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  • Visual studio: automatically update C++ cpp/header file when the other is changed?

    - by Jon
    For example, if I change the signature in a function in either the header or the cpp, I'd like it to automatically change in the other one. If I add a new function in either, it should appear in both. If I delete a function, it could probably comment out the other one. Manually having to duplicate one's changes seems silly. Some people have mentioned http://www.lazycplusplus.com/ in response to a similar question, but it seems that that's a command line tool which would require saving and then running this external tool on a particular file. That's still more manual steps than I would have thought were necessary; I'd like this to apply changes as I type.

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  • C# 5 Async, Part 1: Simplifying Asynchrony – That for which we await

    - by Reed
    Today’s announcement at PDC of the future directions C# is taking excite me greatly.  The new Visual Studio Async CTP is amazing.  Asynchronous code – code which frustrates and demoralizes even the most advanced of developers, is taking a huge leap forward in terms of usability.  This is handled by building on the Task functionality in .NET 4, as well as the addition of two new keywords being added to the C# language: async and await. This core of the new asynchronous functionality is built upon three key features.  First is the Task functionality in .NET 4, and based on Task and Task<TResult>.  While Task was intended to be the primary means of asynchronous programming with .NET 4, the .NET Framework was still based mainly on the Asynchronous Pattern and the Event-based Asynchronous Pattern. The .NET Framework added functionality and guidance for wrapping existing APIs into a Task based API, but the framework itself didn’t really adopt Task or Task<TResult> in any meaningful way.  The CTP shows that, going forward, this is changing. One of the three key new features coming in C# is actually a .NET Framework feature.  Nearly every asynchronous API in the .NET Framework has been wrapped into a new, Task-based method calls.  In the CTP, this is done via as external assembly (AsyncCtpLibrary.dll) which uses Extension Methods to wrap the existing APIs.  However, going forward, this will be handled directly within the Framework.  This will have a unifying effect throughout the .NET Framework.  This is the first building block of the new features for asynchronous programming: Going forward, all asynchronous operations will work via a method that returns Task or Task<TResult> The second key feature is the new async contextual keyword being added to the language.  The async keyword is used to declare an asynchronous function, which is a method that either returns void, a Task, or a Task<T>. Inside the asynchronous function, there must be at least one await expression.  This is a new C# keyword (await) that is used to automatically take a series of statements and break it up to potentially use discontinuous evaluation.  This is done by using await on any expression that evaluates to a Task or Task<T>. For example, suppose we want to download a webpage as a string.  There is a new method added to WebClient: Task<string> WebClient.DownloadStringTaskAsync(Uri).  Since this returns a Task<string> we can use it within an asynchronous function.  Suppose, for example, that we wanted to do something similar to my asynchronous Task example – download a web page asynchronously and check to see if it supports XHTML 1.0, then report this into a TextBox.  This could be done like so: private async void button1_Click(object sender, RoutedEventArgs e) { string url = "http://reedcopsey.com"; string content = await new WebClient().DownloadStringTaskAsync(url); this.textBox1.Text = string.Format("Page {0} supports XHTML 1.0: {1}", url, content.Contains("XHTML 1.0")); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Let’s walk through what’s happening here, step by step.  By adding the async contextual keyword to the method definition, we are able to use the await keyword on our WebClient.DownloadStringTaskAsync method call. When the user clicks this button, the new method (Task<string> WebClient.DownloadStringTaskAsync(string)) is called, which returns a Task<string>.  By adding the await keyword, the runtime will call this method that returns Task<string>, and execution will return to the caller at this point.  This means that our UI is not blocked while the webpage is downloaded.  Instead, the UI thread will “await” at this point, and let the WebClient do it’s thing asynchronously. When the WebClient finishes downloading the string, the user interface’s synchronization context will automatically be used to “pick up” where it left off, and the Task<string> returned from DownloadStringTaskAsync is automatically unwrapped and set into the content variable.  At this point, we can use that and set our text box content. There are a couple of key points here: Asynchronous functions are declared with the async keyword, and contain one or more await expressions In addition to the obvious benefits of shorter, simpler code – there are some subtle but tremendous benefits in this approach.  When the execution of this asynchronous function continues after the first await statement, the initial synchronization context is used to continue the execution of this function.  That means that we don’t have to explicitly marshal the call that sets textbox1.Text back to the UI thread – it’s handled automatically by the language and framework!  Exception handling around asynchronous method calls also just works. I’d recommend every C# developer take a look at the documentation on the new Asynchronous Programming for C# and Visual Basic page, download the Visual Studio Async CTP, and try it out.

