Passing (Inheritance) values from click Method to other form methods?

namespace WFRobotCar
 {
     Myrc array_rc;

 private void Setvalue_Click(object sender, EventArgs e)
    {
       array_rc = new Myrc(Convert.ToInt32(this.XtextBox.Text), Convert.ToInt32(this.YtextBox.Text));
    }
 private void printrc_click(object sender, EventArgs e)
    {
      int i, j;
      for (int i = 0; i < array_rc.GetLength(0); i++)
        {
            Console.Write("     ");
            for (int j = 0; j < array_rc.GetLength(1); j++)
            {
                if ((i == int_current_row) && (j == int_current_col))
                    Console.ForegroundColor = ConsoleColor.Green;
                if (array_rc[i, j])
                {
                    Console.Write('-');
                }
                else
                {
                    Console.Write('0');
                }
                if ((i == int_current_row) && (j == int_current_col))
                    Console.ResetColor();
            }
            Console.WriteLine();
        }
    }
 }

private void Setvalue_Click(object sender, EventArgs e)
{
   Myrc array_rc = new Myrc(Convert.ToInt32(this.XtextBox.Text), Convert.ToInt32(this.YtextBox.Text));

   MyMethod(array_rc)
}


void MyMethod(MyRC arrayIn)
{
// use the array here
}