Check your build types of each project under project properties - I bet one or the other will be set to build against `.NET XX - Client Profile`.

With inconsistent versions, specifically with one being `Client Profile` and the other not, then it works at design time but fails at compile time. A real gotcha.

There is something funny going on in Visual Studio 2010 for me, which keeps setting projects seemingly randomly to `Client Profile`, sometimes when I create a project, and sometimes a few days later. Probably some keyboard shortcut I&#39;m accidentally hitting...

Make sure that both projects have same target framework version here:
**right click on project -&gt; properties -&gt; application (tab) -&gt; target framework**

Also, make sure that the project &quot;logger&quot; (which you want to include in the main project) has the output type &quot;Class Library&quot; in:
**right click on project -&gt; properties -&gt; application (tab) -&gt; output type**

Finally, **Rebuild** the solution.

*How do I call a function once the browser windows has FINISHED resizing?*

I&#39;m trying to do it like so, but am having problems. I&#39;m using the JQuery Resize event function:

    $(window).resize(function() {
      ... // how to call only once the browser has FINISHED resizing?
    });

However, this function is called *continuously* if the user is manually resizing the browser window. Which means, it might call this function dozens of times in short interval of time.

How can I call the resize function only *a single time* (once the browser window has finished resizing)?

**UPDATE**

Also without having to use a global variable.

JQuery: How to call RESIZE event only once it&#39;s FINISHED resizing?

I just can&#39;t seem to find a way on the command line to say &quot;copy all the files from directory A to directory B, but if the file already exists in directory B, don&#39;t overwrite it, no matter which file is newer, and don&#39;t prompt me.&quot;

I have been through copy, move, xcopy &amp; robocopy, and the closest I can get is that you can tell robocopy &quot;copy A to B, but don&#39;t overwrite newer files with older files,&quot; but that doesn&#39;t work for me. I looked at xxcopy, but discarded it, as I don&#39;t want to have a third-party dependency on a Visual Studio post-build event that will require other SVN users to have that tool installed in order to do the build.

I want to add a command line to the post-build event in Visual&amp;nbsp;Studio&amp;nbsp;2010 so that the files that are generated from the [T4][1] templates for new [EF][2] model objects get distributed to the project folders to which they belong, but regenerated files for existing objects don&#39;t overwrite potentially edited destination files.

Since the T4 template regenerates, the source file is always newer, and I can&#39;t use the &quot;newer&quot; switch reliably, I don&#39;t think.

I use partial classes for those items for which I can, but there are other things I generate that can&#39;t use partial classes (e.g. generating a default EditorTemplate or DisplayTemplate *.ascx file).

Any one have any similar problems they have solved?

  [1]: http://en.wikipedia.org/wiki/Text_Template_Transformation_Toolkit
  [2]: http://en.wikipedia.org/wiki/ADO.NET_Entity_Framework


Copy files without overwrite

I have a C# solution with two projects: a service (the main project) and a logger. The service uses classes from the logger. I&#39;ve added a Reference to the logger project within the service project. At design time, autocomplete works fine: the logger&#39;s classes are visible, references that I use are colored appropriately.

I Rebuild the solution, and things go wrong. The references are no longer recognized: &quot;The name &#39;Logging&#39; does not exist in the current context&#39; and the classes no longer exist in autocomplete. Removing and reattaching the reference gets me back to the base state of having the identifiers visible to autocomplete.

I&#39;ve rebooted, cleared all caches, made sure this is the only instance of VS 2010 running on my machine.

Is there something obvious (obviously) that I&#39;m missing?

Referenced Project gets &quot;lost&quot; at Compile Time

I have a C# solution with two projects: a service (the main project) and a logger. The service uses classes from the logger. I've added a Reference to the logger project within the service project. At design time, autocomplete works fine: the logger's classes are visible, references that I use are colored appropriately.
I Rebuild the solution, and things go wrong. The references are no longer recognized: "The name 'Logging' does not exist in the current context' and the classes no longer exist in autocomplete. Removing and reattaching the reference gets me back to the base state of having the identifiers visible to autocomplete.
I've rebooted, cleared all caches, made sure this is the only instance of VS 2010 running on my machine.
Is there something obvious (obviously) that I'm missing?

Hello I need to know how to check if the object of the same type in C#.&lt;br/&gt;

Scenario:

    class Base_Data{}
    
    class Person : Base_Data { }
    class Phone  : Base_data { }
    
    class AnotherClass
    {
       public void CheckObject(Base_Data data)
       {
             if (data.Equals(Person.GetType()))
             { //&lt;-- Visual Studio 2010 gives me error, says that I am using &#39;Person&#39; is a type and not a variable.
    
