Storing data in an array that is accessed by separate void c# -

i want design program populates 2d array in 1 void , accesses results another. ie array @ program level not void level.

can advise on syntax? in vba simple, private myarray() variant @ top of module. struggling adapt this.

thanks in advance!

namespace public_collection2 {     public partial class form1 : form      {         public form1()         {             initializecomponent();         }           private void button1_click(object sender, eventargs e)         {             string[,] info = new string[2, 2];             info[0, 0] = "jn";             info[0, 1] = "565";             info[1, 0] = "gd";             info[1, 1] = "700";              foreach (var item in info)             {                 if (isnotdigits(item))                 {                     combobox1.items.add(item);                 }                            }          }          bool isnotdigits(string str)         {             foreach (char c in str)             {                 if (c < '0' || c > '9')                     return true;             }              return false;          }          private void combobox1_selectedindexchanged(object sender, eventargs e)         {             foreach (var item in info)//info not accessible             {                 //pullout relevant number in 2d array             }         }      } }  

put

string[,] info = new string[2, 2]; 

outside method (but inside class). becomes instance field (accessible methods) instead of local variable.