I needed to do a replace using System.RegularExpressions.Regex.Replace() but was finding that if I passed the replacement string from a form, it would not correctly account for the Hexadecimal values I specified correctly. I noticed Expresso was having this same issue shown below:
Instead of replacing \r\n (Carriage Return Line Feed) with a “,” (Hex 2C), it was replacing it with the literal. I noticed this only happened when you passed the replace string in through a form; it would not happen if you hard coded Regex.Replace(“\r\n”,”\x2C”) into your .NET code.
I had to create a method that cleaned up all HEX replace strings from a form. If you have a better way of doing this, please comment.
public string CleanUpRegexReplaceStringFromForm(string str_DataFromForm)
{
// \n The newline character. (ASCII 10)
str_DataFromForm = str_DataFromForm.Replace("\\n", "\n");
// \r The carriage return character. (ASCII 13)
str_DataFromForm = str_DataFromForm.Replace("\\r", "\r");
// \t The tab character. (ASCII 9)
str_DataFromForm = str_DataFromForm.Replace("\\t", "\t");
// \x2C The , character.
str_DataFromForm = str_DataFromForm.Replace("\\t", "\t").Replace("\\x00","\x00");
// \x All other ASCII Characters
str_DataFromForm = str_DataFromForm.Replace("\\x00","\x00");
str_DataFromForm = str_DataFromForm.Replace("\\x01","\x01");
str_DataFromForm = str_DataFromForm.Replace("\\x02","\x02");
str_DataFromForm = str_DataFromForm.Replace("\\x03","\x03");
str_DataFromForm = str_DataFromForm.Replace("\\x04","\x04");
str_DataFromForm = str_DataFromForm.Replace("\\x05","\x05");
str_DataFromForm = str_DataFromForm.Replace("\\x06","\x06");
str_DataFromForm = str_DataFromForm.Replace("\\x07","\x07");
str_DataFromForm = str_DataFromForm.Replace("\\x08","\x08");
str_DataFromForm = str_DataFromForm.Replace("\\x09","\x09");
str_DataFromForm = str_DataFromForm.Replace("\\x0A","\x0A");
str_DataFromForm = str_DataFromForm.Replace("\\x0B","\x0B");
str_DataFromForm = str_DataFromForm.Replace("\\x0C","\x0C");
str_DataFromForm = str_DataFromForm.Replace("\\x0D","\x0D");
str_DataFromForm = str_DataFromForm.Replace("\\x0E","\x0E");
str_DataFromForm = str_DataFromForm.Replace("\\x0F","\x0F");
str_DataFromForm = str_DataFromForm.Replace("\\x10","\x10");
str_DataFromForm = str_DataFromForm.Replace("\\x11","\x11");
str_DataFromForm = str_DataFromForm.Replace("\\x12","\x12");
str_DataFromForm = str_DataFromForm.Replace("\\x13","\x13");
str_DataFromForm = str_DataFromForm.Replace("\\x14","\x14");
str_DataFromForm = str_DataFromForm.Replace("\\x15","\x15");
str_DataFromForm = str_DataFromForm.Replace("\\x16","\x16");
str_DataFromForm = str_DataFromForm.Replace("\\x17","\x17");
str_DataFromForm = str_DataFromForm.Replace("\\x18","\x18");
str_DataFromForm = str_DataFromForm.Replace("\\x19","\x19");
str_DataFromForm = str_DataFromForm.Replace("\\x1A","\x1A");
str_DataFromForm = str_DataFromForm.Replace("\\x1B","\x1B");
str_DataFromForm = str_DataFromForm.Replace("\\x1C","\x1C");
str_DataFromForm = str_DataFromForm.Replace("\\x1D","\x1D");
