The front-end and the server-end are to completely different processes. The front-end times out (stops waiting for a response) but the server-end does not know that and continues to process the request. When it replies...there is nothing waiting for the response so the response just goes into limbo. There is a flag in asp.net "IsClientConnected" which tested whether or not there was still something waiting for the response. So in the loop, you would check that and if it was false, you'd get out because no on wanted the result any longer. I do not know if WCF has something simular. 'Never argue with an idiot; they'll drag you down to their level and beat you with experience.' ~ anonymous 'Life's real failure is when you do not realize how close you were to success when you gave up.' ~ anonymous

That callback contract doesn't make sense. You are saying that your callback interface (service exposed on the client) has an operation which expects ChannelFactory as parameter from service. Why do you want to send channel factory from service to client? Btw. it is not possible because as exception says DuplexChannelFactory is not serializable.

As I see it, there are two ways to handle this: Set a timeout on the command. When the a request exceeds that timeout it will throw and exception. You can handle that exception in your service code and maybe retry it. Or you could set the timeout on the command and when the command times out, it will throw an exception, you can catch this at the client and maybe retry the request. In the first case you're still using the same thread the whole time. In the second case WCF is going to put the thread back into it's pool. But what it really comes down to is you don't need to worry about what happens to the thread, WCF is going to deal with it either way. I really don't think you should be restarting this process at all. If a database request takes on average 1 second, and your command timeout is 1 minute. If you hit that timeout, you have a problem and should throw and exception, not just hide the exception and try again. If you have one particular database calls that averages 50 seconds, you should just up your command timeout. If a process takes on average 50 seconds, and let's say that due to server load it's going to take a minute and 10 seconds, but it times out at 1 minute, if you restart it you're using 1 minute 50 seconds of server time when you could have used 1 minute 10 seconds. Not to mention that if it's server load that slows your database call down, you're now increasing the load with the second call. I've seen someone put code in to call a stored procedure a second or third time if it errored due to deadlock or timeout (usually due to blocking locks), and it generally just made stuff worse. Whenever it did this, the problem would cascade across all of the users. We'd tell everyone to stop what they were doing for 2 minutes and everything would go back to normal.

Hello, that is completely handled by WCF. Best regards, Ladislav

Hi, Thanks a lot for your reply. I will clearly explain my scenario. I have a single Service Contract. And this Interface will be implemented in different classes. Because in each class the implimentation will be different.So for opening the service host i need to provide the type of these classes. That i will come to know ony at run time. I am getting that type information from database. So each time when loop comes in the type will be diffrent.In that case how i can do it? because i will be getting multiple types from database.thats why i put it in loop. Can u please suggest me a better way to do this? Thanks Lijo

Heya, when you say Thread, are you referring to Ports? If so, the link below suggests a solution of sorts whereby they call the service, catch the exception, then loop. Not elegant, but it would work. I guess checking for free ports may not be possible, as you're looking for free ports on the server, and to check that, you'd need to ask the server, via a port. http://stackoverflow.com/questions/664879/how-to-find-empty-port-to-start-wcf-web-servicehost[^] You may also want to check out the maxUserPort setting as mentioned here: http://msdn.microsoft.com/en-us/library/aa560610(BTS.20).aspx[^] I'm no expert in this area though, and may have got the wrong end of the stick on what you're hoping to do. Hope this helps though. Cheers, JB

Please see also my answer in this thread on CodeProject: [^] See my article about Windows 7 Taskbar timer here on CodeProject

That's the main hit, but there is still a small hit from the fact that it has to be put on the finalization list in the first place (and then taken back off in Dispose). I have no idea how big that hit is, since that will depend mostly on how many of these objects are being created.

Confused? You will be. "WPF has many lovers. It's a veritable porn star!" - Josh Smith As Braveheart once said, "You can take our freedom but you'll never take our Hobnobs!" - Martin Hughes. My blog | My articles | MoXAML PowerToys | Onyx

You might start by reading a basic book, so you have some sort of clue about what you're doing. You have two options: 1 - you can do a cross page postback, where page 1 sets up page 2 to see it's viewstate. This is an ugly hack 2 - you can take your two pages, turn them into controls, show them on the same page, and then they will share viewstate b/c they are the same page. Christian Graus Driven to the arms of OSX by Vista. Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

You mean diff between AJAX using ICallBack and ASP.NET AJAX? Callback is used to get a callback from the server. Its the normal XMLHttpRequest object. ASP.NET AJAX is more improved version, where you can Post the entire page. Sometimes it also does Form.Submit, based on your request. One important thing that you remember, using UpdatePanel will hide the actual postback is shown, even if it creates a new form and submit the entire form of urs to the server. thanks to ScriptManager, it manages everything. :rose::rose: Abhishek Sur My Latest Articles Working with Excel using MDAC Basics on LINQ and Lambda Expressions Create .NET Templates

Create your own method which will load hitcounter value and increase it by 1.This method call in Page_Load event. For more check this.[^] I Love T-SQL "Don't torture yourself,let the life to do it for you." If my post helps you kindly save my time by voting my post.

Both are same. In case of OnClientClick the asp:Button will render the a submit button, and OnClick will evaluate your javascript. Same as Attributes.add Abhishek Sur My Latest Articles Working with Excel using MDAC Basics on LINQ and Lambda Expressions Create .NET Templates

First you need to change the color of the text before putting it in the rtb. rtb.SelectionColor = System.Drawing.Color.Red; rtb.AppendText(outText); changing other attributes rtb.SelectionColor = System.Drawing.Color.Blue; System.Drawing.Font fBold = new System.Drawing.Font("Courier New", 10, fontBold); rtb.SelectionFont = fBold; rtb.AppendText(outText); good luck

See CG's reply below - but also, out of interest, WHY? don't you want to do it as per the link? As CG says, you seem to know nothing about Web development at all, let aloone ASP .NET development. Perhaps start with the ASP.Net tutorials, write a Hello world page and come back and ask questions then. ___________________________________________ .\\axxx (That's an 'M')

Lijo Rajan wrote: i want all application names which is on task bar Can you explain a bit more ? Your orignal question was to get all name of opened windows on task bar. The link provides alternate ways to achieve that. The simplest being, if (p.MainWindowHandle != 0) { // This is a GUI process } else { // this is a non-GUI / invisible process } You get all processes using Process.GetProcesses and then loop to check as above. But there are other better means using Window's API which is also mentioned in the post.

My intention was to make the OP aware about GetProcessesByName. Thanks for your comment :thumbsup: (edited my comment)