How to search a Substring in String array in C#

Question

How to search for a Substring in String array? I need to search for a Substring in the string array. The string can be located in any part of the array (element) or within

Answer 1

Old school:

int index = -1;

for(int i = 0; i < arrayStrings.Length; i++){
   if(arrayStrings[i].Contains(lineVar)){
      index = i;
      break;
   }
}

If you need all the indexes:

List> indexes = new List>();

for(int i = 0; i < arrayStrings.Length; i++){
   int index = arrayStrings[i].IndexOf(lineVar);
   if(index != -1)
     indexes.Add(new Tuple(i, index)); //where "i" is the index of the string, while "index" is the index of the substring
}