//Start Main Form
private void button1_Click(object sender, EventArgs e)
{
Cursor.Current = Cursors.WaitCursor;
//Create a new instance of the mnForm form
if (mainform == null || mainform.Text == "")
{
mainform = new MainFrm();
mainform.Show();
this.Hide();
}
else if (CheckOpened(mainform.Text))
{
mainform.WindowState = FormWindowState.Normal;
mainform.Focus();
}
else
{
MessageBox.Show("ERROR - Can't open Main Form");
}
mainform = null;
Cursor.Current = Cursors.Arrow;
}