Comments by Olivier Levrey

Olivier Levrey 11-Sep-15 16:08pm View

The solution I provided only works for a single computer. If you format the system, then it would be like a new computer.
There are more sofisticated solutions:
- For example, you could develop a server in your company holding your customers' licences. The software you install at your customer's would then connect to your server to check whether its licence is valid or not.
- Another example is to use hardware dongles (USB stick holding licence information like this one: http://www.matrixlock.de/english/). This solution is very efficient but from my experience is not very flexible for the end users.
No solution is perfect. Try to find one flexible enough for you and the end user.

Olivier Levrey 23-Sep-14 9:03am View

Of course I inserted a long line otherwise I wouldn't call it "testing". Please provide the complete source code to reproduce your problem. I can't help further if I can't reproduce it.

Olivier Levrey 23-Sep-14 8:58am View

I voted 4 because this code will crash sooner or later. You declared an array of 10 elements but n goes from 0 to 10, so it makes 11 elements.
The statement x[n] = i; will have unexpected results when n=10.

Olivier Levrey 23-Sep-14 8:32am View

SA didn't receive your message because you should use the "Reply" button next to his name. Reply to him and he will get back to you.

Olivier Levrey 23-Sep-14 8:12am View

Well it should. Are you sure you are pointing to the right row? Make this simple test: give a name to a row in the xaml (with x:Name="...") and set its height to 0 in code behind.

Olivier Levrey 23-Sep-14 5:57am View

I tried with Arabic. It works.

Olivier Levrey 23-Sep-14 5:43am View

Too much code, can't help with this. Please update your question with minimal code.

Olivier Levrey 23-Sep-14 4:48am View

I use the same code and I don't have any problem. It probably comes from the content. Try without the file first. For example try with m_RichCtrl.SetWindowText("blabla").

Olivier Levrey 23-Sep-14 4:25am View

Did you try anything before?

Olivier Levrey 23-Sep-14 4:16am View

Could you provide a piece of code to reproduce this case? If I can reproduce it, maybe I can also find a workaround for it.

Olivier Levrey 30-Aug-13 18:57pm View

You should post your question in the Question section instead of adding a comment. If you post some code and give me the link to your question, I'll have a look at it.

Olivier Levrey 5-Dec-12 8:05am View

I updated my question with a more detailed example. Thanks for your help.

Olivier Levrey 5-Dec-12 7:56am View

Yes you are right. Thanks. I'll update my question in a minute.

Olivier Levrey 5-Dec-12 6:31am View

Well... your solution works of course but because you get the string of the TextBlock. I gave TextBlock just as an example.

In my app, this is a more complex object: a panel containing an image and a text. I tried to bind the text part using your approach: it works. But the image part is still "stolen"...

Olivier Levrey 13-Jun-12 4:01am View

Thank you for keeping me updated ;)

Olivier Levrey 12-Dec-11 3:49am View

Deleted

Reason for my vote of 5
You are absolutely right. I've never had a look to the Buffer class. Thanks for your feedback.

I think array.Length should be replaced by bytes.Length in your ReadIntArray function.

Olivier Levrey 26-Aug-11 16:54pm View

All the code is in my answer:
1- in the Form1 constructor, I handle DropDownItemClicked event to know when the user clicks on of the files: Just add your own code in the OpenFile method.
2- In the AddToMRU method, I hard coded 5 as the maximum number of files to keep. Just change this value to whatever you want.

Olivier Levrey 2-Aug-11 9:56am View

I updated my answer. Please do these simple tests.

Olivier Levrey 2-Aug-11 9:17am View

I corrected my answer. Thanks for that.

Olivier Levrey 2-Aug-11 9:15am View

I thought TabPage had a readonly Index property but I was wrong. Hence, my answer was not clear: I meant this readonly property would be set automatically...
I didn't mean the list can't be edited as you said.

Olivier Levrey 2-Aug-11 9:00am View

Good too. 5.

Olivier Levrey 2-Aug-11 3:34am View

What do you mean by "records from Objt_List in string variable"? I see a record1 in your code but I don't see any Obj_List. And how the string should look like? Please give example.

Olivier Levrey 1-Aug-11 12:38pm View

I agree. The struct solution seems clearer and more appropriate. Have a 5.

