前台文本框里添加下面2个事件属性: OnFocus="javascript:if(this.value=='提示文字') {this.value=''}" OnBlur="javascript:if(this.value=='') {this.value='提示文字'}" -----------------------------------例----------------------------------------- <asp:TextBox ID=&

ASP.NET TextBox 当鼠标点击后清空默认提示文字 [ 方法一] 前台代码: <div>    <asp:TextBox ID="txtName" runat="server"></asp:TextBox>    <asp:TextBox ID="txtPwd" runat="server"></asp:TextBox>    <asp:Button

方案(一) 脚本: <script type="text/javascript" language="javascript">        //得到焦点时触发事件        function onFocusFun(element, elementValue) {            if (element.value == elementValue) {                element.value = "";  

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace _04TextBox { public partia

<TextBox Width="150" Margin="5"> <TextBox.Resources> <VisualBrush x:Key="HintText" TileMode="None" Opacity="0.5" Stretch="None" AlignmentX="Left"> <VisualBrush.Visu

if (window.jQuery || window.Zepto) { /** * 设置输入框提示信息 * @param options * @author rubekid */ var setInputTipValue = window.setInputTipValue = function(target, options){ options = options ||{}; var _self = target.get(0); if(_self._initTip){ return false

<input name="username" placeholder="请输入用户名" /> placeholder = "提示文字"

input::-webkit-input-placeholder{ color:red; font-size:20px; ...... }

html代码如下: <tr>    <td>签   名:</td>    <td><input type="text" name="signal" value=""></td> </tr> <tr>     <td>个人简介:</td>    <td  colspan="4"><textar

CSS实现input美化操作默认是为灰色,并且有提示 如下图 鼠标点击后文字消失,鼠标移开后文字显示 给input入下图添加代码 style="color:#cccccc; outline:none;"value="用户名/邮箱/手机号" onfocus="this.value=''" onblur="this.value='用户名/邮箱/手机号'"