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  • AsyncBridge? Async on .NET 4.0 using VS11

    - by Alex.Davies
    I've just found something quite cool. It's a code snippet that lets you use the real VS 11 C#5 compiler to write code that uses the async and await keywords, but to target .NET 4.0. It was published by Daniel Grunwald (from SharpDevelop).That means I can stop using the Async CTP for VS2010, which is not at all supported anymore, and a pain to install if you have windows updates turned on. Obviously I couldn't ask all my users to install .NET 4.5 beta, but .NET Demon is a VS 2010 extension, so we already have .NET 4.0. At the time of writing, VS11 is in beta still, but hopefully it's stable enough for my team to use!I would have written the code myself, but I had the wrong impression that the C# 5 beta compiler only looked in mscorlib for the helper classes it needs to implement async methods. Turns out you can provide them yourself. You can get the code here: https://gist.github.com/1961087You just add it to your project, and the compiler will apparently pick it up and use it to implement async/await. I'm at my parents' place for Easter without access to a machine with VS 11 to try it out. Let me know whether you get it to work!This reminds me of LINQBridge, which let us use C# 3 LINQ, but only require .NET 2. We should stick up a webpage to explain, with a nice easy dll, put it in nuget, and call it AsyncBridge.If you were really enthusiastic, you could re-implement the skeleton of the Task Parallel Library against .NET 2 to use async/await without even requiring .NET 4. Our usage stats suggest that practically everyone that uses Red Gate tools already has .NET 4 installed though, so I don't think I'll go to the effort.

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  • Visual Studio Crashes when using Crystal Reports Group Editor

    - by Matthew Taylor
    I have a crystal report in my Visual Studio 2008 ASP.NET project, and when I choose "Group Expert" from the Crystal Reports - Report menu, Visual Studio crashes / hangs and I have to use Task Manager to close the program. This happens no matter how many times I try, and oddly enough it seems to work fine on another computer with the same project. Any help at all in the right direction would be greatly appreciated as I am pulling my hair out trying to figure this out. I am using Visual Studio 2008 SP1, SQL Server 2005 Developer SP2, Windows Vista Enterprise SP1, and the version of Crystal Reports that came with the Visual Studio installation.

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  • Visual Studio Macros on 64 bit fail with COM error

    - by bruce.kinchin
    I'm doing some javascript development and found a cool macro to region my code ("Using #region Directive With JavaScript Files in Visual Studio"). I used this on my 32 bit box, and it worked first time. (Visual Studio 2008 SP1, Win7) For easy of reference the macro is: Option Strict Off Option Explicit Off Imports System Imports EnvDTE Imports EnvDTE80 Imports System.Diagnostics Imports System.Collections Public Module JsMacros Sub OutlineRegions() Dim selection As EnvDTE.TextSelection = DTE.ActiveDocument.Selection Const REGION_START As String = "//#region" Const REGION_END As String = "//#endregion" DTE.ExecuteCommand("Edit.StopOutlining") selection.SelectAll() Dim text As String = selection.Text selection.StartOfDocument(True) Dim startIndex As Integer Dim endIndex As Integer Dim lastIndex As Integer = 0 Dim startRegions As Stack = New Stack() Do startIndex = text.IndexOf(REGION_START, lastIndex) endIndex = text.IndexOf(REGION_END, lastIndex) If startIndex = -1 AndAlso endIndex = -1 Then Exit Do End If If startIndex <> -1 AndAlso startIndex < endIndex Then startRegions.Push(startIndex) lastIndex = startIndex + 1 Else ' Outline region ... selection.MoveToLineAndOffset(CalcLineNumber(text, CInt(startRegions.Pop())), text.Length) selection.MoveToLineAndOffset(CalcLineNumber(text, endIndex) + 1, 1, True) selection.OutlineSection() lastIndex = endIndex + 1 End If Loop selection.StartOfDocument() End Sub Private Function CalcLineNumber(ByVal text As String, ByVal index As Integer) Dim lineNumber As Integer = 1 Dim i As Integer = 0 While i < index If text.Chars(i) = vbCr Then lineNumber += 1 i += 1 End If i += 1 End While Return lineNumber End Function End Module I then tried to use the same macro on two separate 64 bit machines (Win7 x64), identical other than the 64 bit OS version and it fails to work. Stepping through it with the Visual Studio Macros IDE, it fails the first time on the DTE.ExecuteCommand("Edit.StopOutlining") line with a COM error (Error HRESULT E_FAIL has been returned from a call to a COM component). If I attempt to run it a second time, I can run it from the Macro Editor with no issue, but not from within Visual Studio with the macro explorer 'run macro' command. I have reviewed the following articles without finding anything helpful: Stackoverflow: Visual Studio 2008 macro only works from the Macro IDE, not the Macro Explorer Recorded macro does not run; Failing on DTE.ExecuteCommand Am I missing something dumb?

