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SqlDataReader::IsDBNull Method (Int32)

.NET Framework (current version)
 

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

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

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public:
virtual bool IsDBNull(
	int i
) override

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.

Implements

IDataRecord::IsDBNull(Int32) 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.

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No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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