Allow setting Port when using MSSQL, fixes #1884

CHANGELOG.md

@@ -25,6 +25,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 - #1690: Replaced GeckoFX (Firefox) with CefSharp (Chromium)
 - #1325: Language resource files cleanup
 ### Fixed
+- #1884: Allow setting Port when using MSSQL
 - #1783: Added missing inheritance properties to SQL scripts
 - #1773: Connection issue with mysql - Missing fields in 
 - #1756: Cannot type any character on MultiSSH toolbar 

mRemoteNG/Config/DatabaseConnectors/MSSqlDatabaseConnector.cs

@@ -53,9 +53,12 @@ namespace mRemoteNG.Config.DatabaseConnectors
 
         private void BuildDbConnectionStringWithCustomCredentials()
         {
+            string[] hostParts = _dbHost.Split(new char[] { ':' }, 2);
+            var _dbPort = (hostParts.Length == 2) ? hostParts[1] : "1433";
+
             _dbConnectionString = new SqlConnectionStringBuilder
             {
-                DataSource = _dbHost,
+                DataSource = $"{hostParts[0]},{_dbPort}",
                 InitialCatalog = _dbCatalog,
                 UserID = _dbUsername,
                 Password = _dbPassword,