You would do something like this to get the path &quot;Data\ich_will.mp3&quot; inside your application environments folder.

    string fileName = &quot;ich_will.mp3&quot;;
    string path = Path.Combine(Environment.CurrentDirectory, @&quot;Data\&quot;, fileName);

In my case it would return the following:

    C:\MyProjects\Music\MusicApp\bin\Debug\Data\ich_will.mp3

I use `Path.Combine` and `Environment.CurrentDirectory` in my example. These are very useful and allows you to build a path based on the current location of your application. `Path.Combine` combines two or more strings to create a location, and `Environment.CurrentDirectory` provides you with the working directory of your application.

The working directory is not necessarily the same path as where your `executable` is located, but in most cases it should be, unless specified otherwise.

    Path.Combine(AppDomain.CurrentDomain.BaseDirectory, @&quot;JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3&quot;)

base directory + your filename
   

I was facing a similar issue, I had a file on my project, and wanted to test a class which had to deal with loading files from the FS and process them some way. What I did was:

- added the file `test.txt` to my test project
- on the solution explorer hit `alt-enter` (file properties)
- there I set `BuildAction` to `Content` and `Copy to Output Directory` to `Copy if newer`, I guess `Copy always` would have done it as well

then on my tests I just had to `Path.Combine(Environment.CurrentDirectory, &quot;test.txt&quot;)` and that&#39;s it. Whenever the project is compiled it will copy the file (and all it&#39;s parent path, in case it was in, say, a folder) to the `bin\Debug` (or whatever configuration you are using) folder.

Hopes this helps someone

I am developing an app with flask and SQL Alchemy.
I need to display the queries executed to generate a page alongside the time each query took for debugging

What&#39;s the best way to do it?

Flask SQLAlchemy display queries for debug

Recently I wrote a project with maven, but I have a question about the version in maven pom.xml.

If I write such a dependency
&lt;!-- language-all: lang-xml --&gt;

    &lt;dependency&gt;
        &lt;groupId&gt;foo&lt;/groupId&gt;
        &lt;artifactId&gt;bar&lt;/artifactId&gt;
         &lt;!--No version here--&gt;
    &lt;/dependency&gt;

what will the version be

1. in a simple project, no subproject

2. as a dependency in another project and that project use foo-bar-1.0.0

What will the version be when I don&#39;t specify it in the Maven&#39;s pom.xml?

I am working on a media player in C# but when I want to make my test I have a problem.

I have to create a new object song with the following path:

    @&quot;C:\Users\Jesus Antonio\Desktop\JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3&quot;

It works but when I change the computer I have to rewrite the entire path, 
My project is called JukeboxV2.0

In java I remember you can just write the path for example

    @&quot;JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3&quot;

This will save a lot of time because I can take my project to different computers and it works, but here I don&#39;t known how to do that, anyone know?

File path for project files?

I am working on a media player in C# but when I want to make my test I have a problem.
I have to create a new object song with the following path:
<pre><code class="hljs language-python">@"C:\Users\Jesus Antonio\Desktop\JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3"
</code></pre>
It works but when I change the computer I have to rewrite the entire path,
My project is called JukeboxV2.0
In java I remember you can just write the path for example
<pre><code class="hljs language-python">@"JukeboxV2.0\JukeboxV2.0\Datos\ich will.mp3"
</code></pre>
This will save a lot of time because I can take my project to different computers and it works, but here I don't known how to do that, anyone know?

I&#39;m using an API client that is completely asynchrounous, that is, each operation either returns `Task` or `Task&lt;T&gt;`, e.g:

    static async Task DoSomething(int siteId, int postId, IBlogClient client)
    {
        await client.DeletePost(siteId, postId); // call API client
        Console.WriteLine(&quot;Deleted post {0}.&quot;, siteId);
    }

Using the C# 5 async/await operators, what is the correct/most efficient way to start multiple tasks and wait for them all to complete:

    int[] ids = new[] { 1, 2, 3, 4, 5 };
    Parallel.ForEach(ids, i =&gt; DoSomething(1, i, blogClient).Wait());

or:

    int[] ids = new[] { 1, 2, 3, 4, 5 };
    Task.WaitAll(ids.Select(i =&gt; DoSomething(1, i, blogClient)).ToArray());

Since the API client is using HttpClient internally, I would expect this to issue 5 HTTP requests immediately, writing to the console as each one completes.

Using async/await for multiple tasks

I&#39;ve been trying for a while to get something I thought would be simple working with .NET 4.5

I want to fire off two long running tasks at same time and collect the  
    results in in the best C# 4.5 (RTM) way

The following works but I don&#39;t like it because:

  * I want `Sleep` to be an async method so it can `await` other methods
  * It just looks clumsy with `Task.Run()`
  * I don&#39;t think this is even using any new language features at all!

