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SQL Anywhere 11.0.1 » UltraLite - .NET Programming » UltraLite .NET 2.0 API reference » ULDataReader class


IsDBNull method

Checks whether the value from the specified column is NULL.

Visual Basic
Public Overrides Function IsDBNull( _
   ByVal columnID As Integer _
) As Boolean
public override bool IsDBNull(
   int columnID
  • columnID   The ID number of the column. The value must be in the range [0,ULDataReader.FieldCount-1]. The first column in the cursor has an ID value of zero.

Return value

True if value is NULL, false if value is not NULL.

See also