            }
        }
    }

Checking if the object is of same type

I have the following tables

1. ClassRoom     (ClassID,ClassName)
2. StudentClass  (StudentID,ClassID)
3. Student       (StudentID,StudentName,Etc..)
4. StudentDescription. (StudentDescriptionID,StudentID,StudentDescription)


I want to retrieve all the information on student==1

In sql I would do something like BELOW and get all the info about a student.

    
     select * from Student s
     join StudentClass sc on s.StudentID=sc.StudentID
     join ClassRoom c on sc.ClassID=c.ClassID
     left join StudentDescription sd on s.StudentID=sd.StudentID
     where s.StudentID=14

Now my problem.Using EF4 I did something like this but cannot make it work.
Also can you do an include and a left join

Attempt 1

    private static StudentDto LoadStudent(int studentId)
        {
            StudentDto studentDto = null;
            using (var ctx = new TrainingContext())
            {
                var query = ctx.Students
                    .Include(&quot;ClassRooms&quot;)
                    .Include(&quot;StudentDescriptions&quot;)
                    .Where(x=&gt;x.StudentID==studentId)
                    .SingleOrDefault();

                studentDto = new StudentDto();
                studentDto.StudentId = query.StudentID;
                studentDto.StudentName = query.StudentName;
                studentDto.StudentDescription = ??

            }

            return studentDto;
        }

Attempt 2 again incomplete and wrong

    using (var ctx = new TrainingContext())
             {
                 var query = (from s in ctx.Students
                                 .Include(&quot;ClassRooms&quot;)
                             join sd in ctx.StudentDescriptions on s.StudentID equals sd.StudentID into g
                             from stuDesc in g.DefaultIfEmpty()
                             select new
                                        {
                                            Name=s.StudentName,
                                            StudentId=s.StudentID,
                                            
             }).SingleOrDefault();



As you can see I dont know what I am doing here.
How can I convert that Sql into a EF Query?

Entity Framework include with left join is this possible?

I would like to run an external command line program from my Mono/.NET app. 
For example, I would like to run **mencoder**. Is it possible:

   1. To get the command line shell output, and write it on my text box?
   2. To get the numerical value to show a progress bar with time elapsed?

Process.start: how to get the output?

In C# 4, is there a good way to have an optional output parameter?



Optional Output Parameters

What&#39;s the purpose for MarshalByRefObject?

What is the major use of MarshalByRefObject?

Does C have references? i.e. as in C++ :

    void foo(int &amp;i)

Does C have references?

I keep getting the same issue over and over again where an object I want to reference is copied or where an object I want to copy is referenced. This happens when I use the = operator.

For example, if I am sending the object to another form, ie: 

    SomeForm myForm = new SomeForm();
    SomeObject myObject = new SomeObject();
    myForm.formObject = myObject;

...and then modify the object in the form, the original object does not get modified. It is as if the object was copied and not referenced. Yet, when I do this:

    SomeObject myObject = new SomeObject();
    SomeObject anotherObject = new SomeObject();
    anotherObject = myObject;

...and then modify `anotherObject`, `myObject` gets modified as well.

The most aggravating case is when I try to Clone one of my defined objects:

    public class SomeObject
    {
        double value1, value2;
    
        //default constructor here
    
        public SomeObject(val1, val2)
        {
            value1 = val1;
            value2 = val2;
        }
    
        public void Clone(SomeObject thingToCopy)
        {
            this.value1 = thingToCopy.value1;
            this.value2 = thingToCopy.value2;
        }
    }

when I do this...

    SomeObject obj1 = new SomeObject(1, 2);
    SomeObject obj2 = new SomeObject();
    obj2.Clone(obj1);

...`obj1` is referenced and any modifications to `obj2` changes `obj1`.

System objects such as &lt;code&gt;int, double, string&lt;/code&gt;, etc seem to always be copied, except for in the case of the clone method above.

My question is, not taking into account the use of the &lt;code&gt;ref&lt;/code&gt; keyword in functions, when does an object get copied and when does an object get referenced in every case of the matter (i.e. when passing to functions, when setting as other objects (like the first two above examples), when copying member variables like the third example, etc.)?

When is a C# value/object copied and when is its reference copied?

Is this piece of code valid (and defined behavior)?

    int &amp;nullReference = *(int*)0;

Both g++ and clang++ compile it without any warning, even when using `-Wall`, `-Wextra`, `-std=c++98`, `-pedantic`, `-Weffc++`...

Of course the reference is not actually null, since it cannot be accessed (it would mean dereferencing a null pointer), but we could check whether it&#39;s null or not by checking its address:

    if( &amp; nullReference == 0 ) // null reference

Is null reference possible?

I&#39;m having another of these &quot;Could not load file or assembly or one of its dependencies&quot; problems.

