They are saved in the &amp;lt;solutionname&amp;gt;.suo file.  SUO stands for Solution User Options, and should not be added to source control.

No .vbproj.user files should be in source control either!

Starting from Visual Studio 2015 CTP solution and project related files are stored in the .vs directory. The path to the suo file is .vs\&amp;lt;SolutionName&amp;gt;\v14\\.suo for Visual Studio 2015.

I am aware that you can lock an object in c# using lock but can you give up the lock and wait for something else to notify you that it&#39;s changed like you can in java with wait and notify?

It seems to me that synchronised and lock in java and c# respectively are synonomous.

C# equivalent to java&#39;s wait and notify?

So, I understand &lt;i&gt;that&lt;/i&gt; the following doesn&#39;t work, but &lt;i&gt;why&lt;/i&gt; doesn&#39;t it work?

    interface Adapter&lt;E&gt; {}
    
    class Adaptulator&lt;I&gt; {
    	&lt;E, A extends I &amp; Adapter&lt;E&gt;&gt; void add(Class&lt;E&gt; extl, Class&lt;A&gt; intl) {
    		addAdapterFactory(new AdapterFactory&lt;E, A&gt;(extl, intl));
    	}
    }



The &lt;code&gt;add()&lt;/code&gt; method gives me a compile error, &quot;Cannot specify any additional bound Adapter&amp;lt;E&amp;gt; when first bound is a type parameter&quot; (in Eclipse), or &quot;Type parameter cannot be followed by other bounds&quot; (in IDEA), take your pick.

Clearly you&#39;re just Not Allowed to use the type parameter &lt;code&gt;I&lt;/code&gt; there, before the &lt;code&gt;&amp;amp;&lt;/code&gt;, and that&#39;s that. (And before you ask, it doesn&#39;t work if you switch &#39;em, because there&#39;s no guarantee that &lt;code&gt;I&lt;/code&gt; isn&#39;t a concrete class.) But why not? I&#39;ve looked through Angelika Langer&#39;s FAQ and can&#39;t find an answer.

Generally when some generics limitation seems arbitrary, it&#39;s because you&#39;ve created a situation where the type system can&#39;t actually enforce correctness. But I don&#39;t see what case would break what I&#39;m trying to do here. I&#39;d say maybe it has something to do with method dispatch after type erasure, but there&#39;s only one &lt;code&gt;add()&lt;/code&gt; method, so it&#39;s not like there&#39;s any ambiguity...

Can someone demonstrate the problem for me?


Why can&#39;t I use a type argument in a type parameter with multiple bounds?

I seem to be getting breakpoints from other programmers when checking out code...

Where is the list of breakpoints saved by Visual Studio? In the vbproj file? vbproj.user file? documents and settings? are they meant to be specific to the solution, the project, the user, the computer they are set on?

Thanks!


Where are Visual Studio breakpoints saved?

I seem to be getting breakpoints from other programmers when checking out code...
Where is the list of breakpoints saved by Visual Studio? In the vbproj file? vbproj.user file? documents and settings? are they meant to be specific to the solution, the project, the user, the computer they are set on?
Thanks!

Does anybody have a keybinding scheme similar to VS 2005 available for Eclipse?

How to import it into preferences of Eclipse (I see only export button).



Visual Studio&#39;s keybindings for Eclipse

I&#39;ve been working for years with VS&#39;s debugger, but every now and then I come across a feature I have never noticed before, and think &quot;Damn! How could I have missed that? It&#39;s **so** useful!&quot;

[Disclaimer: These tips work in VS 2005 on a C# project, no guarantees for older incarnations of VS or other languages] 

### Keep track of object instances ###
Working with multiple instances of a given class? How can you tell them apart?
In pre-garbage collection programming days, it was easy to keep track of references - just look at the memory address. With .NET, you can&#39;t do that - objects can get moved around.
Fortunately, the watches view lets you right-click on a watch and select &#39;Make Object ID&#39;. 

&gt;&gt;![watches view][1] 

This appends a {1#}, {2#} etc. after the instance&#39;s value, effectively giving the instance a unique label. It looks like this: 
&gt;&gt; ![numbered instance][2]

The label is persisted for the lifetime of that object.

### Meaningful values for watched variables ###
By default, a watched variable&#39;s value is it&#39;s type. If you want to see its fields, you have to expand it, and this could take a long time (or even timeout!) if there are many fields or they do something complicated.

