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FormView.DataKey Property

Gets a DataKey object that represents the primary key of the displayed record.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)
[<BrowsableAttribute(false)>]
abstract DataKey : DataKey with get
[<BrowsableAttribute(false)>]
override DataKey : DataKey with get

Property Value

Type: System.Web.UI.WebControls.DataKey
A DataKey object that represents the primary key of the displayed record.

When the DataKeyNames property is set, the FormView control automatically creates a DataKey object that contains the key/value pairs of the field or fields listed in the DataKeyNames property for the current record. Use the DataKey property to get this DataKey object. This property is commonly used to obtain the keys and their corresponding values for the fields specified in the DataKeyNames property.

NoteNote

As a shortcut, you can also use the SelectedValue property to determine the value of the first key field listed in the DataKeyNames property.

The following example demonstrates how to use the DataKey property to determine the value of the key field.

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

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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