This exception is thrown when you set the Value property of a SQL structure to null . To prevent throwing this exception, you should check the IsNull property of the structure before accessing the Value property.

public sealed class SqlNullValueException : SqlTypeException {
// Public Constructors
   public SqlNullValueException(  );  
   public SqlNullValueException( string message);  
   public SqlNullValueException(string message, Exception e);  
}

Hierarchy

System.Object System.Exception(System.Runtime.Serialization.ISerializable) System.SystemException SqlTypeException SqlNullValueException