某一个时候，CheckBoxList的选择太多，用户需要一个全选或全取消的功能。下面使用Javascript来实现它。 准备好一个对象： MusicType 代码如下:using System; using System.Collections.Generic; using System.Linq; using System.Web; /// <summary> /// Summary description for MusicType /// </summary> namespace Insus.NET { public class MusicType { private int _ID; private string _TypeName; public int ID { get { re...
写Javascript来判断是否有对RadioButtonList选项选择，效果如下： 准备好RadioButtonList数据源： Cosmetic.vb 代码如下:Imports Microsoft.VisualBasic Namespace Insus.NET Public Class Cosmetic Private _ID As Integer Private _Type As String Private _Name As String Private _Weight As Decimal Private _UM As String Public Property ID As Integer Get Return _ID End Get Set(value As Integer) _ID = value End Set...
用Javascript为DropDownList控件下拉式选择添加一个Item至定义索引位置。 准备数据，创建一个对象，将是存储DropDownList控件每个Item数据。 代码如下:Imports Microsoft.VisualBasic Namespace Insus.NET Public Class Catalog Private _ID As Integer Private _Name As String Public Property ID As Integer Get Return _ID End Get Set(value As Integer) _ID = value End Set End Property Public Property Name As String G...
填充没有任何问题，但是在服务器端却取不出来下拉表中的内容。页面代码如下。 代码如下:<form id="form1" runat="server"> <div> <h3>看看用js填充的dropdownlist控件在服务器端能读出来吗？</h3> 三个级联下拉列表框： <asp:DropDownList runat="server" id="bigTypeList" Width="150"> </asp:DropDownList> <asp:DropDownList runat="server" id="typeList" Width="150"> </asp:DropDownList> <asp:DropDownList runat="server"...
1。 html部分： 代码如下:<table cellSpacing="0" borderColorDark="#ffffff" cellPadding="3" width="460" align="left" borderColorLight="#000000" border="1"> <tr bgColor="#cccccc"> <td align="center" width="180"><b>所有地区</b> <asp:HiddenField ID="HidDistrictId" runat="server" /> </td> <td align="center" width="60"> </td> <td align="center" width="180"><b>已选地区</b></td> </tr> <tr > <td bgcolor="#c...
以后我会陆续的写出这段时间中学习到的东西，与大家一起分享。这篇文章也算是工作中的一个笔记吧，希望给遇到同样问题的朋友，一点小小的帮助。 在 开发工作中，因为要做用到CheckBoxList在客户端用js操作，无论js怎样调试，就是无法获取value的值，很是郁闷，后来Google了下，去了趟CodeProject，算是幸运的。我们在网页上放置一下代码： 代码如下:<asp:CheckBoxList runat="server" ID="chkDemo" RepeatDirection="Horizontal" ...
话不多说，请看下面代码 var row = [{ "code": "1", "model": "APOLLO" }, { "code": "2", "model": "APOLLO M/B1"}]; for (var i = 0; i < row.length; i++) {var addOption = document.createElement("option");addOption.text = row[i]["model"];addOption.value = row[i]["model"];document.getElementById("ddlModel").add(addOption); } <asp:DropDownList ID="ddlModel" name="ddlModel" runat="server" Font-Size="9pt" Wi...
To build out our word game, we will have to be able to share the word across a few places. This means we have to set up a broadcaster that will push the same values to multiple listeners instead of different values each time a listener is added. We will do this by creating a share operator that can capture the broadcaster and track all of the listeners so that we can hook them together and customi...
Many streams of events end when a certain condition is met. When we run into that condition, well want to pass down our own custom values. This lessons walks through adding a done condition to hangman and how we can use new operators to control what happens when its done. Continue with previous post. 1. Set a win logic:let hangman = pipe(map(hangmanLogic), applyOperator(word), stringConcat); h...
After a broadcaster is "done", starting it up again requires calling the broadcaster with the same listener. This creates a kind of "async recursion" where you pass the listener back into the broadcaster each time you set it up. This lesson walks through creating a repeat operator that can start a broadcaster over.Idea for Repeat operator, is that when source broadcaster emit done, then in repeat ...
/*** @param {objectList} [arr=[]] [要对比的数组对象]* @param {string} [field] [每一项要对比的字段]* @returns {boolean} [isNotEqual] [返回boolean值每一项是否相等]*/getEqual(arr = [], field) {if (arr.length && arr.length > 1) { // 超过一条再去校验，只有一条不进行比较let isNotEqual = false;let preValue = arr[0][field] || ; // 默认第一项for (let i = 0; i < arr.length - 1; i++) {con...
一、addEventListener() 方法 （先上实例） <button id="btn">点我</button><p id="demo"></p><script>document.getElementById("btn").addEventListener("click",displayDate);function displayDate(){document.getElementById("demo").innerHTML=Date();}</script>addEventListener() 方法用于向指定元素添加事件句柄 addEventListener() 方法添加的事件句柄不会覆盖已存在的事件句柄 ====小技巧：可以使用 removeEventListen...
我正在向我的网站启用Web通知,并在事件监听器下方将其添加到Service Worker .js文件中,这在边缘和点击事件上可以很好地触发,并打开一个新窗口,但是Chrome没有任何反应,并且事件本身不会触发-self.addEventListener('notificationclick', function (event) {event.notification.close();console.log('Notification notificationclick triggered');event.waitUntil(clients.openWindow(event.notification.data)); })解决方法:刚刚在...
我有一个想要在事件发生时运行函数的类.每当函数调用时,该类实例的函数就不会运行.class Player {constructor() {window.addEventListener('keypress', this.key_press);this.keys_pressed = 0;}key_press(key_press) {if(key_press.key == "w") {console.log(key_press);this.keys_pressed += 1;}console.log(this.keys_pressed);} }每当调用this.key_press时,它将注销NaN.似乎该类的方法没有在运行,而是在运行copy(？).我也尝试过...
在我的主要网站(管理页面之外)中获得list_display功能的最简单方法是什么. 我有一组要选择并执行操作的元素.有任何想法吗？解决方法:到目前为止,称为django-filter的应用程序是实现此功能的最佳和最简单的方法.