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我有一個自定義的服務器端驗證程序,但我努力讓客戶端工作。這是我到目前爲止。自定義驗證程序的客戶端驗證asp.net MVC 4
確認者正在檢查進入一個值是至少進入另一個值的百分比。
public sealed class PercentageOfAttribute : ValidationAttribute, IClientValidatable
{
private readonly string sourcePropertyName;
private readonly int minimumPercentage;
public PercentageOfAttribute(string sourcePropertyName, int minimumPercentage)
{
this.sourcePropertyName = sourcePropertyName;
this.minimumPercentage = minimumPercentage;
}
protected override ValidationResult IsValid(object value, ValidationContext validationContext)
{
var propertyName = validationContext.ObjectType.GetProperty(this.sourcePropertyName);
if (propertyName == null)
return new ValidationResult(String.Format("Uknown property {0}", this.sourcePropertyName));
int propertyValue = (int)propertyName.GetValue(validationContext.ObjectInstance, null);
var minValue = (propertyValue/100) * this.minimumPercentage;
if ((int)value > minValue)
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 = "percentageof"
};
rule.ValidationParameters["propertyname"] = this.sourcePropertyName;
rule.ValidationParameters["minimumpercentage"] = this.minimumPercentage;
yield return rule;
}
}
而對於客戶端的JavaScript ...
jQuery.validator.addMethod("percentageof", function (value, element, params) {
var propertyname = params['propertyname'];
var minimumpercentage = param['minimumpercentage'];
var propValue = $('#' + propertyname).val();
var minValue = (propValue/100) * minimumpercentage;
if (value >= minValue) {
return true;
}
return false;
});
jQuery.validator.unobtrusive.adapters.add("percentageof", ["propertyname", "minimumpercentage"], function (options) {
options.rules['propertyname'] = options.params.propertyname;
options.rules['minimumpercentage'] = options.params.minimumpercentage;
options.message['percentageof'] = options.message;
});
我已經調試的addapters.add功能,這是傳遞正確的數據。 「data-val-percentageof- *」值出現在html中並具有正確的值。
的JavaScript錯誤我目前得到的是「$ .validator.methods [方法]是不確定的」。我認爲這意味着我沒有正確設置客戶端驗證器。我已經閱讀了無數的例子和教程,但似乎無法找出一個有效的組合。
如果我刪除所有我的自定義的東西,那麼默認的客戶端驗證完美。
任何人都可以幫助告訴我我做錯了什麼嗎?
編輯:
呈現的HTML如下:
<div class="form-group">
<label class="col-sm-3 control-label" for="PurchasePrice">Purchase Price (£36,000 minimum) *</label>
<div class="col-sm-6">
<input id="PurchasePrice" class="form-control valid" type="text" value="0" name="PurchasePrice" data-val-required="Please enter a Purchase Price" data-val-range-min="36000" data-val-range-max="2147483647" data-val-range="Please enter at least £36,000" data-val-number="The field Purchase Price (£36,000 minimum) * must be a number." data-val="true">
<span class="field-validation-valid" data-valmsg-replace="true" data-valmsg-for="PurchasePrice"></span>
</div>
</div>
<div class="form-group">
<label class="col-sm-3 control-label" for="Deposit">Available Deposit (30% minimum)*</label>
<div class="col-sm-6">
<input id="Deposit" class="form-control" type="text" value="0" name="Deposit" data-val-required="Please enter an Available Deposit" data-val-percentageof-propertyname="PurchasePrice" data-val-percentageof-minimumpercentage="30" data-val-percentageof="Please enter value that is at least 30% of the purchase price" data-val-number="The field Available Deposit (30% minimum)* must be a number." data-val="true">
<span class="field-validation-valid" data-valmsg-replace="true" data-valmsg-for="Deposit"></span>
</div>
</div>
由於這可能是一個JavaScript問題,顯示窗體的相關_rendered_ HTML標記將會很有幫助。 – Sparky
感謝您的回覆 - 我在上面的編輯中添加了HTML。 – Snavebelac