Olivier Levrey 29-Jul-11 10:19am View

Good advice. My 5.

Olivier Levrey 29-Jul-11 10:19am View

Everything is said! My 5.

Olivier Levrey 29-Jul-11 9:58am View

List is a generic class, you must specialize it with a type: write List<float> or List<int> for example.

Use the Add method to add values to your measures list.

And don't recreate the curve inside BeginInvoke. Initialize your graph and create the curve in the constructor for example, and inside BeginInvoke put only the code to update the curve points.

Olivier Levrey 29-Jul-11 8:42am View

Deleted

List is a generic class, you must specialize it with a type: write List<float> or List<int> for example.

Use the Add method to add values to your measures list.

And don't recreate the curve inside BeginInvoke. Initialize your graph and create the curve in the constructor for example, and inside BeginInvoke put only the code to update the curve points.

Olivier Levrey 29-Jul-11 8:39am View

No I think, EOF will be put only after closing the file (I am not sure of that but it is what I understand from the description).

Olivier Levrey 29-Jul-11 6:11am View

So I can't help you further since I have very little knowledge in developping drivers...

Olivier Levrey 29-Jul-11 5:13am View

It is better to use the "Improve question" instead of posting a solution...

I don't know what your OnInputEnable is, but you should try to comment out all the code you added untill it works. Then uncomment some parts to know exactly which lines make your control disabled.

Olivier Levrey 29-Jul-11 4:19am View

Easy. My 5.

Olivier Levrey 29-Jul-11 4:19am View

You are welcome. You may accept this solution if it solved the problem.

Olivier Levrey 29-Jul-11 3:57am View

Oh yes sorry, I forgot the cast... I will correct my solution thank you.

Olivier Levrey 28-Jul-11 10:21am View

I agree, you probably found out where the issue comes from.

Olivier Levrey 28-Jul-11 10:19am View

Thank you Harish

Olivier Levrey 28-Jul-11 8:17am View

Isn't WPF resolution independant? I've never used them so far but I read something like that...

Olivier Levrey 28-Jul-11 5:18am View

Thank you very much Amund.

Olivier Levrey 28-Jul-11 4:37am View

OK. I suppose declaring the parameter as out byte shoud be enough then.

Olivier Levrey 28-Jul-11 3:55am View

I moved this to the question.

Olivier Levrey 28-Jul-11 3:55am View

I moved this to the question.

Olivier Levrey 28-Jul-11 3:54am View

You should update your question instead of posting a solution.
And using formating tags makes the code easier to read.
I did it for you.

Olivier Levrey 28-Jul-11 3:48am View

Your advice is a good point and this article is a good start, but when dealing with arrays in read/write mode everything becomes more complicated...
I voted 4.

Olivier Levrey 28-Jul-11 3:45am View

I updated my answer for the array. But you still didn't explain about the last parameter: is it just a value, or a string? how is it filled? As you can see, marshaling technique changes depending on what you want.

Olivier Levrey 28-Jul-11 3:26am View

Thank you DaveyM69

Olivier Levrey 27-Jul-11 9:05am View

Please share your code if you want help.

Olivier Levrey 19-May-11 3:31am View

Sleep is sometimes necessary. Read will block untill data is available: correct. But it doesn't mean you will receive the complete answer from the device (I had the case several times in past). The only way to ensure the answer is received completely is waiting for a special character (usually '\r') which means something like "end of transmission".
Unfortunately, not all devices do this. Thanksfully it becomes very rare nowadays, but as you stated industrial devices are often buggy and they sometimes forget to implement this essential feature...
And only an "evil" Sleep can be used to workaround this.

Olivier Levrey 18-May-11 9:38am View

OP updated his question. Please see.

Olivier Levrey 18-May-11 7:41am View

I just changed the code tag into pre tag. Maybe you will want to update your question to keep only the relevant part of your code. Posting so much code usually discourages most of us...

Olivier Levrey 18-May-11 7:26am View

I don't understand why you split your string if you don't want to separate the words...
Can you give an example of what you want to do?

Olivier Levrey 18-May-11 5:03am View

Sure. Same as :: operator for local variables/global variables.

Olivier Levrey 18-May-11 3:59am View

I already saw this article. Good link. 5.

