Comments by Aydin Homay (Top 200 by date)

Please post your code and explain on the code what you are trying to do

May I ask why you want to resize the scrollbar and what you would like to achieve by this?

Interesting, could you provide me a referenceable link (From Microsoft) that refers to what you say?

Ok good to hear that just please do not forget to press that green accept button ;-) this will help others to hunt the solution easily

First, we can not talk based on chance or likelihood. I have not seen their IL and I don`t know so as an engineer I prefer to see the worth case scenario. Second I have studied about the performance of List vs Array and some other collections as well (not ArrayList because it is a legacy collection and most probably is going to be dropped form some point of time from the .Net or at least it was clear for me that will be slow because of implementation complexity that it has) the result of my study is documented at the following link:
https://www.codeproject.com/Articles/1258660/Large-Collections-in-Csharp-Managed-Code-Part-II
I have run several million with several iterations and collected average execution times.

I do not agree with OriginalGriff I also mentioned on my answer but I will say again:
List<t> has more strict and less stressed Add than ArrayList, then List<t> provides an extra interface (IReadOnlyList<t>) which ArrayList does not. Add in ArrayList returns int while in List<t> does not return anything this by itself is performance improvement because returning value from function has Stack overhead.

List<t> has more strict and less stressed Add than ArrayList, then List<t> provides an extra interface (IReadOnlyList<t>) which ArrayList does not. Add in ArrayList returns int while in List<t> does not return anything this by itself is performance improvement because returning value from function has Stack overhead.

Exactly after having a look, I wrote that. ;-)
I think go little bit more deep with those codes

Remove #include "stdafx.h"

But even having List of objects is better than using ArrayList because of low overhead of List<T>

Yes, totally understand I will update the solution and please read the new part.

AGREE

Then the end user should wait for 10 to 15 seconds !!!

sorry I cannot help you more than this. Good luck.

I wrote the code in Visual Studio so if you open it there it will work otherwise you need to replace that header. Could you please let me know which editor are you using?

If you have seen other examples in stack overflow and etc. and still you are not able to understand how those solutions are working, then maybe you need some fundamental topics which require a bit of time to be spent and study fist the basic topics then jump to this problem.

Hi, good to hear that. Just please do not forget to press that little green button and accept the solution as it will help others to consider as a valid solution and save their time. About the second topic, I would suggest you please create another question and ask it in a separate question plus copy paste your code this will help us to assist you better. I am looking forward to see your next question.

I think instate of writing a comment you posted an answer to your own question. I am going to update my solution to cover your question you can also remove this answer ;-)

What is the table? is a DataTable, DataSet, or you mean DataGridView

I also sent you an email with an screenshot to see how to switch the language.

You can switch the language form the right side upper corner. If you look at to the right upper corner you will see something like </>C# change it to VB. About another part of your question, the only thing that you would need to do is to change the driver in the ADO.Net I will update the solution to show you how ;-)

Please be patient and read the link. The ADO.Net has different adapters for different DBMS, it supports Oracle too, for example, go to the same link (the last link that I provided) and read about System.Data.OracleClient. As a programmer, you need to learn how to do search/research and make things working on your own.
https://docs.microsoft.com/en-us/dotnet/framework/data/adonet/ado-net-code-examples#oracleclient

We can keep in touch via this platform. Please do not forget to press that accept green button if it worked. ;-)
Git it a try I am sure you can do on your own.

Hi Back, I updated the solution and added a link that shows how to use ADO.Net in VB.Net.

How about the first link. I really think that link should solve your problem. Could you please say what it does not?

You are very welcome

Please reformat your question and use code tags to little bit make-up your question otherwise I doubt anyone will spend a time to read this ugly question in the way as it is now.

Yes you are right this is why I said use EXE encryption software to encrypt your exe

Please spend a little bit more time and re-write your question in way that everyone can understand otherwise would be so difficult to help you.

Happy to hear that, good luck

There is no such by-default behavior for VB as far as I know. I think there are some codes on your windows forms that causing such effect and you need to copy paste the code in here then we may find what is the problem.

Hi again, I updated the solution for you check it please. if it worked please don`t forget to accept solution to make it a valid solution for others as well.

In this case, since the presentation layer is in Qt I am not sure if the solution that I suggested will work. It requires more research. My first guess would be NO but who knows so many technologies and cross-compilers are out there in the Internet. Give it a try and see if you can find any link that leads you to use/integrate/mix a Qt application in .Net.

I know what you are talking about on that link. But my question is what is your suggestion? When there is no issue regarding to memory as I am not developing for an embedded system (even C# .Net is not supposed for such use) and I got enough hardware to handle relatively heavy operations. I just need to keep the order of list as it is and process with the rest of functionality.

