ReportTimeSpanAttribute.cs

using System;
using System.Xml;
 
namespace Waher.Reports.Model.Attributes
{
    public class ReportTimeSpanAttribute : ReportAttribute<TimeSpan>
    {
        public ReportTimeSpanAttribute(XmlElement Xml, string AttributeName)
            : base(Xml, AttributeName)
        {
        }
 
        public override TimeSpan ParseValue(string s)
        {
            if (TimeSpan.TryParse(s, out TimeSpan Value))
                return Value;
            else
                throw new ArgumentException("Invalid TimeSpan value: " + s, nameof(s));
        }
    }
}