However, some predefined types show more meaningful information :

- strings show their actual contents
- lists and dictionaries show their elements count etc.

![meaningful info][3]

Wouldn&#39;t it be nice to have that for my own types? 

Hmm... 

...some quality time with .NET Reflector shows how easily this can be accomplished with the `DebuggerDisplay` attribute on my custom type:

    [System.Diagnostics.DebuggerDisplay(&quot;Employee: &#39;{Name}&#39;&quot;)]
    public class Employee {
        public string Name { get { ... } }
        ...
    }

... re-run, and...

![ta da!][4]

There&#39;s a lot more info on the subject here: [MSDN][5]

### Break on all exceptions ###
... even the ones that are handled in code!
I know, I&#39;m such a n00b for not knowing about this ever since I was born, but here it goes anyway - maybe this will help someone someday:

You can force a debugged process to break into debug mode each time an exception is thrown. Ever went on a bug hunt for hours only to come across a piece of code like this?

    try {
        runStrangeContraption();
    } catch(Exception ex) {
        /* TODO: Will handle this error later */
    }

Catching all exceptions is really handy in these cases.
This can be enabled from *Debug &gt; Exceptions... (Ctrl-Alt-E)*. Tick the boxes in the &#39;Thrown&#39; column for each type of exception you need.

-----

Those were a few forehead-slapping moments for me. 
Would you care to share yours?


  [1]: http://img403.imageshack.us/img403/461/52518188cq3.jpg
  [2]: http://img383.imageshack.us/img383/7351/11732685bl8.jpg
  [3]: http://img205.imageshack.us/img205/4808/37220487md1.jpg
  [4]: http://img60.imageshack.us/img60/926/79816018ha1.jpg
  [5]: http://msdn.microsoft.com/en-us/magazine/cc163974.aspx

Visual Studio debugger tips &amp; tricks for .NET

I am getting this warning: &quot;Missing XML comment for publicly visible type or member&quot;.

How to solve this?

Missing XML comment for publicly visible type or member

How do I prevent Visual Studio 2008 from automatically creating the &quot;Mixed Platforms&quot; and &quot;Any CPU&quot; solution configurations? We have &quot;Win32&quot; and &quot;x64&quot; configurations and a developer needs to choose between them. However, as soon as anyone makes any changes to the solution VS automatically creates &quot;Mixed Platforms&quot; and it seems to be the default configuration. This causes a lot of issues, because it turns out some new projects are not selected in this configuration or the wrong project configuration is selected, etc. I just want to stop it doing that and manage the solution configurations myself.

Prevent Visual Studio from automatically creating &quot;Mixed Platforms&quot; solution configuration

C++ guarantees that variables in a compilation unit (.cpp file) are initialised in order of declaration. For number of compilation units this rule works for each one separately (I mean static variables outside of classes).

But, the order of initialization of variables, is undefined across different compilation units.

Where can I see some explanations about this order for gcc and MSVC (I know that relying on that is a very bad idea - it is just to understand the problems that we may have with legacy code when moving to new GCC major and different OS)?

Static variables initialisation order

Today I ran into a problem were I needed to remote-debug a program.  The program was launched from another system, so I really don&#39;t have an opportunity to interact with it on the command line.  I could change its source easily though.

What I needed to happen was for the program to start normally, and then wait for me to attach to it with a debugger. I couldn&#39;t come up with a way to do it that made me happy.  I did find the bug, but without the help of the debugger.

    while(true) { }

Kept the process alive, and then I could &quot;set next statement&quot; with the debugger, but it seemed awkward and rude.

    Console.ReadLine();

Seemed odd to type since there wasn&#39;t actually a Console for me to press **enter** at.  (It didn&#39;t work, either.  Set next statement and then run takes you back into the ReadLine() wait.)

So what kind of code can I insert into a .NET/CLR/C# program that says &quot;wait here until I can attach with a debugger&quot;?

How to wait until remote .NET debugger attached

I&#39;m looking for a way in .NET (2.0, C# in particular) for source code to trigger a debugging break as if a breakpoint was set at that point, without having to remember to set a specific breakpoint there in the debugger, and without interfering with production runtime.

Our code needs to swallow exceptions in production so we don&#39;t disrupt a client application that links to us, but I&#39;m trying to set it up so that such errors will pop up to be analyzed if it happens to be running in a debugger, and otherwise will be safely ignored.

