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SqlCeDataReader.IsDBNull Method

Gets a value indicating whether the column contains nonexistent or missing values.

Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

public override bool IsDBNull (
	int ordinal
)
public boolean IsDBNull (
	int ordinal
)
public override function IsDBNull (
	ordinal : int
) : boolean
Not applicable.

Parameters

ordinal

The zero-based column ordinal.

Return Value

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

Call this method to check for null column values before calling the typed get methods (for example, GetByte, GetGuid, and so on) to avoid raising an error.

Windows CE, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows XP Professional x64 Edition, Windows XP SP2

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

.NET Compact Framework

Supported in: 2.0, 1.0
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