protected override void OnSelectedIndexChanged(EventArgs e)
{
base.OnSelectedIndexChanged(e);
ComboboxData data = (ComboboxData)SelectedItem;
data.Checked = !data.Checked;
if (Checkchanged != null)
{
Checkchanged(data, e);
}
}
protected override void OnDrawItem(DrawItemEventArgs e)
{
if (e.Index == -1)
{
return;
}
if (Items[e.Index] is ComboboxData)
{
ComboboxData data = Items[e.Index] as ComboboxData;
CheckBoxRenderer.RenderMatchingApplicationState = true;
CheckBoxRenderer.DrawCheckBox(e.Graphics, new Point(e.Bounds.X, e.Bounds.Y), e.Bounds, data.Data, this.Font,
(e.State & DrawItemState.Focus) == 0, data.Checked ? CheckBoxState.CheckedNormal : CheckBoxState.UncheckedNormal);
}
else
{
e.Graphics.DrawString(Items[e.Index].ToString(), this.Font, Brushes.Black, new Point(e.Bounds.X, e.Bounds.Y));
return;
}
base.OnDrawItem(e);
}
