Create below custom attribute class, which will be used for enum.
public class EnumDescAttribute : Attribute
{
#region Constructor
/// <summary>
/// Initializes a new instance of the <see cref="EnumDescAttribute"/> class.
/// </summary>
/// <param name="description">The description.</param>
public EnumDescAttribute(string description)
{
Description = description;
}
#endregion
#region Properties
/// <summary>
/// Gets or sets the description.
/// </summary>
/// <value>
/// The description.
/// </value>
public string Description { get; set; }
#endregion
}
Sample Enum:
public enum QualifierType
{
[EnumDescAttribute("QQ")]
SubAccount,
[EnumDescAttribute("AA")]
Account,
[EnumDescAttribute("BB")]
LegacyDivision,
[EnumDescAttribute("CC")]
DateRange
}
Create below Extension class
public static class EnumExtensions
{
#region Public methods
/// <summary>
/// Gets the description attribute.
/// </summary>
/// <param name="en">The en.</param>
/// <returns></returns>
public static string GetAttributeValue(this Enum en)
{
string returnValue = en.ToString();
Type type = en.GetType();
//MemberInfo[] memInfo = type.GetMember(en.ToString());
//if (memInfo != null && memInfo.Length > 0)
//{
// object[] attributes = memInfo[0].GetCustomAttributes(typeof(EnumDescAttribute), false);
// if (attributes != null && attributes.Length > 0)
// {
// returnValue = ((EnumDescAttribute)attributes[0]).Description;
// }
//}
EnumDescAttribute attribute = GetAttribute<EnumDescAttribute>(en);
if (attribute != null)
{
returnValue = attribute.Description;
}
return returnValue;
}
/// <summary>
/// Converts to enum.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="value">The value.</param>
/// <returns></returns>
public static T ConvertToEnum<T>(this string value)
{
T returnValue = default(T);
returnValue = (T)Enum.Parse(typeof(T), value, true);
return returnValue;
}
#endregion
#region Private methods
/// <summary>
/// Gets the attribute.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="value">The value.</param>
/// <returns></returns>
private static T GetAttribute<T>(this Enum value) where T : Attribute
{
Type type = value.GetType();
string name = Enum.GetName(type, value);
return type.GetField(name)
.GetCustomAttributes(false)
.OfType<T>()
.FirstOrDefault();
}
#endregion
}
Get enum attribute value:
static void Main(string[] args)
{
Console.WriteLine(consts.Enumerations.QualifierType.Account.GetAttributeValue());
Console.ReadLine();
string value ="Account";
Console.WriteLine(value.ConvertToEnum<consts.Enumerations.QualifierType>().ToString());
Console.ReadLine();
}
public class EnumDescAttribute : Attribute
{
#region Constructor
/// <summary>
/// Initializes a new instance of the <see cref="EnumDescAttribute"/> class.
/// </summary>
/// <param name="description">The description.</param>
public EnumDescAttribute(string description)
{
Description = description;
}
#endregion
#region Properties
/// <summary>
/// Gets or sets the description.
/// </summary>
/// <value>
/// The description.
/// </value>
public string Description { get; set; }
#endregion
}
Sample Enum:
public enum QualifierType
{
[EnumDescAttribute("QQ")]
SubAccount,
[EnumDescAttribute("AA")]
Account,
[EnumDescAttribute("BB")]
LegacyDivision,
[EnumDescAttribute("CC")]
DateRange
}
Create below Extension class
public static class EnumExtensions
{
#region Public methods
/// <summary>
/// Gets the description attribute.
/// </summary>
/// <param name="en">The en.</param>
/// <returns></returns>
public static string GetAttributeValue(this Enum en)
{
string returnValue = en.ToString();
Type type = en.GetType();
//MemberInfo[] memInfo = type.GetMember(en.ToString());
//if (memInfo != null && memInfo.Length > 0)
//{
// object[] attributes = memInfo[0].GetCustomAttributes(typeof(EnumDescAttribute), false);
// if (attributes != null && attributes.Length > 0)
// {
// returnValue = ((EnumDescAttribute)attributes[0]).Description;
// }
//}
EnumDescAttribute attribute = GetAttribute<EnumDescAttribute>(en);
if (attribute != null)
{
returnValue = attribute.Description;
}
return returnValue;
}
/// <summary>
/// Converts to enum.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="value">The value.</param>
/// <returns></returns>
public static T ConvertToEnum<T>(this string value)
{
T returnValue = default(T);
returnValue = (T)Enum.Parse(typeof(T), value, true);
return returnValue;
}
#endregion
#region Private methods
/// <summary>
/// Gets the attribute.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="value">The value.</param>
/// <returns></returns>
private static T GetAttribute<T>(this Enum value) where T : Attribute
{
Type type = value.GetType();
string name = Enum.GetName(type, value);
return type.GetField(name)
.GetCustomAttributes(false)
.OfType<T>()
.FirstOrDefault();
}
#endregion
}
Get enum attribute value:
static void Main(string[] args)
{
Console.WriteLine(consts.Enumerations.QualifierType.Account.GetAttributeValue());
Console.ReadLine();
string value ="Account";
Console.WriteLine(value.ConvertToEnum<consts.Enumerations.QualifierType>().ToString());
Console.ReadLine();
}