I think in side of List is an array and array deals with pointers.

About the use of RemoveRange yes you are right but what is your suggestion if the sort of list is important to stay as it is. In any case you will have pointer correction cost.

Please do not provide me chunking algorithm I already aware of several such algorithms and I know how to solve this problem. My question is only about the wired behavior of RemoverRange or perhaps Take.

Hi Please copy also the method of CheckBoxCourses_Click to see how you are handling this event.

Keep pulling, no other solution.

Hi, if you found C# example then it is so easy to use it in VB, just add a C# project to your solution and make a dll reference to your VB project that is all you need.

Nothing. Just do not occupy a programmer place while you are not even a good program end user.

Well, I am so surprised by this question. This question by itself raise so many basic questions like, which COM? What is Class Name? What does it mean adding random components? Come on ...

Instead of giving the right answer you are redirecting to the google !!!
Everybody knows how to search in google if you don`t know the answer don`t make it fuzzy
Google for "TCP server C#" Really !!!!? OhOhooOoh perfect

Give the answer if you know else leave it.

Sergey it dose not make difference, what you need you need to know about the above library so and what you suggested in your solution is not something else than System.IO.Path

HiIt is better to set break point and truck your code line by line you will find it problem easy than here, we can not compile for you

Thank you very much just please don`t forget adding finally block and making more optimize, your SQL commands can be optimize and also figure out about SQL Injection you have this issue right now ;-)

Please ask complete question, you need to gave more detail about your development environment, language, framework and etc. what is your confuse about Boolean array ?

Do you want something like installation batch file to installing your service and setting up your installed service permissions such as user and etc. ?

Yes I did, I copied his code because I just want to use his hand write what are you looking in this answer feel free and tell me :-)

Yes it is good idea but I left it as a practice for our friend ;-)

I am agree with Richard Mac and also please provide more information about your problem such as error, exception or etc.

Please clarify your web server and your mean about Android WebView !

It can not support some functions same as EXEC(@SQL) and etc.

Your device has a SDK ?

Hi please tell me what is your programming platform? and which one programming language is your target language ?

Hi
Your question is not clear please enplane more than what you want?

Please check again my code repel inserting exist email id not new email id.

Fill DatView object from database and after than bind your list view to DataView. Make your filters on DataView

What is your ListView repository ? DataTable ?

Hi please add your entity relation diagram we can not diagnosis your problem with this information,But overall you should have teacher primary key from Group table for making one to many relation ship and you should have middle entity from group and learners for making many to many relation ship of course pay attention at this middle entity you should add group primary key and learners primary key ;-)

You can do it with Switch Case search in google and see how to use Switch Case in C# ;-)

Winch one dot net is your platform ?

Why you don`t use nvarchar data type ? it can make good facilities in implementation and you can handle data converting string to date time in the application layer.

Please explain your problem, Do you want convert String to DateTime ?

Please explain what you want exactly ?

My vote of 5 ;-)

Please add more information about you error same as error message and lab lab lab

I agree with sergey you can do it with panel visiable property and if you want make a collapsible panel and showing a little panel when you collapsed, you can decrease you panel height, however if you create your own panel user control you can use more facilities ;-)

I am agree with BillWoodruff how ever you can tell us what you need maybe you can do it without using System.Properties what is requirement ?

Why you don`t use TPL library? Task.Factory can solve your problem easily

Your welcome ;-)

You can have more solutions for identify server/client one of the famous solution is detecting Operation System or IP table information or some other solutions oriented with asp and IIS services

Your welcome just please don`t forget accept green button ;-)

Like ;-) Sergy these codes are in header file I did not write it. these codes are generated by visual studio from header file.

Dear Sergy it is not answer of my question !!!!

I get this exception in this line :
this->imageList1->ImageStream = (cli::safe_cast<system::windows::forms::imageliststreamer^>(resources->GetObject(L"imageList1.ImageStream")));

;-)

You need to the set Text property I updated solution check it again please ;-) of course down vote is not good idea when you are wrong !

Use solution#1 you just need to the add comfortable checkedlistbox event same select event and call controls creation method after deciding with switch case or if commands about selected item ;-)

Could you explain what is your meaning of auto generate ? are you want create dynamic(run time) label or text box or ...?

what line you get error ?

Hi
Your question is not clear because I don`t know you want to the hide file name or you want to the hide path from gridview and I don`t know your file name in different column with file path or they both in same column please review your question and add additional comments

What is your windows operating ? if you are using Windows 7 it can`t work well ! check the try this link I added in the solution

Could you add you codes here ?