str_DataFromForm = str_DataFromForm.Replace("\\x1E","\x1E");
str_DataFromForm = str_DataFromForm.Replace("\\x1F","\x1F");
str_DataFromForm = str_DataFromForm.Replace("\\x20","\x20");
str_DataFromForm = str_DataFromForm.Replace("\\x21","\x21");
str_DataFromForm = str_DataFromForm.Replace("\\x22","\x22");
str_DataFromForm = str_DataFromForm.Replace("\\x23","\x23");
str_DataFromForm = str_DataFromForm.Replace("\\x24","\x24");
str_DataFromForm = str_DataFromForm.Replace("\\x25","\x25");
str_DataFromForm = str_DataFromForm.Replace("\\x26","\x26");
str_DataFromForm = str_DataFromForm.Replace("\\x27","\x27");
str_DataFromForm = str_DataFromForm.Replace("\\x28","\x28");
str_DataFromForm = str_DataFromForm.Replace("\\x29","\x29");
str_DataFromForm = str_DataFromForm.Replace("\\x2A","\x2A");
str_DataFromForm = str_DataFromForm.Replace("\\x2B","\x2B");
str_DataFromForm = str_DataFromForm.Replace("\\x2C","\x2C");
str_DataFromForm = str_DataFromForm.Replace("\\x2D","\x2D");
str_DataFromForm = str_DataFromForm.Replace("\\x2E","\x2E");
str_DataFromForm = str_DataFromForm.Replace("\\x2F","\x2F");
str_DataFromForm = str_DataFromForm.Replace("\\x30","\x30");
str_DataFromForm = str_DataFromForm.Replace("\\x31","\x31");
str_DataFromForm = str_DataFromForm.Replace("\\x32","\x32");
str_DataFromForm = str_DataFromForm.Replace("\\x33","\x33");
str_DataFromForm = str_DataFromForm.Replace("\\x34","\x34");
str_DataFromForm = str_DataFromForm.Replace("\\x35","\x35");
str_DataFromForm = str_DataFromForm.Replace("\\x36","\x36");
str_DataFromForm = str_DataFromForm.Replace("\\x37","\x37");
str_DataFromForm = str_DataFromForm.Replace("\\x38","\x38");
str_DataFromForm = str_DataFromForm.Replace("\\x39","\x39");
str_DataFromForm = str_DataFromForm.Replace("\\x3A","\x3A");
str_DataFromForm = str_DataFromForm.Replace("\\x3B","\x3B");
str_DataFromForm = str_DataFromForm.Replace("\\x3C","\x3C");
str_DataFromForm = str_DataFromForm.Replace("\\x3D","\x3D");
str_DataFromForm = str_DataFromForm.Replace("\\x3E","\x3E");
str_DataFromForm = str_DataFromForm.Replace("\\x3F","\x3F");
str_DataFromForm = str_DataFromForm.Replace("\\x40","\x40");
str_DataFromForm = str_DataFromForm.Replace("\\x41","\x41");
str_DataFromForm = str_DataFromForm.Replace("\\x42","\x42");
str_DataFromForm = str_DataFromForm.Replace("\\x43","\x43");
str_DataFromForm = str_DataFromForm.Replace("\\x44","\x44");
str_DataFromForm = str_DataFromForm.Replace("\\x45","\x45");
str_DataFromForm = str_DataFromForm.Replace("\\x46","\x46");
str_DataFromForm = str_DataFromForm.Replace("\\x47","\x47");
str_DataFromForm = str_DataFromForm.Replace("\\x48","\x48");
str_DataFromForm = str_DataFromForm.Replace("\\x49","\x49");
str_DataFromForm = str_DataFromForm.Replace("\\x4A","\x4A");
str_DataFromForm = str_DataFromForm.Replace("\\x4B","\x4B");
str_DataFromForm = str_DataFromForm.Replace("\\x4C","\x4C");
str_DataFromForm = str_DataFromForm.Replace("\\x4D","\x4D");
str_DataFromForm = str_DataFromForm.Replace("\\x4E","\x4E");