Olivier Levrey 18-May-11 3:56am View

It is generally not very easy to use WMI. I would suggest something simpler.

Olivier Levrey 18-May-11 3:47am View

Very good answer. My 5.

Olivier Levrey 18-May-11 3:35am View

This is up to you:
1- If you want to get the "real" top-left point (geometrically speaking), then Legor's solution is the right one and you should accept it.
2- If you want to keep always the same handle as your reference point (I wouldn't call it top-left because it might change after a rotation), then you just need to store its index (actually I suppose it would just be the first one, so index=0)

Olivier Levrey 18-May-11 3:32am View

What is that? Is it your solution, or do you have a question regarding all this code? If so, please use the "Improve question" widget instead of posting an answer.
And please use pre tag to format your code to make it easier to read.

Olivier Levrey 18-May-11 3:28am View

Thank you SA.

Olivier Levrey 18-May-11 3:26am View

Thanks Rick.

Olivier Levrey 17-May-11 13:09pm View

The type is incorrect, it is true, but the important thing in OP's error is the Handle property is readonly and hence cannot be assigned.

Olivier Levrey 17-May-11 9:13am View

Great answer. You were faster than me. Have a 5.

Olivier Levrey 17-May-11 8:56am View

So go to step 2: If it still doesn't work, consider creating a fresh new C++/CLI project and add you existing source files to this new project.

Changing the options on existing projects is often messy, I suggest you to start over with a new project and add your existing .h and .cpp files.

Olivier Levrey 17-May-11 8:52am View

You are right, this solution is not suitable for a big number of plugins. I would probably rather use a pool of threads instead to make sure I don't exceed the limit.

Olivier Levrey 17-May-11 8:51am View

Ok good but you didn't really help OP there. You just told him to read MSDN...

Olivier Levrey 17-May-11 8:45am View

I agree. 5.
For the top-left point: lowest x and lowest y.
Rotating the rectangle won't change anything, unless you want the chosen handle to move as well, but in that case it will not be the "top-left" anymore.

Olivier Levrey 17-May-11 8:40am View

Sure. 5.

Olivier Levrey 17-May-11 8:40am View

Form class has only one constructor, and it is parameterless. I think you wanted to use the Parent property.

Olivier Levrey 17-May-11 8:36am View

This could help. 5.

Olivier Levrey 17-May-11 8:32am View

Which exception? What is the message?

Olivier Levrey 17-May-11 8:28am View

I agree. 5.

Olivier Levrey 17-May-11 8:14am View

This works but you don't need ToCharArray. The String class has an indexed property and should be enough in this case.
I voted 4.

Olivier Levrey 17-May-11 3:29am View

De rien ;)

Olivier Levrey 16-May-11 10:26am View

Thank you very much Stefan.

Olivier Levrey 16-May-11 7:46am View

Yes it could. 5.

Olivier Levrey 16-May-11 7:44am View

Good advice. 5.

Olivier Levrey 16-May-11 7:43am View

I don't see how this could help...

Olivier Levrey 16-May-11 6:39am View

The down-voter probably voted on the first revision of my answer while I was changing it:
my first answer was not so detailed and could be misunderstood.
Thank you Nithin.

Olivier Levrey 16-May-11 4:08am View

Your question is not clear. Do you want to detect whether user clicked the first point or not to close the polygon?

Olivier Levrey 16-May-11 3:38am View

It is not possible as far as I know. The only possibility is to make your columns smaller, or display fewer columns.

Olivier Levrey 16-May-11 3:35am View

Thank you SA.

Olivier Levrey 13-May-11 11:48am View

Your remark about posting so many errors is OK, but I think OP won't be able to solve his problem without a few ideas. Please see Albert's answer and mine.

Olivier Levrey 13-May-11 11:46am View

Thank you Albert. It is often tricky to solve linker issues, especially for beginners. I think OP will have some more problems: have a look to his last comment.

Olivier Levrey 13-May-11 11:43am View

Yes, you need the .cpp file. But it sounds strange. Do you mean you are using MainFrm.cpp from another project?? In that case, I predict a lot of errors coming...

