I am assuming you tried SharpDevelop 5 since the conversion feature was missing in that version.

The [VB to C# code converter](https://github.com/icsharpcode/CodeConverter) from the SharpDevelop team is now a standalone extension to Visual Studio. Once installed, you can convert an entire VB.NET project to C# by opening the solution, right clicking the solution node in the Solution Explorer and selecting **Convert to C#**.

Sorry but I&#39;ve not come across any tools that will convert the entire project. I&#39;ve just created a interim c# project and converted small parts at a section at time, in the past.  The conversion is not a straight one-2-one code map for a variety of reasons due to the differences in the languages. Small steps and some good unit testing help speed things up. Alternatively if your code uses code generators tools supplied by CodesmithTools, they often have compiler switches that will help change .net languages.  This will definitely help in my humble opinion.

I have multiple text file with about 100,000 lines and I want to split them into smaller text files of 5000 lines each. 


I used:

    split -l 5000 filename.txt

That creates files:

    xaa
    xab
    aac
    xad
    xbe
    aaf


files with no extensions. I just want to call them something like:

    file01.txt
    file02.txt
    file03.txt
    file04.txt


or if that is not possible, i just want them to have the &quot;.txt&quot; extension. 

Split text file into smaller multiple text file using command line

I would like the element-wise logical OR operator. I know &quot;or&quot; itself is not what I am looking for.

I am aware that AND corresponds to `&amp;` and NOT, `~`. But what about OR? 

  [1]: https://stackoverflow.com/questions/21415661/logic-operator-for-boolean-indexing-in-pandas &quot;here&quot;
  [2]: https://stackoverflow.com/questions/15998188/how-can-i-obtain-the-element-wise-logical-not-of-a-pandas-series

Element-wise logical OR in Pandas

I have a project written in VB, and I need to convert the whole project to C# project. I don&#39;t want to do it file by file, I found some online converters, but they convert only lines of codes, not the whole project. I found on researches, and here was written that 
I saw [this question][1] , there was written that 

&quot;The best part about Sharpdevelop is it converts the whole project (source files) from VB and C# and the other way&quot; 

And I also researched on Google, that if you Right Click on the project, I found [here][2] , that 
&quot;Right click on the project in the Projects window and select Convert - From VB.NET to C#&quot;. But when I right click on The Project in the Projects window, I can&#39;d find that &quot;Convert&quot;. Is there any tool I have to install for SharpDevelop and then I will be able to convert my project ? 
Thanks

  [1]: https://stackoverflow.com/questions/4559950/how-to-convert-full-c-sharp-project-to-vb-net
  [2]: http://community.sharpdevelop.net/forums/t/12434.aspx

How Convert VB Project to C# Project

I have a project written in VB, and I need to convert the whole project to C# project. I don't want to do it file by file, I found some online converters, but they convert only lines of codes, not the whole project. I found on researches, and here was written that
I saw <a href="https://stackoverflow.com/questions/4559950/how-to-convert-full-c-sharp-project-to-vb-net" target="_blank" rel="noopener noreferrer">this question</a> , there was written that
"The best part about Sharpdevelop is it converts the whole project (source files) from VB and C# and the other way"
And I also researched on Google, that if you Right Click on the project, I found <a href="http://community.sharpdevelop.net/forums/t/12434.aspx" target="_blank" rel="noopener noreferrer">here</a> , that
"Right click on the project in the Projects window and select Convert - From VB.NET to C#". But when I right click on The Project in the Projects window, I can'd find that "Convert". Is there any tool I have to install for SharpDevelop and then I will be able to convert my project ?
Thanks

While reading and exploring the dynamic keyword I found following line on [MSDN] (in *[Using Type dynamic (C# Programming Guide)][1]*):

&gt; The type is a static type, but an object of type dynamic bypasses static type checking. In most cases, it functions like it has type object.

What is the meaning of static in above line and how does it bypass static type checking?

  [1]: http://msdn.microsoft.com/en-IN/library/dd264736.aspx



Why is C# dynamic type static?

