title: ComboBox.Focus() not working on form load
body: <pre><code>private void InvoiceForm_Load(object sender, EventArgs e)
  {
       comboBox2.Focus();
       lstinv = invhnd.Get();// lstinv is inventry type list 
       comboBox2.DataSource = lstinv;
       comboBox2.DisplayMember = "ItemName";
       comboBox2.ValueMember = "ItemPrice";           
  }
  </code></pre>