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  • Nested for_each with lambda not possible?

    - by Ela782
    The following code does not compile in VS2012, it gives error C2064: term does not evaluate to a function taking 1 arguments on the line of the second for_each (line 4 below). vector<string> v1; for_each(begin(v1), end(v1), [](string s1) { vector<string> v2; for_each(begin(v2), end(v2), [](string s2) { cout << "..."; }); }); I found some related stuff like http://connect.microsoft.com/VisualStudio/feedback/details/560907/capturing-variables-in-nested-lambdas which shows a bug (they are doing something different) but on the other hand that shows that what I print above should be possible. What's wrong with the above code?

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  • How to set configuration properties in VS once and for all?

    - by atch
    In VS 2010RC I have to specify configuration properties and specifically included path every time I'm creating new project. Is there a way to do it just once for all future projects? I'm asking this for a reason that I'm starting to use Boost libraries and I have to specify all those paths every time I'm creating project which is bit tedious.

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  • C++ linker unresolved external symbol (again;) from other source file *.obj file. (VC++ express)

    - by bua
    Hi there, I'm back to C/C++ after some break. I've a following problem: I've a solution where I've several projects (compilable and linkable). Now I need to add another project to this solution which depends on some sources from other projects. My new project compiles without any problems (I've added "existing sources" to my project). the error: 1>Linking... 1>LicenceManager.obj : error LNK2019: unresolved external symbol "int __cdecl saveLic(char *,struct Auth *)" (?saveLic@@YAHPADPAUAuth@@@Z) referenced in function "public: void __thiscall LicenceManager::generateLicence(int,char *)" (?generateLicence@LicenceManager@@QAEXHPAD@Z) 1>LicenceManager.obj : error LNK2019: unresolved external symbol "void __cdecl getSysInfo(struct Auth *)" (?getSysInfo@@YAXPAUAuth@@@Z) referenced in function "public: void __thiscall LicenceManager::generateLicence(int,char *)" (?generateLicence@LicenceManager@@QAEXHPAD@Z) Functions saveLic, and getSysInfo are defined in files which I've added to my new project from existing ones. There is object file created during compilation with those functions in target dir, but my LicenceManager class doesn't want to link. I use some extern "C" , and #pragma pack somewhere, but no more fancy stuff. I think every directory, lib and other necessary dependencies are visible in settings for this project. Thanks for any advice.

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  • Strange difference between optimized/non optimized microsoft c++ code

    - by Anders Forsgren
    I have a c++ program with a method that looks something like this: int myMethod(int* arr1, int* arr2, int* index) { arr1--; arr2--; int val = arr1[*index]; int val2 = arr2[val]; doMoreThings(val); } With optimizations enabled (/O2) the first line where the first pointer is decremented is not executed. I assume the compiler believes that the arr1 array is not used since it thinks it can remove the decrement. Am I violating some convention in the above code? What could cause this behavior? It is a very old piece of f2c-translated code, the pointer decrement is due to the 1-based indexing of the original code.

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  • How to stop DataGridView from polluting my Designer file with column controlls?

    - by BeowulfOF
    I'm sure you know the problem, as soon as a BindingSource is connected to a DataGridView the DataGridView generates columns for each Property found in the Type of the BindingSource's DataSource and adds that crap to the Form.Designer.cs file. We only use run time generated columns, the clutter in the designer file is just waste of code, so how can we stop this "feature" of the DataGridView in WinForms?

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  • looking for a good vc++ profiler, already checked previous posts

    - by coreSOLO
    I'm looking for a good profiler for vs2008 professional edition, free or reasonably priced. I've already checked previous posts and tried about 8 profilers, but most of them are too basic or too detailed. Kindly suggest something, my requirements are as follows: It can be compiled, so that its well integrated with my application. I'm not shying away from instrumenting my methods. The output should be simple, i only need call count and time taken by methods and nothing else. I am mostly concerned about things INSIDE a method, you may call it line by line profiling. I want to select a method and know which line (expression / method call) is eating most of the time.

