public void AddRange(CatalogRowCollection value)
 {
     for (int i = 0; (i < value.Count); i = (i + 1))
     {
         this.Add(value[i]);
     }
 }
 public CatalogRowCollection(CatalogRowCollection value)
 {
     this.AddRange(value);
 }
 public CollapseDataGridViewRowEnumerator(CatalogRowCollection mappings)
 {
     this.temp           = ((IEnumerable)(mappings));
     this.baseEnumerator = temp.GetEnumerator();
 }