I have written the code below to send headers, post parameters. The problem is that I am using SendAsync since my request can be GET or POST. How can I add POST Body to this peice of code so that if there is any post body data it gets added in the request that I make and if its simple GET or POST without body it send the request that way. Please update the code below:

    HttpClient client = new HttpClient();

	// Add a new Request Message
	HttpRequestMessage requestMessage = new HttpRequestMessage(RequestHTTPMethod, ToString());

	// Add our custom headers
	if (RequestHeader != null)
	{
		foreach (var item in RequestHeader)
		{

			requestMessage.Headers.Add(item.Key, item.Value);

		}
	}

	// Add request body


	// Send the request to the server
	HttpResponseMessage response = await client.SendAsync(requestMessage);

	// Get the response
	responseString = await response.Content.ReadAsStringAsync();

How to send a Post body in the HttpClient request in Windows Phone 8?

I want to convert the below HTML to PDF using iTextSharp but don&#39;t know where to start:

&lt;!-- language: lang-html --&gt;

    &lt;style&gt;
    .headline{font-size:200%}
    &lt;/style&gt;
    &lt;p&gt;
      This &lt;em&gt;is &lt;/em&gt;
      &lt;span class=&quot;headline&quot; style=&quot;text-decoration: underline;&quot;&gt;some&lt;/span&gt;
      &lt;strong&gt;sample&lt;em&gt; text&lt;/em&gt;&lt;/strong&gt;
      &lt;span style=&quot;color: red;&quot;&gt;!!!&lt;/span&gt;
    &lt;/p&gt;

How to convert HTML to PDF using iTextSharp

I&#39;ve created a MVC 4 Web API Application inside my solution, but I&#39;m getting 2 errors right now and I need some help. 

&gt; &#39;System.Web.Http.HttpConfiguration&#39; does not contain a definition for
&gt; &#39;MapHttpAttributeRoutes&#39; and no extension method
&gt; &#39;MapHttpAttributeRoutes&#39; accepting a first argument of type
&gt; &#39;System.Web.Http.HttpConfiguration&#39; could be found (are you missing a
&gt; using directive or an assembly reference?)

This error occurs on the following code 

**File: WebApiConfig.cs (at App_Start folder)**

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web.Http;
    using System.Web;

        public static class WebApiConfig
        {
            public static void Register(HttpConfiguration config)
            {
                // Web API configuration and services
    
                // Web API routes
                config.MapHttpAttributeRoutes();
    
                config.Routes.MapHttpRoute(
                    name: &quot;DefaultApi&quot;,
                    routeTemplate: &quot;api/{controller}/{id}&quot;,
                    defaults: new { id = RouteParameter.Optional }
                );
            }
        }

Another one, is in the Global.asax

&gt; &#39;System.Web.Http.GlobalConfiguration&#39; does not contain a definition
&gt; for &#39;Configure&#39;


**File: Global.asax.cs**

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.Http;
    using System.Web.Http.WebHost;
    using System.Web.Mvc;
    using System.Web.Optimization;
    using System.Web.Routing;

    public class WebApiApplication : System.Web.HttpApplication
    {
        protected void Application_Start()
        {
            AreaRegistration.RegisterAllAreas();
            GlobalConfiguration.Configure(WebApiConfig.Register);
            FilterConfig.RegisterGlobalFilters(GlobalFilters.Filters);
            RouteConfig.RegisterRoutes(RouteTable.Routes);
            BundleConfig.RegisterBundles(BundleTable.Bundles);
        }
    }

![enter image description here][1]


**UPDATE**

After installing via Nuget the WebAPI WebHost (suggestion of @sa_ddam213) it resolves some problems, but now a got this error when run my application

&gt; Could not load file or assembly &#39;System.Net.Http&#39; or one of its
&gt; dependencies. The located assembly&#39;s manifest definition does not
&gt; match the assembly reference

**Web.config file has the assembly**

		&lt;dependentAssembly&gt;
			&lt;assemblyIdentity name=&quot;System.Web.Http&quot; publicKeyToken=&quot;31BF3856AD364E35&quot; culture=&quot;neutral&quot;/&gt;
				&lt;bindingRedirect oldVersion=&quot;0.0.0.0-5.2.0.0&quot; newVersion=&quot;5.2.0.0&quot;/&gt;
		&lt;/dependentAssembly&gt;


