System.Web.UI Namespace   Page Class

.NET Framework version 2.0

Instructs any validation controls included on the page to validate their assigned information.

[ VB ]
Public Overridable Sub Validate

[ C# ]
public virtual void Validate ( )

[ C++ ]
public: virtual void Validate ( )

[ JScript ]
public function Validate ( )

This method is invoked when a user clicks any ASP.NET server control that has the CausesValidation property set to true, which is the default. These include the Button, ImageButton, and LinkButton Web server controls, the HtmlInputButton, HtmlInputImage, and HtmlButton HTML server controls, and controls that can automatically post back to the server such as the TextBox, CheckBox, ListControl, and BulletedList controls.

To disable validation for any button control on the page, set the button control's CausesValidation property to false.

When this method is invoked, it iterates through the validation controls contained in the ValidatorCollection object associated with the Page.Validators property and invokes the validation logic for each validation control in the current validation group. The validation group is determined by the control that posted the page to the server. If no validation group is specified, then no validation group is used.

NOTE: The behavior of page validation has changed. In ASP.NET 2.0, controls no longer call the Page.Validate method; they use the Page.Validate ( String ) method instead. If you use the Page.Validate method on an ASP.NET 2.0 page, validation groups are ignored and all controls are validated.

The following example demonstrates using the Validate method.

NOTE: This example shows how to use one of the overloaded versions of Validate. For other examples that might be available, see the individual overload topics.

Page Members   Page.Validate Overload List