Split a string by capital letters in asp.net c#

/////////////// c#

///////// Method 1.

public string String_SplitWithUpperCase(string Str)

        {

            var r = new System.Text.RegularExpressions.Regex(@"

                (?<=[A-Z])(?=[A-Z][a-z]) |

                 (?<=[^A-Z])(?=[A-Z]) |

                 (?<=[A-Za-z])(?=[^A-Za-z])", System.Text.RegularExpressions.RegexOptions.IgnorePatternWhitespace);

            return r.Replace(Str, " ");

        }

///////// Method 2.

public string String_SplitWithUpperCase(string Str)

        {

var r =System.Text.RegularExpressions.Regex.Matches(Str, @"([A-Z][a-z]+)")

                      .Cast<System.Text.RegularExpressions.Match>()

                      .Select(m => m.Value);

            string result = string.Join(" ", r);

        }

///////// Method 3.

public string String_SplitWithUpperCase(string Str)

        {

var r = new System.Text.StringBuilder();

            foreach (var ch in Str)

            {

                if (char.IsUpper(ch) && r.Length > 0)

                {

                    r.Append(' ');

                }

                r.Append(ch);

            }

            return r.ToString();

        }

/////////////// Call function

     public void getstring()

        {

          string result=  String_SplitWithUpperCase("ILoveMyIndia");

        }

///////////////////// RESULT

I Love My India