  [1]: http://i.stack.imgur.com/cmksn.png

WebAPI found reference error when I have the assembly

The draft spec for [Pattern Matching in C#](https://onedrive.live.com/redir?resid=4558A04E77D0CF5%215396) contains the following code example:

    Type? v = x?.y?.z; 
    if (v.HasValue) {
        var value = v.GetValueOrDefault();     
        // code using value 
    } 

I understand that `Type?` indicates that `Type` is nullable, but assuming `x`, `y`, and `z` are locals, what does `x?.y?.z` mean?

What does x?.y?.z mean?

I have a simple solution in visual studio 2013 that is composed by one web project, one library project and one unit test project. When I open the solution and try to run the unit tests they are not discover by visual studio. To run the tests I try to go to the menu and choose Test -&gt; Run -&gt; Run all tests or by opening the test explorer window. By those to methods visual studio doesn’t discover any tests in the solution.

Creating first a simple unit tests project and try to run the test, visual studio know discover the test and I can run it. Then, if I open my previous solution visual studio now discovers all the tests. I try to save my solution but closing it and reopening, without creating a unit test project first, the visual studio doesn’t find the tests again. This is a very strange behave that I don’t know why this is happening. 

I used to working alone in this project that was using the source control git integrated with the visual studio team foundation. The problem of visual studio not discover the unit tests start when a new element came to the project and when I need to recreate the solution through the source control online. Before this, all tests always been discovered by visual studio.

For creation the unit tests I use the dll Microsoft.VisualStudio.QualityTools.UnitTestFramework. My version of visual studio is: Microsoft Visual Studio Express 2013 for Web Version 12.0.30723.00 Update 3. My version of .net framework is 4.5.50938.

All of my tests are like this: 

    [TestClass] 
    public class Service1Test 
    { 
        [TestMethod] 
        public void Test1() 
        {
            Assert.IsTrue(True); 
        } 
    }

Visual Studio 2013 doesn&#39;t discover unit tests

I am using a console app as a proof of concept and new need to get an async return value.  

I figured out that I need to use `Task.WaitAll()` in my main method to avoid needing an async &quot;main()&quot; method, which is illegal.

I&#39;m now stuck trying to figure out an overload that allows me to use generics or just returns an object that I can cast, but while in Main().

How do I get a return value from Task.WaitAll() in a console app?

The `Main` method is the entry point of a C# console application. Thus, for example, if I have to start some threads or services, I will do it within the `Main` method.

I do not see the `Main` method inside a WPF project, so what is the entry point of a WPF application? If I have to start some threads or services, where should write the code for starting them?

**UPDATE:** [this answer][1] summarizes the available solutions, but what are the pros and cons of each solution?


  [1]: https://stackoverflow.com/a/8777142/364056

What is the entry point of a WPF application?

I have the following code:

    using (Mutex mut = new Mutex(false, MUTEX_NAME))
    {
        if (mut.WaitOne(new TimeSpan(0, 0, 30)))
        {
           // Some code that deals with a specific TCP port
           // Don&#39;t want this to run at the same time in another process
        }
    }

I&#39;ve set a breakpoint within the `if` block, and ran the same code within another instance of Visual Studio.  As expected, the `.WaitOne` call blocks.  However, to my surprise, as soon as I *continue* in the first instance and the `using` block terminates, I get an exception in the second process about an abandoned Mutex.

The fix is to call `ReleaseMutex`:

    using (Mutex mut = new Mutex(false, MUTEX_NAME))
    {
        if (mut.WaitOne(new TimeSpan(0, 0, 30)))
        {
           // Some code that deals with a specific TCP port
           // Don&#39;t want this to run twice in multiple processes
        }
        
        mut.ReleaseMutex();
    }

Now, things work as expected.

**My Question:** Usually the point of an `IDisposable` is it *cleans up* whatever state you put things in.  I could see perhaps having multiple *waits* and *releases* within a `using` block, but when the handle to the Mutex is disposed, shouldn&#39;t it get released automatically?  In other words, why do I need to call `ReleaseMutex` if I&#39;m in a `using` block?