Olivier Levrey 13-May-11 11:41am View

OK :)

Olivier Levrey 13-May-11 11:40am View

I think you are close to OP's problem. I added my own advices. I voted 4.

Olivier Levrey 13-May-11 11:16am View

Oh so is everything working properly? I thought you had another problem.

Olivier Levrey 13-May-11 10:38am View

I don't undersand \x1A. What is that? Why do you send this at the end of the message? Is it written in your documentation?

Olivier Levrey 13-May-11 10:34am View

OP posted an answer instead of a comment. Please see.

Olivier Levrey 13-May-11 10:33am View

To give feedback to an answer, post a comment under it instead of posting an answer. Click "Add comment" under the answer you want to comment on.

Olivier Levrey 13-May-11 10:21am View

Good link to quickly understand asynchronous tasks using threads and updating the UI.
My 5.

Olivier Levrey 13-May-11 8:09am View

Almost correct. My 4. stoNext pointer is not updated properly.

Olivier Levrey 13-May-11 8:04am View

Edited for readability.

Olivier Levrey 13-May-11 4:48am View

Ok good ;)

Olivier Levrey 13-May-11 4:46am View

I personnaly don't like non-modal dialogs much and use them in very rare cases. Users find them annoying, they don't know where to put them. However I do use modal dialogs quite often. Not only for loading/saving files: our users like wizards. They are mostly biologists and are often affraid about computers, so they appreciate to be guided. The ultimate rule could be: do not show them more than one button at a time otherwise you would stress them!

Olivier Levrey 13-May-11 4:18am View

Good advices. My 5.
OP is maybe using a non-modal dialog though (he didn't say). Anyway the general ideas about threading and data updating are good.

Olivier Levrey 13-May-11 4:08am View

Good enough. My 5.

Olivier Levrey 13-May-11 4:05am View

Good answer. Have a 5.

Olivier Levrey 13-May-11 3:49am View

Correct and good advice. 5.

Olivier Levrey 13-May-11 3:33am View

Ok good then. You are welcome.

Olivier Levrey 12-May-11 3:22am View

Have my 5 for the pragma

Olivier Levrey 12-May-11 3:20am View

Ok good then, your suggestion was the good one ;)

Olivier Levrey 11-May-11 12:14pm View

So you didn't remove the points. You just moved your x axis.
It is a good solution if you want to keep all points.

Olivier Levrey 11-May-11 12:08pm View

Ok good. Don't forget to accept this answer or vote for it ;)

Olivier Levrey 11-May-11 12:01pm View

You should set graphControl1.GraphPane.XAxis.Scale.MinAuto and MaxAuto properties to true.

Olivier Levrey 11-May-11 11:49am View

My 5.

Olivier Levrey 11-May-11 11:48am View

My 5.

Olivier Levrey 11-May-11 10:22am View

Are you sure you just need to send "AT" to the device? Usually we send '\r' for the last character. Read your device documentation carefully about that.

Olivier Levrey 11-May-11 9:16am View

What do you do in ReadxPortGSM? And TransxPortGSM? Is it the code at the top? We can't guess if you don't tell...

Olivier Levrey 11-May-11 8:50am View

Good point! 5+

Olivier Levrey 11-May-11 8:30am View

Thank you Kim.

Olivier Levrey 11-May-11 8:17am View

I agree. Have my 5.

Olivier Levrey 11-May-11 8:05am View

You are completely right. Have my 5.

Olivier Levrey 11-May-11 5:19am View

Ok good to know.

Olivier Levrey 11-May-11 4:22am View

Google rules. My 5.

Olivier Levrey 11-May-11 4:18am View

I agree. Have a 5.

Olivier Levrey 11-May-11 4:03am View

I updated my answer. Please see.

Olivier Levrey 11-May-11 3:52am View

You are welcome.

Olivier Levrey 11-May-11 3:51am View

Thanks. I just did a quick google like so many other answers...
Your solution seems a better one.

Olivier Levrey 11-May-11 3:50am View

I never had to do such a thing and therefore didn't know SendInput. It looks good. My 5.

Olivier Levrey 11-May-11 3:48am View

Thank you for understanding me SA.

Olivier Levrey 10-May-11 10:06am View

Try it without the debugger and you will see it works (I do it often and many other people do). If you use the debugger, it will catch the exception before you.

