placeholder

how to set some default text at the passwordBox wpf? [duplicate]

风流意气都作罢 提交于 2019-12-06 13:44:46
问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Watermark TextBox in WPF May i know how to put some default texts in the password box in WPF? I use MSN messenger as an example. When its default, the password field will show the "password" in the Password Box. When i click and type on the password box, the "password" text will disappear and the dots will replace it. 回答1: You have to create a custom control to do that. XAML: <Window x:Class="WpfTest.Window1"

[无心插柳]简单实现常用的表单校验函数

落爺英雄遲暮 提交于 2019-12-06 11:11:57
有意取而不得,失落而归。无意间有所获,未有喜悦,但珍惜依旧 1.前言 表单校验,相信绝大部分的开发者会遇到过,网上也有很多插件可使用。但当时想着就是简单的校验,没必要引插件,就自己写一个简单的函数。随着校验的需求多样化,函数越来越大。有点轮子的雏形,算是无心插柳吧。现在也该分享出来了,和大家交流交流。函数比较粗糙,如果大家有建议,评论留言吧。 1.关于实现的过程,原理都是参考了《JavaScript设计模式与开发实践》策略模式的一个例子。代码比较简单,大家移步到文末的链接,下载相关的文件,运行调试下就会知道是当中的奥秘了。这里就不做过多的介绍,只展示出可以应付哪些校验场景和使用的方法。 2.虽然我开发项目中会使用这个函数,但今天的文章,主要是出于分享和交流学习,介绍下这种表单校验的方式。目前函数比较粗糙,功能不够强大,待完善,在项目中使用要注意谨慎。 3.文章例子依赖 vue ,只为了方便展示,该函数为原生 js 函数。 2.表单校验的场景 首先,简单列举下表单校验的常用场景 2-1.基础数据校验 关于下面调用的规则:rule,全部封装在这个文件下面的 ruleData 这个变量这里。一看就知道怎么回事了。提供了常用的校验规则,需要的可以扩展。 调用代码 <div id="form-box"> <!--校验单个字段--> <div class="m-from-box"> <p>

Flask_wtf自定义 field样式(Placeholder, Style)、wtf.html、匹配 Bootstrap4、jinja2 quick_form

*爱你&永不变心* 提交于 2019-12-06 10:30:25
Flask-wtf + Flask-bootstrap 简简单单用一条语句就能让 jinja2 渲染出 form:wtf.quick_form(form) 但如果要实现自定义的表单样式,如下图,怎么做呢? Live Demo: http://tianya.heroku.com/wtf 自定义错误提示: 很简单,修改3个地方就行: forms.py class CommentForm (Form) : name = StringField( '' , validators = [Length( 0 , 64 )], render_kw = { "placeholder" : "Your name" , "style" : "background: url(/static/login-locked-icon.png) no-repeat 15px center;text-indent: 28px" }) email = StringField( '' , description = '* We \' ll never share your email with anyone else.' , validators = \ [DataRequired(), Length( 4 , 64 ), Email( message = u" 邮件格式有误 " )], render_kw = {

Element-ui 使用详细介绍

两盒软妹~` 提交于 2019-12-06 10:14:16
一.后台搭建 使用 vue-admin-template 来快速搭建后台管理,它包含了 Element UI & axios & iconfont & permission control & lint,这些搭建后台必要的东西。 Element是(饿了么团队)基于MVVM框架Vue开源出来的一套前端ui组件。官网: element-ui 1.快速搭建 若用vue官网提供的脚手架需要写跟多代码,比如登录界面、主界面菜单等。可以使用 vue-admin-template ,在此基础上开发,而且github上配有详细的模板说明,这样可以节省开发时间。 下载vue-admin-template(vue 2.0)进行解压 在命令提示符切换到该目录,输入命令安装所有依赖: cnpm install 运行 npm run dev 2.工程结构 目录名称 存储内容 build 构建工程相关脚本 config 配置相关 src 工程源码 static 静态资源 src/api 访问后端API src/utils 工具类 src/views 路由组件 src/router 路由 3.项目初始化 关闭语法规范性检查 修改config/index.js : useEslint = false 国际化设置 修改main.js : import locale from 'element‐ui/lib