Why you don`t want to use Telerik Report it is really powerful than Crystal Report ;-)

Hi please ask you question clearly and why you don`t user Richtextbox ?

+5

Thank you

So what is your question ?

in web application we have one sever(IIS or Apache lab lab lab) and clients, actually client sent request to server and server response to client so could you tell what is your meaning of term server?

:laugh: ;-) good job

Exactly, So I think maybe you need to the change your solution, because your solution is not clear and we don`t know where we should use it, from every where at code or just after finalizing window events.

you can see this link to the get more information

http://social.msdn.microsoft.com/Forums/windows/en-US/5d10fd0c-1aa6-4092-922e-1fd7af979663/tabpagesinsert-bug?forum=winforms

Ok test this code ;-)

public Form1()
{
InitializeComponent();
TabPage tp = new TabPage();
tabControl1.TabPages.Insert(0, tp);
}
Your code can add because you used button event in other words you are done initializing process ;-)

However it is non of your business, it is a Microsoft Problem

No you can not!!! you should read handle of TabContorol before the inserting new TabPage please check your code ;-)

Dear OriginalGriff
Your answer is not complete because you can not add new tab page with these cods you should
read TabControl handle before than !!!!!!!!!
TabPage tb = new TabPage("Hello");
IntPtr h = tabControl1.Handle;
tabControl1.TabPages.Insert(0, tb);
Yes it is a bug in Microsoft Tab Control

I suggest to you used command design pattern, however my mean is send shutdown message for your client, so you should run shutdown command with using shell when get this message from client.

+5

Good job Sergey ;-)

I think you should pay attention "gridview" word in your question maybe your mean is DataGridView how ever when you ask a question you should provide necessary details such as platform, language, library and lab lab lab

Good job guys

you question same as this question:
http://www.codeproject.com/Questions/637772/DataGridView-Column-sum
look at here and check the solution 2

Hadi trace your code and check it datenow format and compare with your database field date format, they both of dates should be same format for example dd/mm/yyyy

I agree with Maciej Your question is not clear

My vote of 5 Sergey ;)

Your question is not clear and we have not any magic for reading your mind ;)

Think about again please, what is your database? oledb or sqldb ... are not database they are ADO.net objects and jet4 is a provider, your database is MS Access maybe ...

Hi
I agree with OriginalGriff, please explain what is your mean exactly you want compare two database table schema or table data? why you don`t use SQL compare tools?

Hi Could you tell me what is your database ?

Please copy/paste you complete code at here

HiCould you tell me why you want used USB.? Why you don't want used soocket ?

My pleasure mate ;)

Hi could you tell me why you don`t used UpdateCommand in TableAdapterManager ? and please tell me what is the TemplogBindingSource? and why you don`t used WCF ? at the finally please look at this question answers http://www.codeproject.com/Questions/289586/Poling-Database-with-Timer

Please copy your source link address it is better than copy/paste source code.

Ok you can use window handles for do that

Could you post your combo box binding and combo box properties code here ?

Ok could you tell me what is data type of this column?

For the Encryption/Decryption you should have a key if you don`t have a key so you should know which one algorithm used for Enc/Dec so could you tell me do you have a key?

you can use my comment code in solution:

LstLog.ListItems(i) & LstLog.ListItems(i).SubItems(1) & LstLog.ListItems(i).SubItems(2)

Ok tell me what you want exactly ? what is your requirement ?

Oh so sorry you right I changed it ;) check it again

For Each in vb6 ? !!!

Ok I will do it

Do you want to the synchronize your Database ?

Could you write the two string builder and check the ToString() method output ? I think you should think about it again ;) you are Downvoted me !!!!!!!

My pleasure sir ;)

Check it again I have modified ;)

What is your meaning of multiple label? are you have a list<label> or same some thing?

Could you tell me what you want exactly at just 1 row ?

ya, you right if you are find a solution please tell me it is amazing for me ;)

Do you want to the find a control from asp.net web page?

Ok Ali please give it me for thinking about, But I think try to change your solution ;)

Yes you right but I just guess ;) what is your purpose ?

Hi I think your project can not find UpdatePanel on the System.Web.UI namsespace please look at the UpdatePanel namespase, maybe it was not .net component and you should add some dlls at your project reference

Yes I am agree with Mr.Zoltán Zörgő and please don`t forget green accept button after that ;) you can join views with each other tables and lab lab lab ....

