Converter Helper from string

ConverterHelper

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

namespace PMS_UI.CommonControls.Converters
{
    public static class ConverterHelper
    {
        public static object GetValueFromString(object value, Type type)
        {
            //if (null == value)
            //{ return null; }
            //else
            //{
                HashSet<Type> numericTypes = new HashSet<Type>
                                        {typeof(Byte),
		                                 typeof(Decimal),
		                                 typeof(Double),
		                                 typeof(Int16),
		                                 typeof(Int32),
		                                 typeof(Int64),
		                                 typeof(SByte),
		                                 typeof(Single),
		                                 typeof(UInt16),
		                                 typeof(UInt32),
		                                 typeof(UInt64)
     	                                };

                if (numericTypes.Contains(type.UnderlyingSystemType))
                {
                    HashSet<Type> intTypes = new HashSet<Type>
                                        {typeof(Byte),
 			                             typeof(Int16),
				                         typeof(Int32),
				                         typeof(Int64),
				                         typeof(SByte),
				                         typeof(UInt16),
				                         typeof(UInt32),
 				                         typeof(UInt64)
  			                            };
                    string text = "";
                    if (value == null)
                        text = "0";
                    else
                        text = value.ToString().Replace(NumberFormatInfo.CurrentInfo.NumberGroupSeparator, String.Empty);
                    if (intTypes.Contains(type.UnderlyingSystemType))
                    {
                        try { return Int32.Parse(text); }
                        catch { return null; }
                    }
                    else
                    {
                        // try { return Double.Parse(text); }
                        try { return Decimal.Parse(text); }
                        catch { return null; }
                    }
                }
                else if(type.UnderlyingSystemType == typeof(String) && value == null)
                {
                    return "";
                }
                else 
                    return value;
            }
        //}
    }
}