Olivier Levrey 10-May-11 10:03am View

"Get Length" is not valid it should GetLength (without space). But I think you just wrote it wrong...
What do you mean by "the library functions". Do you mean CString class definition? What you show is not the CString definition. At least not the one included in Visual Studio. If you are using a custom CString class, it is not a good idea...

Olivier Levrey 10-May-11 9:55am View

There is no "CString followed by int" there. Everything is normal. The error is somewhere else. Double-click the error message to know which line is causing this error.

Olivier Levrey 10-May-11 9:47am View

Mmmm if you removed the line, it should compile. Are you sure the error is not on another line? Can you copy the code giving the error again?

Olivier Levrey 10-May-11 9:43am View

Remove the int GetLength(); line.

Olivier Levrey 10-May-11 9:36am View

Post the code please. The code you posted in your question doesn't match the error you describe.

Olivier Levrey 10-May-11 8:26am View

Could you please translate into english before posting?

Olivier Levrey 10-May-11 8:21am View

Laurence you don't need to add ViewModel.handledException adn you don't need the try/catch block because a BackgroundWorker already implements this.

Have a look to RunWorkerCompletedEventArgs argument in the RunWorkerCompleted function: you will find the Error property. This property is the exception thrown by the DoWork function if there was one.

Olivier Levrey 10-May-11 8:15am View

Have my 5.

Olivier Levrey 10-May-11 8:06am View

Ok good :)

Olivier Levrey 10-May-11 8:00am View

What is the problem? Compilation? Runtime?
We can't guess what is wrong...

Olivier Levrey 10-May-11 7:57am View

I updated my answer. Tell me if it works (I didn't test it).

Olivier Levrey 10-May-11 6:42am View

Yes it is a little bit harder with both vertical and horizontal lines:
- you need 2 arrays (one for horizontal lines, one for vertical ones)
- you need a bool member to know it you are moving a horizontal line, or a vertical line (this bool member will be updated in the "find closest line" part)
- you have to change the "find closest line" part: find the closest vertical line, find the closest horizontal line, then compare both and keep the closest.

Olivier Levrey 10-May-11 5:34am View

You are welcome.

Olivier Levrey 10-May-11 5:30am View

After setting the image to null, you should remove your paint handler and then repaint again:


pictureBox1.Paint -= pictureBox1_Paint;
pictureBox1.Invalidate();

If everything is working, then you can click on "accept answer".
Thanks.

Olivier Levrey 10-May-11 5:15am View

1- you shouldn't initialize xLines in the Paint handler but in the constructor. Otherwise you will reset it for each repaint to its default value.

2- I changed my MouseMove handler but you didn't: remove the "find closest lin" part.

Olivier Levrey 10-May-11 5:04am View

This will not help at all. OP is facing a problem C# side...

Olivier Levrey 10-May-11 4:50am View

I used this code in my own applications, I know this works. There should be something you did wrong. Use the debugger to see if you go into your handlers and check the x values. Check that the correct point is selected, ...

Olivier Levrey 10-May-11 4:45am View

Frustrating, dangerous, meaningless, and so on ;)

Olivier Levrey 10-May-11 4:43am View

Thank you Dalek.

Olivier Levrey 10-May-11 4:34am View

If OP did the dll by himself, the tool can help find that some symbol were not exported as expected.

Olivier Levrey 10-May-11 4:31am View

I updated my answer. You need to add a selectedLineIndex member, the MouseDown handler and change the MouseMove handler.

Olivier Levrey 10-May-11 4:15am View

Sorry remove ".X".
In this code the closest line will be chosen automatically. If you want to choose it manually, you will need to add more code.
Do you want to ask the user to choose it with a combo box for example or something?

Olivier Levrey 10-May-11 3:47am View

Have my 5 for this answer. I gave a solution for the second part.

Olivier Levrey 9-May-11 12:53pm View

Sorry but I don't see the point.
Your solution relies on BeginInvoke as well and you are just adding an extra layer that makes error handling harder than needed. If OP wanted to handle the error and continue using the application it would make sense, but he said he just wants to reset it to its original state, so why would you make things more complicated than they are?

