How do I extract a substring from a string until the second space is encountered?

Question

I have a string like this:

\"o1 1232.5467 1232.5467 1232.5467 1232.5467 1232.5467 1232.5467\"

How do I extract only \"o1 1232.5467\"?

Answer 1

Get the position of the first space:

int space1 = theString.IndexOf(' ');

The the position of the next space after that:

int space2 = theString.IndexOf(' ', space1 + 1);

Get the part of the string up to the second space:

string firstPart = theString.Substring(0, space2);

The above code put togehter into a one-liner:

string firstPart = theString.Substring(0, theString.IndexOf(' ', theString.IndexOf(' ') + 1));