Question

Is it possible to pass over a string, finding the white spaces?

For example a data set of:

string myString = "aa bbb cccc dd";

How could I loop through and detect each white space, and manipulate that space?

I need to do this in the most effecient way possible.

Thanks.

UPDATE:
I need to manipulate the space by increasing the white space from an integer value. So for instance increase the space to have 3 white spaces instead of one. I’d like to make it go through each white space in one loop, any method of doing this already in .NET? By white space I mean a ‘ ‘.

Answer 1

If you want to replace all whitespace in one swoop, you can do:

// changes all strings to dashes
myString.Replace(' ', '-');

If you want to go case by case (that is, not just a mass replace), you can loop through IndexOf():

int pos = myString.IndexOf(' ');

while (pos >= 0)
{
    // do whatever you want with myString @ pos

    // find next
    pos = myString.IndexOf(' ', pos + 1);
}

UPDATE

As per your update, you could replace single spaces with the number of spaces specified by a variable (such as numSpaces) as follows:

myString.Replace(" ", new String(' ', numSpaces));