**Working code:**
       
    public static void Go()
    {
        Console.WriteLine(&quot;Starting&quot;);

        var task1 = Task.Run(() =&gt; Sleep(5000));    
        var task2 = Task.Run(() =&gt; Sleep(3000));

        int totalSlept = task1.Result + task2.Result;

        Console.WriteLine(&quot;Slept for a total of &quot; + totalSlept + &quot; ms&quot;);
    }

    private static int Sleep(int ms)
    {
        Console.WriteLine(&quot;Sleeping for &quot; + ms);
        Thread.Sleep(ms);
        Console.WriteLine(&quot;Sleeping for &quot; + ms + &quot; FINISHED&quot;);
        return ms;
    }

**Non working code:**

*Update: This actually works and is the correct way to do it, the only problem is the `Thread.Sleep`*

This code doesn&#39;t work because the call to `Sleep(5000)` immediately starts the task running so `Sleep(1000)` doesn&#39;t run until it has completed. This is true even though `Sleep` is `async` and I&#39;m not using `await` or calling `.Result` too soon.

I thought maybe there is a way to get a non-running `Task&lt;T&gt;` by calling an `async` method so I could then call `Start()` on the two tasks, but I can&#39;t figure out how to get a `Task&lt;T&gt;` from calling an async method.

    public static void Go()
    {
        Console.WriteLine(&quot;Starting&quot;);

        var task1 = Sleep(5000);    // blocks
        var task2 = Sleep(1000);

        int totalSlept = task1.Result + task2.Result;

        Console.WriteLine(&quot;Slept for &quot; + totalSlept + &quot; ms&quot;);
    }

    private static async Task&lt;int&gt; Sleep(int ms)
    {
        Console.WriteLine(&quot;Sleeping for &quot; + ms);
        Thread.Sleep(ms);
        return ms;
    }

Run two async tasks in parallel and collect results in .NET 4.5

I am trying to create a new ZIP package from code with one entry and save the ZIP package to a file. I am trying to achive this with the **System.IO.Compression.ZipArchive** class. I am creating the ZIP package with the following code:

    using (MemoryStream zipStream = new MemoryStream())
    {
        using (ZipArchive zip = new ZipArchive(zipStream, ZipArchiveMode.Create))
        {
            var entry = zip.CreateEntry(&quot;test.txt&quot;);
            using (StreamWriter sw = new StreamWriter(entry.Open()))
            {
                sw.WriteLine(
                    &quot;Etiam eros nunc, hendrerit nec malesuada vitae, pretium at ligula.&quot;);
            }
Then I save the ZIP to a file either in WinRT:

            var file = await Windows.Storage.ApplicationData.Current.LocalFolder.CreateFileAsync(&quot;test.zip&quot;, CreationCollisionOption.ReplaceExisting);
            zipStream.Position = 0;
            using (Stream s = await file.OpenStreamForWriteAsync())
            {
                zipStream.CopyTo(s);
            }
Or in normal .NET 4.5:

            using (FileStream fs = new FileStream(@&quot;C:\Temp\test.zip&quot;, FileMode.Create))
            {
                zipStream.Position = 0;
                zipStream.CopyTo(fs);
            }
However, I can&#39;t open the produced files neither in Windows Explorer, WinRAR, etc. (I checked that the size of the produced file matches the Length of the zipStream, so the stream itself was saved to the file correctly.)  
Am I doing something wrong or is there a problem with the ZipArchive class?


ZipArchive creates invalid ZIP file

I tried to restore a database using the following query:

&lt;!-- language: lang-sql --&gt;

    ALTER DATABASE [DatabaseName] SET Single_User WITH Rollback Immediate GO
    RESTORE DATABASE DatabaseName FROM DISK = &#39;C:\DBName-Full Database Backup&#39;
    ALTER DATABASE [DatabaseName] SET Multi_User GO

but instead of restoring the database, I am getting this error:

&gt; Msg 3159, Level 16, State 1, Line 2
&gt;
&gt; The tail of the log for the
&gt; database &quot;DatabaseName&quot; has not been backed up. Use `BACKUP LOG WITH NORECOVERY` to backup the log if it contains work you do not want to
&gt; lose. Use the `WITH REPLACE` or `WITH STOPAT` clause of the `RESTORE`
&gt; statement to just overwrite the contents of the log. Msg 3013, Level
&gt; 16, State 1, Line 2 `RESTORE DATABASE` is terminating abnormally.

The tail of the log for the database &quot;DBName&quot; has not been backed up

I am trying to use the web api&#39;s `HttpClient` to do a post to an endpoint that requires login in the form of an HTTP cookie that identifies an account (this is only something that is `#ifdef`&#39;ed out of the release version). 

