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Xceed Grid for WinForms v4.3 Documentation
Xceed.Validation.v1.3 Assembly / Xceed.Validation Namespace / ValidationExpression Class
Members


In This Topic
    ValidationExpression Class
    In This Topic
    Represents expressions that determine whether the evaluation succeeds or fails. Upon failure, a validation message explaining why the evaluation failed can be provided, which can then be displayed.
    Syntax
    'Declaration
 
<TypeConverterAttribute("Xceed.Validation.Design.ValidationExpressionConverter,Xceed.Validation.v1.3.Design,Version=1.3.25455.6282,Culture=neutral,PublicKeyToken=ba83ff368b7563c6")>
<DesignTimeVisibleAttribute(False)>
<ToolboxItemAttribute(False)>
Public MustInherit Class ValidationExpression 
    'Usage
 
Dim instance As ValidationExpression
    [TypeConverter("Xceed.Validation.Design.ValidationExpressionConverter,Xceed.Validation.v1.3.Design,Version=1.3.25455.6282,Culture=neutral,PublicKeyToken=ba83ff368b7563c6")]
[DesignTimeVisible(false)]
[ToolboxItem(false)]
public abstract class ValidationExpression
    Inheritance Hierarchy

    System.Object
       Xceed.Validation.ValidationExpression
          Xceed.Validation.ValidationCriterion

    Public Properties
     NameDescription
    Public PropertyNameGets or sets a string representing the reference ID of the criterion.  
    Public PropertyValidationLevelGets or sets an ValidationLevel value representing the moment at which validation will be performed.  
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    Protected Properties
     NameDescription
    Protected PropertyPropertiesGets a collection of property names whose values have been explicitly set as well as the corresponding values.  
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    Public Methods
     NameDescription
    Public MethodCanEvaluateReturns a boolean value indicating whether the validation expression can be evaluated.  
    Public MethodCloneCreates a copy of this ValidationExpression object.  
    Public MethodEvaluateLaunches the validation on the component.  
    Public MethodToStringReturns the string representation of the validation expression.  
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    Protected Methods
     NameDescription
    Protected MethodGetPropertyValueRetrieves the value of the specified property in the Properties collection.  
    Protected MethodIsPropertyDefinedRetrieves a boolean value indicating whether the specified property has been explicitly set.  
    Protected MethodRemovePropertyValueRemoves the specified property from the Properties collection.  
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    Public Events
     NameDescription
    Public EventDisposedRaised when an expression has been disposed.  
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    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

    See Also

    Reference

    ValidationExpression Members
    Xceed.Validation Namespace

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