Question

我问类似的问题here但在这个问题中我使用了另一个实现，正好this way以下代码显示了我的实现：

型号：

public class Department {

    public long Id { get; set; }

    [IsDateAfter("Date2", true, ErrorMessage = "O My")]
    public DateTime Date1 { get; set; }
    public DateTime Date2 { get; set; }
    public string Name1 { get; set; }
    public string Name2 { get; set; }

}

自定义验证器：

public sealed class IsDateAfter : ValidationAttribute, IClientValidatable {

    private readonly string testedPropertyName;
    private readonly bool allowEqualDates;

    public IsDateAfter(string testedPropertyName, bool allowEqualDates = false)
  {
        this.testedPropertyName = testedPropertyName;
        this.allowEqualDates = allowEqualDates;
    }

    protected override ValidationResult IsValid(object value, ValidationContext
 validationContext) {
        var propertyTestedInfo = 
validationContext.ObjectType.GetProperty(this.testedPropertyName);
        if (propertyTestedInfo == null) {
            return new ValidationResult(string.Format("unknown property
 {0}", this.testedPropertyName));
        }

        var propertyTestedValue =
 propertyTestedInfo.GetValue(validationContext.ObjectInstance, null);

        if (value == null || !(value is DateTime)) {
            return ValidationResult.Success;
        }

        if (propertyTestedValue == null || !(propertyTestedValue is
 DateTime)) {
            return ValidationResult.Success;
        }

        // Compare values
        if ((DateTime)value >= (DateTime)propertyTestedValue) {
            if (this.allowEqualDates) {
                return ValidationResult.Success;
            }
            if ((DateTime)value > (DateTime)propertyTestedValue) {
                return ValidationResult.Success;
            }
        }

        return new
 ValidationResult(FormatErrorMessage(validationContext.DisplayName));
    }

    public IEnumerable<ModelClientValidationRule> 
GetClientValidationRules(ModelMetadata metadata, ControllerContext context) {
        var rule = new ModelClientValidationRule {
            ErrorMessage = this.ErrorMessageString,
            ValidationType = "isdateafter"
        };
        rule.ValidationParameters["propertytested"] =
 this.testedPropertyName;
        rule.ValidationParameters["allowequaldates"] =
 this.allowEqualDates;
        yield return rule;
    }
}

脚本：

$.validator.unobtrusive.adapters.add(
'isdateafter', ['propertytested', 'allowequaldates'], function (options) {
    options.rules['isdateafter'] = options.params;
    options.messages['isdateafter'] = options.message;
});
$.validator.addMethod("isdateafter", function (value, element, params) {
alert(params.propertytested);
var startdatevalue = $('input[name="' + params.propertytested + '"]').val();
if (!value || !startdatevalue) return true;
return (params.allowequaldates) ? Date.parse(startdatevalue) <= Date.parse(value) :
 Date.parse(startdatevalue) < Date.parse(value);
}, '');

和我的_Layout页面（母版页）

<!DOCTYPE html>
<html>
<head>
<title>@ViewBag.Title</title>
<link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" />
<script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript">
 </script>
<script src="@Url.Content("~/Scripts/MicrosoftAjax.js")" type="text/javascript">
 </script>
<script src="@Url.Content("~/Scripts/MicrosoftMvcAjax.js")" type="text/javascript">
 </script>
<script src="@Url.Content("~/Scripts/MicrosoftMvcValidation.js")" 
 type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" 
 type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript">
 </script>
<script src="@Url.Content("~/Scripts/jQuery.IsDateAfter.js")" 
 type="text/javascript"></script>
</head>
<body>
<div class="page">
    <div id="header">
        <div id="title">
            <h1>
                My MVC Application</h1>
        </div>
        <div id="logindisplay">
            @Html.Partial("_LogOnPartial")
        </div>
        <div id="menucontainer">
            <ul id="menu">
        <li>@Html.ActionLink("Departments", "Index", "Department")</li>
            </ul>
        </div>
    </div>
    <div id="main">
        @RenderBody()
    </div>
    <div id="footer">
    </div>
</div>
</body>
</html>

当然，在编辑和创建视图页面中，其他脚本源如下：

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript">
</script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")"
type="text/javascript"></script>

Create Page Dom的一部分：

<fieldset>
<legend>Department</legend>
<div class="editor-label">
<label for="Date1">Date1</label>
</div>
<div class="editor-field">
<input id="Date1" class="text-box single-line valid" type="text" value="" name="Date1"
 data-val-required="The Date1 field is required." data-val-isdateafter-
 propertytested="Date2" data-val-isdateafter-allowequaldates="False" data-val-
isdateafter="O My" data-val="true">
<span class="field-validation-valid" data-valmsg-replace="true" data-valmsg-
  for="Date1"></span>
</div>
<div class="editor-label">
<label for="Date2">Date2</label>
</div>
<div class="editor-field">
<input id="Date2" class="text-box single-line valid" type="text" value="" name="Date2"
 data-val-required="The Date2 field is required." data-val="true">
<span class="field-validation-valid" data-valmsg-replace="true" data-valmsg-
for="Date2"></span>
</div>

我尝试所有的实现与here相同但是在客户端不起作用并且需要回发，我没有任何其他实现例如在global.asax中的寄存器像this，有人知道吗？我真的很困惑，我尝试了两种方式，但没有一种能给出真正的答案。

Answer 1

你弄乱了你的脚本内容。在_Layout中，您按顺序包含了以下脚本：

<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jQuery.IsDateAfter.js")" type="text/javascript"></script>

现在显然jquery.validate.min.js和jquery.validate.js代表相同的脚本，第一个是缩小版本。但是，由于您没有包含jquery.validate.unobtrusive.js脚本（这在您的视图中稍后会执行），因此您的自定义jQuery.IsDateAfter.js脚本将包含错误，因为它不会知道$.validator.unobtrusive.adapters对象您正在使用。所以这里是布局中的脚本应该如何显示：

<script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script>
<script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script>

您还可以将自定义jQuery.IsDateAfter.js脚本添加到最后的布局中，如果您希望它在许多视图中使用，如果不是，您可以将其添加到视图中：

<script src="@Url.Content("~/Scripts/jQuery.IsDateAfter.js")" type="text/javascript"></script>

这是视图中应该拥有的唯一脚本。您应该从“编辑和创建视图”页面中删除任何其他jquery.*脚本包含。

备注：您还会注意到我已从您的布局中删除了所有Microsoft*.js脚本。它们已过时，不应再在ASP.NET MVC 3中使用。

ASP.NET MVC实现自定义验证器使用IClientValidatable

1 个答案: