Question

我有一个List<T>具有办公地点的属性，我想在运行时为每个列表项添加一个新属性。使用4.0

目前我所拥有的：

//create json object for bing maps consumption
List<Dictionary<string, string>> locations = new List<Dictionary<string, string>>();
mlaLocations.ToList().ForEach(x => {
    locations.Add(new Dictionary<string, string>() { 
        {"where", x.Address.Street1 + ", " + x.Address.City + ", " + x.Address.State + " " + x.Address.PostalCode},
        {"email", x.Email},
        {"fax", x.Fax},
        {"href", "http://www.mlaglobal.com/locations/" +  Utils.CleanString(x.Name) + "/" + x.Id},
        {"name", x.Name},
        {"streetAddress", x.Address.Street1},
        {"city", x.Address.City},
        {"state", x.Address.State},
        {"zip", x.Address.PostalCode}
    });
});
JavaScriptSerializer jss = new JavaScriptSerializer();
Page.ClientScript.RegisterClientScriptBlock(this.GetType(),"","var locations = " + jss.Serialize(locations.ToList()),true);

我想要做的是elimate List<Dictionary<string, string>> locations，只需将href属性添加到mlaLocations对象即可。或者也许有更好的方法可以一起完成这一切。

Answer 1

匿名类型应该可以正常使用：

var locations = mlaLocations.ToList().Select(x => new {
        where = x.Address.Street1 + ", " + x.Address.City,
        email =x.Email }
);

Answer 2

使用ExpandoObject和dynamic：

List<dynamic> locations = //whatever

foreach (dynamic location in locations)
    location.href = "http://www.mlaglobal.com/locations/"
      + Utils.CleanString(location.Name) + "/" + location.Id;

在运行时</t>添加属性到列表<t>

2 个答案: