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ListViewUpdateEventArgs::Keys Property

Gets a dictionary of field name/value pairs that represent the key or keys of the item to update.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)

public:
property IOrderedDictionary^ Keys {
	IOrderedDictionary^ get ();
}

Property Value

Type: System.Collections.Specialized::IOrderedDictionary
The field name/value pairs that represent the key or keys of the item to update.

When the DataKeyNames property of a ListView control is set, use the Keys property (dictionary) to access the value of the primary key in the item to update.

NoteNote:

To access the values of the non-key fields, use the NewValues or OldValues properties. The NewValues property contains the updated values, and the OldValues property contains the original values.

The Keys dictionary is automatically populated with the name/value pairs of the field or fields specified in the DataKeyNames property. If multiple fields form the primary key, a separate entry is added to the Keys dictionary for every key field.

To determine the name of a key field, use the DictionaryEntry::Key property of a DictionaryEntry object that is contained in the Keys dictionary. To determine the value of a key field, use the DictionaryEntry::Value property.

The following example shows how to use the Keys property to access the value of the key field for the record being updated.

Security noteSecurity Note:

This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

No code example is currently available or this language may not be supported.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5
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