/// <summary>
/// Reports whether a record field is null.
/// </summary>
/// <param name="field">Specifies the field to check.</param>
/// <returns>True if the field is null, false otherwise.</returns>
/// <exception cref="ArgumentOutOfRangeException">The field is less than 0 or greater than the
/// number of fields in the Record.</exception>
/// <remarks><p>
/// Win32 MSI API:
/// <a href="http://msdn.microsoft.com/library/en-us/msi/setup/msirecordisnull.asp">MsiRecordIsNull</a>
/// </p></remarks>
public bool IsNull(int field)
{
this.CheckRange(field);
return(RemotableNativeMethods.MsiRecordIsNull((int)this.Handle, (uint)field));
}
