[AngularJS] angular-formly: expressionProperties

转载于 2015-05-07 03:13:00 发布 · 64 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/Answer1215/p/4483749.html

文章标签：

#javascript #ViewUI

本文介绍 Angular Formly 如何通过强大的 expressionProperties 属性动态更改字段属性，如禁用、隐藏和必填等。通过示例代码展示如何在不同场景下灵活应用这一特性。

angular-formly provides a very simple API to dynamically change properties of your field (like disabled, hidden, and required) using the powerful expressionProperties property on your field.

(function() {

    'use strict';

    var app = angular.module('formlyExample', ['formly', 'formlyBootstrap']);

    app.controller('MainCtrl', function MainCtrl() {
        var vm = this;
        vm.model = {};
        vm.fields = [
            {
                type: 'checkbox',
                key: "control",
                templateOptions: {
                    label: 'Click to show'
                }
            },
            {
                type: 'input',
                key: "nothing",
                templateOptions: {
                    label: "Show when checkbox checked"
                },
                expressionProperties: {
                    hide: function($viewValue, $modelValue, scope) {
                        console.log(scope.model.control);
                        return !scope.model.control;
                    }
                }
            }
        ];
    });

})();