IsDBNull

Return whether the specified field is set to null.

Syntax

public bool IsDBNull (int i)

i
The index of the field to find.

true if the specified field is set to null; otherwise, false.

Call this method to see if there are null column values before calling the typed get methods (for example, System.Data.SqlClient.SqlDataReader.GetByte(int), System.Data.SqlClient.SqlDataReader.GetChar(int), and so on) to avoid raising an error.

Namespace: System.Data
Assembly: System.Data (in System.Data.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0