OleDbDataReader.IsDBNull(Int32) OleDbDataReader.IsDBNull(Int32) OleDbDataReader.IsDBNull(Int32) OleDbDataReader.IsDBNull(Int32) Method

Definition

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

public:
 override bool IsDBNull(int ordinal);
public override bool IsDBNull (int ordinal);
override this.IsDBNull : int -> bool
Public Overrides Function IsDBNull (ordinal As Integer) As Boolean

Parameters

ordinal
Int32 Int32 Int32 Int32

The zero-based column ordinal.

Returns

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

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