对Dictionary操作 查找项和排序 [代码记录]

KeyCollection:

protected void Page_Load(object sender, EventArgs e)

internal class Employee

internal class EmployeeCollection : KeyedCollection<Int32, Employee>

GroupDictionary:

2 internal class GroupDictionary<T> : Dictionary<String, List<T>>

3 {

4 public void Add(String key, T value)

5 {

6 List<T> list = null;

7 if (!this.ContainsKey(key) || !(this.TryGetValue(key, out list)))

8 {

9 list = new List<T>();

10 this.Add(key, list);

11 }

12 list.Add(value);

13 }

14 }