Somewhere in that code your enumerating through a collection. Whilst you are doing this you cannot change the enumeration in any way. If you do you'll get that error.

I have this same problem did you resolve this issue and how I'd appreciate any feedback. Thanks in advance, Michael

Hurry! problem has gone!!! There was a very little mistake in the connection string path of the database is wrongly mensioned. Correcting the path solved the issue.

Check out OleDbDataReader.GetDataTypeName(index) or OleDbDataReader.GetFieldType(index) Never tried it myself but should work ;) There are 10 types of people in the world, those who understand binary and those who dont.

You have a collection of data rows. Do a foreach that recognises this fact. You can get items out of a data row by index or by name, using array notation. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog "I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

kalaveer wrote: Error processing resource 'file:///C:/Documents and Setti... The browser cannot file the document with that pathname. If you are accessing the file locally, then make sure this is the correct pathname. If you are accessing the file via HTTP, make sure the pathname is a relative or absolute URL. "We make a living by what we get, we make a life by what we give." --Winston Churchill

It means that you've created a definition without a value.  This would be used, for example, as a check if a piece of code has been compiled before, the common example is inclusion guards like #ifndef blah #define blah class blah { } #endif This will compile blah the first time, and the #ifndef will fail every other time, as blah has been #defined Christian Graus - C++ MVP 'Why don't we jump on a fad that hasn't already been widely discredited ?' - Dilbert

Before answering this question, let me tell you. This question should be asked in VC++ forum. kalaveer wrote: typedef void _TY; Its a used to synonyms. In code above, now _TY foo(); declaration is actually equivalent to void foo(); Some times it is better to use typedef. eg. typedef char* PCHAR; PCHAR can be easily used throughout the code as synonym of char*. Prasad Notifier using ATL | Operator new[],delete[][^]

export all register. if os boots fail, you could boot from safe mode by F8 and restore it. ok

In VB project properties, there are some settings for Version compatibility. The GUID must be changing on each compile probably. Please check these settings. Since I haven't worked with VB so this is just a guess. See if this is your problem. S o h a i l K a d i w a l a To Err Is Human; to Debug, Divine

Events are only detected on Windows Forms. So you can pass whatever action you want to your class library from your Form's raised event. Dont worry about the class library being unable to handle events. Allow the Form to do that. Live in fragments no longer. Only connect.

Conceptually, the Windows GUI architecture works by having a message queue containing the list of inputs a window has received and a message pump that pops items off the queue and executes their corresponding handlers one by one. In your case, the keypress event will be put in the queue and won't be processes until the button click handler completes. To get around this, you could delegate the button click handler code to a separate thread. This way, the button click handler returns quickly and the message pump processes your keypress. Of course, you would still need to code the handler of the keypress event and abort logic of the button click handler. Regards Senthil [MVP - Visual C#] _____________________________ My Blog | My Articles | My Flickr | WinMacro

Try something like this: dr.Read(); FieldLen = dr[MemoCol].Length; char[] MemoBuffer = new char[FieldLen]; int startIndex = 0; retVal = dr.GetChars(1, startIndex, MemoBuffer, 0, MemoBuffer.Length); Console.WriteLine(MemoBuffer);

kalaveer wrote: handle the unhandled exceptions Obviously not. The way to handle exceptions, is to handle them. You can handle all exceptions at a top level, but you can't then resume execution at the lower level where there were not handled. I think you need to define your question better, but if you're hoping for a way to get the framework to ignore exceptions at the point they occur, without writing a try/catch, the answer is no. This is one reason that exceptions work better than error codes. They cannot be ignored. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

You need to include the Windows.Forms ( from memory ) dll so you have access to the library. IT's just not going to be there by default, in a library project. Christian Graus - Microsoft MVP - C++ Metal Musings - Rex and my new metal blog

kalaveer wrote: Wow thats working but it displaying the form again how can i avoid this. As I already explained, you need a reference to the existing form, not creating a new one. --- It's amazing to see how much work some people will go through just to avoid a little bit of work.

You can have a look at this article. ComboBoxTree[^] Tarakeshwar Reddy MCP, CCIE Q(R&S) Experience is like a comb that life gives you when you are bald - Navjot Singh Sidhu

hmm.. It's a interesting case . hz_luyg@hotmail.com:):-D:laugh:;):laugh: luyuguo

System.IO.Directory.GetCurrentDirectory(); V. Stop smoking so you can: Enjoy longer the money you save. Moviereview Archive