Question

我有一个numberfield我将maxLength属性设置为enforceMaxLength。因此，该字段不会接受maxLength上的值，到目前为止还不错。

我想根据其他组件值更改此maxLength属性。我尝试了几种方法但没有成功（它设置了值但没有工作）。

问题是，如何在渲染后更改组件的初始属性？

{
    xtype: 'combobox',
    fieldLabel: 'PROMOSYON TİPİ',
    name: 'PROMO_TYPE',
    id: 'promo_type',
    displayField: 'PROMO_TYPE_NAME',
    valueField: 'PROMO_TYPE_VALUE',
    store: promoType,
    queryMode: 'local',
    inputWidth: 250,
    labelWidth: '280px',
    margin: '0 0 15 0',
    listeners: {
        change: function(cb,nv) {
            if (nv != 0 || nv != 2) {
                var pd = Ext.getCmp('promo_disc');
                Ext.apply(pd, {maxLength: 8});
            }
        }
    }
},
{
    xtype: 'numberfield',
    name: 'PROMO_DISCOUNT',
    fieldLabel: 'PROMOSYON İNDİRİMİ',
    id: 'promo_disc',
    inputWidth: 250,
    labelWidth: '280px',
    margin: '0 0 15 0',
    maxLength: 3,
    enforceMaxLength: true,
    minValue: 0
}

Answer 1

根据@forgivenson的想法，我采取了以下方式。

{
    xtype: 'combobox',
    fieldLabel: 'PROMOSYON TİPİ',
    name: 'PROMO_TYPE',
    id: 'promo_type',
    displayField: 'PROMO_TYPE_NAME',
    valueField: 'PROMO_TYPE_VALUE',
    store: promoType,
    queryMode: 'local',
    inputWidth: 250,
    labelWidth: '280px',
    margin: '0 0 15 0',
    listeners: {
        change: function(cb,nv) {
            if (nv != 0 || nv != 2) {
                    // promo_disc-inputEl is an ID for <input> element
                    Ext.get('promo_disc-inputEl').set({maxlength: 8});
            }
        }
    }
},
{
    xtype: 'numberfield',
    name: 'PROMO_DISCOUNT',
    fieldLabel: 'PROMOSYON İNDİRİMİ',
    id: 'promo_disc',
    inputWidth: 250,
    labelWidth: '280px',
    margin: '0 0 15 0',
    maxLength: 3,
    enforceMaxLength: true,
    minValue: 0
},

更改组件的初始属性

1 个答案: