OleDbDataReader.IsDBNull(Int32) Method
Definition
Important
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Gets a value that indicates whether the column contains nonexistent or missing values.
public:
override bool IsDBNull(int ordinal);public:
virtual bool IsDBNull(int ordinal);public override bool IsDBNull (int ordinal);public bool IsDBNull (int ordinal);override this.IsDBNull : int -> boolabstract member IsDBNull : int -> bool
override this.IsDBNull : int -> boolPublic Overrides Function IsDBNull (ordinal As Integer) As BooleanPublic Function IsDBNull (ordinal As Integer) As BooleanParameters
- ordinal
- Int32
The zero-based column ordinal.
Returns
true if the specified column value is equivalent to DBNull; otherwise, false.
Implements
Remarks
Call this method to look for null column values before calling the typed get methods (for example, GetByte, GetChar, and so on) to avoid raising an error.
Applies to
See also
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