public void CheckLeftProperties(ICollection<string> properties)
{
foreach (int idx in chkLeftProperties.CheckedIndices)
{
chkLeftProperties.SetItemChecked(idx, false);
}
foreach (string prop in properties)
{
int idx = chkLeftProperties.Items.IndexOf(prop);
if (idx >= 0)
chkLeftProperties.SetItemChecked(idx, true);
}
}