private void products_Click(object sender, EventArgs e)
{
if (!tabControl.TabPages.ContainsKey("p1"))
{
p1 = new ViewProduct(this.idioma);
tabControl.Visible = true;
p1.MdiParent = this;
p1.WindowState = FormWindowState.Normal;
p1.FormBorderStyle = FormBorderStyle.None;
p1.TopLevel = false;
p1.Dock = DockStyle.Fill;
p1.Show();
TabPage tp = new TabPage(products.Text);
tp.Tag = p1;
tp.Name = "p1";
tp.Parent = tabControl;
tabControl.SelectedTab = tp;
p1.Tag = tp;
}
else
{
int n = tabControl.TabPages.IndexOfKey("p1");
tabControl.SelectTab(n);
}
}