I&#39;m also now concerned that if the code within the `if` block crashes, I&#39;ll have abandoned mutexes lying around.

Is there any benefit to putting `Mutex` in a `using` block?  Or, should I just *new up* a `Mutex` instance, wrap it in a try/catch, and call `ReleaseMutex()` within the *finally* block (Basically implementing exactly what I *thought* `Dispose()` would do)

Why doesn&#39;t Mutex get released when disposed?

I&#39;ve already gone through [question][1] 

I understand that, it is necessary to implement `==`, `!=` and `Equals()`.

	public class BOX
	{
		double height, length, breadth;

		// this is first one &#39;==&#39;
		public static bool operator== (BOX obj1, BOX obj2)
		{
			return (obj1.length == obj2.length 
						&amp;&amp; obj1.breadth == obj2.breadth 
						&amp;&amp; obj1.height == obj2.height);
		}

		// this is second one &#39;!=&#39;
		public static bool operator!= (BOX obj1, BOX obj2)
		{
			return !(obj1.length == obj2.length 
						&amp;&amp; obj1.breadth == obj2.breadth 
						&amp;&amp; obj1.height == obj2.height);
		}

		// this is third one &#39;Equals&#39;
		public override bool Equals(BOX obj)
		{
			return (length == obj.length 
						&amp;&amp; breadth == obj.breadth 
						&amp;&amp; height == obj.height);
		}
	}

I assume, I&#39;ve written code properly to override `==`,`!=`,`Equals` operators. Though, I get compilation errors as follows.

	&#39;myNameSpace.BOX.Equals(myNameSpace.BOX)&#39; is marked as an override 
	but no suitable method found to override.

So, question is - How to override above operators &amp; get rid of this error?

  [1]: https://stackoverflow.com/questions/10790370/whats-wrong-with-defining-operator-but-not-defining-equals-or-gethashcode

Operator overloading ==, !=, Equals

I used constants like `vbLf` , `vbCrLf` &amp; `vbCr` in a *MsgBox*; it produces same output in a MsgBox (Text &quot;Hai&quot; appears in a first paragraph and a word &quot;Welcome&quot; appears in a next Paragraph )


    MsgBox(&quot;Hai&quot; &amp; vbLf &amp; &quot;Welcome&quot;)
    MsgBox (&quot;Hai&quot; &amp; vbCrLf &amp; &quot;Welcome&quot;)
    MsgBox(&quot;Hai&quot; &amp; vbCr &amp; &quot;Welcome&quot;)

I know `vbLf` , `vbCrLf` &amp; `vbCr` are used for print and display functions.

I want to know the Difference between the `vbLf` , `vbCrLf` &amp; `vbCr` constants.

Differences Between vbLf, vbCrLf &amp; vbCr Constants

[The new Recaptcha 2][1] looks promising, but i didn&#39;t find a way to validate it in ASP.NET&#39;s server side,

`if(Page.IsValid)` in [This answer][2], is valid for the old Recaptcha, but not the new one,

How to validate the new reCAPTCHA in server side?



  [1]: http://googleonlinesecurity.blogspot.com/2014/12/are-you-robot-introducing-no-captcha.html
  [2]: https://stackoverflow.com/questions/5817690/validating-recaptcha-on-server-side

Validating Recaptcha 2 (No CAPTCHA reCAPTCHA) in ASP.NET&#39;s server side

What is the importance of this compiler? Is it a must have or could do without? What is the purpose of having another compiler anyway, or is it just a futuristic project? A brief overview would be appreciated.

What is the purpose of Microsoft.Net.Compilers?

I have an existing Web API 2 service and need to modify one of the methods to take a custom object as another parameter, currently the method has one parameter which is a simple string coming from the URL.  After adding the custom object as a parameter I am now getting a 415 unsupported media type error when calling the service from a .NET windows app.  Interestingly, I can successfully call this method using javascript and the jquery ajax method.

