IsDBNull Method

SqlDataReader::IsDBNull Method (Int32)

 

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)

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.

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.

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

.NET Framework
Available since 1.1
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