Remove Undefined from StateChange enum (#461)

Author: Clebam

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - `azure-pipelines.yml`
   - Remove `windows-2019` images fixes [#451](https://github.com/dsccommunity/ComputerManagementDsc/issues/451).
 - Module manifest: Set `CmdletsToExport` to `'*'` to satisfy HQRM tests.
+- ScheduledTask
+  - Removed Undefined from ScheduledTask enum
+    Fixes [Issue #460](https://github.com/dsccommunity/ComputerManagementDsc/issues/460).
 
 ### Fixed
 

source/DSCResources/DSC_ScheduledTask/DSC_ScheduledTask.psm1

@@ -13,7 +13,6 @@ namespace ScheduledTask
     }
     public enum StateChange : uint
     {
-        Undefined = 0,
         OnConnectionFromLocalComputer = 1,
         OnDisconnectFromLocalComputer = 2,
         OnConnectionFromRemoteComputer = 3,
@@ -2127,7 +2126,14 @@ function Get-CurrentResource
             EventSubscription               = $trigger.Subscription
             EventValueQueries               = ConvertTo-HashtableFromTaskNamedValuePairCollection -Array $trigger.ValueQueries
             Delay                           = ConvertTo-TimeSpanStringFromScheduledTaskString -TimeSpan $trigger.Delay
-            StateChange                     = [System.String][ScheduledTask.StateChange][System.UInt32] $trigger.StateChange # Cast to integer first to allow casting to enum with null
+        }
+
+        if ($trigger.StateChange)
+        {
+            $result.Add('StateChange', [System.String][ScheduledTask.StateChange][System.UInt32] $trigger.StateChange)
+        }
+        else {
+            $result.Add('StateChange', $null)
         }
 
         if (