Switch to using declarations in code examples.

Author: bgrainger

docs/content/troubleshooting/transaction-usage.md

@@ -1,5 +1,5 @@
 ---
-lastmod: 2019-07-30
+lastmod: 2021-09-21
 date: 2018-09-29
 title: Transaction Usage
 customtitle: "Fix: The transaction associated with this command is not the connection’s active transaction"
@@ -30,42 +30,38 @@ To easily migrate code from Connector/NET, use the `IgnoreCommandTransaction=tru
 ### ADO.NET example
 
 ```csharp
-using (var connection = new MySqlConnection(...))
-{
-    connection.Open();
-    using (var transaction = connection.BeginTransaction())
-    using (var command = connection.CreateCommand())
-    {
-        command.CommandText = "SELECT ...";
-
-        // *** ADD THIS LINE ***
-        command.Transaction = transaction;
-
-        // otherwise, this will throw System.InvalidOperationException: The transaction associated with this command is not the connection's active transaction.
-        command.ExecuteScalar();
-
-        transaction.Commit();
-    }
-}
+using var connection = new MySqlConnection(...);
+connection.Open();
+
+using var transaction = connection.BeginTransaction();
+using var command = connection.CreateCommand();
+command.CommandText = "SELECT ...";
+
+// *** ADD THIS LINE ***
+command.Transaction = transaction;
+
+// otherwise, this will throw System.InvalidOperationException: The transaction associated with this command is not the connection's active transaction.
+command.ExecuteScalar();
+
+// ... remaining code
+transaction.Commit();
 ```
 
 ### Dapper Example
 
 ```csharp
-using (var connection = new MySqlConnection(...))
-{
-    connection.Open();
-    using (var transaction = connection.BeginTransaction())
-    {
-        // this will throw System.InvalidOperationException: The transaction associated with this command is not the connection's active transaction.
-        connection.Query("SELECT ...");
-
-        // use this instead:
-        connection.Query("SELECT ...", transaction: transaction);
-
-        transaction.Commit();
-    }
-}
+using var connection = new MySqlConnection(...);
+connection.Open();
+using var transaction = connection.BeginTransaction();
+
+// this will throw System.InvalidOperationException: The transaction associated with this command is not the connection's active transaction.
+connection.Query("SELECT ...");
+
+// use this instead:
+connection.Query("SELECT ...", transaction: transaction);
+
+// ... remaining code
+transaction.Commit();
 ```
 
 ## Further Reading

docs/content/tutorials/best-practices.md

@@ -1,5 +1,5 @@
 ---
-lastmod: 2021-06-07
+lastmod: 2021-09-21
 date: 2016-10-16
 menu:
   main:
@@ -160,15 +160,11 @@ namespace MySqlConnector.Examples
     {
         public static async Task SleepOne()
         {
-            using (var db = new AppDb())
-            {
-                await db.Connection.OpenAsync();
-                using (var cmd = db.Connection.CreateCommand())
-                {
-                    cmd.CommandText = @"SELECT SLEEP(1)";
-                    await cmd.ExecuteNonQueryAsync();
-                }
-            }
+            using var db = new AppDb();
+            await db.Connection.OpenAsync();
+            using var cmd = db.Connection.CreateCommand();
+            cmd.CommandText = @"SELECT SLEEP(1)";
+            await cmd.ExecuteNonQueryAsync();
         }
     }
 }