我正在尝试使用自定义验证属性来确保复选框最终被选中。但是,在验证触发之前,验证错误会显示(未设置样式)为复选框标签的一部分。
详细说明:
我具有以下属性和属性:
[Display(Name = "TermsAndConditions", ResourceType = typeof(Res.Labels))]
[MustBeTrue(ErrorMessageResourceName = "TermsAndConditionsValidationMessage", ErrorMessageResourceType = typeof(Res.Labels))]
public bool TermsAndConditions { get; set; } = true;
(出于任何原因。默认为true是故意的。在视图上将其交换回false):
@model MyModel
@{
MyModel.TermsAndConditions = false;
}
自定义属性如下:
public class MustBeTrueAttribute : ValidationAttribute, IClientValidatable
{
public override bool IsValid(object value)
{
return value is bool && (bool)value;
}
public IEnumerable<ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
yield return new ModelClientValidationRule
{
ErrorMessage = FormatErrorMessage(Labels.TermsAndConditions),
ValidationType = "mustbetrue"
};
}
}
视图中的HTML看起来像这样:
<div class="checkbox">
@Html.CheckBoxFor(m => m.TermsAndConditions, true)
<div class="state">
<label for="terms">
@Html.Raw(Label.TermsAndConditions)
@Html.ValidationMessageFor(m => m.TermsAndConditions, Label.TermsAndConditionsValidationMessage)
</label>
</div>
</div>
使用HTML.Raw,因为我需要标签来呈现锚元素,但找不到其他方法。
页面加载时生成的HTML是这样的:
<div class="checkbox">
<input data-msg-mustbetrue="You must accept the terms and conditions" data-msg-required="The I aceept the <a href="#">terms and conditions</a>. field is required." data-rule-mustbetrue="true" data-rule-required="true" id="TermsAndConditions" name="TermsAndConditions" type="checkbox" value="true">
<input name="TermsAndConditions" type="hidden" value="false">
<div class="state">
<label for="terms">
I aceept the <a href="#">terms and conditions</a>.
<span class="field-validation-valid" data-valmsg-for="TermsAndConditions" data-valmsg-replace="false">You must accept the terms and conditions</span>
</label>
</div>
</div>
触发验证后,一切都会按预期进行:
<div class="checkbox">
<input data-msg-mustbetrue="You must accept the terms and conditions" data-msg-required="The I aceept the <a href="#">terms and conditions</a>. field is required." data-rule-mustbetrue="true" data-rule-required="true" id="TermsAndConditions" name="TermsAndConditions" type="checkbox" value="true" class="input-validation-error">
<input name="TermsAndConditions" type="hidden" value="false">
<div class="state">
<label for="terms">
I aceept the <a href="#">terms and conditions</a>.
<span class="field-validation-error" data-valmsg-for="TermsAndConditions" data-valmsg-replace="false">You must accept the terms and conditions</span>
</label>
</div>
</div>
我已经用这种东西在墙壁上来回敲打了一段时间,有人能指出我正确的方向吗?拜托,谢谢。
答案 0 :(得分:0)
我把头撞在墙上后终于解决了。
此特定实例是由于缺少CSS。错误在页面上是正常现象,一开始就应该将其隐藏。这是唯一使用自定义属性的地方,因此对我来说,这从来没有发生过,因为所有其他验证都可以使用。
span.field-validation-valid {
display: none;
}
和瞧,