Using C# to check if string contains a string in string array

c# arrays string search
Theomax picture Theomax · May 26, 2010 · Viewed 611k times · Source

I want to use C# to check if a string value contains a word in a string array. For example,

string stringToCheck = "text1text2text3";

string[] stringArray = { "text1", "someothertext", etc... };

if(stringToCheck.contains stringArray) //one of the items?
{

}

How can I check if the string value for 'stringToCheck' contains a word in the array?

Answer

Anton Gogolev picture Anton Gogolev · May 26, 2010

Here's how:

if(stringArray.Any(stringToCheck.Contains))
/* or a bit longer: (stringArray.Any(s => stringToCheck.Contains(s))) */

This checks if stringToCheck contains any one of substrings from stringArray. If you want to ensure that it contains all the substrings, change Any to All:

if(stringArray.All(stringToCheck.Contains))

Related questions

How to convert UTF-8 byte[] to string?

I have a byte[] array that is loaded from a file that I happen to known contains UTF-8. In some debugging code, I need to convert it to a string. Is there a one liner that will do this? Under …

Read More
Checking if a string array contains a value, and if so, getting its position

I have this string array: string[] stringArray = { "text1", "text2", "text3", "text4" }; string value = "text3"; I would like to determine if stringArray contains value. If so, I want to locate its position in the array. I don't want to use loops. …

Read More
.NET / C# - Convert char[] to string

What is the proper way to turn a char[] into a string? The ToString() method from an array of characters doesn't do the trick.

Read More