枚举的转换、遍历和绑定到DropDownList

enum month
{
Jan=1,
Feb=2,
Mar=3,
Apr=4,
May=5,
Jun=6,
Jul=7,
Aug=8,
Sep=9,
Oct=10,
Nov=11,
Dec=12
}

month m1 = (month)Enum.Parse(typeof(month), "Jun");
month m2 = (month)6; //强制类型转换
string m3 = Enum.GetName(typeof(month), 1);
int m4 = (int)Enum.Parse(typeof(month), "Jun");
int m5 = (int)month.Jun;

Response.Write(string.Format("m1:{0}<br>m2:{1}<br>m3:{2}<br>m4:{3}<br>m5:{4}", m1, m2, m3,m4,m5));

Type type1 = typeof(month);
ArrayList al = new ArrayList();
foreach (int item in Enum.GetValues(type1)) //遍历枚举
{
//al.Add(new ListItem(((month)Convert.ToInt32(item.ToString())).ToString(), item.ToString()));
al.Add(new ListItem(Enum.GetName(type1, item), ((int)Enum.Parse(typeof(month), item.ToString())).ToString()));
}
this.DropDownList1.DataSource = al;
this.DropDownList1.DataValueField = "value";
this.DropDownList1.DataTextField = "text";
this.DropDownList1.DataBind();