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我有以下函数 + 代码来解析和查询 Web 服务请求，然后理论上将结果存储在应用程序中（因为它每天只需要刷新一次，幸运的是当应用程序刷新时）。

//tocommondata is a reference to the common stuff in the webservice
var dCountries = toCommonData.PropertyCountries; //KeyValuePair
var dRegions = toCommonData.Regions;//Array
var dAreas = toCommonData.Areas;//Array


var commonDAT = (from c in dCountries
                 join r in dRegions on c.Key equals r.CountryCode
                 join a in dAreas on r.Id equals a.RegionId
                 join p in dResorts on a.Id equals p.AreaId
                 select new CommonSave
                 {
                   Key = c.Key,
                   Value = c.Value,
                   Id = r.Id,
                   Name = r.Name,
                   dAreasID = a.Id,
                   dAreasName = a.Name,
                 }
                 ).ToList().AsQueryable();


HttpContext.Current.Application["commonDAT"] = commonDAT;

这个位工作正常

foreach (var item in commonDAT)
{
  Response.Write(item.value);

}

**理想情况下，我想将其从 appmemory 中拉出，这样我就可以访问数据，这是我尝试各种（可能是愚蠢的）方法来使用信息的地方。只是把它拔出来就会引起我的问​​题:o( **

//This Seems to kinda work for at least grabbing it (I'm probably doing this REALLY wrong).
IQueryable appCommonRar = (IQueryable)HttpContext.Current.Application["commonDAT"];


回答为标记（删除 .AsQueryable() ） 快速示例

只是为了使它成为一个冗长的答案，一种重新查询和显示结果集的快速方法......

List<CommonSave> appcommon = (List<CommonSave>)HttpContext.Current.Application["commonDAT"];

Response.Write(appcommon.Count()); // Number of responses

var texst = (from xs in appcommon
             where xs.Key == "GBR"
             select xs.dAreasName
             );

foreach (var item in texst)
{
   Response.Write("<br><b>"+item.ToString()+"<b><br>");
}

希望对某人有用。

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1 回答 1

2

如果您要多次查询它，那么为什么不将其保留为列表呢？类型将是List<CommonSave>.

于 2009-07-16T10:44:23.030 回答