枚举操作的常用方法，包括获得枚举的value,name,description

public enum SendInfoStateEnum
{

　　 [Description("等待提交")]
等待提交 = 1,

　　　[Description("等待审核")]
等待审核 = 2,
审核成功 = 3,
审核失败 = 4,
正在发送 = 5,

}

绑定枚举到dropdownlist方法如下：

调用如：BindEnumToDropdownList(typeof(SendInfoStateEnum), ddlSendState, new ListItem("--请选择--", "-1"), "-1");

重点是Enum.GetValues(enumType)、Enum.GetName(enumType, i) 2个方法。

/// <summary>
/// 绑定枚举到dropdownlist
/// </summary>
/// <param name="enumType">枚举类型</param>
/// <param name="ddl">dropdownlist</param>
/// <param name="li">初始化第一个选项,可为null</param>
/// <param name="selectValue">选中项的值</param>
public static void BindEnumToDropdownList(Type enumType, DropDownList ddl, ListItem firstItem, string selectValue)
{
ddl.Items.Clear();
if (firstItem != null)
{
ddl.Items.Add(firstItem);
}

foreach (int i in Enum.GetValues(enumType))
{
ListItem li2 = new ListItem(Enum.GetName(enumType, i), i.ToString());
if (li2.Value.Equals(selectValue))
{
li2.Selected = true;
}
ddl.Items.Add(li2);
}
}

获取枚举值的描述标签方法：

调用如：GetDescriptionByName(SendInfoStateEnum.等待提交);

/// <summary>
/// get enum description by name
/// </summary>
/// <typeparam name="T">enum type</typeparam>
/// <param name="enumItemName">the enum name</param>
/// <returns>description string</returns>
public static string GetDescriptionByName<T>(this T enumItemName)
{
FieldInfo fi = enumItemName.GetType().GetField(enumItemName.ToString());

DescriptionAttribute[] attributes = (DescriptionAttribute[])fi.GetCustomAttributes(
typeof(DescriptionAttribute), false);

if (attributes != null && attributes.Length > 0)
{
return attributes[0].Description;
}
else
{
return enumItemName.ToString();
}
}