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EdmNullExpression Class

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Represents an EDM null.

Inheritance Hierarchy

System.Object
  Microsoft.Data.Edm.Library.Values.EdmValue
    Microsoft.Data.Edm.Library.Values.EdmNullExpression

Namespace:  Microsoft.Data.Edm.Library.Values
Assembly:  Microsoft.Data.Edm (in Microsoft.Data.Edm.dll)

Syntax

'Declaration
Public Class EdmNullExpression _
    Inherits EdmValue _
    Implements IEdmNullExpression, IEdmExpression, IEdmNullValue, IEdmValue,  _
    IEdmElement
'Usage
Dim instance As EdmNullExpression

public class EdmNullExpression : EdmValue, 
    IEdmNullExpression, IEdmExpression, IEdmNullValue, IEdmValue, IEdmElement

public ref class EdmNullExpression : public EdmValue, 
    IEdmNullExpression, IEdmExpression, IEdmNullValue, IEdmValue, IEdmElement

type EdmNullExpression =  
    class 
        inherit EdmValue 
        interface IEdmNullExpression 
        interface IEdmExpression 
        interface IEdmNullValue 
        interface IEdmValue 
        interface IEdmElement 
    end

public class EdmNullExpression extends EdmValue implements IEdmNullExpression, IEdmExpression, IEdmNullValue, IEdmValue, IEdmElement

The EdmNullExpression type exposes the following members.

Properties

  Name Description
Public property ExpressionKind Gets the kind of this expression.
Public property Type Gets the type of this value. (Inherited from EdmValue.)
Public property ValueKind Gets the kind of this value. (Overrides EdmValue.ValueKind.)

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Methods

  Name Description
Public method Equals (Inherited from Object.)
Protected method Finalize (Inherited from Object.)
Public method GetHashCode (Inherited from Object.)
Public method GetType (Inherited from Object.)
Protected method MemberwiseClone (Inherited from Object.)
Public method ToString (Inherited from Object.)

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Extension Methods

  Name Description
Public Extension Method Errors Gets the errors, if any, that belong to this element or elements that this element contains. For example errors for a structural type include the errors of the type itself and errors of its declared properties. The method does not analyze elements referenced by this element. For example errors of a property do not include errors from its type. (Defined by ValidationExtensionMethods.)
Public Extension Method IsBad Indicates whether this element contains errors returned by the Errors(IEdmElement) method. (Defined by ValidationExtensionMethods.)
Public Extension Method IsSerializedAsElement Gets an annotation indicating if the value should be serialized as an element. (Defined by SerializationExtensionMethods.)
Public Extension Method Location Gets the location of the specified item. (Defined by ExtensionMethods.)
Public Extension Method SetIsSerializedAsElement Sets an annotation indicating if the value should be serialized as an element. (Defined by SerializationExtensionMethods.)
Public Extension Method TryAssertType(IEdmTypeReference, IEnumerable<EdmError>%) Overloaded. Determines if the type of an expression is compatible with the provided type. (Defined by ExpressionTypeChecker.)
Public Extension Method TryAssertType(IEdmTypeReference, IEdmType, Boolean, IEnumerable<EdmError>%) Overloaded. Determines if the type of an expression is compatible with the provided type (Defined by ExpressionTypeChecker.)

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Fields

  Name Description
Public fieldStatic member Instance A singleton null expression instance.

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Explicit Interface Implementations

  Name Description
Explicit interface implemetationPrivate property IEdmDelayedValue.Value Gets the value of the specified object. (Inherited from EdmValue.)

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Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

Microsoft.Data.Edm.Library.Values Namespace