&gt; Additional information: Could not load
&gt; file or assembly
&gt; &#39;Microsoft.Practices.Unity,
&gt; Version=1.2.0.0, Culture=neutral,
&gt; PublicKeyToken=31bf3856ad364e35&#39; or
&gt; one of its dependencies. The located
&gt; assembly&#39;s manifest definition does
&gt; not match the assembly reference.
&gt; (Exception from HRESULT: 0x80131040)

I have no idea what is causing this or how I could debug it to find the cause.

I&#39;ve done a search in my solution catalogs .csproj files, and every where I have Unity I have:

&gt; Reference
&gt; Include=&quot;Microsoft.Practices.Unity,
&gt; Version=2.0.414.0, Culture=neutral,
&gt; PublicKeyToken=31bf3856ad364e35,
&gt; processorArchitecture=MSIL&quot;

Can&#39;t find any reference anywhere which goes against 1.2.0.0 in any of my projects.

Any ideas how I should go about solving this?

Could not load file or assembly or one of its dependencies

I&#39;ve noticed that I usually use constant references as return values or arguments. I think the reason is that it works almost the same as using non-reference in the code. But it definitely takes more space and function declarations become longer. I&#39;m OK with such code but I think some people my find it a bad programming style.

What do you think? Is it worth writing *const int&amp;* over *int*? I think it&#39;s optimized by the compiler anyway, so maybe I&#39;m just wasting my time coding it, a?

int vs const int&amp;

Task is to form Visual Studio 2010 project so, that during any build or publish some `foo.exe` utility should be copied to output (`bin`) directory.  

Early I have made PostBuildEvent task in .csproj (MSBuild-file):

    &lt;PropertyGroup&gt;
      &lt;PostBuildEvent&gt;
        Copy &quot;$(SolutionDir)Tools\foo.exe&quot; &quot;$(ProjectDir)$(OutDir)foo.exe&quot;
      &lt;/PostBuildEvent&gt;
    &lt;/PropertyGroup&gt;
 

But this is not universal. During publishing (Visual Studio 2010) `foo.exe` appears in `bin` directory, but is not copied to output publish directory. Maybe I do everything completely wrong and there is standard mechanism to include files in projects to be later, during build or publish, copied to `bin`?


VS2010 How to include files in project, to copy them to build output directory automatically during build or publish

I&#39;ve installed NetBeans 6.9.1 and installed few updates for it.

Then I&#39;ve created a new project from existing sources. After a few changes I&#39;ve closed it. And now I am having an error, when trying to open a new project from existing sources (the same files):

&gt; Sources directory is already netbeans project (maybe only in memory).

After Googling it, I noticed it happened not only with me. But I didn&#39;t find the correct solution. I&#39;ve tried to restart the IDE, I&#39;ve tried to restart the PC, I&#39;ve tried to reinstall NetBeans. Nothing helped.


&quot;Sources directory is already netbeans project&quot; error when opening a project from existing sources

As I was writing up this question I managed to solve it so repeat it here for the benefit of others. Here is the initial problem:

I have created a very simple library project which I want to reference in another project. I have done this previously with no problems so not really sure why it is not working this time. I have:

 1. Flagged the library project via project properties. The `default.properties` file has this set : `android.library=true`

 2. In my other project added reference to my library project via project properties. The `default.properties` file has the reference added as expected ie `android.library.reference.1=K:/android_test_ws/applicationRegistrar`

 3. The green tick against the referenced library project starts off green and then changes to a red cross.

This implies that there must be something wrong / missing from the library project but I don&#39;t know what. My library project on this occasion is MUCH simpler than the previous one I created.

In eclipse, unable to reference an android library project in another android project

Usually a C# project has a .csproj file associated with it. What is that file for? What data does it contain? 

What does the .csproj file do?

I&#39;ve searched for 2 days and can&#39;t find anything. I find things that are close, but not what I need.

I got a new computer recently and copied all of my projects over to my new computer.

I opened Eclipse and generated a workspace, which I then closed out of Eclipse and copied my projects into the workspace/projects folder.

I reopen Eclipse and my projects do not show up at all in the package explorer.

I know that I have the correct folders in the correct directory.

The closest thread I found to this is: https://stackoverflow.com/questions/8459395/eclipse-import-an-existing-project

but even that didn&#39;t help, my projects already meet that...

I have tried refreshing, reopening, fooling with working sets, etc...

Content Type	Original Author	Original Content on Stackoverflow
Question	Bob Kaufman	View Question on Stackoverflow
Solution 1 - C#	joshcomley	View Answer on Stackoverflow
Solution 2 - C#	Manar Gul	View Answer on Stackoverflow

Referenced Project gets "lost" at Compile Time

C# Problem Overview

C# Solutions

Solution 1 - C#

Solution 2 - C#

Copy files without overwrite

JQuery: How to call RESIZE event only once it's FINISHED resizing?

Attributions