str_DataFromForm = str_DataFromForm.Replace("\\x4F","\x4F");
str_DataFromForm = str_DataFromForm.Replace("\\x50","\x50");
str_DataFromForm = str_DataFromForm.Replace("\\x51","\x51");
str_DataFromForm = str_DataFromForm.Replace("\\x52","\x52");
str_DataFromForm = str_DataFromForm.Replace("\\x53","\x53");
str_DataFromForm = str_DataFromForm.Replace("\\x54","\x54");
str_DataFromForm = str_DataFromForm.Replace("\\x55","\x55");
str_DataFromForm = str_DataFromForm.Replace("\\x56","\x56");
str_DataFromForm = str_DataFromForm.Replace("\\x57","\x57");
str_DataFromForm = str_DataFromForm.Replace("\\x58","\x58");
str_DataFromForm = str_DataFromForm.Replace("\\x59","\x59");
str_DataFromForm = str_DataFromForm.Replace("\\x5A","\x5A");
str_DataFromForm = str_DataFromForm.Replace("\\x5B","\x5B");
str_DataFromForm = str_DataFromForm.Replace("\\x5C","\x5C");
str_DataFromForm = str_DataFromForm.Replace("\\x5D","\x5D");
str_DataFromForm = str_DataFromForm.Replace("\\x5E","\x5E");
str_DataFromForm = str_DataFromForm.Replace("\\x5F","\x5F");
str_DataFromForm = str_DataFromForm.Replace("\\x60","\x60");
str_DataFromForm = str_DataFromForm.Replace("\\x61","\x61");
str_DataFromForm = str_DataFromForm.Replace("\\x62","\x62");
str_DataFromForm = str_DataFromForm.Replace("\\x63","\x63");
str_DataFromForm = str_DataFromForm.Replace("\\x64","\x64");
str_DataFromForm = str_DataFromForm.Replace("\\x65","\x65");
str_DataFromForm = str_DataFromForm.Replace("\\x66","\x66");
str_DataFromForm = str_DataFromForm.Replace("\\x67","\x67");
str_DataFromForm = str_DataFromForm.Replace("\\x68","\x68");
str_DataFromForm = str_DataFromForm.Replace("\\x69","\x69");
str_DataFromForm = str_DataFromForm.Replace("\\x6A","\x6A");
str_DataFromForm = str_DataFromForm.Replace("\\x6B","\x6B");
str_DataFromForm = str_DataFromForm.Replace("\\x6C","\x6C");
str_DataFromForm = str_DataFromForm.Replace("\\x6D","\x6D");
str_DataFromForm = str_DataFromForm.Replace("\\x6E","\x6E");
str_DataFromForm = str_DataFromForm.Replace("\\x6F","\x6F");
str_DataFromForm = str_DataFromForm.Replace("\\x70","\x70");
str_DataFromForm = str_DataFromForm.Replace("\\x71","\x71");
str_DataFromForm = str_DataFromForm.Replace("\\x72","\x72");
str_DataFromForm = str_DataFromForm.Replace("\\x73","\x73");
str_DataFromForm = str_DataFromForm.Replace("\\x74","\x74");
str_DataFromForm = str_DataFromForm.Replace("\\x75","\x75");
str_DataFromForm = str_DataFromForm.Replace("\\x76","\x76");
str_DataFromForm = str_DataFromForm.Replace("\\x77","\x77");
str_DataFromForm = str_DataFromForm.Replace("\\x78","\x78");
str_DataFromForm = str_DataFromForm.Replace("\\x79","\x79");
str_DataFromForm = str_DataFromForm.Replace("\\x7A","\x7A");
str_DataFromForm = str_DataFromForm.Replace("\\x7B","\x7B");
str_DataFromForm = str_DataFromForm.Replace("\\x7C","\x7C");
str_DataFromForm = str_DataFromForm.Replace("\\x7D","\x7D");
str_DataFromForm = str_DataFromForm.Replace("\\x7E","\x7E");
str_DataFromForm = str_DataFromForm.Replace("\\x7F", "\x7F");
return str_DataFromForm;
}