How to match a string pattern in a string contained in array

Question

I need to check if a string pattern in the array is contained in a string. I am using the following code but it matches the exact string contained in the array not the pattern so the following will fail. How can I do this?

String[] stringArrayToBlock = { "#", "/", "string1:", "string2" };
String SearchString = "String1:sdfsfsdf";

 if (stringArrayToBlock.Contains(SearchString.Trim().ToLower()))
 { 
   //Do work
 }

by 'string pattern' you mean like '12345',so it should locate all strings which have 5 numbers ? — sajanyamaha
– sajanyamaha, Commented Dec 3, 2012 at 7:22
well it works this way because I need to check If the string in the array matches the string. But now that I am thinking of it I guess it is the same — themhz
– themhz, Commented Dec 3, 2012 at 7:23

horgh · Accepted Answer · 2012-12-03 07:17:12Z

3

I guess you should do it vice versa. Besides, if you're open to LINQ, Enumerable.Any Method is very handy:

string[] stringArrayToBlock = { "#", "/", "string1:", "string2" };
string SearchString = "String1:sdfsfsdf";
string lowerCaseString = SearchString.Trim().ToLower();
if (stringArrayToBlock.Any(s => lowerCaseString.Contains(s)))    
{
    //Do work
}

answered Dec 3, 2012 at 7:17

horgh

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Comments

Rotem · Accepted Answer · 2012-12-03 08:17:26Z

3

Use the LINQ Any() method to determine if any of the elements of the array satisfy the condition. The Contains method used here is that of string, not of Array.

String[] stringArrayToBlock = { "#", "/", "string1:", "string2" };
String SearchString = "String1:sdfsfsdf";

 if (stringArrayToBlock.Any(s => SearchString.Trim().ToLower().Contains(s)))
 { 
     //Do work
 }

edited Dec 3, 2012 at 8:17

answered Dec 3, 2012 at 7:17

Rotem

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4 Comments

horgh Over a year ago

I'll quote Bryan Hong: isn't the condition the other way around?

sajanyamaha Over a year ago

I think the question is regarding locating 'string pattern' not the 'exact string'

themhz Over a year ago

yes I mention that I am looking for the string pattern, anyways, thank you

Rotem Over a year ago

Sorry. Missed that part. Why am I getting upvotes? It's obviously wrong :)

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