GridViewUpdateEventArgs::Keys Property

 

Gets a dictionary of field name/value pairs that represent the primary key of the row to update.

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

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

Property Value

Type: System.Collections.Specialized::IOrderedDictionary^

A System.Collections.Specialized::IOrderedDictionary object containing field name/value pairs that represent the primary key of the row to update.

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

System_CAPS_noteNote

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

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

The following example demonstrates how to use the Keys property to access the values of the key fields in the row to update. The values are then written to a log file of updated records.

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

.NET Framework
Available since 2.0
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