The Web API 2 service method looks like this:

    &lt;HttpPost&gt;
    &lt;HttpGet&gt;
    &lt;Route(&quot;{view}&quot;)&gt;
    Public Function GetResultsWithView(view As String, pPaging As Paging) As HttpResponseMessage
       Dim resp As New HttpResponseMessage
       Dim lstrFetchXml As String = String.Empty
       Dim lstrResults As String = String.Empty
    
       Try
          &#39;... do some work here to generate xml string for the response
          &#39;// write xml results to response
          resp.Content = New StringContent(lstrResults)
          resp.Content.Headers.ContentType.MediaType = &quot;text/xml&quot;
          resp.Headers.Add(&quot;Status-Message&quot;, &quot;Query executed successfully&quot;)
          resp.StatusCode = HttpStatusCode.OK
       Catch ex As Exception
          resp.StatusCode = HttpStatusCode.InternalServerError
          resp.Headers.Add(&quot;Status-Message&quot;, String.Format(&quot;Error while retrieving results from view {0}: {1}&quot;, view, ex.Message))
       End Try
       Return resp
    End Function

The method allows both `POST` and `GET` because the `Paging` object is optional.  If I call this method with a `GET` request it works.

And the simple .NET client code calling the service looks like this:

    Dim uri As String = BASE_URI + &quot;fetch/someview&quot;
    Dim resp As HttpWebResponse
    Dim sr As StreamReader
    Dim lstrResponse As String
    Dim reqStream As Stream
    Dim bytData As Byte()
    Dim req As HttpWebRequest = WebRequest.Create(uri)
    Dim lstrPagingJSON As String
    Dim lPaging As New Paging
    Try
       lPaging.Page = 1
       lPaging.Count = 100
       lPaging.PagingCookie = &quot;&quot;
       req.Method = &quot;POST&quot;
       lstrPagingJSON = JsonSerializer(Of Paging)(lPaging)
       bytData = Encoding.UTF8.GetBytes(lstrPagingJSON)
       req.ContentLength = bytData.Length
       reqStream = req.GetRequestStream()
       reqStream.Write(bytData, 0, bytData.Length)
       reqStream.Close()
       req.ContentType = &quot;application/json&quot;
    
       resp = req.GetResponse()
    
       sr = New StreamReader(resp.GetResponseStream, Encoding.UTF8)
       lstrResponse = sr.ReadToEnd
       &#39;// do something with the response here
    Catch exweb As WebException
       txtOutput.AppendText(&quot;Error during request: &quot; + exweb.Message)
    Catch ex As Exception
       txtOutput.AppendText(String.Format(&quot;General error during request to {0}: {1}&quot;, uri, ex.Message))
    End Try

The .NET client is running on the 4.5 framework and the service is on 4.5.2 framework.  The error is thrown at the `resp = req.GetResponse()` line. Some things I tried already:

 - on the client, set the `req.Accept` value to &quot;application/xml&quot; or
   &quot;text/xml&quot;
 - in the service method, removed the line
   `resp.Content.Headers.ContentType.MediaType = &quot;text/xml&quot;
 - replace the XML response content with some static JSON, tried to rule out any problems with sending in JSON on the request and getting XML back on the response

So far I keep getting the same 415 error response no matter what I try.

I mentioned this works when called from javascript, here&#39;s my ajax call that is working:

    $.ajax({
       headers: {},
       url: &quot;api/fetch/someview&quot;,
       type: &quot;POST&quot;,
       data: &quot;{Count:100,Page:1,PagingCookie:\&quot;\&quot;}&quot;,
       contentType: &quot;application/json; charset=utf-8&quot;,
       dataType: &quot;xml&quot;,
       success: function (data) {
          alert(&quot;call succeeded&quot;);
       },
       failure: function (response) {
          alert(&quot;call failed&quot;);
       }
    });

On the service side, there is nothing fancy going on with the route config or anything else, it&#39;s pretty much all out-of-the-box Web API 2.  I know the routing is working, calls are being correctly routed to the method, they&#39;re not going somewhere else unexpectedly, so what am I missing in the .NET client?  Any help is much appreciated!

