Use the Equals method to check if an item exists in a C# array.
Set string and substring −
string subStr = "pqrs"; string[] str = { "abcd", "ijkl", "pqrs", "wxyz" };
Now check whether the substring is part of the string or not using the Equals method.
if (item.Equals(subStr)) { Console.WriteLine("Item Found"); }
Here is the complete code −
using System; namespace Program { public class Demo { public static void Main(String[] args) { string subStr = "pqrs"; string[] str = { "abcd", "ijkl", "pqrs", "wxyz" }; foreach(string item in str) { if (item.Equals(subStr)) { Console.WriteLine("Item Found"); } } } } }
Item Found