When defining a System.Web.UI.WebControls.ControlParameter object, you typically bind a control's property to a parameter by setting both the System.Web.UI.WebControls.ControlParameter.ControlID and System.Web.UI.WebControls.ControlParameter.PropertyName properties. If the System.Web.UI.WebControls.ControlParameter.PropertyName property is not set, a default property is used. The System.Web.UI.ControlValuePropertyAttribute attribute is applied to a control to specify its default property that a System.Web.UI.WebControls.ControlParameter object binds to at run time.

For more information about using attributes, see Extending Metadata Using Attributes.

For a list of initial property values for an instance of the System.Web.UI.ControlValuePropertyAttribute class, see the erload:System.Web.UI.ControlValuePropertyAttribute.#ctor constructor.