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  • Visual studio 2008/2010 dilemma

    - by jon
    We have a project which is being developed by a 3rd party. They are using LINQ and .NET 3.5 with Visual Studio 2008. We are currently at 2005 with .NET 2. Once they have delivered the code to us, we are unsure as to whether we will be able to compile/build their code using our current Visual Studio toolkit. I know we can download .NET 3.5, but unsure as to whether we will have problems with Visual Studio. So we are considering to upgrade. But since Visual Studio 2010 is soon to be released do we wait for that or upgrade to 2008?

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  • Visual Modeler in VS 6

    - by Yogi Yang 007
    Till date I have used only VB6 Professional for developing apps. But recently I have joined a company which owns VS 6 Enterprise (or some such version) I was just exploring what is available in VS 6 Ent. and I found Visual Modeler. The tutorial provided with it is not good enough. I was wondering if there is any detailed tutorial(s) for Visual Modeler? Is Visual Modeler a cut down version of Rational Rose? I have never used such a tool for developing apps. What are the benefits of developing apps like this? The document claims that one can speed up development and modifications of VB6 & VC++ 6 applications. How true is this claim? My company also has Ration Rose 6. Which is better Rational Rose 6 or Visual Modeler that comes with VS 6 Ent.?

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  • Modify a solution to not load projects from outside of visual studio

    - by Paul
    If I open a solution, unload a project then reopen the solution visual studio remembers not to not load the project again. How can I do this outside of visual studio? Which file is this setting stored in? Visual Studio's annoying conversion wizard won't let me open the solution without converting all the projects, I have already converted the ones I want to work with and want to set the other ones to be unloaded.

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  • Building log4cxx on visual 2005

    - by retto
    Hello, When I build the log4cxx on Visual 2005 according to instructions http://logging.apache.org/log4cxx/building/vstudio.html, I am getting error below; 1>------ Build started: Project: apr, Configuration: Debug Win32 ------ 1>Compiling... 1>userinfo.c 1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\rpcndr.h(145) : error C2059: syntax error : ':' 1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\rpcndr.h(898) : error C2059: syntax error : ',' . . . 1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\rpcndr.h(3119) : fatal error C1003: error count exceeds 100; stopping compilation When clicking the first error moves to code below /**************************************************************************** * Other MIDL base types / predefined types: ****************************************************************************/ typedef unsigned char byte; typedef ::byte cs_byte; // error indicates here Is there any comment?? Thanks

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  • Better C# Syntax Coloring for Visual Studio 2010?

    - by Oak
    Coming from Eclipse, I'm disappointed with the very limited syntax coloring capabilities offered for C# by Visual Studio (all versions, up to 2010). In particular, I'm interesting in distinct coloring for methods / fields / locals / static stuff. I'm aware Visual Assist can enhance the coloring, but I've failed to find any free alternative capable of doing that, so I'm turning to SO (I hope it's programming-related enough). Is there any free (or at least cheaper than Visual Assist) solution capable of enhancing the syntax coloring for C#?

