IsDBNull Method

OdbcDataReader.IsDBNull Method (Int32)

 

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

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

public override bool IsDBNull(
	int i
)

Parameters

i
Type: System.Int32

The zero-based column ordinal.

Return Value

Type: System.Boolean

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

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

.NET Framework
Available since 1.1
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