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Devart.Common Namespace / DbDataReaderBase Class / IsDBNull Method / IsDBNull(String) Method
The value of the specified column.

In This Topic
    IsDBNull(String) Method
    In This Topic
    Gets a value indicating whether the column contains non-existent or missing values.
    Syntax
    'Declaration
 
Public Overloads Function IsDBNull( _
   ByVal name As String _
) As Boolean
    public bool IsDBNull( 
   string name
)

    Parameters

    name
    The value of the specified column.

    Return Value

    true if the specified column value is equivalent to System.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

    Reference

    DbDataReaderBase Class
    DbDataReaderBase Members
    Overload List

     

     

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