Separate sub string from given String in C#

Question

I am having array of strings lets say

{"Item Revision","Integer Item Revision","Double Item Revision"} .

And I just want to exclude the "revision" part of strings .

Lets say If I am having "Integer Item Revision" string then I just want "Integer Item". Here "Revision" part is common for the all the strings. Is there any solution for it?

Is "Revision" is constant? or are you first looking for which word is common ? — kudlatiger
– kudlatiger, Commented Apr 29, 2016 at 4:56

Backs · Accepted Answer · 2016-04-29 05:38:29Z

7

var array = new[] {"Item Revision","Integer Item Revision","Double Item Revision"};

array = array.Select(o=>o.Replace("Revision",string.Empty).Trim()).ToArray();

OR

var array = new[] {"Item Revision NotRevision"};
Regex rgx = new Regex(@"\bRevision\b");
array = array.Select(o=>rgx.Replace(o,string.Empty).Trim()).ToArray();

edited Apr 29, 2016 at 5:38

answered Apr 29, 2016 at 4:56

Backs

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8 Comments

David Over a year ago

how do you find the intersecting string "revision"? This might be dynamic, rather than fixed string.

jitendragarg Over a year ago

@David read comment from the person who asked the question. It is fixed.

Backs Over a year ago

@David for more complicated cases - regex with \b around the word

David Over a year ago

@jitendragarg, thanks. Just curious to know, if this could be a more general solution.

jitendragarg Over a year ago

Depends on the requirement then. Is it the common part in all strings? Is it supposed to be a database value? Is it supposed to come as a parameter? Are we supposed to calculate it using some logic? Answer will change based on the how we want to find that string. :/

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Yatrix · Accepted Answer · 2016-04-29 04:56:20Z

4

var result = "Item Revision".Replace(" Revision", "");

That'll strip away "Revision" and the leading space.

answered Apr 29, 2016 at 4:56

Yatrix

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2 Comments

Yatrix Over a year ago

@David at no point does OP ask to "find" it. OP wrote "I just want to exclude the "revision" part of strings".

David Over a year ago

it might be. But I am just curious if there is a simple one-line solution to find this literal string? :)

D T · Accepted Answer · 2016-04-29 05:02:18Z

4

Can use for:

 String[] s = { "Item Revision", "Integer Item Revision", "Double Item Revision" };
            String[] tmp = new String[s.Length];
            for (int i = 0; i < s.Length; i++)
            {
                tmp[i] = s[i].Replace("Revision", "");
            }

answered Apr 29, 2016 at 5:02

D T

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1 Comment

D T Over a year ago

Yes, we can update original array. I only want to keep original value, so i create a tmp array. Thanks.

jitendragarg · Accepted Answer · 2016-04-29 05:13:06Z

3

An example fiddle. https://dotnetfiddle.net/vwJBkn

Using string.replace will work, if you know exactly what string you want to remove.

string[] array = new[] {"Item Revision","Integer Item Revision","Double Item Revision"};
    foreach (string i in array)
    {
//Replace console.writeline with your code. 
        Console.WriteLine (i.Replace("Revision", String.Empty));
    }

edited Apr 29, 2016 at 5:13

answered Apr 29, 2016 at 4:58

jitendragarg

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2 Comments

Jcl Over a year ago

You should post the relevant part of code in the answer, just in case dotnetfiddle is down or goes away

jitendragarg Over a year ago

Thanks. That is a good idea. To be honest, I myself updated the same fiddle by mistake, and had to redo it again.

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