Page.Validate Method (String)
Instructs the validation controls in the specified validation group to validate their assigned information.
Assembly: System.Web (in System.Web.dll)
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.
The IsValid method will return true only if both the specified validation group and the validation group of the control that caused the page to be posted to the server are valid.method validates the specified validation group. After calling the method on a validation group, the
The following code example calls themethod on a page in a scenario with several different validation groups defined.
This example has a text box that accepts user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.
Available since 2.0