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POHow to access the Description attribute on either a property or a const in C#?
 

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  1. POHow to access the Description attribute on either a property or a const in C#?
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    <p>How do you access the Description property on either a const or a property, i.e.,</p> <pre><code>public static class Group { [Description( "Specified parent-child relationship already exists." )] public const int ParentChildRelationshipExists = 1; [Description( "User is already a member of the group." )] public const int UserExistsInGroup = 2; } </code></pre> <p>or</p> <pre><code>public static class Group { [Description( "Specified parent-child relationship already exists." )] public static int ParentChildRelationshipExists { get { return 1; } } [Description( "User is already a member of the group." )] public static int UserExistsInGroup { get { return 2; } } } </code></pre> <p>In the calling class I'd like to access the Description property, i.e.,</p> <pre><code>int x = Group.UserExistsInGroup; string description = Group.UserExistsInGroup.GetDescription(); // or similar </code></pre> <p>I'm open to ideas to other methodologies as well.</p> <p><strong>EDIT:</strong> I should have mentioned that I've seen an example provided here: <a href="https://stackoverflow.com/questions/464889/does-auto-implemented-properties-support-attributes">Do auto-implemented properties support attributes?</a></p> <p>However, I'm looking for a method to access the description attribute without having to enter a string literal into the property type, i.e., I'd rather not do this:</p> <pre><code>typeof(Group).GetProperty("UserExistsInGroup"); </code></pre> <p>Something along the lines of an Extension Method; similar to the following method that will return the Description attribute on an Enum via an Extension Method:</p> <pre><code>public static String GetEnumDescription( this Enum obj ) { try { System.Reflection.FieldInfo fieldInfo = obj.GetType().GetField( obj.ToString() ); object[] attribArray = fieldInfo.GetCustomAttributes( false ); if (attribArray.Length &gt; 0) { var attrib = attribArray[0] as DescriptionAttribute; if( attrib != null ) return attrib.Description; } return obj.ToString(); } catch( NullReferenceException ex ) { return "Unknown"; } } </code></pre>
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