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我真的很難從窗體上的按鈕處理程序中訪問一個變量,該變量是擴展的FromPanel的屬性。如果任何人可以提供幫助,我將不勝感激。按鈕處理程序中的擴展ExtJS對象屬性
實例的形式,我嘗試從updateUnitsButton的處理程序中訪問myAttribute:
TrainOverviewPanel = Ext.extend(Ext.FormPanel, {
myAttribute: undefined
,initComponent:function() {
var unitIdField1 = new Ext.form.TextField({
itemId: 'unitIdField1',
flex: 1
});
var unitIdField2 = new Ext.form.TextField({
itemId: 'unitIdField2',
flex: 1
});
var unitIdField3 = new Ext.form.TextField({
itemId: 'unitIdField3',
flex: 1
});
var unitIdFields = new Ext.form.CompositeField({
itemId: 'unitIdFields',
items: [unitIdField1, unitIdField2, unitIdField3],
width: 200
});
var updateUnits = function() {
alert("How can I access attribute: " + this.myAttribute);
}
var updateUnitsButton = new Ext.Button({
tdoId: undefined,
text: 'Update',
handler: updateUnits,
width: 50
});
var updatableUnitIdFields = new Ext.form.CompositeField({
readOnly: false,
fieldLabel: 'Unit ID',
itemId: 'updatableUnitIdFields',
items: [unitIdFields, updateUnitsButton],
width: 300
});
Ext.apply(this, {
width: 450,
height: 130,
margins:'10 0 0 0',
items: [ updatableUnitIdFields ]
});
TrainOverviewPanel.superclass.initComponent.apply(this, arguments);
}
,onRender:function() {
TrainOverviewPanel.superclass.onRender.apply(this, arguments);
}
,refresh: function(data) {
this.myAttribute = data.myAttribute;
var unitIdFields = this.getComponent('updatableUnitIdFields').items.get(0);
unitIdFields.items.get(0).setValue(data.stockId1);
unitIdFields.items.get(1).setValue(data.stockId2);
unitIdFields.items.get(2).setValue(data.stockId3);
}
});
非常感謝,你已經完全從字面上拯救了我的一天 – James
@詹姆斯,沒問題:)我很樂意幫忙 –