How to Join Arrangements in C #

Two more methods, using the Concat method and also an additional form, creating an array with the longitud de la primera cadena + longitud de la segunda , then copying the first array from the 0 position, and the second array starting from the end position of the first chain all this using the method CopyTo

string[] arr = new string[] { "HOLA" };
string[] arr1 = new string[] { "MUNDO" };


string[] result= arr.Concat(arr1).ToArray();

string[] result = new string[arr.Length + arr1.Length];
arr.CopyTo(result, 0);
arr1.CopyTo(result, arr.Length);

You can do it with the following using LINQ :

string[] result = array1.Union(array2).ToArray();

You must be careful because union removes the repeated data.

It can be done through a list:

int[] arreglo1 = new int [] { 1, 2, 3};
int[] arreglo2 = new int [] { 6, 7, 9};

List<int> lista = new List<int>();  //declaración de la lista
lista.AddRange(arreglo1);           //utilizar metodo AddRange para cada arreglo
lista.AddRange(arreglo2);
int[] z = lista.ToArray();     //conviertes la lista a arreglo   

Hi, I have a very silly question maybe I have a rich text box that will occupy a thousand string data and that data may vary I want to store them in an array so that when I want to search for it, I can do it just by entering the number of the array where is 499 for example and show it in my second rich text box. Grateful for the help