void searchPicTransactionBy_Click(object sender, EventArgs e)
{
if (trans.Equals(ListOfTransaction.Sales) || trans.Equals(ListOfTransaction.ReturSales))
{
OpenFormSearchCustomer();
}
else if (trans.Equals(ListOfTransaction.Correction))
{
OpenFormSearchEmployee();
}
else if (trans.Equals(ListOfTransaction.Purchase) || trans.Equals(ListOfTransaction.ReturPurchase))
{
OpenFormSearchSupplier();
}
}