code gives you SPFieldLookupValueCollection in array format
SPFieldLookupValueCollection fieldValues1 = new SPFieldLookupValueCollection (); foreach ( Control ctrl in PnlProfileTags.Controls )// Form Control Id { CheckBox cb = ctrl as CheckBox ; if (cb != null ) { if (cb.Checked) { int TageID = Convert .ToInt32(cb.ID.Substring(4)); var TagItm = web.Lists[listTags.Title].GetItemById(TageID); fieldValues1.Add( new SPFieldLookupValue (TagItm.ID, TagItm.Title)); } } } List < string > strValues = new List < string >(); foreach ( var item in fieldValues1) { strValues.Add(item.ToString().Split( '#' )[1]); } string [] ProfiletagformValue...