CanEvaluate Method (ValidationExpression)

Returns a boolean value indicating whether the validation expression can be evaluated.

Syntax

Visual Basic
C#

'Declaration
 
Public MustOverride Function CanEvaluate( _

   ByVal componentToValidate As Object _

) As Boolean

'Usage
 
Dim instance As ValidationExpression

Dim componentToValidate As Object

Dim value As Boolean

 

value = instance.CanEvaluate(componentToValidate)

public abstract bool CanEvaluate( 

   object componentToValidate

)

Parameters

componentToValidate: The input component on which the evaluation is performed.

Return Value

true if the validation expression is well formatted and has all required operands and operators to be evaluated on the passed System.Windows.Forms.Control; false otherwise.

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

ValidationExpression Class
ValidationExpression Members