Asp.net Mvc 表单验证(气泡提示)

将ASP.NET MVC或ASP.NET Core MVC的表单验证改成气泡提示:

 //新建一个js文件(如:jquery.validate.Bubble.js),在所有要验证的页面引用
 (function ($) {

     $("form  .field-validation-valid,form .field-validation-error")
     .each(function () {
         var tip = $(this);
         var fname = tip.attr("data-valmsg-for");
         var input = $("#" + fname);
         var vgName = "vg" + fname;
         $("<span class='vg' id='" + vgName + "'></div>").insertBefore(input);
         input.appendTo("#" + vgName);
         tip.appendTo("#" + vgName);

     });

 })(jQuery);

 .control-label {display: block; text-align:left;}
 @media (min-width: 768px) {
     .control-label {
         display:inline-block;min-width:75px; text-align:right;
     }
 }

 .vg { display: block; position: relative; overflow: visible; }
 .vg .form-control{display:block;max-width:inherit;}
 @media (min-width: 768px) {
     .vg { display: inline-block; }
 }

  .vg .field-validation-error {
         position: absolute; bottom: 101%; min-height: 30px; z-index:; right: 0px;
         background: #ff0000; color: #FFFFFF; padding: 0px; border: 7px solid #ff0000;
         border-radius: 0.7em; font-size: 9pt; font-family: "Helvetica Neue", Helvetica,微软雅黑, Arial, sans-serif;
         max-height: 3.7em; overflow: visible; text-overflow: ellipsis; line-height: 1.3em; opacity: 0.7;
     }

 .vg .field-validation-error::after {
             content: " "; position: absolute; width: 1px; height: 1px; border: 14px solid blue; border-color: transparent;
             border-top-color: #ff0000; display: block; overflow: visible; top: 100%; right: 0px;
 }

//新建一个css文件(如:jquery.validate.Bubble.css),在所有要验证的页面引用

然后您的表单不用做任何修改就可以正常显示了(control-label 相关的样式可以不要(1-6行)).