/// <summary>
/// 枚举返回成数据表
/// </summary>
/// <param name="enumType"></param>
/// <returns></returns>
public static DataTable GetEnumTable(Type enumType)
{
if (!enumType.IsEnum)
{
throw new InvalidOperationException();
}
DataTable dt = new DataTable();
dt.Columns.Add("Text", typeof(System.String));
dt.Columns.Add("Value", typeof(System.String));
Type typeDescription = typeof(TextAttribute);
FieldInfo[] fields = enumType.GetFields();
foreach (FieldInfo field in fields)
{
if (field.FieldType.IsEnum == true)
{
DataRow dr = dt.NewRow();
dr["Value"] = ((int)enumType.InvokeMember(field.Name, BindingFlags.GetField, null, null, null)).ToString();
object[] arr = field.GetCustomAttributes(typeDescription, true);
if (arr.Length > 0)
{
TextAttribute aa = (TextAttribute)arr[0];
dr["Text"] = aa.Text;
}
else
{
dr["Text"] = field.Name;
}
dt.Rows.Add(dr);
}
}
return(dt);
}
/// <summary>
/// 获取枚举的列表
/// </summary>
/// <param name="enumType">枚举类型</param>
/// <returns>枚举的键值集合</returns>
public static List <EnumEntity> GetEnumList(Type enumType)
{
if (!enumType.IsEnum)
{
throw new InvalidOperationException();
}
List <EnumEntity> entitys = new List <EnumEntity>();
Type typeDescription = typeof(TextAttribute);
FieldInfo[] fields = enumType.GetFields();
foreach (FieldInfo field in fields)
{
if (field.FieldType.IsEnum == true)
{
EnumEntity entity = new EnumEntity();
entity.Value = (int)enumType.InvokeMember(field.Name, BindingFlags.GetField, null, null, null);
object[] arr = field.GetCustomAttributes(typeDescription, true);
if (arr.Length > 0)
{
TextAttribute aa = (TextAttribute)arr[0];
entity.Text = aa.Text;
}
else
{
entity.Text = field.Name;
}
entitys.Add(entity);;
}
}
return(entitys);
}
/// <summary>
/// 过去枚举属性TEXT
/// </summary>
/// <param name="enumConst">枚举值</param>
/// <param name="enumType">枚举类型 typeOf()</param>
/// <returns></returns>
public static string GetEnumTextVal(int enumConst, Type enumType)
{
if (!enumType.IsEnum)
{
throw new InvalidOperationException();
}
string textVal = "";
Type typeDescription = typeof(TextAttribute);
FieldInfo fieldInfo = enumType.GetField(System.Enum.GetName(enumType, enumConst).ToString());
if (fieldInfo != null)
{
object[] arr = fieldInfo.GetCustomAttributes(typeDescription, true);
if (arr.Length > 0)
{
TextAttribute textAttribute = (TextAttribute)arr[0];
textVal = textAttribute.Text;
}
}
return(textVal);
}
