FormView::DataKeyNames Property

 

Gets or sets an array that contains the names of the key fields for the data source.

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

public:
[TypeConverterAttribute((StringArrayConverter^::typeid))]
property array<String^>^ DataKeyNames {
	virtual array<String^>^ get();
	virtual void set(array<String^>^ value);
}

Property Value

Type: array<System::String^>^

An array that contains the names of the key fields for the data source.

Use the DataKeyNames property to specify a comma-separated list of field names that represent the primary key of the data source. 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. The DataKey object is then stored in the DataKey property.

System_CAPS_noteNote

You must set the DataKeyNames property for the built-in updating, deleting, and inserting features of the FormView control to work.

The following example demonstrates how to use the DataKeyNames property to specify the key field for the data source bound to the FormView control.

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

.NET Framework
Available since 2.0
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