You can actually [debug MSBuild][1] scripts with Visual&amp;nbsp;Studio&amp;nbsp;2010 now. It requires some hacking, and it isn&#39;t officially supported, but it is an option.

Otherwise use the [`Message`][2] task. Normal rules for referencing [`Properties`][3], [`Items`][4] and [`Item Metadata`][5] (also referred to as [batching][6]) apply.

This example:

    &lt;Project DefaultTargets=&quot;Build&quot;
             xmlns=&quot;http://schemas.microsoft.com/developer/msbuild/2003&quot;&gt;
      &lt;ItemGroup&gt;
        &lt;TestItem Include=&quot;test1&quot; /&gt;
        &lt;TestItem Include=&quot;test2&quot; /&gt;
        &lt;TestItem Include=&quot;test3&quot; /&gt;
      &lt;/ItemGroup&gt;

      &lt;PropertyGroup&gt;
        &lt;TestProperty&gt;Property Value&lt;/TestProperty&gt;
      &lt;/PropertyGroup&gt;

      &lt;Target Name=&quot;TestMessage&quot; AfterTargets=&quot;Build&quot; &gt;

        &lt;!-- Use $(Property Name) to reference a property --&gt;
        &lt;Message Text=&quot;$(TestProperty)&quot; Importance=&quot;high&quot;/&gt;

        &lt;!-- Use @(Item Name) to output a semi-colon
             separated list of items on one line      --&gt;
        &lt;Message Text=&quot;@(TestItem)&quot; Importance=&quot;high&quot;/&gt;

        &lt;!-- Use %(Item Name.Metadata Property Name) to 
             call the Message task once for each item.   --&gt;
        &lt;!-- This will output each item on a separate line --&gt;
        &lt;Message Text=&quot;%(TestItem.Identity)&quot; Importance=&quot;high&quot;/&gt;

      &lt;/Target&gt;
    &lt;/Project&gt;

Will produce this output:

    Property Value
    test1;test2;test3
    test1
    test2
    test3

  [1]: http://blogs.msdn.com/b/visualstudio/archive/2010/07/06/debugging-msbuild-script-with-visual-studio.aspx
  [2]: http://msdn.microsoft.com/en-us/library/6yy0yx8d.aspx
  [3]: http://msdn.microsoft.com/en-us/library/ms164288(v=vs.80).aspx
  [4]: http://msdn.microsoft.com/en-us/library/ms171453.aspx
  [5]: http://msdn.microsoft.com/en-us/library/ms164313.aspx
  [6]: http://msdn.microsoft.com/en-us/library/ms171473.aspx



The docs only say that Python interpreter performs &quot;basic optimizations&quot;, without going into any detail. Obviously, it&#39;s implementation dependent, but is there any way to get a feel for what type of things could be optimized, and how much run-time savings it could generate?

Is there any downside to using -O?

The only thing I know is that -O disables `assert`, but presumably one shouldn&#39;t use `assert` for things that could still go wrong in production.

What does Python optimization (-O or PYTHONOPTIMIZE) do?

Usually when I write anything in C++ and I need to convert a `char` into an `int` I simply make a new `int` equal to the char. 

I used the code(snippet) 


     string word;  
     openfile &gt;&gt; word;
     double lol=word;


I receive the error that 

    Code1.cpp cannot convert `std::string&#39; to `double&#39; in initialization 

What does the error mean exactly? The first word is the number 50. Thanks :)

C++ string to double conversion

How do I output a variable value to the log from MSBuild?

I am trying to debug an MSBuild script and would like to output a variable&#39;s value to the log.


How to output a variable value to the log from MSBuild

<p>How do I output a variable value to the log from MSBuild?</p>
<p>I am trying to debug an MSBuild script and would like to output a variable's value to the log.</p>


How can I restart a WPF Application?
In windows Forms I used

`System.Windows.Forms.Application.Restart();`

How to do it in WPF?

How do I restart a WPF application?

I need to know if a Date is between a DateRange. I have three dates:

```c#
// The date range
DateTime startDate;
DateTime endDate;
   
DateTime dateToCheck;
```

The easy solution is doing a comparison, but is there a smarter way to do this?



How to know if a DateTime is between a DateRange in C#

In a thread, I create some `System.Threading.Task` and start each task.

When I do a `.Abort()` to kill the thread, the tasks are not aborted.

How can I transmit the `.Abort()` to my tasks ?

How do I abort/cancel TPL Tasks?

I am trying to implement the MVP method for the first time, using WinForms.

I am trying to understand the function of each layer.

In my program I have a GUI button that when clicked upon opens a openfiledialog window.

So using MVP, the GUI handles the button click event and then calls presenter.openfile();

Within presenter.openfile(), should that then delegate the opening of that file to the model layer, or as there is no data or logic to process, should it simply act on the request and open the openfiledialog window?  

**Update:**  I have decided to offer a bounty as I feel I need further assistance on this, and preferably tailored to my specific points below, so that I have context.

Okay, after reading up on MVP, I have decided to implement the Passive View.  Effectively I will have a bunch of controls on a Winform that will be handled by a Presenter and then the tasks delegated to the Model(s).  My specific points are below:

1.  When the winform loads, it has to obtain a treeview.  Am I correct in thinking that the view should therefore call a method such as: presenter.gettree(), this in turn will delegate to the model, which will obtain the data for the treeview, create it and configure it, return it to the presenter, which in turn will pass to the view which will then simply assign it to, say, a panel?

