BootStrap注意事项小结（五）表单 程序员文章站 2024-01-20 13:10:10 1.基本实例 单独的表单控件会被自动赋予一些全局样式。所有设置了 .form-control类的 、 和 <...</div> <div class="content"> <p><span style="color: #ff0000"><strong>1.基本实例</strong></span></p> <p>单独的表单控件会被自动赋予一些全局样式。所有设置了 .form-control类的 <input>、<textarea> 和 <select> 元素都将被默认设置宽度属性为 width: 100%;。 将 label 元素和前面提到的控件包裹在 .form-group中可以获得最好的排列。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="container"> <form role="form"><div class="form-group"> <label for="name">名称</label> <input type="text" class="form-control" id="name" placeholder="请输入名称"> </div> <div class="form-group"> <label for="inputfile">文件输入</label> <input type="file" id="inputfile"> <p class="help-block">这里是块级帮助文本的实例。</p> </div> <div class="checkbox"> <label> <input type="checkbox"> 请打勾 </label> </div> <button type="submit" class="btn btn-default">提交</button> </form> </div> </body> </html></pre> </div> <p style="text-align: center"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE2MjQ0Ni5wbmc=" title="BootStrap注意事项小结（五）表单"></p> <p>不要将表单组合输入框组混合使用</p> <p>不要将表单组直接和输入框组混合使用。建议将输入框组嵌套到表单组中使用。</p> <p><span style="color: #ff0000"><strong>2.内联表单</strong></span></p> <p>为 <form> 元素添加 .form-inline 类可使其内容左对齐并且表现为inline-block 级别的控件。只适用于视口（viewport）至少在 768px 宽度时（视口宽度再小的话就会使表单折叠）。</p> <p>可能需要手动设置宽度</p> <p>在 bootstrap 中，输入框和单选/多选框控件默认被设置为 width: 100%; 宽度。在内联表单，我们将这些元素的宽度设置为 width: auto;，因此，多个控件可以排列在同一行。根据你的布局需求，可能需要一些额外的定制化组件。</p> <p>一定要添加 label 标签</p> <p>如果你没有为每个输入控件设置 label 标签，屏幕阅读器将无法正确识别。对于这些内联表单，你可以通过为 label 设置 .sr-only类将其隐藏。还有一些辅助技术提供label标签的替代方案，比如aria-label、aria-labelledby 或 title 属性。如果这些都不存在，屏幕阅读器可能会采取使用 placeholder 属性，如果存在的话，使用占位符来替代其他的标记，但要注意，这种方法是不妥当的。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="container"> <form class="form-inline"> <div class="form-group"> <label for="exampleinputname2">name</label> <input type="text" class="form-control" id="exampleinputname2" placeholder="汇智网"> </div> <div class="form-group"> <label class="sr-only" for="exampleinputemail2">email</label> <input type="email" class="form-control" id="exampleinputemail2" placeholder="service@hubwiz.com"> </div> <button type="submit" class="btn btn-default">send invitation</button> </form> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE2NDIzMi5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>3.水平排列的表单</strong></span></p> <p>通过为表单添加 .form-horizontal 类，并联合使用 bootstrap 预置的栅格类，可以将 label 标签和控件组水平并排布局。这样做将改变 .form-group 的行为，使其表现为栅格系统中的行（row），因此就无需再额外添加 .row 了。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="container"> <form class="form-horizontal" role="form"><div class="form-group"> <label for="firstname" class="col-sm-2 control-label">名字</label> <div class="col-sm-10"> <input type="text" class="form-control" id="firstname" placeholder="请输入名字"> </div> </div> <div class="form-group"> <label for="lastname" class="col-sm-2 control-label">姓</label> <div class="col-sm-10"> <input type="text" class="form-control" id="lastname" placeholder="请输入姓"> </div> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <div class="checkbox"> <label> <input type="checkbox"> 请记住我 </label> </div> </div> </div> <div class="form-group"> <div class="col-sm-offset-2 col-sm-10"> <button type="submit" class="btn btn-default">登录</button> </div> </div> </form> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE3OTUzMS5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>4.被支持的控件1</strong></span></p> <p>表单布局实例中展示了其所支持的标准表单控件。</p> <p>输入框</p> <p>包括大部分表单控件、文本输入域控件，还支持所有 html5 类型的输入控件： text、password、datetime、datetime-local、date、month、time、week、number、email、url、search、tel和 color。</p> <p>必须添加类型声明</p> <p>只有正确设置了 type 属性的输入控件才能被赋予正确的样式。