C# Asp.net MVC 分頁時傳參場景 動態生成QueryString

C# Asp.net MVC 分頁時傳參場景 動態生成QueryString

1. 獲得url

2.解析query string，將外部傳入的匿名對象的key/value添加進去

3. 添加該頁面特殊的key/value

4.合並url

var raw = HttpContext.Current.Request.Url.AbsoluteUri;
    string[] separateURL = raw.Split('?');

//if found ? parse query string else return empty HttpValueCollection
    var queryString = separateURL.Length == 2 ? HttpUtility.ParseQueryString(separateURL[1]) : HttpUtility.ParseQueryString();

    //used to add additional query string key/value (pass anonymous object)
    //e.g :
    //@Html.DisplayFor(x => x.Paging, new
    //        {
    //            AdditionalViewData = new {
    //            Model.OrdersFilter, Model.SearchKeyword, Model.PickupDateRange,
    //            Model.RequestDateRange, Model.DeliveryDateRange
    //        }

//pass in from outside
    if (ViewData[AdditionalViewData] != null)
    {
        foreach (var str in ViewData[AdditionalViewData].GetType().GetProperties())
        {
            queryString[str.Name] = (str.GetValue(ViewData[AdditionalViewData], null) ?? string.Empty).ToString();
        }
    }

//one more specific query strings on this page
            @{
                 queryString[xxx] = yyy;
            }
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