placeholder

前言 新的一年到了,在这里先祝大家新年快乐.我们在上一篇spring boot 源码解析12-servlet容器的建立 中 分析 ServerProperties时,发现其类上有@ConfigurationProperties 注解,加上该注解后,就会注入在application.properties中server开头的属性,那么它是怎么生效的呢?我们这篇文章就来分析一下.这篇文章内容比较长,大家慢慢看… @ConfigurationProperties 使用方式 我们首先声明实体类,用于属性的注入.代码如下: public class People { private String name; private Integer age; private List<String> address; private Phone phone; // get set 忽略,自己加上即可.. } public class Phone { private String number; // get set 忽略,自己加上即可.. } 在application.properties 中加入如下配置: com.example.demo.name=${aaa:hi} com.example.demo.age=11 com.example.demo.address[0]=北京 com.example

实例程序的界面效果如下图所示： 在表单中的搜索条件有姓名，学号，成绩。他们在一行中按照水平三等分排列。 在cshtml中用html实现上述表单效果的的代码如下： 1 <form class="form-horizontal" role="form"> 2 <div class="row"> 3 <div class="form-group col-md-4"> 4 <label for="name" class="col-md-2 control-label">姓名</label> 5 <div class="col-md-10"> 6 <input type="text" class="form-control" id="name" placeholder="请输姓名"> 7 </div> 8 </div> 9 <div class="form-group col-md-4"> 10 <label for="name" class="col-md-2 control-label">学号</label> 11 <div class="col-md-10"> 12 <input type="text" class="form-control" id="name" placeholder="请输学号"> 13 </div> 14 </div> 15 <div class="form

This question already has answers here : Is it possible to center text in select box? (18 answers) I have a drop down list which has placeholder text. In other browsers, I have been able to center this placeholder text but in Chrome, text-align:center Here is the HTML for the Select: .bookingform::-webkit-input-placeholder { /* WebKit, Blink, Edge */ color: #FFF; font-size: 18px; font-family: "Raleway"; text-align: center; } .bookingform:-moz-placeholder { /* Mozilla Firefox 4 to 18 */ color: #FFF; opacity: 1; font-size: 18px; font-family: "Raleway"; text-align: center; } .bookingform::-moz

I have read a couple of articles about styling the placeholder of an input field using ::-webkit-input-placeholder in HTML5. It works perfectly, except for one thing. If I try to increase the font-size to a value higher than 16px, the text gets "cut" at the bottom. This happens regardless of height and padding of the input itself. Does anyone know a way of avoiding this problem, either using pure CSS or javascript? I have added a screenshot of two inputfields where the placeholders have an font-size of 20px Jsfiddle: https://jsfiddle.net/bvwdg86x/ The input and its placeholder must have

If I have an expression {{ x }} and x is undefined or null , then how can I display a placeholder for it? I provided one solution in my answer, but I would like to know what other ways there are. Maybe, also for placeholder for promises. {{ counter || '?'}} . Just pure javascript. || can be used as default value. Since it would be different empty messages in each, a generalized directive would not be suitable for many cases. If you want to apply a different class to empty ones, that's also built-in: <div ng-class="{empty: !counter}" ng-bind="counter || ?"></div> JustGoscha I would do it like

I have tried to set UITextField "Placeholder" color as dark. NSAttributedString * search = [[NSAttributedString alloc] initWithString:@"Search" attributes:@{NSForegroundColorAttributeName: [UIColor blackColor]}]; textField.attributedPlaceholder = search; But still UITextField showing light gray color in "Placeholder" . Is it possible to set dark "placeholder" color for UITextField ? Also I Have tried the another method as well [textField setValue:[UIColor blackColor] forKeyPath:@"_placeholderLabel.textColor"]; But both methods are working in iOS 7 , But not working on iOS 6 . Is it possible to

I want to vertically center the text entered in input text boxes on the page. Typical way to achieve this is to set the line-height and height equal. This works on pre iOS 5.0 Safari. However; on iOS 5, Safari displays the typed text vertically centered... But the placeholder text and the cursor appear top aligned. .txtBox { line-height: 3em; height: 3em; } <input type="text" class="txtBox" placeholder="Name"></input> Anyone else facing this issue? Setting line-height: 1; seems to fix this. For me there is only one solution that appears close to perfect in all browsers I tested (Chrome, FF,

一、table数据的呈现（对应查询） 页面代码： @{ ViewBag.Title = "TableGrid"; } @section styles{ <link href="~/Scripts/Plugin/layui/css/layui.css" rel="stylesheet" /> } <h2>TableGrid</h2> <table id="tblInfo" lay-filter="tblInfo"></table> @section scripts{ <script src="~/Scripts/Plugin/layui/layui.all.js"></script> <script src="~/Scripts/Test/TableGrid.js"></script> } TableGrid.js的代码： ; (function () { initQuery(); }()); function initQuery() { layui.use(['table'], function () { $.post('/Test/TableGridQuery', {}, function (rsp) { var table = layui.table, tableId = 'tblInfo'; table.render({ id: tableId , elem: '#' +

Two questions: I am trying to make the placeholder text white. But it doesn't work. I am using Bootstrap 3. JSFiddle demo Another question is how do I change placeholder color not globally. That is, I have multiple fields, I want only one field to have white placeholder, all the others remain in default color. Thanks in advance. html: <form id="search-form" class="navbar-form navbar-left" role="search"> <div class=""> <div class="right-inner-addon"> <i class="icon-search search-submit"></i> <input type="search" class="form-control" placeholder="search" /> </div> </div> </form> css: .right