Find a particular string in an string array

Question

I am trying like this:

int Quantity = Array.FindIndex(lineValues, x => x.Equals("Order 1 QTY"));

It is passing for the same string. But I want it to get passed even if there are no spaces between the string.

I want it to get passed with both the string:

"Order 1 QTY"
"Order1QTY"

I want to check for just string excluding spaces.

possible duplicate of C# string comparison ignoring spaces, carriage return or line breaks — Michal Hosala
– Michal Hosala, Commented Oct 13, 2014 at 11:58
Then You will have to buffer the String in another tmp variable, delete the blanks of it and then search again with a search pattern also without blanks. — icbytes
– icbytes, Commented Oct 13, 2014 at 11:58

Mike Perrenoud · Accepted Answer · 2014-10-13 12:03:39Z

3

One approach would be to use a regular expression:

var regex = string.Format("Order\s*{0}\s*QTY", 1);
int Quantity = Array.FindIndex(lineValues, x => Regex.Matches(x, regex));

The regular expression I'd use would be something like this:

Order\s*1\s*QTY

Regular expression visualization

Debuggex Demo

answered Oct 13, 2014 at 12:03

Mike Perrenoud

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fatihk · Accepted Answer · 2014-10-13 11:57:49Z

3

You can do:

string y = "Order 1 QTY";
int Quantity = Array.FindIndex(lineValues, x => x.Equals(y) || x.Equals(y.Replace(" ","")));

answered Oct 13, 2014 at 11:57

fatihk

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4 Comments

Uwe Keim Over a year ago

Probably he also meant to have all permutations of "zero or one blanks"?

user3913587 Over a year ago

I just want the string character excluding white spaces in between .

Patrick Hofman Over a year ago

@MichaelPerrenoud: var lineValues = new string[] { " Order 1 QTY ", " Order 1QTY" }; returns -1 here, while I expected 2.

Mike Perrenoud Over a year ago

@PatrickHofman, yes if the strings were that disparate you'd get some weird results.

Ian · Accepted Answer · 2014-10-13 12:12:00Z

0

Alternatively, remove all the whitespace from your test string, then compare that to "Order1Qty".

int Quantity = Array.FindIndex(lineValues, 
    x => x.Replace(" ", "").Equals("Order1QTY"));

edited Oct 13, 2014 at 12:12

answered Oct 13, 2014 at 12:05

Ian

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