</p> <p>输入控件组</p> <p>如需在文本输入域 <input> 前面或后面添加文本内容或按钮控件，请参考输入控件组。</p> <p>文本域</p> <p>支持多行文本的表单控件。可根据需要改变 rows 属性。</p> <div class="jb51code"> <pre class="brush: javascript;"> <textarea class="form-control" rows="3"></textarea> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="container"> <div class="form-group"><input type="text" class="form-control" placeholder="文本输入"></div> <div class="form-group"><textarea class="form-control" rows="4" placeholder="文本框"></textarea></div> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE3OTA2MC5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>5.被支持的控件2</strong></span></p> <p>多选和单选框</p> <p>多选框（checkbox）用于选择列表中的一个或多个选项，而单选框（radio）用于从多个选项中只选择一个。</p> <p>设置了 disabled 属性的单选或多选框都能被赋予合适的样式。对于和多选或单选框联合使用的 <label> 标签，如果也希望将悬停于上方的鼠标设置为“禁止点击”的样式，请将 .disabled 类赋予 .radio、.radio-inline、.checkbox、.checkbox-inline 或 <fieldset>。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="checkbox"> <label> <input type="checkbox" value=""> option one is this and that—be sure to include why it's great </label> </div> <div class="checkbox disabled"> <label> <input type="checkbox" value="" disabled=""> option two is disabled </label> </div> <p></p><div class="radio"> <label> <input type="radio" name="optionsradios" id="optionsradios1" value="option1" checked=""> option one is this and that—be sure to include why it's great </label> </div><p></p> <p></p><div class="radio"> <label> <input type="radio" name="optionsradios" id="optionsradios2" value="option2"> option two can be something else and selecting it will deselect option one </label> </div><p></p> <p></p><div class="radio disabled"> <label> <input type="radio" name="optionsradios" id="optionsradios3" value="option3" disabled=""> option three is disabled </label> </div> </body> </html></pre> </div> <p style="text-align: center"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE3NjY0Ni5wbmc=" title="BootStrap注意事项小结（五）表单"></p> <p>内联单选和多选框</p> <p>通过将 .checkbox-inline 或 .radio-inline 类应用到一系列的多选框（checkbox）或单选框（radio）控件上，可以使这些控件排列在一行。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="radio"> <label class="checkbox-inline"> <input type="checkbox" id="inlinecheckbox1" value="option1"> 1 </label> <label class="checkbox-inline"> <input type="checkbox" id="inlinecheckbox2" value="option2"> 2 </label> <label class="checkbox-inline"> <input type="checkbox" id="inlinecheckbox3" value="option3"> 3 </label> <label class="radio-inline"> <input type="radio" name="inlineradiooptions" id="inlineradio1" value="option1"> 1 </label> <label class="radio-inline"> <input type="radio" name="inlineradiooptions" id="inlineradio2" value="option2"> 2 </label> <label class="radio-inline"> <input type="radio" name="inlineradiooptions" id="inlineradio3" value="option3"> 3 </label> </div> </body> </html></pre> </div> <p>下拉列表（select）</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <select class="form-control"> <option>1</option> <option>2</option> <option>3</option> <option>4</option> <option>5</option> </select> <br> <select multiple="" class="form-control"> ... </select> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE3MjY2Mi5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>6.静态控件</strong></span></p> <p>如果需要在表单中将一行纯文本和 label 元素放置于同一行，为 <p> 元素添加 .form-control-static 类即可。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="container"> <form class="form-horizontal" role="form"> <div class="form-group"> <div class="col-sm-10"> <label class="col-sm-2 control-label">email</label> <p class="form-control-static">email@example.com</p> </div> </div> <div class="form-group"> <label for="inputpassword" class="col-sm-2 control-label">密码</label> <div class="col-sm-10"> <input type="password" class="form-control" id="inputpassword" placeholder="请输入密码"> </div> </div> </form> <form class="form-inline"> <div class="form-group"> <label class="sr-only">email</label> </div> <div class="form-group"> <label for="inputpassword2" class="sr-only">password</label><!