SourceSwitch.cs

using System.Security.Permissions;

namespace System.Diagnostics
{
    public class SourceSwitch : Switch
    {
        public SourceLevels Level
        {
            get
            {
                return (SourceLevels)base.SwitchSetting;
            }
            [SecurityPermission(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
            set
            {
                base.SwitchSetting = (int)value;
            }
        }

        public SourceSwitch(string name)
            : base(name, string.Empty)
        {
        }

        public SourceSwitch(string displayName, string defaultSwitchValue)
            : base(displayName, string.Empty, defaultSwitchValue)
        {
        }

        public bool ShouldTrace(TraceEventType eventType)
        {
            return (base.SwitchSetting & (int)eventType) != 0;
        }

        protected override void OnValueChanged()
        {
            base.SwitchSetting = (int)Enum.Parse(typeof(SourceLevels), base.Value, ignoreCase: true);
        }
    }
}