javascript - ExtJs 依赖字段验证

Question

如何验证依赖于另一字段的一个字段？

{
  xtype:          'textfield',
  name:           'name2',
  vtype:          'type',      // how to write the validation code for this if it 
                               // depends on the value of another field?
  allowBlank:     false
}

Answer 1

通过添加您自己的自定义验证器并在其中执行验证。

var field_one = new Ext.form.TextField({
    name: 'field_one',
    fieldLabel: 'Field one'
});

var field_two = new Ext.form.TextField({
    name: 'field_two',
    fieldLabel: 'Field two',
    validator: function(value){
        if(field_one.getValue() != value) {
            return 'Error! Value not identical to field one';
        } else {
            return true;
        }
    }
});