THRIFT-881. csharp: add csharp to the tutorial

This patch adds a tutorial for CSharp. It also moves the 'test' client and server into the tutorial, because they were not being used by the tests.

Patch: Roger Meier

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@1000953 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/tutorial/csharp/CsharpClient/CsharpClient.cs b/tutorial/csharp/CsharpClient/CsharpClient.cs
new file mode 100644
index 0000000..8ce1085
--- /dev/null
+++ b/tutorial/csharp/CsharpClient/CsharpClient.cs
@@ -0,0 +1,87 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+using System;
+using Thrift;
+using Thrift.Protocol;
+using Thrift.Server;
+using Thrift.Transport;
+
+
+namespace CSharpTutorial
+{
+    public class CSharpClient
+    {
+        public static void Main()
+        {
+            try
+            {
+                TTransport transport = new TSocket("localhost", 9090);
+                TProtocol protocol = new TBinaryProtocol(transport);
+                Calculator.Client client = new Calculator.Client(protocol);
+
+                transport.Open();
+
+                client.ping();
+                Console.WriteLine("ping()");
+
+                int sum = client.add(1, 1);
+                Console.WriteLine("1+1={0}", sum);
+
+                Work work = new Work();
+
+                work.Op = Operation.DIVIDE;
+                work.Num1 = 1;
+                work.Num2 = 0;
+                try
+                {
+                    int quotient = client.calculate(1, work);
+                    Console.WriteLine("Whoa we can divide by 0");
+                }
+                catch (InvalidOperation io)
+                {
+                    Console.WriteLine("Invalid operation: " + io.Why);
+                }
+
+                work.Op = Operation.SUBTRACT;
+                work.Num1 = 15;
+                work.Num2 = 10;
+                try
+                {
+                    int diff = client.calculate(1, work);
+                    Console.WriteLine("15-10={0}", diff);
+                }
+                catch (InvalidOperation io)
+                {
+                    Console.WriteLine("Invalid operation: " + io.Why);
+                }
+
+                SharedStruct log = client.getStruct(1);
+                Console.WriteLine("Check log: {0}", log.Value);
+
+                transport.Close();
+            }
+            catch (TApplicationException x)
+            {
+                Console.WriteLine(x.StackTrace);
+            }
+
+        }
+    }
+}