Olivier Levrey 9-May-11 12:39pm View

Well Laurence said the application will just return to its initial state after the exception is thrown, so I don't think it is necessary to setup a complicated error handler.

Olivier Levrey 9-May-11 12:20pm View

No you shouldn't use CurrentDispatcher, you must use the dispatcher from your main form (or any form created from the main thread).

Olivier Levrey 9-May-11 8:58am View

Did you check this thread?
http://stackoverflow.com/questions/758233/winforms-to-wpf-conversion-begininvoke-to-what
I think you just need to put Dispatcher somewhere.
Thank you for the vote.

Olivier Levrey 9-May-11 8:00am View

Are you using STL? MFC? something else?

Olivier Levrey 9-May-11 6:30am View

I know. This is why I said the above example is not correct. I didn't say the above code will not compile without catch, I said it will not execute the last part without a catch block.

Olivier Levrey 9-May-11 4:17am View

Mmmm... you shouldn't recommand to use WinExec since this function is provided only for 16-bit Windows compatibility.
I voted 2.

Olivier Levrey 9-May-11 4:14am View

Good answer. Have a 5.

Olivier Levrey 9-May-11 4:12am View

I don't understand who down-voted this. This answer is correct. Have a 5.

Olivier Levrey 9-May-11 4:11am View

Correct. 5.

Olivier Levrey 9-May-11 4:09am View

Don't post a question as an answer. Please update your question or post a comment under a specific answer to gove feedback to the poster.

To answer your question here: since you have a return statement in the catch block, if an exception is raised, all code after the finally block will be skipped. If you want int x2 = 123; to be executed in any case (exception or not), then you need to put it inside the finally block.
In this example, the code will be executed only if no exception is raised.

Olivier Levrey 9-May-11 4:05am View

An example is always welcome. Have a 5.

Olivier Levrey 9-May-11 4:04am View

I Agree. 5.

Olivier Levrey 9-May-11 4:03am View

My 5. I needed to see the previous versions of the question to see your comments about ex1, ex2, ...
It may be better to write those examples in your answer ;)

Olivier Levrey 9-May-11 3:57am View

I agree. 5.

Olivier Levrey 9-May-11 3:56am View

I voted 4 because this is not completely correct. The code under the finally block will execute only if there is a catch block.

Olivier Levrey 9-May-11 3:53am View

I agree. 5.

Olivier Levrey 6-May-11 11:26am View

You answered faster than me. Have a 5 ;)

Olivier Levrey 6-May-11 10:37am View

It looks like a good start. Have my 5.

Olivier Levrey 6-May-11 10:10am View

Thank you SA.
ZegGraph control already contains a ToolTip. The event I used in this answer just returns the string to display inside it.

Olivier Levrey 6-May-11 10:03am View

I updated my answer. Just an idea...

Olivier Levrey 6-May-11 8:41am View

You are welcome.
If you consider that your problem was solved, you can accept my solution. Otherwise if you have other questions you can use the "improve question" widget or drop another comment.

Olivier Levrey 6-May-11 8:09am View

This looks like a much better approach. Have a 5 SA.

Olivier Levrey 6-May-11 4:39am View

You are welcome :)

Olivier Levrey 6-May-11 4:32am View

I updated my answer to print x and y as well. Please see.
If this solves your problem, then you can accept my answer :)

Olivier Levrey 6-May-11 3:50am View

The important thing is: what did you put inside ReadThread? This part is making your application hang.

Olivier Levrey 6-May-11 3:45am View

I added your comments into the question.

Olivier Levrey 5-May-11 10:39am View

Oh oh I didn't understand you wanted to use mixed code! What is the type of your linked list? If it is not a .NET class, then yes you should change your String object into a char* with the Marshal::StringToHGlobalAnsi function. And don't forget to free the memory with FreeHGlobal.

Olivier Levrey 5-May-11 8:31am View

I am glad I can follow your conversation guys, but my email box is about to explode ;) Could you please put comments somewhere else? Thanks :)

Olivier Levrey 5-May-11 8:21am View

Did you try something?

Olivier Levrey 5-May-11 7:41am View

I agree, writing your own installer could be painful.
And the link is good as well.
Have a 5 barneyman.

