SqlProtocol: Changes datatype for schema property KeepAlive (#1646)

- SqlProtocol
  - Changed KeepAlive Type from UInt16 to Int32 to reflect te actual WMI.ManagementObject (issue #1645).

CHANGELOG.md

@@ -10,6 +10,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - SqlMaxDop
   - Fixes ([issue #396](https://github.com/dsccommunity/SqlServerDsc/issues/396)).
     Added three return values in Get-Target resource.
+- SqlProtocol
+  - Changed KeepAlive Type from UInt16 to Int32 to reflect te actual WMI.ManagementObject
+    Fixes #1645 ([issue #1645](https://github.com/dsccommunity/SqlServerDsc/issues/1645)).
 
 ## [15.0.0] - 2020-12-06
 

source/DSCResources/DSC_SqlProtocol/DSC_SqlProtocol.psm1

@@ -208,7 +208,7 @@ function Set-TargetResource
         $ListenOnAllIpAddresses,
 
         [Parameter()]
-        [System.UInt16]
+        [System.Int32]
         $KeepAlive,
 
         [Parameter()]
@@ -429,7 +429,7 @@ function Test-TargetResource
         $ListenOnAllIpAddresses,
 
         [Parameter()]
-        [System.UInt16]
+        [System.Int32]
         $KeepAlive,
 
         [Parameter()]
@@ -541,7 +541,7 @@ function Compare-TargetResourceState
         $ListenOnAllIpAddresses,
 
         [Parameter()]
-        [System.UInt16]
+        [System.Int32]
         $KeepAlive,
 
         [Parameter()]

source/DSCResources/DSC_SqlProtocol/DSC_SqlProtocol.schema.mof

@@ -6,7 +6,7 @@ class DSC_SqlProtocol : OMI_BaseResource
     [Write, Description("Specifies the host name of the _SQL Server_ to be configured. If the SQL Server belongs to a cluster or availability group specify the host name for the listener or cluster group. Default value is $env:COMPUTERNAME.")] String ServerName;
     [Write, Description("Specifies if the protocol should be enabled or disabled.")] Boolean Enabled;
     [Write, Description("Specifies to listen on all IP addresses. Only used for the _TCP/IP_ protocol, ignored for all other protocols.")] Boolean ListenOnAllIpAddresses;
-    [Write, Description("Specifies the keep alive duration in milliseconds. Only used for the _TCP/IP_ protocol, ignored for all other protocols.")] UInt16 KeepAlive;
+    [Write, Description("Specifies the keep alive duration in milliseconds. Only used for the _TCP/IP_ protocol, ignored for all other protocols.")] SInt32 KeepAlive;
     [Write, Description("Specifies the name of the named pipe. Only used for the _Named Pipes_ protocol, ignored for all other protocols.")] String PipeName;
     [Write, Description("If set to `$true` then the any attempt by the resource to restart the service is suppressed. The default value is `$false`.")] Boolean SuppressRestart;
     [Write, Description("Timeout value for restarting the _SQL Server_ services. The default value is `120` seconds.")] UInt16 RestartTimeout;