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DbDataRecord.IsDBNull Method

Used to indicate nonexistent values.

Namespace:  System.Data.Common
Assembly:  System.Data (in System.Data.dll)

public abstract bool IsDBNull(
	int i
)

Parameters

i
Type: System.Int32

The column ordinal.

Return Value

Type: System.Boolean
true if the specified column is equivalent to DBNull; otherwise false.

Implements

IDataRecord.IsDBNull(Int32)

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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