Congratulation sir ;)

Hi you should check IsPostBack on FormLoad event before than binding ddl ;)

It is not a good think change your business

Hi please check this link:
Convert Excel(.xls) file to .pdf File Using iTextsharp[^]

I can`t understand what you want exactly please explain a little about your purpose.

Please tell me what you want exactly ?

Why what is your problem please show me your code and describe problem for me.

I think you want export your data from gridview to table in sql server so if my understand is true you don`t need to the any automatically action you can do it with dataset very easily just read ever row in your datagrid or dataset and generate Insert Sql command ;)

Ok tell me where you bind your sql serve column of table in your application ?

Column value where ? in datagridview or something else ? please describe your question :P

Ok Please don`t forget accept green button and the after why not sure ;)

Ok I am really happy just don`t forget accept green button please .... :)

Ok it is a good news
{ ADO.NET: Execute Reader "SELECT text FROM new WHERE memo The command text "SELECT memo FROM new WHERE memo="" was executed on connection "Data Source=.\sqlexpress;Initial
Catalog=details;UserId=sa;Password=P@ssw0rd",building a SqlDataReader. }
at here { "SELECT memo FROM new WHERE memo="" } we can see our query condition is empty and we have not any value after WHERE memo="value" so we have a problem in selected item in list box ;) try with this code :
listMemo.SelectedItem.ToString()
Please check this links it can be usefully :
http://msdn.microsoft.com/en-us/library/w67sdsex.aspx

We can sure our algorithm is the Ok but we have a problem at Select query could you trace filltext() method and send me result of cmd.commandtext value after adding memo from where condition?

Please tell me what you get Error ?

I cant understand your question what you want do that please explain more.

Hi please tell me how you are connect dual sim phone to the computer? are you using GSM modem? is your devise supported dual sim? however I think you can select your sim on your device with AT commands but please answer my questions and help to me for good understanding your problem.

Your question is not clear please review again ;)

jdate is a DataTime or nvacher ? my mean is data type of jdaye. and Please trace listYear_SelectedIndexChanged and be sure when you select the item you are get the real jdate value.

You can use WPF in your web application it is possible. why you don`t use it?

Please tell me are you have a relational database or no? and you are in windows platform or web?

So sorry I improved my answer please check it again ;)

Please explain your question I can`t understand your question.

You want press 'A' in msflexgrid or in your Form ?

Why don`t use Image box in VB6?

Yes you can use WebService technology or related tech, I will add new solution for you as soon as possible.

Your Active X need a license?

Really good ;) 5!

Please check it :
http://www.appeon.novalys.net/

Best Regards.

HiI don`t know why you give this solution because I did it in my solution before you! please check my solution before than give a new solution ;)
"more information about connection strings check it: http://connectionstrings.com/[^]"
Best Regards.

Hi, you can find your answer here http://www.codeproject.com/Articles/2608/C-Validating-TextBox-Control

Hi

I understand you want set permission to access forms with end users if yes ? so you should use database for create and save your system user accounts and they permission access level. You can create three table for this purpose.
Table1: your user accounts
Table2: your application form names
Table3: relation between users and application forms

Best Regards.

If you mean as Mixed-Mode is C++/CLI, My MFC project in C++/CLI right now, so I work in the mixed-mode state. But from the mixed-mode we have still different UI problem, because my project is MFC and C#.NET.

Dear Sergey
So thank you, I used to do it this way:

1- Create Windows Application project in C# and add in to the MFC main project
2- Add reference of C# project in MFC
3- Create your windows form in C# project
4- After using C++/CLI and lab lab lab
5- From the MFC main form I wrote these codes:

CString logicname;
logicname = "logic1";
theApp.m_LogicTemplate->OpenDocumentFile(logicname,0,1);
FindWindowByTitle fwbt("logic1", true);

HWND hwnd1 ;
hwnd1 = fwbt.FindIt();

KTCLogic::MDIParentMain ^logicmain = gcnew KTCLogic::MDIParentMain();
logicmain->TopMost = true;
logicmain->Show();

FindWindowByTitle fwbt1("KTC-Logic Editor", true);
HWND hwnd2 ;
hwnd2 = fwbt1.FindIt();

::SetParent(hwnd2,hwnd1);

So, do you have a better solution? of course I have problem in hosting my windows form in MFC Dialog Box still yet :)

Sergey actually I could not understand other solution :P ;)

Hi
I find out this solution ;)

http://msdn.microsoft.com/en-us/library/ahdd1h97%28v=vs.80%29.aspx
http://www.microsoft.com/en-us/download/details.aspx?id=2113
http://msdn.microsoft.com/en-us/library/92y4h944(v=vs.80).aspx

So what is your solution if we want opening our .NET forms from MFC main window?

