private void purchaseButton_Click(object sender, EventArgs e)
{
PurchaseUI newForm = new PurchaseUI();
newForm.Show();
this.Hide();
}
private void gotoPurchaseLinkLabel_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
this.Hide();
PurchaseUI purchaseUi = new PurchaseUI();
purchaseUi.Closed += (s, args) => this.Close();
purchaseUi.Show();
//this.Close();
}