**--- UPDATE ---**&lt;br/&gt;
I tried to create a completely new Web API service to rule out any possible issues with the existing service, I created a controller with a single method that takes a custom object as the parameter.  I then tried calling that from the .NET client and got the same error.  I also tried using WebClient instead of HttpWebRequest, but still get the same error. This is also something that previously worked for me with Web API (prior to Web API 2).

**--- UPDATE ---**&lt;br/&gt;
I also tried creating a new web app using Web API 1, when I call that with a POST my complex object parameter is now coming in null.  I have another web service running Web API 1 and verified that I can still call that successfully with complex objects.  Whatever my problem is, it appears to be something with the JSON passing between the client and server.  I have checked the JSON I&#39;m sending it and its valid, the object definition is also an exact match between the client and server so the JSON should be able to be parsed by the server.

HTTP 415 unsupported media type error when calling Web API 2 endpoint

This program works just fine when compiled for .NET 4 but does not when compiled for .NET Core. I understand the error about encoding not supported but not how to fix it.

    Public Class Program
        Public Shared Function Main(ByVal args As String()) As Integer
            System.Text.Encoding.GetEncoding(1252)
        End Function
    End Class

.NET Core doesn&#39;t know about Windows 1252, how to fix?

How can I convert **.flac to .mp3** with ffmpeg, keeping all metadata (that is converting Vorbis comment in .flac files to ID3v2 metadata of .mp3)?

Convert .flac to .mp3 with ffmpeg, keeping all metadata

How do I convert a LocalDate to a `java.sql.Date`?

Attempt:

    Record r = new Record();
    LocalDate date = new Date(1967, 06, 22);
    r.setDateOfBirth(new Date(date));

This fails _(won&#39;t compile)_ and all I can find is Joda time stuff.

I&#39;m using Java 8

How to convert LocalDate to SQL Date Java?

What&#39;s the best way to convert between `LocalDate` from Java 8 and `XMLGregorianCalendar`?

Convert between LocalDate and XMLGregorianCalendar

I&#39;m creating a Color Picker tool and for the HSL slider, I need to be able to convert RGB to HSL. When I searched SO for a way to do the conversion, I found this question [HSL to RGB color conversion][1].

While it provides a function to do conversion from RGB to HSL, I see no explanation to what&#39;s really going on in the calculation. To understand it better, I&#39;ve read the [HSL and HSV][2] on Wikipedia.

Later, I&#39;ve rewritten the function from the &quot;HSL to RGB color conversion&quot; using the calculations from the &quot;HSL and HSV&quot; page.

I&#39;m stuck at the calculation of hue if the R is the max value. See the calculation from the &quot;HSL and HSV&quot; page:

[![enter image description here][3]][3]

This is from another [wiki page][4] that&#39;s in Dutch:

[![enter image description here][5]][5]

and this is from the [answers][6] to &quot;HSL to RGB color conversion&quot;:

    case r: h = (g - b) / d + (g &lt; b ? 6 : 0); break; // d = max-min = c

I&#39;ve tested all three with a few RGB values and they seem to produce similar (if not exact) results. What I&#39;m wondering is are they performing the same thing? Will get I different results for some specific RGB values? Which one should I be using?

	hue = (g - b) / c;                   // dutch wiki
	hue = ((g - b) / c) % 6;             // eng wiki
	hue = (g - b) / c + (g &lt; b ? 6 : 0); // SO answer

&lt;sub&gt;

	function rgb2hsl(r, g, b) {
		// see https://en.wikipedia.org/wiki/HSL_and_HSV#Formal_derivation
		// convert r,g,b [0,255] range to [0,1]
		r = r / 255,
		g = g / 255,
		b = b / 255;
		// get the min and max of r,g,b
		var max = Math.max(r, g, b);
		var min = Math.min(r, g, b);
		// lightness is the average of the largest and smallest color components
		var lum = (max + min) / 2;
		var hue;
		var sat;
		if (max == min) { // no saturation
			hue = 0;
			sat = 0;
		} else {
			var c = max - min; // chroma
			// saturation is simply the chroma scaled to fill
			// the interval [0, 1] for every combination of hue and lightness
			sat = c / (1 - Math.abs(2 * lum - 1));
			switch(max) {
				case r:
					// hue = (g - b) / c;
					// hue = ((g - b) / c) % 6;
					// hue = (g - b) / c + (g &lt; b ? 6 : 0);
					break;
				case g:
					hue = (b - r) / c + 2;
					break;
				case b:
					hue = (r - g) / c + 4;
					break;
			}
		}
		hue = Math.round(hue * 60); // &#176;
		sat = Math.round(sat * 100); // %
		lum = Math.round(lum * 100); // %
		return [hue, sat, lum];
	}