I don`t understand how to tell my windows form :

in MFC :

KTCLogic::BaseForm ^baseform = gcnew KTCLogic::BaseForm();
baseform->MdiParent= CManiForm // For example
baseform->Show();

I have a problem with baseform->MdiParent= CManiForm // For example !?

Dear Sergey could you tell me how should I use please ? where I should define this dll and where I should call that ?

[DllImport("User32", CharSet=CharSet.Auto, ExactSpelling=true)]
internal static extern IntPtr SetParent(IntPtr hWndChild, IntPtr hWndParent);

I see, I will test it as soon as possible so Thank you. :)

Dear Sergey

I am currently work in mixed-mode and Previous solutions in this regard was excellent, But I have problem with my forms child and parents. I don`t know how can I set my new form in .NET(C++/CLI) MdiParent is MFC main form.

Best Regards.

Check it :
http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/f516d1c0-aee6-4f39-b930-3d5ae874e317/

Please trace your for block:

For Row = 2 To LstLog.ListItems.count
For Col = 1 To LstLog.ColumnHeaders.count
If Col = 1 Then
objExcelSheet.Cells(Row, Col).Value = LstLog.ListItems(Row).Text
Else
objExcelSheet.Cells(Row, Col).Value = LstLog.ListItems(Row).SubItems(Col - 1)
End If
Next
Next
I think you have a mistake at initializing second for.

Best Regards.

Please explain about your target record.

Please copy your code here ...! :)

Check your Interval of Timer object, because if your timer interval is less than 3000 you will get error however it`s not a good idea for do it work. This solution have a more time complexity and I suggest you change your solution you can use socket programming(server-client) for that purpose.

Did you want show your video file from vb6 program ? if yes so why you don`t use Media Player component from vb6 ?

You can use shell command, please review follow of link for more information about it and take a look:

Dim bolShell As Boolean
bolShell = SuperShell(App.Path & "\ftp.bat", App.Path, INFINITE, SW_NORMAL, HIGH_PRIORITY_CLASS)
txtStatus.Text = bolShell

http://www.vb6.us/tutorials/advanced-shell

You can use office library from the .NET just take a look at this link :

http://www.codeproject.com/Articles/28795/Very-Simple-Library-to-Work-with-Excel-in-NET

Create Data row object and use it ;)

Dear xxdaw

First check your table or view from the database with your generated query when you select each items from the combobox1. for example if your combobox have these items('A','B','C') when you select first item from the combobox1, you should have a query same as: "select * from Table1 where title='A'" ;) and if you get result with this query form your DBMS (Sql Server, Access or ...) combobox2 binding.

Best Regards.
Homay

Hi again

I used your solution #2 follow of these steps:
1- I created CLI windows application with my project name
2- I added my MFC 2010 project source codes(*.h & *.cpp) to the from of new CLI project
3- I changed "Use MFC" option from project properties to the Use "MFC in a shared DLL"
4- Build
But I get some errors same as:
1- error C3641: 'UnlockResource' : invalid calling convention '__stdcall ' for function compiled with /clr:pure or /clr:safe
2- error C3641: 'InterlockedExchangePointer' : invalid calling convention '__stdcall ' for function compiled with /clr:pure or /clr:safe
3- error C3641: 'DrawStatusText' : invalid calling convention '__stdcall ' for function compiled with /clr:pure or /clr:safe
4- error C3641: 'AtlW2AHelper' : invalid calling convention '__stdcall ' for function compiled with /clr:pure or /clr:safe
5- error C3641: 'AtlDevModeW2A' : invalid calling convention '__stdcall ' for function compiled with /clr:pure or /clr:safe
6- error C3641: 'AtlA2WHelper' : invalid calling convention '__stdcall ' for function compiled with /clr:pure or /clr:safe
7- error C2440: 'default argument' : cannot convert from 'int (__cdecl *)(int,const char *,int,const char *,const char *,...)' to 'ATL::CTrace::fnCrtDbgReport_t' C:\Program Files\Microsoft Visual Studio 10.0\VC\atlmfc\include\atltrace.h

What`s wrong ? any help would be appreciated.

Dear guys

Actually when we have legacy project from (MFC or ...) we have more problems with develop and extend that. if we develop new sub system from .NET and integrated with our legacy system we have COM technology problem or if we develop new sub system from MFC again we lost .NET feasibility... :/
Maybe if we develop new sub system from .NET and we use .exe from our legacy system with shell and ... is a better than other solutions !

Very good answer so tnx Sergey Alexandrovich kryukov ;)