DBNull Class
[This documentation is for preview only, and is subject to change in later releases. Blank topics are included as placeholders.]
Represents a nonexistent value. This class cannot be inherited.
Inheritance Hierarchy
System. . :: . .Object
System..::..DBNull
Namespace: System
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
Public NotInheritable Class DBNull
public sealed class DBNull
public ref class DBNull sealed
[<Sealed>]
type DBNull = class end
public final class DBNull
The DBNull type exposes the following members.
Methods
Name | Description | |
---|---|---|
Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) | |
GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) | |
GetType | Gets the Type of the current instance. (Inherited from Object.) | |
ToString | Returns a string that represents the current object. (Inherited from Object.) |
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Fields
Name | Description | |
---|---|---|
Value | Represents the sole instance of the DBNull class. |
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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.