ReportEnumAttribute.cs

using System;
using System.Text;
using System.Xml;
 
namespace Waher.Reports.Model.Attributes
{
    public class ReportEnumAttribute<T> : ReportAttribute<T>
        where T : Enum
    {
        public ReportEnumAttribute(XmlElement Xml, string AttributeName)
            : base(Xml, AttributeName)
        {
        }
 
        public override T ParseValue(string s)
        {
            if (Enum.TryParse(typeof(T), s, true, out object Result) && Result is T TypedResult)
                return TypedResult;
            else
            {
                StringBuilder sb = new StringBuilder();
 
                sb.Append("Expected a value of type ");
                sb.Append(typeof(T).FullName);
                sb.Append(". Invalid enumerated value: ");
                sb.Append(s);
 
                throw new ArgumentException(sb.ToString(), nameof(s));
            }
        }
    }
}