我想让客户端验证与我的自定义数据注解一起工作,我面临的问题是,每当我有一个非必需的实体并提交我的请求(离开NON - 必填字段空白),我的代码的客户端部分踢进来,并尝试验证空白!我怎样才能避免这种情况? 含义,如果用户没有输入任何内容,那么不要验证?自定义数据注释 - 客户端验证
谢谢!
客户端代码:
$.validator.addMethod("emailvalid", function (value, element, params) {
var regex = /^([\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+\.)*[\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~][email protected]((((([a-zA-Z0-9]{1}[a-zA-Z0-9\-]{0,62}[a-zA-Z0-9]{1})|[a-zA-Z])\.)+[a-zA-Z]{2,6})|(\d{1,3}\.){3}\d{1,3}(\:\d{1,5})?)$/;
return regex.test(value);
});
$.validator.unobtrusive.adapters.addBool("emailvalid");
服务器端代码:
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false)]
public class EmailValidAttribute : ValidationAttribute, IClientValidatable
{
private Regex Regex { get; set; }
private string pattern {
get {
return @"^([\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~]+\.)*[\w\!\#$\%\&\'\*\+\-\/\=\?\^\`{\|\}\~][email protected]((((([a-zA-Z0-9]{1}[a-zA-Z0-9\-]{0,62}[a-zA-Z0-9]{1})|[a-zA-Z])\.)+[a-zA-Z]{2,6})|(\d{1,3}\.){3}\d{1,3}(\:\d{1,5})?)$";
}
}
public EmailValidAttribute(string errorMessage)
: base(errorMessage)
{
this.Regex = new Regex(this.pattern);
}
public override bool IsValid(object value)
{
var stringValue = Convert.ToString(value);
// automatically pass if value is null or empty. RequiredAttribute should be used to assert an empty value
if (string.IsNullOrWhiteSpace(stringValue))
{
return true;
}
var m = Regex.Match(stringValue);
// looking for an exact match, not just a search hit
return (m.Success && (m.Index == 0) && (m.Length == stringValue.Length));
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
var rule = new ModelClientValidationRule();
rule.ValidationType = "emailvalid";
rule.ErrorMessage = ErrorMessageString;
yield return rule;
}
}
完全忘记了这样一个真棒功能,修剪!谢谢你,完美的作品:) – Jose
如果你的目标用户满足浏览器要求(IE9 +),你可以使用内建的'String.trim()'函数。 https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim – Vache