When overridden in a derived class, this method contains the code to determine whether the value in the input control is valid.
Namespace: System.Web.UI.WebControls
Assembly: System.Web (in system.web.dll)
Visual Basic (Declaration)
Protected MustOverride Function EvaluateIsValid As Boolean
Dim returnValue As Boolean
returnValue = Me.EvaluateIsValid
protected abstract bool EvaluateIsValid ()
protected:
virtual bool EvaluateIsValid () abstract
protected abstract boolean EvaluateIsValid ()
protected abstract function EvaluateIsValid () : boolean
Return Value
true if the value in the input control is valid; otherwise, false.
Use the EvaluateIsValid method to determine whether the value in the input control specified by the ControlToValidate property is valid.
.gif) Note |
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| This method is used primarily by control developers. |
Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.
.NET Framework
Supported in: 2.0, 1.1, 1.0