--影藏--> <input type="password" class="form-control" id="inputpassword2" placeholder="password"> </div> <button type="submit" class="btn btn-default">confirm identity</button> </form> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE4NTIzMy5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>7.焦点状态</strong></span></p> <p>我们将某些表单控件的默认 outline 样式移除，然后对 :focus 状态赋予box-shadow 属性。</p> <div class="jb51code"> <pre class="brush: javascript;"> <form> <input class="form-control" id="focusinput" type="text" value="demonstrative focus state"> </form></pre> </div> <p>演示:focus 状态</p> <p>在本文档中，我们为上面实例中的输入框赋予了自定义的样式，用于演示 .form-control 元素的 :focus 状态。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="container"> <br> <form><input class="form-control" id="focusedinput" type="text" value="demonstrative focus state"> </form> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE4MzAwNS5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>8.禁用状态</strong></span></p> <p>为输入框设置 disabled 属性可以禁止其与用户有任何交互（焦点、输入等）。被禁用的输入框颜色更浅，并且还添加了 not-allowed 鼠标状态。</p> <div class="jb51code"> <pre class="brush: javascript;"> <input class="form-control" id="disabledinput" type="text" placeholder="disabled input here..." disabled=""></pre> </div> <p>被禁用的 fieldset</p> <p>为<fieldset> 设置 disabled 属性,可以禁用 <fieldset> 中包含的所有控件。</p> <p><a> 标签的链接功能不受影响</p> <p>默认情况下，浏览器会将 <fieldset disabled> 内所有的原生的表单控件（<input>、<select> 和 <button> 元素）设置为禁用状态，防止键盘和鼠标与他们交互。然而，如果如果表单中还包含 <a ... class="btn btn-*"> 元素，这些元素将只被赋予 pointer-events: none 属性。正如在关于禁用状态的按钮章节中（尤其是关于锚点元素的子章节中）所描述的那样，该 css 属性尚不规范，并且在 opera 18 及更低版本的浏览器或 internet explorer 11 总没有得到全面支持，并且不会阻止键盘用户能够获取焦点或激活这些链接。所以为了安全起见，建议使用自定义 javascript 来禁用这些链接。</p> <p>跨浏览器兼容性</p> <p>虽然 bootstrap 会将这些样式应用到所有浏览器上，internet explorer 11 及以下浏览器中的 <fieldset> 元素并不完全支持 disabled 属性。因此建议在这些浏览器上通过 javascript 代码来禁用<fieldset>。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <form class="form-horizontal" role="form"><div class="form-group"> <label for="inputpassword" class="col-sm-2 control-label">禁用</label> <div class="col-sm-10"> <input class="form-control" id="disabledinput" type="text" placeholder="该输入框禁止输入..." disabled> </div> </div> <fieldset disabled> <div class="form-group"> <label for="disabledtextinput" class="col-sm-2 control-label">禁用输入（fieldset disabled）</label> <div class="col-sm-10"> <input type="text" id="disabledtextinput" class="form-control" placeholder="禁止输入"> </div> </div> <div class="form-group"> <label for="disabledselect" class="col-sm-2 control-label">禁用选择菜单（fieldset disabled）</label> <div class="col-sm-10"> <select id="disabledselect" class="form-control"> <option>禁止选择</option> </select> </div> </div> </fieldset> </form> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE4MjM0Ny5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>9.只读状态</strong></span></p> <p>为输入框设置 readonly 属性可以禁止用户修改输入框中的内容。处于只读状态的输入框颜色更浅（就像被禁用的输入框一样），但是仍然保留标准的鼠标状态。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <input class="form-control" type="text" placeholder="readonly input here…" readonly=""> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE5NTg5MC5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>10.校验状态</strong></span></p> <p>bootstrap 对表单控件的校验状态，如 error、warning 和 success 状态，都定义了样式。使用时，添加 .has-warning、.has-error 或 .has-success 类到这些控件的父元素即可。任何包含在此元素之内的.control-label、.form-control 和 .help-block 元素都将接受这些校验状态的样式。