/// <summary>
/// Updates the virtual machine list.
/// </summary>
/// <param name="isChecked">if set to <c>true</c> the checkbox is checked.</param>
/// <param name="currentGroup">The current platform.</param>
/// <param name="machineAssoc">The virtual machine/group association.</param>
private void UpdateMachineList(bool isChecked, UserGroup currentGroup, VirtualMachineGroupAssoc machineAssoc)
{
// If the virtual machine isn't NULL, then update the virtual machine list to either
// include or remove the virtual machine, depending on the check setting.
if (machineAssoc != null)
{
var exists = currentGroup.VirtualMachineGroupAssocs.Any(x => x.GroupName.Equals(machineAssoc.GroupName) && x.MachineName.Equals(machineAssoc.MachineName));
if (isChecked && !exists)
{
// If this association has already been deleted (unchecked) without a save, then create a replacement entry
// and add it back into the collection. Otherwise an exception will occur saying the object is in a deleted
// state and can't be added.
if (machineAssoc.EntityState == System.Data.EntityState.Deleted)
{
var replacement = VirtualMachineGroupAssoc.CreateVirtualMachineGroupAssoc(machineAssoc.MachineName, machineAssoc.GroupName);
currentGroup.VirtualMachineGroupAssocs.Add(replacement);
}
else
{
currentGroup.VirtualMachineGroupAssocs.Add(machineAssoc);
}
}
else if (!isChecked && exists)
{
var item = currentGroup.VirtualMachineGroupAssocs.First(x => x.GroupName.Equals(machineAssoc.GroupName) && x.MachineName.Equals(machineAssoc.MachineName));
currentGroup.VirtualMachineGroupAssocs.Remove(item);
}
}
}
private VirtualMachineGroupAssoc GetMachineGroupAssoc(string groupName, string machineName)
{
VirtualMachineGroupAssoc result = (from a in _entities.VirtualMachineGroupAssocs
where a.MachineName == machineName && a.GroupName == groupName
select a).FirstOrDefault();
if (result == null)
{
result = new VirtualMachineGroupAssoc()
{
MachineName = machineName,
GroupName = groupName
};
}
return(result);
}