hey... this may not be an answer to your question but I just noticed that the if statement that you have used is totally unnecessary! The program will work in the exactly same way without it!

Aha I see the logic in this now. It's funny how something so fundamentally obvious can completely escape my thought process haha. Anyway, thank you very much :D It appears to work now :D:D

You didn't state what you're using for UI, but if you Google "master detail" along with your UI technology (Windows forms, WPF, etc.) that should get you many examples... Mark Mark Salsbery Microsoft MVP - Visual C++ :java:

Thanks N a v a n e e t h! **Edit Ok, I got it now! Thanks very much! modified on Tuesday, April 21, 2009 10:06 PM

**Edit** Oh wow after doing a ton of research and reading I got everything to work! Thank you very much! modified on Sunday, March 15, 2009 8:22 PM

Thanks for the help! I will experiment with the Double.TryParse() after I can get the intended effect from the rest of my program. I figured out how to stop my program from freezing and keep the do_while, (I also did it without the do_while, but my assignment is to make the program using do_while), but I still do not have the intended effect. northT (the label that displays the total) will update when I click on it, but I need it to update every time one of the values in the text boxes change. Here is the updated version of my code. private: System::Void northT_Click(System::Object^ sender, System::EventArgs^ e) { //Variables double nTotalIn = 0.0; double nTotalFi = 0.0; double n1 = 0.0; double n2 = 0.0; double n3 = 0.0; do { nTotalIn = Convert::ToDouble(northT->Text); n1 = Convert::ToDouble(north1->Text); n2 = Convert::ToDouble(north2->Text); n3 = Convert::ToDouble(north3->Text); nTotalFi = n1 + n2 + n3; northT->Text = nTotalFi.ToString(); } while(nTotalFi != nTotalIn); }

Hi, when a Control needs a string (e.g. the Text property of a Label), and your value isn't a string yet, I suggest you use the ToString() method which exists for all objects. Most often there are several overloads, one without any arguments producing a standard string representation, and one or more accepting some formatting information. Example: int.ToString("X8") would result in an 8-digit hexadecimal value. BTW: I would rather write if (locP->Checked)... than if (locP->Checked == true)... although both have exactly the same meaning. :) Luc Pattyn [Forum Guidelines] [My Articles] - before you ask a question here, search CodeProject, then Google - the quality and detail of your question reflects on the effectiveness of the help you are likely to get - use the code block button (PRE tags) to preserve formatting when showing multi-line code snippets

Bah, sorry about the forum :( This is the second time I've done this (accident).

Ahhh, Ok I understand now. Thanks for the help! After I busted through like 100 other errors I had in my program I finally got it to work. You're a lifesaver, have a good day!

TabascoSauce wrote: sorry about the wrong forum No problem - BTW - have a look at the System::String docs - I have a feeling you'll find the same methods on that as I used on the MFC CString class.... Java, Basic, who cares - it's all a bunch of tree-hugging hippy cr*p