NullIsValid Property (RegularExpressionValidator)

In This Topic

Gets or sets whether the validation is always successful when the specified value is a null reference (Nothing in Visual Basic).

Syntax

Visual Basic
C#

'Declaration
 
Public Property NullIsValid As Boolean

'Usage
 
Dim instance As RegularExpressionValidator
Dim value As Boolean
 
instance.NullIsValid = value
 
value = instance.NullIsValid

public bool NullIsValid {get; set;}

Property Value

true if the validation is always successful when the specified value is a null reference (Nothing in Visual Basic); otherwise, false. The default is true.

Remarks

If the cell value is a null reference (Nothing in Visual Basic), you can determine whether the validation always succeeds.

Reference

RegularExpressionValidator Class
RegularExpressionValidator Members

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