2.  Would this be the same for any data control on the Winform, as I also have a datagridview?

3.  My App, has a number of model classes with the same assembly.  It also supports a plugin architecture with plugins that need to be loaded at startup.  Would the view simply call a presenter method, which in turn would call a method that loads the plugins and display the information in the view?  Which tier would then control the plugin references.  Would the view hold references to them or the presenter?

4.  Am I correct in thinking that the view should handle every single thing about presentation, from treeview node colour, to datagrid size, etc?

I think that they are my main concerns and if I understand how the flow should be for these I think I will be okay.

Model-View-Presenter in WinForms

Let&#39;s say we have a structure like so:

    Try
      &#39; Outer try code, that can fail with more generic conditions, 
      &#39; that I know less about and might not be able to handle

      Try
        &#39; Inner try code, that can fail with more specific conditions,
        &#39; that I probably know more about, and are likely to handle appropriately
      Catch innerEx as Exception
        &#39; Handle the inner exception
      End Try

    Catch outerEx as Exception
      &#39; Handle outer exception
    End Try

I have seen some opinions that nesting `Try` blocks like this is discouraged, but I could not find any specific reasons.

Is this bad code? If so, why?




Are nested Try/Catch blocks a bad idea?

Any call in my unit tests to either `Debug.Write(line)` or `Console.Write(Line)` simply gets skipped over while debugging and the output is never printed. Calls to these functions from within classes I&#39;m using work fine. 

I understand that unit testing is meant to be automated, but I still would like to be able to output messages from a unit test.


How can I write output from a unit test?

I am trying to debug some inconsistent behaviour I am seeing in an application that gets its primary data from the Internet.  I don&#39;t see the issues in the simulator, just on the device, so I&#39;d like to reproduce the network and connectivity environment in the simulator.

Is there a way of disabling the network in the simulator?

(I am connecting to the Mac remotely to code, and there isn&#39;t any other choice right now, so disabling the OS network isn&#39;t an option).



Is it possible to disable the network in iOS Simulator?

I am working on an iPhone app. I am a full-time Java developer and I am used to using Eclipse where I can put a breakpoint in and stop the process. Then, I can type in any expression that I want and Eclipse will evaluate it using the values from that point in the process.

Is there a way to do that in Xcode? I want to be able to stop at a breakpoint and then enter some code to evaluate it. The gdb console will let me do `po` ([print-object][1]), but it is really limited. Any help?


  [1]: http://support.apple.com/kb/ta45906

Xcode evaluating expressions while debugging

When I&#39;m stopped at a break point in Xcode, I can see the value of NSString variables. How can I change them? I can change int or double variables, but not NSString.

How to change NSString value while debugging in Xcode?

Is there an option to take the stack pointer - or arrow in the debugger, backward and change the current execution line, as in visual studio.  
Today I am using a &quot;workaround&quot; of modifying the source file. this will take me to the beginning of a method, but sometimes it is just not good enough.

is it possible to &quot;go back&quot; in java eclipse debugger like dragging the arrow in VS

I&#39;m running msbuild from the command line with the following:

    msbuild mysolution.sln -p:outputdir=c:\mydir

When I run this, the outputdir is being ignored and the default specified in the csproj file is being used. 

The MSDN doc for this tool says that I should be able to override the build directory using this parameter. What am I doing wrong?

msbuild -p:outputdir=c:\mydir being ignored

Prior to NuGet, it was common accepted &#39;best practice&#39; to check-in all external DLLs used on a project. Typically in a `Libs` or `3rdParty` directory.


When working with NuGet, am I supposed to check-in the `packages` directory, or is there a way for MSBuild to auto download the needed packages from the nuget feed?



Checking in packages from NuGet into version control?

Trying to copy a whole folder, but when I do this:

    &lt;Copy SourceFiles=&quot;$(TargetDir)\*.*&quot; DestinationFolder=&quot;$(BuildOutput)\SomeDir&quot; /&gt;

the copy attempts to do this: **copy c:\source\\*.* c:\destination\SomeDir\\*.***  and fails with `illegal characters` error





MSBuild: copy whole folder

I have a solution with lots of solution folders with lots of c# projects inside them.

**How do I build/rebuild only one of those projects from command line?**

I guess there&#39;s some way to do it using `msbuild` but I don&#39;t know anything about msbuild.

Thanks!


Build only one project in a solution from command line

I&#39;m trying to deploy a web application using MSDeploy, on Team Build in TFS. There are several questions that address the properties that have to be passed in MSBuild in order to call MSDeploy, but I haven&#39;t found sufficient documentation for what properties are available. Does someone have a list of available properties?

Here are some questions that I&#39;ve found, but I haven&#39;t been able to find a definitive list of the properties:

  * https://stackoverflow.com/questions/5488164/breaking-msbuild-package-deploy-into-seperate-msbuild-and-msdeploy-commands
  * https://stackoverflow.com/questions/2636153/how-can-i-get-tfs2010-to-run-msdeploy-for-me-through-msbuild

Content Type	Original Author	Original Content on Stackoverflow
Question	Simon	View Question on Stackoverflow
Solution 1 - .Net	Aaron Carlson	View Answer on Stackoverflow

How to output a variable value to the log from MSBuild

.Net Problem Overview

.Net Solutions

Solution 1 - .Net

C++ string to double conversion

What does Python optimization (-O or PYTHONOPTIMIZE) do?

Attributions