Question

I have a queue called log_line_queue in database cja on SQL Server ITSERVER.

I have a C# Win CE application running on a mobile device. I want to send a message from this application to log_line_queue.

This is my code so far:

var myQueue = new System.Messaging.MessageQueue("FormatName:Direct=OS:itserver\\private$\\dbo.cja.log_line_queue");

myQueue.Send("My Message Data.", MessageQueueTransactionType.Automatic);

It results in

System.Messaging.MessageQueueException: Message Queue service is not available.
   at System.Messaging.MessageQueue.MQCacheableInfo.get_WriteHandle()
   at System.Messaging.MessageQueue.StaleSafeSendMessage(MQPROPS properties, IntPtr transaction)
   at System.Messaging.MessageQueue.SendInternal(Object obj, MessageQueueTransactionType transactionType)
   at System.Messaging.MessageQueue.Send(Object obj, MessageQueueTransactionType transactionType)
   at cjaTest1.MessageQueue.FrmSendToQueue.button1_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.ButtonBase.WnProc(WM wm, Int32 wParam, Int32 lParam)
   at System.Windows.Forms.Control._InternalWnProc(WM wm, Int32 wParam, Int32 lParam)
   at Microsoft.AGL.Forms.EVL.EnterModalDialog(IntPtr hwnModal)
   at System.Windows.Forms.Form.ShowDialog()
   at cjaTest1.FrmMainForm.button9_Click(Object sender, EventArgs e)
   at System.Windows.Forms.Control.OnClick(EventArgs e)
   at System.Windows.Forms.Button.OnClick(EventArgs e)
   at System.Windows.Forms.ButtonBase.WnProc(WM wm, Int32 wParam, Int32 lParam)
   at System.Windows.Forms.Control._InternalWnProc(WM wm, Int32 wParam, Int32 lParam)
   at Microsoft.AGL.Forms.EVL.EnterMainLoop(IntPtr hwnMain)
   at System.Windows.Forms.Application.Run(Form fm)
   at cjaTest1.Program.Main()

I’m sure I’m doing many things wrong. Suggestions are welcome.

Answer 1

System.Messaging.MessageQueue is used to interact with MSMQ. A queue called log_line_queue in database cja on SQL Server ITSERVER is either a table or a Service Broker Queue. This is Apples and Oranges, MSMQ has nothing to do with SQL Server. To send messages to a SQL Server queue you must use the SEND T-SQL verb, and you must be connected to a SQL Server instance.