Get number of components in placeholder, Sitecore

眉间皱痕 提交于 2019-12-06 10:01:39
问题 I have a component that needs to know how many components thats currently added to the very same placeholder, this since it needs to update a value of an html-attribute based on its index within the placeholder. Is there anyway to get either the number of components thats already added to a placeholder, or to get the current-renderers index? Usually I would just use a simple for-loop and set the attribute, but since its a placeholder with components thats not an option. Thanks in advance! 回答1

How do I add a default text to the beginning of an html text area?

浪子不回头ぞ 提交于 2019-12-06 08:05:40
问题 Im building a personal little social network. As part of the design, all statuses should begin with a default text that shouldn't change, similar to "Hi, my name is…" and then the user finishes the rest. Kind of like an HTML5 placeholder that doesn't go away. What would be the best way to accomplish this? 回答1: Note: For some dumb reason, I assumed jQuery (note that you do not need jQuery for this, but makes it a little easier). Here is one solution uses a combination of text-indent and an

How to programmatically get address placeholder text from iphone addressbook?

∥☆過路亽.° 提交于 2019-12-06 07:36:41
问题 I am trying to present a way for the user to enter addresses in a location based application, and I want it to look exactly like the address from the iPhone Contacts/Address Book. This means that I need the placeholder text for each field to be updated according to the country selected. For example- United States placeholders are: Street, City, State , ZIP United Kingdom placeholders are: Street, City, County , Post Code I also have to make sure that the placeholders map to the correct field

How to replace text in a PowerPoint (.ppt) document?

不羁的心 提交于 2019-12-06 07:04:02
问题 What solutions are there? I know only solutions for replacing Bookmarks in Word (.doc) files with Apache POI? Are there also possibilities to change images, layouts, text-styles in .doc and .ppt documents? I think about replacement of areas in Word and PowerPoint documents for bulk processing. Platform: MS-Office 2003 回答1: What are your platform limitations? Obviously Apache POI will get you at least part of the way there. Microsoft's own COM API's are fairly powerful and are documented here.

兼容系列-IE678的兼容

≯℡__Kan透↙ 提交于 2019-12-06 06:36:30
1. 最简单的CSS Hack 区分 IE6 、 IE7 、IE8 css .color{ background-color: #CC00FF; /*所有浏览器都会显示为紫色*/ background-color: #FF0000\9; /*IE6、IE7、IE8会显示红色*/ *background-color: #0066FF; /*IE6、IE7会变为蓝色*/ _background-color: #009933; /*IE6会变为绿色*/ } 上面的样式解释为顺序是 ff、ie8、ie7、ie6显示的结果: 用 FF 浏览, 颜色是紫色 用 IE8 浏览,颜色是红色 用 IE7 浏览,颜色是蓝色 用 IE6 浏览,颜色是绿色 2.IE678支持伪元素 伪元素::after和::before在IE8及以下不支持 兼容IE8可以识别写法 :after 和 :before 兼容IE6/7则需要引入jq插件:jquery.pseudo.js 使用方法: 1、引入jquery 2、引入jquery.pseudo.js 3、添加css,如p{before: "before ";} 代码示例: 3.a标签嵌套img有边框 html代码: IE浏览器: 4.兼容HTML5新标签 第一种方法:使用javascript代码 <!--[if lt IE 9]> <script>

Center align placeholder issue in android

廉价感情. 提交于 2019-12-06 01:38:57
问题 In my android application there is webview to display html. In webview, for input field, we want placeholder to center align. Placing style -webkit-input-placeholder {text-align: center;} but placeholder is not aligning center. it's working fine with browser when we test. Could any one help me on it? 回答1: Android has a bug here :(, centering just won't work. You can use this polyfill: https://github.com/diy/jquery-placeholder and it supports the "force" attribute. That attribute makes it run