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  • Allocated Private Bytes keeps going up in one computer but not the other

    - by Jacob
    OK, this may sound weird, but here goes. There are 2 computers, A (Pentium D) and B (Quad Core) with almost the same amount of RAM. If I run the same code on both computers, the allocated private bytes in A never goes down resulting in a crash later on. In B it looks like the private bytes is constantly deallocated and everything looks fine. In both computers, the working set is deallocated and allocated similarly. Could this be an issue with manifests or DLLs (system)? I'm clueless. Note: I observed the utilized memory with Process Explorer.

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  • Circular Reference for Parent Link on Work Item cannot be resolved by Retry

    - by Atters
    I receive the following error; OH-TFS-Connector-0051: Operation failed getCollectionMetaData. Server Error : TF201063: Adding a Parent link to work item 1737 would result in a circular relationship. To create this link, evaluate the existing links, and remove one of the other links in the cycle. I have completely flattened out the Work Items in the source project. When retrying the migration the timestamp is modified on the pending errors however the issues are not resolved. These Work Items now have no parents or children in the source project. So I'm wondering if the retry list is no longer valid but there doesn't appear to be a away to have it update? I can run the whole migration again, however it takes 5-7 hours to just do the work items so it would be great if there is a quick fix.

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  • .NET Application with SQL Server CE Database

    - by blu
    I just started using SQL Server CE 3.5 in my WinForms Application (C# in VS 2008 SP1). I've noticed a couple of interesting things I'd like some input on: 1. Copying of sdf file to bin My sdf file is located inside of an Infrastructure project that houses my repository implementations. When the application is first debugged the sdf was copied to debug\bin. This is where all future reads/writes operate. At some point when this is deployed the file will go into a data folder using Click Once, but during development where should I be putting this sdf? Is having it in the bin typical, or are there any other recommendations? 2. Updating sdf It appears that writing to the sdf file does not immediately update the database. I am using Linq-to-SQL and am calling SubmitChanges, but on read the values are not returned. However if I close the application and re-open it the added value is there. Is there an additional flush step I need to take? What is causing this, file locking, buffering, something else? Update 3. Unit Tests I have an MS test project, and the sdf file is not being copied to the correct output directory. I have the settings: Build Action: Content Copy to Output Directory: Copy Always The message is: System.Data.SqlServerCe.SqlCeException: The database file cannot be found. Check the path to the database. I appreciate any guidance on these questions, thanks. If there is a tutorial other than what is on MSDN that you know about that would be great too. Working with CE is proving to be a difficult task and I welcome any help I can find.

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  • Howw to add new value with generic Repository if there are foreign keys (EF-4)?

    - by Phsika
    i try to write a kind of generic repository to add method. Everything is ok to add but I have table which is related with two tables with FOREIGN KEY.But Not working because of foreign key public class DomainRepository<TModel> : IDomainRepository<TModel> where TModel : class { #region IDomainRepository<T> Members private ObjectContext _context; private IObjectSet<TModel> _objectSet; public DomainRepository() { } public DomainRepository(ObjectContext context) { _context = context; _objectSet = _context.CreateObjectSet<TModel>(); } //do something..... public TModel Add<TModel>(TModel entity) where TModel : IEntityWithKey { EntityKey key; object originalItem; key = _context.CreateEntityKey(entity.GetType().Name, entity); _context.AddObject(key.EntitySetName, entity); _context.SaveChanges(); return entity; } //do something..... } Calling REPOSITORY: //insert-update-delete public partial class AddtoTables { public table3 Add(int TaskId, int RefAircraftsId) { using (DomainRepository<table3> repTask = new DomainRepository<table3>(new TaskEntities())) { return repTask.Add<table3>(new table3() { TaskId = TaskId, TaskRefAircraftsID = RefAircraftsId }); } } } How to add a new value if this table includes foreign key relation

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  • Update transaction in SQL Server 2008 R2 from ASP.Net not working

