C# MVC自定义模型属性转换为HTML属性
我目前(据我所知)滥用ValidateAttribute来获取生成HTML视图时显示的模型属性 我有一个模型属性,带有一个自定义属性(支持一些客户端Json处理): 它在视图中的使用方式如下:C# MVC自定义模型属性转换为HTML属性,c#,model-view-controller,attributes,adapter,C#,Model View Controller,Attributes,Adapter,我目前(据我所知)滥用ValidateAttribute来获取生成HTML视图时显示的模型属性 我有一个模型属性,带有一个自定义属性(支持一些客户端Json处理): 它在视图中的使用方式如下: @Html.TextBoxFor(m => m.City, new { @class = "A", tabindex = 10, title = "B" }) 其结果是: <input class="A" data-val="true" data-val-pair="" data-val-p
@Html.TextBoxFor(m => m.City, new { @class = "A", tabindex = 10, title = "B" })
其结果是:
<input class="A" data-val="true" data-val-pair="" data-val-pair-fld="City" data-val-pair-src="Zipcode" id="City" name="City" tabindex="10" title="B" type="text" value=""/>
我当前的适配器实现:
[AttributeUsage(AttributeTargets.Property)]
public class JsonResultPair: ValidationAttribute
{
private readonly String _source;
private readonly String _field;
public JsonResultPair(String source, String field)
{
_source = source;
_field = field;
}
public String Source { get { return _source; } }
public String Field { get { return _field; } }
}
// thanks: http://stackoverflow.com/questions/4120792/how-can-i-have-a-custom-validationattribute-rendered-as-a-data-val-xx-attribut
public class JsonResultPairAdapter : DataAnnotationsModelValidator<JsonResultPair>
{
private const String Pair = "pair";
private const String PairSource = "src";
private const String PairField = "fld";
public JsonResultPairAdapter(ModelMetadata metadata, ControllerContext context, JsonResultPair attribute) : base(metadata, context, attribute)
{
}
public override IEnumerable<ModelClientValidationRule> GetClientValidationRules()
{
ModelClientValidationRule rule = new ModelClientValidationRule
{
ErrorMessage = ErrorMessage,
ValidationType = Pair
};
rule.ValidationParameters.Add(PairSource, Attribute.Source);
rule.ValidationParameters.Add(PairField, Attribute.Field);
return new []{ rule};
}
}
//谢谢:http://stackoverflow.com/questions/4120792/how-can-i-have-a-custom-validationattribute-rendered-as-a-data-val-xx-attribut
公共类JsonResultPairAdapter:DataAnnotationsModelValidator
{
private const String Pair=“Pair”;
private const String PairSource=“src”;
私有常量字符串PairField=“fld”;
公共JsonResultPairAdapter(ModelMetadata元数据、ControllerContext上下文、JsonResultPair属性):基(元数据、上下文、属性)
{
}
公共重写IEnumerable GetClientValidationRules()
{
ModelClientValidationRule=新的ModelClientValidationRule
{
ErrorMessage=ErrorMessage,
ValidationType=Pair
};
添加(PairSource,Attribute.Source);
rule.ValidationParameters.Add(PairField,Attribute.Field);
返回新的[]{rule};
}
}
我认为这个博客为你的问题提供了一个非常好/详细的答案:
基本步骤包括:
我认为这个博客为你的问题提供了一个非常好/详细的答案: 基本步骤包括:
// thanks: http://stackoverflow.com/questions/4120792/how-can-i-have-a-custom-validationattribute-rendered-as-a-data-val-xx-attribut
public class JsonResultPairAdapter : DataAnnotationsModelValidator<JsonResultPair>
{
private const String Pair = "pair";
private const String PairSource = "src";
private const String PairField = "fld";
public JsonResultPairAdapter(ModelMetadata metadata, ControllerContext context, JsonResultPair attribute) : base(metadata, context, attribute)
{
}
public override IEnumerable<ModelClientValidationRule> GetClientValidationRules()
{
ModelClientValidationRule rule = new ModelClientValidationRule
{
ErrorMessage = ErrorMessage,
ValidationType = Pair
};
rule.ValidationParameters.Add(PairSource, Attribute.Source);
rule.ValidationParameters.Add(PairField, Attribute.Field);
return new []{ rule};
}
}