Simple string[] args => Dictionary<string, object> parser

ParsedArgs.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Collections;

namespace Xcud
{
    /// <summary>
    /// Simple command line argument parser.
    /// E.g.
    ///     ParsedArgs parsed = new ParsedArgs(args);
    ///     
    ///     if (parsed.ContainsKey("PerformanceCounters", true)) // case-insensitive
    ///         AddPerfCounter();
    ///         
    ///     string target = parsed.GetValue("Target", true) as string;
    ///     
    ///     bool isVerbose = (bool)parsed.GetValue("Verbose", true);
    ///         
    /// </summary>
    public class ParsedArgs : Dictionary<string, object>
    {
        public ParsedArgs(string[] args)
        {
            args.ToList().ForEach(x =>
            {
                int dpos = x.IndexOf(":");
                if (dpos > -1)
                    base[x.Substring(1, dpos - 1)] = x.Substring(dpos + 1);
                else
                    base[x.Substring(1)] = true;
            });
        }

        public object GetValue(string key, bool ignoreCase)
        {
            return this.FirstOrDefault(a => string.Compare(a.Key, key, ignoreCase) == 0).Value;
        }   

        public bool ContainsKey(string key, bool ignoreCase)
        {
            return this.Keys.Contains(key, ignoreCase 
                ? StringComparer.InvariantCultureIgnoreCase : StringComparer.InvariantCulture);
        }
    }
}