private void button2_Click(object sender, EventArgs e)
{
this.Hide();
StockManagement stockManagement = new StockManagement();
stockManagement.Show();
}
private void bunifuFlatButton2_Click(object sender, EventArgs e)
{
foreach (Form form in dbFrmContainer.Controls.OfType <Form>().ToArray())
{
form.Close();
}
StockManagement l = new StockManagement();
l.TopLevel = false;
dbFrmContainer.Controls.Add(l);
l.Show();
}