Handle Exceptions and Debugging

Question

Hi all...

I have a Silverlight Chat Application.

When I run the application, I get a bunch of Exceptions - A first chance of Exception of type 'System.IO.FileNotFoundException' and A first chance of Exception of type 'System.OutOfMemoryException'.

There is no error in the code(nether logical error nor syntax error).

How to solve these issues ??

Please help...

Also, in the same application, there is one strange thing happening while debugging the code...

After I debug the Login Page and redirect to other page, then after the page load event, the debugger comes back again to the Login Page and continuously debugs it.

I am not finding a solution for this.

Please help..........

Thanks a lot in advance...

Santhosh Kumar Jayaraman · Answer

I didnt go through all your code but i figured out there is an issue inside checkuserdetails method which makes the method call recursive. Inside checkuserdetails you are calling the same callback completed event again and again. So it goes inside checkuserdetails method again and again. check the highlighted code and let me know whether the code is really required there or not? public void CheckUserDetails(object sender ServiceReference1.LoggedInDetailsCompletedEventArgs e) { try { r = e.Result; if (client == null) { client = new ServiceReference1.SilverlightEnabledWCFService1Client(); if (r == false) { errmsg = Invalid Details; } else if (r == true) { App.UserName = txt_user.Text.ToString(); // client = new ServiceReference1.SilverlightEnabledWCFService1Client(); client.LoggedInDetailsCompleted += new EventHandler (GetUserRole); client.LoggedInDetailsAsync(txt_user.Text.ToString() passwordBox1.ToString()); //System.GC.Collect(); // client.GetRoleCompleted += new EventHandler (Getrole); //client.GetRoleAsync(txt_user.Text.ToString()); } } else { if (r == false) { errmsg = Invalid Details; } else if (r == true) { App.UserName = txt_user.Text.ToString(); client.LoggedInDetailsCompleted += new EventHandler (GetUserRole); client.LoggedInDetailsAsync(txt_user.Text.ToString() passwordBox1.ToString()); //System.GC.Collect(); // client.GetRoleCompleted += new EventHandler (Getrole); // client.GetRoleAsync(txt_user.Text.ToString()); } } }

Riddhi Valecha · Answer

Hi all.... I need help in the chat application once again........ I need the following logic - I have to list all the tables names in a combo box. Select a particular table. And then list all the column names of that table in the second combo box. I get the list of tables. But I don't get the column names list. The code that I tried is there in the complaint management system also... Please help me out once again......................................... Thanks all in advance......

Riddhi Valecha · Answer

Hi all... A Million Billion and Tons and Tons of Thanks to all................. Thanks a lot for this great help................................ THANKS THANKS THANKS

Dinesh Bhoje · Answer

Hi Riddhi just check the attached file.. its working fine..

Riddhi Valecha · Answer

Hi.... I have attached my dummy project - Complaint Mgmt System. I have used the same code in Chat Application.\ After I debug the Login Page and redirect to other page then after the page load event the debugger comes back again to the Login Page and continuously debugs it. I am not finding a solution for this. Please help.......... The below method - Grid root = Application . Current . RootVisual as Grid ; root . Children . RemoveAt ( 0 ); root . Children . Add ( new ZoomData ()); is giving this issue. Thanks in advance...........

Santhosh Kumar Jayaraman · Answer

can you share your project or create new project with only the things you want to share.