void LVersion_ToRefresh(object sender, EventArgs e)
{
if (lversion != null)
{
main_tabControl.TabPages.Remove(lversiontab);
lversion = null;
}
}
private void Lversion_menu_Click(object sender, EventArgs e)
{
if (lversion == null)
{
lversion = new LVersion();
lversiontab = new TabPage("VERSION");
main_tabControl.TabPages.Add(lversiontab);
lversiontab.Controls.Add(lversion);
lversion.Dock = DockStyle.Fill;
lversion.Show();
lversion.BringToFront();
}
main_tabControl.SelectTab(lversiontab);
}