</p> <p>将验证状态传达给辅助设备和盲人用户</p> <p>使用这些校验样式只是为表单控件提供一个可视的、基于色彩的提示，但是并不能将这种提示信息传达给使用辅助设备的用户 - 例如屏幕阅读器 - 或者色盲用户。</p> <p>为了确保所有用户都能获取正确信息，bootstrap 还提供了另一种提示方式。例如，你可以在表单控件的 <label> 标签上以文本的形式显示提示信息（就像下面代码中所展示的）；包含一个 glyphicon 字体图标 （还有赋予 .sr-only 类的文本信息 - 参考glyphicon 字体图标实例）；或者提供一个额外的 辅助信息 块。另外，对于使用辅助设备的用户，无效的表单控件还可以赋予一个 aria-invalid="true" 属性。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="form-group has-success"><label class="control-label" for="inputsuccess1">input with success</label> <input type="text" class="form-control" id="inputsuccess1"> </div> <div class="form-group has-warning"> <label class="control-label" for="inputwarning1">input with warning</label> <input type="text" class="form-control" id="inputwarning1"> </div> <div class="form-group has-error"> <label class="control-label" for="inputerror1">input with error</label> <input type="text" class="form-control" id="inputerror1"> </div> <div class="has-success"> <div class="checkbox"> <label> <input type="checkbox" id="checkboxsuccess" value="option1">checkbox with success</label> </div> </div> <div class="has-warning"> <div class="checkbox"> <label> <input type="checkbox" id="checkboxwarning" value="option1">checkbox with warning</label> </div> </div> <div class="has-error"> <div class="checkbox"> <label> <input type="checkbox" id="checkboxerror" value="option1">checkbox with error</label> </div> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE5NzY3Ni5wbmc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>11.添加额外的图标</strong></span></p> <p>你还可以针对校验状态为输入框添加额外的图标。只需设置相应的 .has-feedback 类并添加正确的图标即可。</p> <p>反馈图标（feedback icon）只能使用在文本输入框 <input class="form-control"> 元素上。</p> <p>图标、label 和输入控件组</p> <p>对于不带有 label 标签的输入框以及右侧带有附加组件的输入框组，需要手动为其图标定位。为了让所有用户都能访问你的网站，我们强烈建议为所有输入框添加 label 标签。如果你不希望将label 标签展示出来，可以通过添加 .sr-only 类来实现。如果的确不能添加 label 标签，请调整图标的 top 值。对于输入框组，请根据你的实际情况调整 right 值。</p> <p>向辅助技术设备传递图标的含义</p> <p>为了确保辅助技术- 如屏幕阅读器 - 正确传达一个图标的含义，额外的隐藏的文本应包含在 .sr-only 类中，并明确关联使用了 aria-describedby 的表单控件。或者，以某些其他形式（例如，文本输入字段有一个特定的警告信息）传达含义，例如改变与表单控件实际相关联的 <label> 的文本。</p> <p>虽然下面的例子已经提到各自表单控件本身的 <label> 文本的验证状态，上述技术（使用 .sr-only 文本 和 aria-describedby) ）已经包括了需要说明的目的。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="form-group has-success has-feedback"><label class="control-label" for="inputsuccess2">input with success</label> <input type="text" class="form-control" id="inputsuccess2" aria-describedby="inputsuccess2status"> <span class="glyphicon glyphicon-ok form-control-feedback" aria-hidden="true"></span> <span id="inputsuccess2status" class="sr-only">(success)</span> </div> <div class="form-group has-warning has-feedback"> <label class="control-label" for="inputwarning2">input with warning</label> <input type="text" class="form-control" id="inputwarning2" aria-describedby="inputwarning2status"> <span class="glyphicon glyphicon-warning-sign form-control-feedback" aria-hidden="true"></span> <span id="inputwarning2status" class="sr-only">(warning)</span> </div> <div class="form-group has-error has-feedback"> <label class="control-label" for="inputerror2">input with error</label> <input type="text" class="form-control" id="inputerror2" aria-describedby="inputerror2status"> <span class="glyphicon glyphicon-remove form-control-feedback" aria-hidden="true"></span> <span id="inputerror2status" class="sr-only">(error)</span> </div> <div class="form-group has-success has-feedback"> <label class="control-label" for="inputgroupsuccess1">input group with success</label> <div class="input-group"> <span class="input-group-addon">@</span> <input type="text" class="form-control" id="inputgroupsuccess1" aria-describedby="inputgroupsuccess1status"> </div> <span class="glyphicon glyphicon-ok form-control-feedback" aria-hidden="true"></span> <span id="inputgroupsuccess1status" class="sr-only">(success)</span> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTE5NjczNC5qcGc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>12.