asp.net-mvc-2 – 我的MVC2应用程序可以在查询字符串参数上指定

就像荷兰语一样,这是实施.添加’IRouteConstraint’类：

public class QueryStringConstraint : IRouteConstraint 
{ 
    private readonly Regex _regex; 

    public QueryStringConstraint(string regex) 
    { 
        _regex = new Regex(regex,RegexOptions.IgnoreCase); 
    } 

    public bool Match (HttpContextBase httpContext,Route route,string parameterName,RouteValueDictionary values,RouteDirection routeDirection) 
    { 
        // check whether the paramname is in the QS collection
        if(httpContext.Request.QueryString.AllKeys.Contains(parameterName)) 
        { 
            // validate on the given regex
            return _regex.Match(httpContext.Request.QueryString[parameterName]).Success; 
        } 
        // or return false
        return false; 
    } 
}

现在您可以在路线中使用它：

routes.MapRoute("object-contact","{aanbod}",/* ... */,new { pagina = new QueryStringConstraint("some|constraint") });