Javascript 未在UI上重新选择父组件中的成员数据更改
我有一个父组件,它有一个手风琴面板(具有多行/动态行数) 对应的JS如下所示Javascript 未在UI上重新选择父组件中的成员数据更改,javascript,jquery,ember.js,Javascript,Jquery,Ember.js,我有一个父组件,它有一个手风琴面板(具有多行/动态行数) 对应的JS如下所示 accordionPanels: function() { var accordionPanels = []; var self = this; var myRows = this.get('section').myRows; myRows.forEach(function(myRow) { accordionPanels.pushObject({
accordionPanels: function() {
var accordionPanels = [];
var self = this;
var myRows = this.get('section').myRows;
myRows.forEach(function(myRow) {
accordionPanels.pushObject({
panel: {
name: myRow.rowId,
props: {
section: myRow
}
}
});
});
return accordionPanels;
}.property('section.myRows'),
actions: {
removeRow: function(row){
var numberContainers = this.get('section').myRows.length;
for (var i = 0; i < numberContainers; i++){
if(this.get('section').myRows.contains(row.name)){
console.log("row found!");
this.get('section').myRows.removeObject(row.name);
}
}
},
}
<div class="dataBlockItem">
{{my-field field=(field-from-section section "SECTION_NAME" "FIELD_NAME") }}
</div>
{{my-button label="Remove" action="removeRow"}}
儿童hbs如下所示
accordionPanels: function() {
var accordionPanels = [];
var self = this;
var myRows = this.get('section').myRows;
myRows.forEach(function(myRow) {
accordionPanels.pushObject({
panel: {
name: myRow.rowId,
props: {
section: myRow
}
}
});
});
return accordionPanels;
}.property('section.myRows'),
actions: {
removeRow: function(row){
var numberContainers = this.get('section').myRows.length;
for (var i = 0; i < numberContainers; i++){
if(this.get('section').myRows.contains(row.name)){
console.log("row found!");
this.get('section').myRows.removeObject(row.name);
}
}
},
}
<div class="dataBlockItem">
{{my-field field=(field-from-section section "SECTION_NAME" "FIELD_NAME") }}
</div>
{{my-button label="Remove" action="removeRow"}}
{{my field field=(来自“section_NAME”“field_NAME”节的字段)}
{{my button label=“Remove”action=“removeow”}
现在,单击“删除”按钮时,我希望删除相应的行。虽然我确实在父对象中获得了操作(从子对象传递),
即使在执行该行之后
this.get('section').myRows.removeObject(row.name)
UI不会得到更新(即父组件中的数据更改不会反映在子组件中)
我是否需要编写额外的代码/逻辑来反映UI上的更改?您的思路是正确的。您应该能够使用闭包操作来帮助简化连接父组件和子组件操作。请在下面的链接中查看下面的代码和一个非常基本的示例Ember Twiddle。此外,您可能已经看到了这一点,但为了以防万一,这里有一个指向Ember.js指南的链接,该指南提供了组件操作的解释 父组件.hbs
{{#my-accordion accordionPanels=accordionPanels as |accordion| }}
{{my-details-row section=accordion.props.section removeRow=(action 'removeRow' accordion)}}
{{/my-accordion}}
父组件.js
--在这里,只需传递行对象本身即可删除行。。removedObject(行)
子组件.js
--此处不必定义removeow
功能
actions: {
// No need to define the removeRow function
}
尝试
this.get('section.myRows').removeObject(row.name)
,如果您希望触发observer和computed属性,则需要使用get
方法。感谢您的精彩回答…只有一个问题…在引用hbs中的子组件(即在本例中为accordion)时,是否也必须传递操作的参数名称在本例中,传递给动作的accordion
对象只需传递给父组件.hbs中的子对象。如果这个答案不符合你的问题,请告诉我。
<div class="dataBlockItem">
{{my-field field=(field-from-section section "SECTION_NAME" "FIELD_NAME") }}
</div>
{{my-button label="Remove" click=removeRow}}
actions: {
// No need to define the removeRow function
}