I will review the method you provided,

I did this for now, which i'm not sure how efficient it is, but it seems to be ok;

DataView dv = new DataView(search.Tables[0]);
foreach (DataRowView drv in dv)
{
this.listBox1.Items.Add(drv["item"].ToString().Trim() + " - " + drv["itmdesc"].ToString().Trim());
}