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  • Visual Studio 2010 editions - switching from Premium (not a trial) to Ultimate trial and back again

    - by Bernard Vander Beken
    I have installed Visual Studio 2010 Premium RTM (not a trial) and would like to run the Visual Studio 2010 Ultimate Trial for a while. What is the fastest way to switch to Ultimate trial and back again to the Premium? My best idea: not uninstalling the Premium edition. running the Microsoft Visual Studio 2010 Ultimate Trial - Web Install testing the Ultimate trial uninstalling the Ultimate trial repairing the Premium installation

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  • visual studio 2010 database project, is there a visual way?

    - by b0x0rz
    started a visual studio 2010 database project. however i am only able to write sql in a text mode, there is no functionality in making the table for example in a visual view as exists when you add a new database to app_data folder and the work on it there. is this the only way and there is no visual way of doing this in the visual studio 2010 database project? or am i missing some obvious way of getting to it? thank you also if there is a tutorial anywhere (video maybe!?) please link it. i only found importing a database from an existing script video using a wizard. would like new database from scratch without wizard.

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  • Visual Studio Multi-Targeting (maintaing backwards compatability)

    - by Phillip Benages
    I know in Visual Studio 2008 you can target a specific framework with your projects, but from what I have been told if you open a project originally created in Visual Studio 2003 or 2005 in Visual Studio 2008, it requires you to upgrade the project to a 2008 project to work on it. Does Visual Studio 2010 have this same type of restriction for multi-targeting? It would be very nice being able to use features of 2010 when working in our projects that target different frameworks, but we do not want to force all of our developers to upgrade in order to continue working in these projects.

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  • Creating a tool dockable window for visual studio

    - by Morgeh
    So I have a web service system for mananging development projects, what I would like to do is create a visual studio plugin that accesses the web service and returns a list of tasks for the current users (via some sort of login). Looking round the internet I can't find any good examples or tutorials on how to create a visual studio plugin that can be docked to the bottom of the screen (same place as error list, test results, etc) Does anyone know of a good website I can look at for examples or tutorials of the basics of creating a visual studio plugin, specifically for VS2008?

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  • Visual Studio Multi-Targeting (maintaining backwards compatibility)

    - by Phillip Benages
    I know in Visual Studio 2008 you can target a specific framework with your projects, but from what I have been told if you open a project originally created in Visual Studio 2003 or 2005 in Visual Studio 2008, it requires you to upgrade the project to a 2008 project to work on it. Does Visual Studio 2010 have this same type of restriction? It would be very nice being able to use features of 2010 when working in our projects that target different frameworks, but we do not want to force all of our developers to upgrade in order to continue working in these projects.

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  • Visual Studio 2012 Very Slow Typing

    - by DaoCacao
    I have a problem. After SP1 update, passing some time, VS 2012 becomes very-very slow when typing text. Solution size is not big, PC is quite powerful, it has 16GB of RAM, SSD drive, and i7-2600. I have attached using another VS and I see in debugger a lot of exceptions: First-chance exception at 0x753BB9BC in devenv.exe: Microsoft C++ exception: CVcsException at memory location 0x0027DF0C. First-chance exception at 0x753BB9BC in devenv.exe: Microsoft C++ exception: CVcsException at memory location 0x0027DF0C. First-chance exception at 0x753BB9BC (KernelBase.dll) in devenv.exe: 0xE0434352 (parameters: 0x80131509, 0x00000000, 0x00000000, 0x00000000, 0x64BF0000). First-chance exception at 0x753BB9BC in devenv.exe: Microsoft C++ exception: CVcsException at memory location 0x0027DF0C. First-chance exception at 0x753BB9BC in devenv.exe: Microsoft C++ exception: CVcsException at memory location 0x0027DF0C. First-chance exception at 0x753BB9BC (KernelBase.dll) in devenv.exe: 0xE0434352 (parameters: 0x80131509, 0x00000000, 0x00000000, 0x00000000, 0x64BF0000). The thread 0x288c has exited with code 0 (0x0). Anyone have any ideas on what CVcsException is? Googling it gives almost nothing. How do I get rid of this problem?

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