private void stockInStockOutButton_Click(object sender, EventArgs e)
{
StockInForm stockInForm = new StockInForm();
this.Close();
thread = new Thread(OpenStockInForm);
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
private void stockInToolStripMenuItem_Click(object sender, EventArgs e)
{
StockInForm stockInForm = new StockInForm();
stockInForm.Show();
}