difference in string lengths

For the life of me I can't remember this.

I want to find out the difference in length between 2 strings.

but really this is what I am trying to achieve:

to get the length from stringA to stringB - so everything in between these 2 strings, I want to take.

any ideas?

This shows the difference in lengh between 2 strings

Code:

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string a = "Holapapotatop";
string b = "Holapa";
MessageBox.Show ((a.Length - b.Length).ToString());

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This one returns the absolute value

Code:

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string a = "Holapapotato77p";
string b = "Holapa";
MessageBox.Show (string.CompareOrdinal(a,1,b,1,100).ToString());

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Quote:

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Originally Posted by Techno

to get the length from stringA to stringB - so everything in between these 2 strings, I want to take.

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Huh? :confused: Are you after a number or a substring? Also, I think may have misunderstood what CompareOrdinal does jcis. It will return -1, 0, or 1 depending on the order of the two strings based on Unicode values rather than alphabetically as Compare does.

Quote:

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Originally Posted by jmcilhinney

It will return -1, 0, or 1 depending on the order of the two strings based on Unicode values rather than alphabetically as Compare does.

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Actually it returns 9 and that's the diference in lengh between both strings,
Why you say its just -1,0,1?

EDIT: But now I see this just works when a contains b, or b contains a.

I was mistaken to say specifically -1 and 1. It actually returns a value less than zero, zero or a value greater than zero. This value is not supposed to indicate anything about the relative lengths of the two strings, but rhather there relative order when comapison is based on Unicode value rather than "alphabetic". I'm still confused as to what Techno meant by that line I quoted. I thought may be he meant if one string is n characters long and the other is m characters long then return the last abs(n-m) characters of the longer string.

I wish people would articulate their questions properly. :rolleyes:

lol sorry, it was 5 am :|

I want to get the STRING between stringA and stringB

Quote:

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Originally Posted by Techno

lol sorry, it was 5 am :|
I want to get the STRING between stringA and stringB

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you mean both are part of a single string?, like..

"Hi, how are you"

You want to get a substring given 2 strings, i.e. given "Hi" and "you", the result would be ", how are ", is this ok?

I'm still confused too. There are no strings between two string unless you mean that they are both substrings of a third, as jcis suggests. Maybe an example is in order.

what jcis said is correct -

hi, how are you

I want a string from "hi" to "you" so:

, how are

would be the result im after

Code:

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string full = "Hi. how are you?";
string first = "Hi";
string second = "you";

int start = full.IndexOf(first) + first.Length;
int length = full.IndexOf(second) - start;

string middle = full.Substring(start, length);

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You may want to use LastIndexOf for the second substring, although if there is only one instance it won't matter.