SearchConditions is a collection of SearchCondition objects.
  Add | Adds the item to the collection at the specified position. | 
  AppendFromExportedSearchString | Initializes search conditions collection with an exported search string. | 
  Clone | Creates a copy of the object. | 
  GetAsExportedSearchString | Gets the search conditions as an exported search string. | 
  Remove | Removes the item at the specified position. | 
  Count | The number of items in the collection. | 
  Item | Accesses the item at the specified position in the collection. |