DataControlField.ValidateSupportsCallback Method
.NET Framework 3.0
When overridden in a derived class, signals that the controls contained by a field support callbacks.
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)
Notes to Inheritors:
Classes that derive from the DataControlField class can override this method to indicate whether the controls contained by the field support callbacks. To indicate that callbacks are supported, implement this method as an empty method that does not throw an exception; otherwise, throw an exception with a useful message describing why callbacks are not supported.
DataControlField Members
System.Web.UI.WebControls Namespace
AutoGeneratedField.ValidateSupportsCallback
BoundField.ValidateSupportsCallback
ButtonField.ValidateSupportsCallback
CheckBoxField.ValidateSupportsCallback
CommandField.ValidateSupportsCallback
HyperLinkField.ValidateSupportsCallback
ImageField.ValidateSupportsCallback
TemplateField.ValidateSupportsCallback
Assembly: System.Web (in system.web.dll)
| Exception type | Condition |
|---|---|
| The method is called on a default instance of the DataControlField class. |
The ValidateSupportsCallback method is a helper method used to determine whether the controls contained in a DataControlField object support callbacks. The base implementation of this method has been implemented to throw a NotSupportedException exception to indicate that callbacks are not supported.
Note: |
|---|
| This method is used primarily by control developers. |
Reference
DataControlField ClassDataControlField Members
System.Web.UI.WebControls Namespace
AutoGeneratedField.ValidateSupportsCallback
BoundField.ValidateSupportsCallback
ButtonField.ValidateSupportsCallback
CheckBoxField.ValidateSupportsCallback
CommandField.ValidateSupportsCallback
HyperLinkField.ValidateSupportsCallback
ImageField.ValidateSupportsCallback
TemplateField.ValidateSupportsCallback
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