My attempt to use &lt;code&gt;Debug.Assert(false)&lt;/code&gt; has been less than ideal, and I assume that &lt;code&gt;Debug.Fail()&lt;/code&gt; would behave the same way.  It should theoretically have no effect in production, and it does successfully stop when debugging, but by design there is (as far as I can tell) no way to continue execution if you want to ignore that error, like you could with an actual breakpoint, and like it would do in production where we swallow the error.  It also apparently breaks evaluation of variable state because the debugger actually stops down in native system code and not in ours, so it&#39;s debugging help is limited.  (Maybe I&#39;m missing some way of getting back into things to look at the variables and so on where it happened. ???)

I was hoping for something like &lt;code&gt;Debug.Break()&lt;/code&gt;, but it doesn&#39;t seem to exist (unless maybe in a later version of .NET?), and no other &lt;code&gt;Debug&lt;/code&gt; methods seem applicable, either.

**Update:** While ctacke&#39;s answer is the best match for what I was looking for, I have since also discovered a trick with Debug.Assert()--when running in the debugger--Pause the debugger, go to the code for the Debug.Assert call pending (highlighted in green because it is down in the framework code) and hit Step-Out (shift-F11), then hit Ignore in the assert dialog box.  This will leave the debugger paused upon the return of the assert (and able to continue execution as if it hadn&#39;t occurred, because it was ignored).  There may be other ways to do much the same thing (does hitting Retry do this more directly?), but this way was intuitive.

Can .NET source code hard-code a debugging breakpoint?

I&#39;m getting a NullPointerException in a Class from a 3rd party library. Now I&#39;d like to debug the whole thing and I would need to know from which object the class is held. But it seems to me that I cannot set a breakpoint in a Class from a 3rd party. 

Does anyone know a way out of my trouble? Of course I&#39;m using Eclipse as my IDE.

Update: the library is open-source.

How to set a breakpoint in Eclipse in a third party library?

OK, *[info break][1]* lists the breakpoints, but not in a format that would work well with reusing them using the --command [as in this question][2]. Does GDB have a method for dumping them into a file acceptable for input again?  Sometimes in a debugging session, it is necessary to restart GDB after building up a set of breakpoints for testing.

The .gdbinit file has the same problem as --command. The *info break* command does not list commands, but rather a table for human consumption.

To elaborate, here is a sample from *info break*:

&lt;pre&gt;
(gdb) info break
Num Type           Disp Enb Address    What
1   breakpoint     keep y   0x08048517 &amp;lt;foo::bar(void)+7&amp;gt;
&lt;/pre&gt;

  [1]: https://sourceware.org/gdb/onlinedocs/gdb/Set-Breaks.html
  [2]: https://stackoverflow.com/questions/500967/gdb-breakpoints



Getting GDB to save a list of breakpoints

I&#39;ve got a small project which, when run in the Eclipse debugger, always seems to stop in FileInputStream.class line 106, where files are opened.  There are no breakpoints set, but Eclipse behaves exactly as if I have a breakpoint here.  If I clear all breakpoints, it still happens.

I have a second much-larger project in the same Eclipse workspace which does not suffer from this problem.

I just moved the smaller project off of my old Linux machine, where I developed it in Europa Eclipse and had this problem, onto my new Windows machine, where I continue to see the problem in Ganymede Eclipse.  The problem persists across operating systems and across Eclipse versions, yet apparently not across projects.  I don&#39;t get it!  I grepped through every file in this project&#39;s directory and couldn&#39;t find anything that might be a file somehow directing Eclipse to stop in FileInputStream.

**Further info**: the apparent breakpoint is actually not for line 106 of FileInputStream; it appears to be an Exception breakpoint for FileNotFoundException, being thrown from native code called from that line in FileInputStream.  But again, I don&#39;t appear to have any breakpoints set at all.  Are Exception breakpoints defined somewhere else?

Content Type	Original Author	Original Content on Stackoverflow
Question	Laurent	View Question on Stackoverflow
Solution 1 - Visual Studio	TheSoftwareJedi	View Answer on Stackoverflow
Solution 2 - Visual Studio	Max	View Answer on Stackoverflow

Where are Visual Studio breakpoints saved?

Visual Studio Problem Overview

Visual Studio Solutions

Solution 1 - Visual Studio

Solution 2 - Visual Studio

Why can't I use a type argument in a type parameter with multiple bounds?

C# equivalent to java's wait and notify?

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