  [1]: https://stackoverflow.com/questions/2353211/hsl-to-rgb-color-conversion
  [2]: https://en.wikipedia.org/wiki/HSL_and_HSV
  [3]: http://i.stack.imgur.com/c6FL6.jpg
  [4]: https://nl.wikipedia.org/wiki/HSL_(kleurruimte)#Omzetting_van_RGB_naar_HSL
  [5]: http://i.stack.imgur.com/VJrSc.jpg
  [6]: https://stackoverflow.com/a/9493060/2202732

RGB to HSL conversion


I am getting the following stacktrace:
-

    org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [referencedata.ABDeadlineType] to type [referencedata.DeadlineType]
    	at org.springframework.core.convert.support.GenericConversionService.handleConverterNotFound(GenericConversionService.java:324)
    	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:206)
    	at org.springframework.core.convert.support.GenericConversionService.convert(GenericConversionService.java:187)
    	at org.springframework.data.repository.query.ResultProcessor$ProjectingConverter.convert(ResultProcessor.java:256)
    	at org.springframework.data.repository.query.ResultProcessor$ChainingConverter$1.convert(ResultProcessor.java:201)
    	at org.springframework.data.repository.query.ResultProcessor$ChainingConverter.convert(ResultProcessor.java:212)
    	at org.springframework.data.repository.query.ResultProcessor.processResult(ResultProcessor.java:149)
    	at org.springframework.data.jpa.repository.query.AbstractJpaQuery.doExecute(AbstractJpaQuery.java:121)
    	at org.springframework.data.jpa.repository.query.AbstractJpaQuery.execute(AbstractJpaQuery.java:106)
    	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:483)
    	at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:461)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:56)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
    	at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
    	at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57)
    	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
    	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213)
    	at com.sun.proxy.$Proxy143.findAllSummarizedBy(Unknown Source)
    	at 

My classes are the following
-


**DeadlineType** 

    @Data
    public class DeadlineType extends DefaultIdAndText {
        @Value(&quot;#{target.id}&quot;)
        String id;
    
        @Value(&quot;#{target.code}&quot;)
        String text;
    
        @Value(&quot;#{target.id}&quot;)
        public String getId() {
            return id;
        }
    
        @Value(&quot;#{target.code}&quot;)
        public String getText() {
            return text;
        }
    
    }

**ABDeadlineType**

    @Data
    @Entity
    @Table(name = &quot;deadline_type&quot;)
    @AllArgsConstructor
    @NoArgsConstructor
    public class ABDeadlineType {
    
        private @Id
        String id;
        private String code;
    }


**DefaultIdAndText** 

    @Data @AllArgsConstructor
    @NoArgsConstructor
    public class DefaultIdAndText implements IdAndText {
    
    	public DefaultIdAndText(IdAndText idAndText){
    		this.id = idAndText.getId();
    		this.text = idAndText.getText();
    	}
    
    	@NotEmpty String id;
    	String text;
    }


**DeadlineTypeRepository** 

    public interface DeadlineTypeRepository extends JpaRepository&lt;ABDeadlineType, Long&gt; {
        List&lt;DeadlineType&gt; findAllSummarizedBy();
    }


Update
-

Could it be an issue that the projection/mapping using `@Value(&quot;#{target.id}&quot;)` format, does not work correctly because these have been done on a class and not on an interface???

Content Type	Original Author	Original Content on Stackoverflow
Question	Romo Daneghyan	View Question on Stackoverflow
Solution 1 - C#	Matt Ward	View Answer on Stackoverflow
Solution 2 - C#	Jamie Clayton	View Answer on Stackoverflow

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