当初拍脑袋想出来的组合筛选排序+分页的实现。

GetUrlImpl.cs

/// <summary>
/// 生成_ListBar 的各项url
/// </summary>
/// <param name="name"></param>
/// <param name="value"></param>
/// <param name="baseUrl"></param>
/// <returns></returns>
private string PrepareUrl4ListBar(string name, string value, string baseUrl)
{
    string newUrl;
    string patternFormat;
    string pattern;
    Regex r;


    if (string.Equals(name, "travelType", StringComparison.InvariantCultureIgnoreCase))
    {
        pattern = @"(sijia|ziyou)";
        r = new Regex(pattern, RegexOptions.IgnoreCase);
        string travelType = value == "14" ? "sijia" : "ziyou";
        if (r.IsMatch(baseUrl))
        {
            newUrl = r.Replace(baseUrl, travelType);
        }
        else
        {
            if (baseUrl.Contains("?"))
            {
                var segs = baseUrl.Split('?');
                newUrl = string.Format("{0}{1}/?{2}", segs[0], travelType, segs[1]);
            }
            else
            {
                newUrl = string.Format("{0}{1}/", baseUrl, travelType);
            }
        }
    }
    else
    {
        // todo: 城市编码根据DepartCity.All()生成
        patternFormat = @"{0}=(true|false|[\d]+|BJS|SHA|CAN|CTU|HKG|OTH|null)?";
        pattern = string.Format(patternFormat, name);
        r = new Regex(pattern, RegexOptions.IgnoreCase);

        string pair = string.Format("{0}={1}", name, value);
        if (string.Equals(name, "pageIndex", StringComparison.InvariantCultureIgnoreCase) && value == "0")
        {
            pair = "";
        }

        if (r.IsMatch(baseUrl))
        {
            newUrl = r.Replace(baseUrl, pair);
        }
        else
        {
            newUrl = string.Format("{0}{1}{2}", baseUrl, baseUrl.Contains("?") ? "&" : "?", pair);
        }
    }

    #region 刷新分页组件

    patternFormat = @"{0}=(true|false|[\d]+)?&?";

    // 切换旅游型态时，刷新分页组件
    if (string.Equals(name, "travelType", StringComparison.OrdinalIgnoreCase))
    {
        pattern = string.Format(patternFormat, "pageIndex");
        r = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
        newUrl = r.Replace(newUrl, "");
    }

    // 切换出发城市时，刷新分页组件
    if (string.Equals(name, "departureCity", StringComparison.OrdinalIgnoreCase))
    {
        pattern = string.Format(patternFormat, "pageIndex");
        r = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
        newUrl = r.Replace(newUrl, "");
    }

    // 切换排序项时，刷新分页组件
    if (string.Equals(name, "sort", StringComparison.OrdinalIgnoreCase))
    {
        pattern = string.Format(patternFormat, "pageIndex");
        r = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
        newUrl = r.Replace(newUrl, "");
    }

    #endregion 刷新分页组件

    return newUrl;
}

PagerModel.cs

public class PagerModel
{
    private bool _enableMore = true;
    private bool _inReverserOrder = true;
    private bool _textVisible = true;

    public string BaseUrl { get; set; }

    /// <summary>
    /// 启用“更多”
    /// </summary>
    public bool EnableMore
    {
        get { return _enableMore; }
        set { _enableMore = value; }
    }

    public Func<string, string, string, string> GetUrl { get; set; }

    /// <summary>
    /// 以反序构造
    /// </summary>
    public bool InReverserOrder
    {
        get { return _inReverserOrder; }
        set { _inReverserOrder = value; }
    }

    public int PageCount { get; set; }

    public int PageIndex { get; set; }

    public bool TextVisible
    {
        get { return _textVisible; }
        set { _textVisible = value; }
    }
}

Sample.cs

// 1
PagerModel.BaseUrl = Url.Action("action", "controller", new { /* 所有传入的参数 */ });
PagerModel.GetUrl = PrepareUrl4ListBar;

// 2

PagerModel.GetUrl = (name, value, baseUrl) =>
                            {
                                string url = string.Format("javascript:showPhoto({0});", value);
                                return url;
                            },