanded = function(opened) {
return String(opened);
};
问题出在您的阵列上。所有isActive对象都用引号引起来，使它们成为字符串。
您想将它们设为布尔值，因此请删除引号：
{
firstName: 'Pedro',
lastName: 'Vargas',
email: '[email protected]',
phone: '(222) 212 12 12',
gender: 'Masculino',
isActive: true
}
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