IsDBNull(Int32) Method

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

[Visual Basic]
Overloads Overrides Public Function IsDBNull( _
   ByVal ordinal As Integer _
) As Boolean

[C#]
public override bool IsDBNull( 
   int ordinal
);

Parameters

ordinal

The zero-based column ordinal.

Return Type

true if the specified column value is equivalent to DBNull; otherwise, false.

Remarks

To avoid raising an error, call this method to check for null column values before calling the typed Get methods (for example, GetBytes, GetChars, and so on).

See Also

DbDataReaderBase Class  | DbDataReaderBase Members  | Overload List

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