    - by Amarus
    Hello! Even though I've been a stalker here for ages, this is the first post I'm making. Hopefully, it won't end here and more optimistically future posts might actually be me trying to give a hand to someone else, I do owe this community that much and more. Now, what I'm trying to do is simple and most probably the reason behind it not working is my own stupidity. However, I'm stumped here. I'm working on an ASP.Net website that interacts with an SQL Server 2008 R2 database. So far everything has been going okay but updating a row (or more) just won't work. I even tried copying and pasting code from this site and others but it's always the same thing. In short: No exception or errors are shown when the update command executes (it even gives the correct count of affected rows) but no changes are actually made on the database. Here's a simplified version of my code (the original had more commands and tons of parameters each, but even when it's like this it doesn't work): protected void btSubmit_Click(object sender, EventArgs e) { using (SqlConnection connection = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["ApplicationServices"].ConnectionString)) { string commandString = "UPDATE [impoundLotAlpha].[dbo].[Vehicle]" + "SET [VehicleMake] = @VehicleMake" + " WHERE [ComplaintID] = @ComplaintID"; using (SqlCommand command = new SqlCommand(commandString, connection)) { SqlTransaction transaction = null; try { command.Connection.Open(); transaction = connection.BeginTransaction(IsolationLevel.Serializable); command.Transaction = transaction; SqlParameter complaintID = new SqlParameter("@complaintID", SqlDbType.Int); complaintID.Value = HttpContext.Current.Request.QueryString["complaintID"]; command.Parameters.Add(complaintID); SqlParameter VehicleMake = new SqlParameter("@VehicleMake", SqlDbType.VarChar, 20); VehicleMake.Value = tbVehicleMake.Text; command.Parameters.Add(VehicleMake); command.ExecuteNonQuery(); transaction.Commit(); } catch { transaction.Rollback(); throw; } finally { connection.Close(); } } } } I've tried this with the "SqlTransaction" stuff and without it and nothing changes. Also, since I'm doing multiple updates at once, I want to have them act as a single transaction. I've found that it can be either done like this or by use of the classes included in the System.Transactions namespace (CommittableTransaction, TransactionScope...). I tried all I could find but didn't get any different results. The connection string in web.config is as follows: <connectionStrings> <add name="ApplicationServices" connectionString="Data Source=localhost;Initial Catalog=ImpoundLotAlpha;Integrated Security=True" providerName="System.Data.SqlClient"/> </connectionStrings> So, tldr; version: What is the mistake that I did with that record update attempt? (Figured it out, check below if you're having a similar issue.) What is the best method to gather multiple update commands as a single transaction? Thanks in advance for any kind of help and/or suggestions! Edit: It seems that I was lacking some sleep yesterday cause this time it only took me 5 minutes to figure out my mistake. Apparently the update was working properly but I failed to notice that the textbox values were being overwritten in Page_Load. For some reason I had this part commented: if (IsPostBack) return; The second part of the question still stands. But should I post this as an answer to my own question or keep it like this?

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  • Change right-click context menu options in VS2008

    - by Mark Ursino
    When I right-click in my class library, I get some quick options to create things, like an Item from the popup list (New Item...), a User Control, etc. E.g. Now in my web app project, I'd like to be able to get the User Control listed in the right-click menu just like Component and Class, so I don't have to click New Item... then choose it from there. Is there a way to do this in the configuration? I can't seem to figure it out in VS.

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  • Delay KeyUp Action if User is Typing (C#)

    - by Kirk
    I have a function that is being called when the user is typing in a search box. I want to wait for the user to finish typing before I actually execute the function. I know how to easily accomplish this in JavaScript with timeouts, but how would I go about doing the same thing in C#? Also, how long should I wait before I assume the user is done typing? 100ms?

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  • How to display only selected data in combo box at run time from database?

    - by Joy1979
    I am new to .Net and I am working on one task. Below is my scenario. I have 2 tables: Table 1: Students StudentID StudentDetail 1 StudentName 2 StudentGrade Table 2: Student_data StudentDetail StudentRecords StudentName John (Default) StudentName Jacob StudentName Smith StudentGrade A (default) StudentGrade B StudentGrade C Question: When window form loads (run time) I need to display StudentRecords in combo box with StudentName = "John" and StudentGrade = "A" as default followed by other values. StudentName and StudentRecords are in Labels and values are in a ComboBox. I am using VB.Net and VS 2010 with SQL 2008r2. I would appreciate any step by step help. Apologies If my request is simple.

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  • Can I use #undef this way?

    - by flyout
    I want to get some settings I store in the registry, and if they differ from a #define I want to redefine it, could I do it this way?: #define DEFINED_X "testSetting" void LoadConfig() { regConfigX = some value previusly stored in the registry; if(regConfigX!=DEFINED_X) { #undef DEFINED_X #define DEFINED_X regConfigX } } I tought #define was used only when compiling, would this code work when running the compiled exe?

