要列出的数组列表< t>使用.Net?
如何将arraylist转换/转储为列表?我使用arraylist是因为我使用的是ASP.NET配置文件功能,将List存储在配置文件中似乎很痛苦。
How can I convert/dump an arraylist into a list? I'm using arraylist because I'm using the ASP.NET profiles feature and it looked like a pain to store List in profiles.
注意:
另一个选择是将List包装到一个自己的类中,然后取消ArrayList。
Note: The other option would be to wrap the List into an own class and do away with ArrayList.
http://www.ipreferjim.com/site/2009/04/storing-generics-in-asp-net-profile-object/
转换 ArrayList
类型为 T的对象的最简单方法 code>是这样(假设您使用的是.NET 3.5或更高版本):
The easiest way to convert an ArrayList
full of objects of type T
would be this (assuming you're using .NET 3.5 or greater):
List<T> list = arrayList.Cast<T>().ToList();
如果您使用的是3.0或更早版本,则必须循环播放自己:
If you're using 3.0 or earlier, you'll have to loop yourself:
List<T> list = new List<T>(arrayList.Count);
foreach(T item in arrayList) list.Add(item);