Olivier Levrey 5-May-11 7:36am View

I am affraid I can't help you further since I don't know IVideoWindows interface. I thought your problem was pure MFC, but it seems it is also related to DirectX. Barneyman can maybe help you more.

Olivier Levrey 5-May-11 7:33am View

Don't be sorry, it's ok. It looks like you found a solution to your problem so everything is fine. I just gave my feelings about such a choice.

Olivier Levrey 5-May-11 5:43am View

Yes good explanations. My 5 as well.

Olivier Levrey 5-May-11 5:08am View

Then I would say that your original design choices are wrong.

If somebody asked me "What do you think about creating generic controls", I would just answer "forget it" even before seeing your problem. The designer is very powerful but is limited in many situations and I would bet that dealing with generic controls is part of that limitations.

But you are free not to follow my advice. If you can fix that problem without recoding everything, it would be of course welcome.

Good luck.

Olivier Levrey 5-May-11 5:02am View

Good solution. Have a 5.

Olivier Levrey 5-May-11 5:02am View

Good solution. Have a 5.

Olivier Levrey 5-May-11 5:01am View

It looks like the most reasonnable solution. My 5.

Olivier Levrey 5-May-11 4:34am View

Good point. It deserves a try.

Olivier Levrey 5-May-11 4:16am View

Normally this should work on any window you click. ClientToScreen is the function to convert client coordinates to screen coordinates. But make sure you are calling this method from the window which fired the click event, otherwise the convertion will convert from the wrong window.

Olivier Levrey 5-May-11 4:07am View

The List<T> class is part of the System::Collection::Generic namespace. Make sure you have using namespace System::Collections::Generic; at the top of your cpp file.

And replace char by Char (capital letter). I wrote it by mistake (you should use System::Char struct and not the native char).

For your last question: why do you want to use char*? Can't you use String?

Olivier Levrey 4-May-11 11:53am View

Zip is a standard. You can use different libraries on a same file. Even if you compressed a zip file with another library, DotNetZip will be able to uncompress it.

Olivier Levrey 4-May-11 11:06am View

Mmmm probably because the worker was created from a different thread then.
Anyway OP can always try this, it won't hurt.

Olivier Levrey 4-May-11 10:54am View

This is not correct. You don't need to use Invoke or BeginInvoke in the ProgressChanged handler: the BackgroundWorker class does it for you.
Have a look to this link: http://msdn.microsoft.com/en-us/library/system.componentmodel.backgroundworker.progresschanged.aspx

Olivier Levrey 4-May-11 9:56am View

I don't understand where the problem comes from but I gave you a piece of advice: see my uptaded answer. I hope this will help.

Olivier Levrey 4-May-11 8:38am View

So there is something else you are not telling or showing in your code because I don't see any reason why the concatenation would fail here.
Are your using threads? Is SqlStr3 a shared variable?...

Olivier Levrey 4-May-11 8:23am View

You will always need to do a few manual conversions, but this link is a good start. Have a 5 Ashishmau.
@naraayanan: you should accept this answer if it solved your problem, or at least vote for it.

Olivier Levrey 4-May-11 8:20am View

I agree. 5.
Just keep the enum with the class or interface which is using them. It doesn't make sense to separate the enum.

Olivier Levrey 4-May-11 8:19am View

I agree. 5.

Olivier Levrey 4-May-11 8:14am View

Correct. My 5.

Olivier Levrey 4-May-11 8:11am View

Good link. 5.

Olivier Levrey 4-May-11 8:07am View

I think you should reconsider your design. If you have similar fields in different classes, it means you can group them into a base class or/and interfaces. You can implement a Copy function in each Interface for example, and the Copy function of the inherited class will call the different Copy functions from each Interface it inherits from.

Olivier Levrey 4-May-11 8:02am View

Maybe. Unless he gives more details, we can't really know...

Olivier Levrey 4-May-11 8:00am View

OP added answers instead of comments. Please see.

Olivier Levrey 4-May-11 7:59am View

Please use the "Improve question" widget instead of posting an answer.

Olivier Levrey 4-May-11 7:56am View

OP is using .NET, not native C++...

Olivier Levrey 4-May-11 7:28am View

It is not very clear. Could you rephrase your question please?

Olivier Levrey 4-May-11 4:07am View

Thank you Manfred.

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