Gets a dictionary that contains the original values of the item to update.
Assembly: System.Web.Extensions (in System.Web.Extensions.dll)
Use theproperty (dictionary) to access the original values of the fields in the item to update. This dictionary contains all fields in the item except the key fields.
Theproperty is automatically populated with the original values of all the fields in the item. A separate entry is added to the property for every field in the item.
To determine the field name of an entry, use the DictionaryEntry.Key property of a System.Collections.DictionaryEntry object that is contained in the dictionary. To determine the value of an entry, use the DictionaryEntry.Value property.
Available since 3.5