/// <summary>
/// 此课堂能否预约。
/// </summary>
/// <param name="arrange"></param>
/// <param name="student"></param>
/// <returns></returns>
protected bool CanBeBooked(PackageArrange arrange, StudentInfo student)
{
if (student == null || arrange == null || arrange.Capacity <= arrange.PackageBookInfo.Count || IsBooked(student, arrange.CoursePackage))
return false;
else return true;
}
partial void DeletePackageArrange(PackageArrange instance);
partial void InsertPackageArrange(PackageArrange instance);
partial void UpdatePackageArrange(PackageArrange instance);
private void detach_PackageArrange(PackageArrange entity)
{
this.SendPropertyChanging();
entity.CoursePackage = null;
}