the compiler failed with error code 128 asp.net MANAGED-UNMANAGED TRANSITIONS in visual C#.net

Connect ECC200 in visual C#.net MANAGED-UNMANAGED TRANSITIONS

The previous code snippet is self-explanatory. Before creating a new socket-based connection, first check if the socket is already open. If the socket is already open, close the connection. Then, an object of type DnsEndPoint is created to identify the location of the remote host. In this case, the location of the removed host is the web server that hosts the Silverlight page, and the port number is 4530. Finally, the code creates SocketAsyncEventArgs, and attaches the SocketArgs_Completed event handler to the Completed event. Note that the catch block calls the AddMessage method, as shown in the following code: private void AddMessage(string message) { //Separate thread Dispatcher.BeginInvoke( delegate() { Messages.Text += message + "\n"; Scroller.ScrollToVerticalOffset(Scroller.ScrollableHeight); }); } Here, to implement typical Windows chat message behavior, the Scroller ScrollViewer automatically scrolls to the bottom of each message and is added to the Messages TextBlock. The send button performs the sending and receiving of the text message and then appends the response to the main text box that shows the chat conversation. private void btnSend_Click(object sender, RoutedEventArgs e) { SocketAsyncEventArgs Args = new SocketAsyncEventArgs(); // Prepare the message. XmlSerializer serializer = new XmlSerializer(typeof(Message)); MemoryStream ms = new MemoryStream(); serializer.Serialize(ms, new Message(txtMessage.Text, txtName.Text)); byte[] messageData = ms.ToArray(); List<ArraySegment<byte>> bufferList = new List<ArraySegment<byte>>(); bufferList.Add(new ArraySegment<byte>(messageData)); Args.BufferList = bufferList; // Send the message. MSocket.SendAsync(Args); //clear the text box txtMessage.Text = string.Empty; }

Encrypt or decrypt data without creating keys. Generate or validate a hash code. Securely generate random data. Work securely with strings.

14. Change the method to be virtual, and erase the default Throw new as I do here:

Now you re ready to add some shapes to your orchestration. You ll begin with the Receive shape. 1. Drag a Receive shape out onto the orchestration designer. 2. Switch to the Properties window of the shape and change its name to ReceiveOrder. 3. Click the drop-down list for the Message property and select order. 4. Set the Activate property to True. 5. Right-click the left port surface of the designer area and select New Configured Port. 6. Add an XML receive port (as you did in 10). Name the port OrderIn and the port type OrderInType. This will be a one-way, receive port. You will specify the appropriate port binding information later. 7. Connect the Receive Port shape to the Receive shape, as shown in Figure 11-5.