Gets a value that indicates whether the column contains non-existent or missing values.

Namespace: System.Extensions.Data
Assembly: System.Extensions (in System.Extensions.dll) Version: 0.0.0.5 (0.0.0.5)

Syntax

C#
public static bool IsDBNull(
	this IDataRecord reader,
	string name
)
Visual Basic
<ExtensionAttribute> 
Public Shared Function IsDBNull ( 
	reader As IDataRecord,
	name As String
) As Boolean
Visual C++
public:
[ExtensionAttribute]
static bool IsDBNull(
	IDataRecord^ reader, 
	String^ name
)
F#
static member IsDBNull : 
        reader : IDataRecord * 
        name : string -> bool 

Parameters

reader
Type: System.Data..::..IDataRecord
The reader to retrieve the value from.
name
Type: System..::..String
The name of the field to find.

Return Value

Type: Boolean
True if the specified column value is equivalent to DBNull; otherwise false.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IDataRecord. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

See Also