Nevron Open Vision Documentation
Nevron.Nov.Dom Namespace / NExpression Class
Fields Properties Methods


In This Topic
    NExpression Class Members
    In This Topic

    The following tables list the members exposed by NExpression.

    Protected Fields
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    Public Properties
     NameDescription
    Public PropertyGets or sets whether the expression is guarded. When guarded, the expression can be removed or replaced only by force. This property can only be set prior to assigning the expression to a target.  
    Public PropertyGets whether the expression has circular dependencies.  
    Public PropertyGets whether the expression is bound to the target {element:property} The binding to/unbinding from a target is automatically performed when the expression is set to an element property, and when an expression is removed from an element property.  
    Public PropertyGets whether the expression is parsed  
    Public PropertyGets the last error, which was encounter when the expression was parsed, evaluated or unparsed. The error is automatically cleared if one of the specified operations succeeded.  
    Public PropertyGets or sets whether the expression is permeable. This flag can optionally be raised for guarded expression, when you want to allow SetValue or ClearValue to allow local value modification. This property can only be set prior to assigning the expression to a target.  
    Public PropertyGets the target element. Valid only when the expression is bound to target.  
    Public PropertyGets the target property. Valid only when the expression is bound to target.  
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    Public Methods
     NameDescription
    Public MethodCreates an exact replica of this expression  
    Public Methodstatic (Shared in Visual Basic)Creates or gets the expressoin from an object. You can pass the following object types to this method:

    1. NExpression - returns the NExpression itself.

    2. string - returns a NFormulaFx the formala of which is the specified string.

    3. null - returns null.

    4. Any other object - throws an exception.

     
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    Protected Methods
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    See Also