示例#1
0
 public static frmCaja GetInstancia()
 {
     if (Instancia == null)
     {
         Instancia = new frmCaja();
     }
     return(Instancia);
 }
示例#2
0
 private void frmCaja_FormClosing(object sender, FormClosingEventArgs e)
 {
     Instancia = null;
 }