C# Check if the machine is Laptop

MachineChassis.cs

public enum ChassisTypes
{
	Other = 1,
	Unknown,
	Desktop,
	LowProfileDesktop,
	PizzaBox,
	MiniTower,
	Tower,
	Portable,
	Laptop,
	Notebook,
	Handheld,
	DockingStation,
	AllInOne,
	SubNotebook,
	SpaceSaving,
	LunchBox,
	MainSystemChassis,
	ExpansionChassis,
	SubChassis,
	BusExpansionChassis,
	PeripheralChassis,
	StorageChassis,
	RackMountChassis,
	SealedCasePC
}

public static ChassisTypes GetCurrentChassisType()
{
	ManagementClass systemEnclosures = new ManagementClass("Win32_SystemEnclosure");
	foreach (ManagementObject obj in systemEnclosures.GetInstances())
	{
		foreach (int i in (UInt16[])(obj["ChassisTypes"]))
		{
			if (i > 0 && i < 25)
			{
				return (ChassisTypes)i;
			}
		}
	}
	return ChassisTypes.Unknown;
}

Make sure usings are included

using System.Diagnostics;
using System.Management;