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  • Time is updating when a form is not even running

    - by onaclov2000
    A co-worker of mine had downloaded a vb example project a while back to see how to make a call or two, he discovered it today again, and noticed that while sitting in the IDE the time/date is updating automatically when the entire project is not even running. How does this work, we looked around for code but can't find anything giving it away. Any ideas?

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  • How to write gSOAP server using VC++ (VS2008)?

    - by Falcon
    Hi, I have downloaded gSOAP2.8 from sourceforge. I want to use it for writting a gsoap based server. I need to be able to invoke my C++ code from PHP UI. E.g. My php page would show something like: $res = a + b = ? [Submit] When submit button is clicked I want these parameters to be passed to my c++ function lets say compute_sum() ... and this function should be invoked with these parameters, and the results given back to my php page. I want to write this gsoap based c++ server. Can someone please help me with getting started with it? I need to know: 1] What kind of c++ code it should it be? (Windows console app, or a windows service) 2] How do I launch this server? (Would it need to be a webservice, hosted over something like apache?) Please advise and guide. Regards, Falcon

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  • Can TFS workspaces be used without being tied to a specific machine?

    - by GWLlosa
    So I've got a situation where we have a project with 10 developers. Each developer, when they come in for the day, is randomly issued a machine to use for development that day. The machine names are different, say DEV01 - DEV10. At the time that they are issued to the developers, the machines are identical, and no changes the developers make during the day are persisted on the machines (source code changes are stored in TFS, not locally). These are of course actually virtual machines, but that's not really relevant to the point at hand. The problem is that each morning, the developers run into 3 issues: 1) The machine that they are assigned may not be the same machine they were last assigned to. For example, DevMan A might have used DEV04 yesterday, and received DEV06 today. His workspace definitions are now tied to DEV06; he must create a new workspace, or migrate the old workspace to DEV04. 2) The machine that they are assigned may have been in use yesterday, and some of the mappings may conflict. For example, DevMan A might have DEV04 today, and wish to create a workspace mapping the project folder to "C:\MyProj\Solution". However, DevMan B had DEV04 yesterday, and he used the same project folder. TFS now complains. 3) This may be the first time they are on a given machine. They now need to recreate for this machine all of their source-control mappings for the new machine. All of these issues can be resolved in a straightforward fashion on a case-by-case basis, but it does sap some productivity from the morning. We'd much prefer if the TFS workspace definitions could be 'relaxed', such that they did not include the machine name in the definition somehow. Barring that, if anyone is aware of a solution to the above problems that can run automatically, or with limited user intervention, that would also be ideal.

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  • WPF tabswitch/ render takes too much time..

    - by Socrates
    I have a WPF application with many tabs.. in one tab.. i make a verycomplex vector drawing consisting of thousands of drawing visuals.. (this represents a machine and all elements need to be interactable..) It takes 3/4 seconds for drawing this for the first time..After the first draw it should be done.. The problem is if i switch to another tab and comeback, it takes atlease 2,3 seconds to show the tabpage with drawing again.. Since there is no redraw, why should it take so much time..?

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  • Select calls seems to not time out.

    - by martsbradley
    HI Folks, I have a threaded C++ program where up to three threads are calling select on a three separate socket descriptors waiting for data to become available. Each thread handles one socket and adds it to the readfds with a timeout of 300 seconds. After select returns if there is data available I'm calling recv to read it. Is there anything that I need to be aware of with winsock and threads because for some reason after a number of hours the select calls all seem to be not timing out. Can a multi threaded program select from a number of threads without issue? I know that I should have one thread listening to all three sockets however that would be a large change for this app and I'm only looking to apply a bug fix. cheers, Martin.

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  • VS2010 Code Analysis, any way to automatically fix certain warnings?

    - by JL
    I must say I really like the new code analysis with VS 2010, I have a lot of areas in my code where I am not using CultureInfo.InvariantCultureand code analysis is warming me about this. I am pretty sure I want to use CultureInfo.InvariantCulturewhere ever code analysis has detected it is missing on Convert.ToString operations. Is there anyway to get VS to automatically fix warnings of this type?

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