private void button3_Click(object sender, EventArgs e)
{
formProductList prodForm = new formProductList
{
TopLevel = false
};
buttonCategory.Controls.Add(prodForm);
prodForm.BringToFront();
prodForm.Show();
}
public formProduct(formProductList frm)
{
InitializeComponent();
cn = new SqlConnection(dbCon.MyConnection());
flist = frm;
}