控件尺寸</strong></span></p> <p>通过 .input-lg 类似的类可以为控件设置高度，通过 .col-lg-* 类似的类可以为控件设置宽度。</p> <p>高度尺寸</p> <p>创建大一些或小一些的表单控件以匹配按钮尺寸。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <input class="form-control input-lg" type="text" placeholder=".input-lg"> <input class="form-control" type="text" placeholder="default input"> <input class="form-control input-sm" type="text" placeholder=".input-sm"> <select class="form-control input-lg">...</select> <select class="form-control">...</select> <select class="form-control input-sm">...</select> </body> </html></pre> </div> <p style="text-align: center"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTIwNzU0OS5qcGc=" title="BootStrap注意事项小结（五）表单"></p> <p>水平排列的表单组的尺寸</p> <p>通过添加 .form-group-lg 或 .form-group-sm 类，为 .form-horizontal包裹的 label 元素和表单控件快速设置尺寸。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <form class="form-horizontal"> <div class="form-group form-group-lg"> <label class="col-sm-2 control-label" for="formgroupinputlarge">large label</label> <div class="col-sm-10"> <input class="form-control" type="text" id="formgroupinputlarge" placeholder="large input"> </div> </div> <div class="form-group form-group-sm"> <label class="col-sm-2 control-label" for="formgroupinputsmall">small label</label> <div class="col-sm-10"> <input class="form-control" type="text" id="formgroupinputsmall" placeholder="small input"> </div> </div> </form> </body> </html></pre> </div> <p style="text-align: center"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTIwNzA3OC5qcGc=" title="BootStrap注意事项小结（五）表单"></p> <p>调整列（column）尺寸</p> <p>用栅格系统中的列（column）包裹输入框或其任何父元素，都可很容易的为其设置宽度。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <div class="row"> <div class="col-xs-2"> <input type="text" class="form-control" placeholder=".col-xs-2"> </div> <div class="col-xs-3"> <input type="text" class="form-control" placeholder=".col-xs-3"> </div> <div class="col-xs-4"> <input type="text" class="form-control" placeholder=".col-xs-4"> </div> </div> </body> </html></pre> </div> <p style="text-align: center"><span style="color: #ff0000"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTIwNTYzNS5qcGc=" title="BootStrap注意事项小结（五）表单"></span></p> <p><span style="color: #ff0000"><strong>13.辅助文本</strong></span></p> <p>针对表单控件的“块（block）”级辅助文本。</p> <p>与表单控件相关联的帮助文本</p> <p>与表单控件相关联的帮助文本 aria-describedby 属性的表单控件关联，这将确保使用辅助技术- 如屏幕阅读器 - 的用户获取控件焦点或进入控制时显示这个帮助文本。</p> <div class="jb51code"> <pre class="brush: javascript;"> <!doctype html> <html> <head> <link rel="stylesheet" href="/stylesheets/bootstrap.min.css" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" > </head> <body> <form role="form"><span>帮助文本实例</span> <input class="form-control" type="text" placeholder=""> <span class="help-block">一个较长的帮助文本块，超过一行，需要扩展到下一行。本实例中的帮助文本总共有两行。</span> </form> <label class="sr-only" for="inputhelpblock">input with help text</label> <input type="text" id="inputhelpblock" class="form-control" aria-describedby="helpblock"> ... <span id="helpblock" class="help-block">一块帮助文本，突破到一个新的线，可以超越一行。</span> </body> </html></pre> </div> <p style="text-align: center"><img onerror="this.src='/statics/superweb999/images/image_error.jpg'"alt="BootStrap注意事项小结（五）表单" src="/default/index/img?u=aHR0cDovL2ltYWdlczQuMTBxaWFud2FuLmNvbS8xMHFpYW53YW4vMjAxOTA2MTEvYl8wXzIwMTkwNjExMjE0OTIwOTE3Ny5qcGc=" 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