asp.net-mvc – 如何在RegularExpression中忽略大小写?
发布时间:2020-12-30 22:21:39 所属栏目:asp.Net 来源:互联网
导读:我有一个asp.net MVC应用程序.有一个称为File的实体,它有一个名为Name的属性. using System.ComponentModel.DataAnnotations;public class File { ... [RegularExpression(@([^.]+[.](jpg|jpeg|gif|png|wpf|doc|docx|xls|xlsx ...
我有一个asp.net MVC应用程序.有一个称为File的实体,它有一个名为Name的属性. using System.ComponentModel.DataAnnotations; public class File { ... [RegularExpression(@"([^.]+[.](jpg|jpeg|gif|png|wpf|doc|docx|xls|xlsx ...,ErrorMessage = "Invali File Name"] public string Name{ get; set; } ... } 有一个RegularExpressionValidator检查文件扩展名. 解决方法我可以想到的一种方法是编写自定义验证属性:public class IgnorecaseRegularExpressionAttribute : RegularExpressionAttribute,IClientValidatable { public IgnorecaseRegularExpressionAttribute(string pattern): base("(?i)" + pattern) { } public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata,ControllerContext context) { var rule = new ModelClientValidationRule { ValidationType = "icregex",ErrorMessage = ErrorMessage }; // Remove the (?i) that we added in the pattern as this // is not necessary for the client validation rule.ValidationParameters.Add("pattern",Pattern.Substring(4)); yield return rule; } } 然后用它装饰你的模型: [IgnorecaseRegularExpression(@"([^.]+[.](jpg|jpeg|gif|png|wpf|doc|docx|xls|xlsx",ErrorMessage = "Invalid File Name"] public string Name { get; set; } 最后在客户端上写一个适配器: <script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")" type="text/javascript"></script> <script type="text/javascript"> jQuery.validator.unobtrusive.adapters.add('icregex',[ 'pattern' ],function (options) { options.rules['icregex'] = options.params; options.messages['icregex'] = options.message; }); jQuery.validator.addMethod('icregex',function (value,element,params) { var match; if (this.optional(element)) { return true; } match = new RegExp(params.pattern,'i').exec(value); return (match && (match.index === 0) && (match[0].length === value.length)); },''); </script> @using (Html.BeginForm()) { @Html.EditorFor(x => x.Name) @Html.ValidationMessageFor(x => x.Name) <input type="submit" value="OK" /> } 当然,您可以将客户端规则外部化为单独的JavaScript文件,以便您无需在任何地方重复. (编辑:莱芜站长网) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |