Dynamics Ax write data to file

void clicked()
{
DataArea dataArea;
Table1 tab1;
System.IO.StreamWriter file;
;
while select dataArea where dataArea.isVirtual == false
{
changeCompany(dataArea.Id)
{
tab1 = null;
file = new System.IO.StreamWriter("c:\\temp\\1\\" + dataArea.Id + ".txt");
while select tab1
{
file.WriteLine(tab1.Code + ";" + tab1.Name);
}
file.Close();
file.Dispose();
}
}
super();
}