//Make sure that the access modes for the container and the part are compatible
private void ThrowIfOpenAccessModesAreIncompatible(FileMode mode, FileAccess access)
{
Package.ThrowIfFileModeInvalid(mode);
Package.ThrowIfFileAccessInvalid(access);
//Creating a part using a readonly stream.
if (access == FileAccess.Read &&
(mode == FileMode.Create || mode == FileMode.CreateNew || mode == FileMode.Truncate || mode == FileMode.Append))
{
throw new IOException(Resources.UnsupportedCombinationOfModeAccess);
}
//Incompatible access modes between container and part stream.
if ((_container.FileOpenAccess == FileAccess.Read && access != FileAccess.Read) ||
(_container.FileOpenAccess == FileAccess.Write && access != FileAccess.Write))
{
throw new IOException(Resources.ContainerAndPartModeIncompatible);
}
}