通过 for 循环将项目添加到列表中答案

【问题标题】：adding items into list by for loops通过 for 循环将项目添加到列表中
【发布时间】：2014-02-05 06:41:36
【问题描述】：

我正在为 windows phone 7 创建图表。

这是返回的每个小贩的 foreach：

void dbSvc_retrievepopularhawkerCompleted(object sender, RouteServiceRef.retrievepopularhawkerCompletedEventArgs e)
{
    List<RouteServiceRef.Hawker> recommendPlaceList;
    recommendPlaceList = e.Result.Cast<RouteServiceRef.Hawker>().ToList();

    string hawkername = "";
    string address = "";
    string postal = "";
    double coordX = 0.0;
    double coordY = 0.0;
    double popularity = 0;



    foreach (RouteServiceRef.Hawker rp in recommendPlaceList)
    {
        hawkername = rp.hawkername;
        address = rp.address;
        postal = rp.postal;
        coordX = rp.xcoord;
        coordY = rp.ycoord;
        popularity = rp.popularity;


    }

我必须将上述代码更改为位于此城市列表中：

 List<City> cities = new List<City> { new City { Name = "CLE", Population = 2250871 }, new City { Name = "CMH", Population = 1773120 }, new City { Name = "CVG", Population = 2155137 }, new City { Name = "DET", Population = 4425110 } };

如：List<City> cities = new List<City> { new City Name = hawkername, Population = popularity }

以便我可以绑定到我的图表：

 ColumnSeries bs = ChartControl.Series[0] as ColumnSeries; bs.ItemsSource = cities;

我不知道如何混合它们，有人可以指导我吗？因为我不想硬编码里面的名字和人口。

【问题讨论】：

标签： c# windows-phone-7 charts silverlight-3.0

【解决方案1】：

这很简单，只需按照下面的代码即可。

在 foreach 循环上方声明 City 列表，并在每次迭代时将新项目添加到列表中

List<City> cities = new List<City> ();

foreach (RouteServiceRef.Hawker rp in recommendPlaceList)
    {
        hawkername = rp.hawkername;
        address = rp.address;
        postal = rp.postal;
        coordX = rp.xcoord;
        coordY = rp.ycoord;
        popularity = rp.popularity;
        cities.Add(new City(){Name = hawkername, Population = popularity });
    }

这也会在 foreach 循环完成时填充城市列表。

【讨论】：