GridViewUpdateEventArgs::OldValues Property
Gets a dictionary containing the original field name/value pairs in the row to update.
Assembly: System.Web (in System.Web.dll)
Property Value
Type: System.Collections.Specialized::IOrderedDictionaryAn System.Collections.Specialized::IOrderedDictionary object that contains the original values of the field name/value pairs in the row to update.
Use the OldValues property (dictionary) to access the original values of the fields in the row to update. This dictionary contains all fields in the row except the key fields. The key fields are defined in the DataKeyNames property of a GridView control.
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You can access the key fields of the row by using the Keys property. To access the revised values of the non-key fields in the row, use the NewValues property. |
The OldValues property is automatically populated with the original values of all the field name/value pairs in the row. A separate entry is added to the OldValues property for each field in the row.
To determine the field name of an entry, use the DictionaryEntry::Key property of a System.Collections::DictionaryEntry object contained in the OldValues dictionary. To determine the value of an entry, use the DictionaryEntry::Value property.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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