Code to find the string in two dimentional array

static void Main(string[] args)
{
string[][] textArray = new string[][] { new string[] { "apple", "bat" }, new string[] { "cat", "dog" } };
string foundKey = Search(textArray, "bat");
Console.WriteLine(string.Format("found: {0}", foundKey));
}

static string Search(string[][] strDoubleDimArray, string searchKey)
{
string foundStr = null;
foreach (string[] eachStrSingleDimArray in strDoubleDimArray)
{
  foundStr = Array.Find(eachStrSingleDimArray, eachElement => eachElement.Equals(searchKey, StringComparison.CurrentCultureIgnoreCase));

  if (!string.IsNullOrEmpty(foundStr))
     break;
}

return foundStr;
}