how to split string

Since you already know that you're searchning for "My number is", you don't need to know what it is.

But because you made the effort to write a question, I guess you're actually looking for whatever comes before the spaces. So you could try this:

string input = "my number is -----------------------------------------890";

System.Text.RegularExpressions.Regex regex = new System.Text.RegularExpressions.Regex(" [ 0-9]");
System.Text.RegularExpressions.Match match = regex.Match(input);

string key = input.SubString(0, match.Index);

The regular expression checks for a space followed by another space or number. So for this to work, there
- must be at least one space between key and the phone number
- must not be any numbers starting words within key.

Or, what about this one:

regex = new Regex("[0-9]{3,}");
Match match = regex.Match(input);
int numberIndex = match.Index;
string key = input.SubString(0, numberIndex);
key = key.Trim()

Ah, forget it all:

string input = "my number is -----------------------------------------890";
string key = input.Trim(new Char[]{' ', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9'});

Hi,

Use like the following:

string original = "my phone number is                                       123456789";
            int pos = original.IndexOf("1");
            string strNew = original.Substring(0, pos).Trim();

In this way ou can able to get the required result.

Thanks

A lazy approach would be to trim all spaces and then but it back together;

var i = "my phone number is                                       123456789";
var o = String.Join(" ", i.Split(' ', StringSplitOptions.RemoveEmptyEntries));

Hope this helps,
Fredrik