How do I add a cookie to the `HttpRequestMessage`?

How do I set a cookie on HttpClient&#39;s HttpRequestMessage

In C# is it possible to get a currency symbol, like &#39;&#163;&#39;, from the 3 character currency code, in this case &#39;GBP&#39;?

Is this possible either in SQL Server or in C#?


3 Digit currency code to currency symbol

I have a question concerning parallel for loops. I have the following code:

		public static void MultiplicateArray(double[] array, double factor)
		{
			for (int i = 0; i &lt; array.Length; i++)
			{
				array[i] = array[i] * factor;
			}
		}

		public static void MultiplicateArray(double[] arrayToChange, double[] multiplication)
		{
			for (int i = 0; i &lt; arrayToChange.Length; i++)
			{
				arrayToChange[i] = arrayToChange[i] * multiplication[i];
			}
		}

		public static void MultiplicateArray(double[] arrayToChange, double[,] multiArray, int dimension)
		{
			for (int i = 0; i &lt; arrayToChange.Length; i++)
			{
				arrayToChange[i] = arrayToChange[i] * multiArray[i, dimension];
			}
		}

Now I try to add parallel function:

		public static void MultiplicateArray(double[] array, double factor)
		{
			Parallel.For(0, array.Length, i =&gt;
				{
					array[i] = array[i] * factor;
				});
		}

		public static void MultiplicateArray(double[] arrayToChange, double[] multiplication)
		{
			Parallel.For(0, arrayToChange.Length, i =&gt;
			{
				arrayToChange[i] = arrayToChange[i] * multiplication[i];
			});
		}

		public static void MultiplicateArray(double[] arrayToChange, double[,] multiArray, int dimension)
		{
			Parallel.For(0, arrayToChange.Length, i =&gt;
			{
				arrayToChange[i] = arrayToChange[i] * multiArray[i, dimension];
			});
		}


The issue is, that I want to save time, not to waste it. With the standard for loop it computes about 2 minutes, but with the parallel for loop it takes 3 min. Why?

Save time with parallel FOR loop

While debugging my C# application I have noticed a large amount occurrences of the following sentence:

&gt; The thread -- has exited with code 0 (0x0).

The application continues to work and no exception is catched/unhanded.

The application is running on Windows 7 64bit and debugged with x86 platform.

The thread has exited with code 0 (0x0) with no unhandled exception

I need a valid method to check if a `String` represents a path for file or a directory. What are valid directory names in Android? As it comes out, folder names can contain `&#39;.&#39;` chars, so how does system understand whether there&#39;s a file or a folder?

Check if a path represents a file or a folder

I am trying to locate the path of the current running/debugged project programmatically in Java, I looked in Google and what I found was `System.getProperty(&quot;user.id&quot;)`, which didn&#39;t get me the project&#39;s path.

I know the command `Environment.currentDirectory` in C# gives the path of the current running/debugged project,so I am sure there must be a similar way in Java, too.

So I am asking if anyone could tell me or give me a code to how locate the path of the currently running/debugged project programmatically?

**edit**:
i am writing plugin which loads with eclipse start.
the plugin adds a button to the workbench of eclipse, with in the code of the plugin
when i click the button i search for the current directory path.

my purpose is that when for example i debug a project and then click the button, a window will pop up presenting the debugged project&#39;s path, thanks

How to locate the Path of the current project directory in Java (IDE)?

Is there an existing function to concatenate paths?

I know it is not that difficult to implement, but still... besides taking care of trailing `/` (or `\`) I would need to take care of proper OS path format detection (i.e. whether we write `C:\dir\file` or `/dir/file`). 

As I said, I believe I know how to implement it; the question is: should I do it? Does the functionality already exist in existing R package?

Function to concatenate paths?

I&#39;d like to get the full file path, from a URI. The URI isn&#39;t a Image, but it&#39;s a music file, but if i do it like the MediaStore Solution, it won&#39;t work if the app user selects eg Astro as browser, instead of Music Player. How do I solve this?


How to get the Full file path from URI

How can I convert a **Windows** dir path (say `c:/libs/Qt-static`) to the correct **POSIX** dir path (`/c/libs/Qt-static`) by means of standard **msys** features? And vice versa?

Content Type	Original Author	Original Content on Stackoverflow
Question	OscarLeif	View Question on Stackoverflow
Solution 1 - C#	eandersson	View Answer on Stackoverflow
Solution 2 - C#	jack.li	View Answer on Stackoverflow
Solution 3 - C#	Luiso	View Answer on Stackoverflow

File path for project files?

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Solution 3 - C#

What will the version be when I don't specify it in the Maven's pom.xml?

Flask SQLAlchemy display queries for debug

Attributions