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  • Periodically check command line output in C#

    - by iulianchira
    In my C# program I call an external program from command line using a process and redirecting the standard input. After I issue the command to the external program, every 3 seconds I have to issue another command to check the status - the program will respond with InProgress or Finished. I would like some help in doing this as efficient as possible.

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  • Tips for documenting a web application?

    - by Pandiya Chendur
    I know that I can take my asp.net application and get it reversed to a UML document, but that doesn't tell the whole story of things like who can use what, what it calls in the way of stored procedures, what pages call what pages etc. etc. Does anyone know of an article where someone has a comprehensive way to document a web application/site? Or shall I just make up my own way?

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  • MXML Component Life Cycle

    - by Shruti
    Hi, I am new to flex. I am confused with how component life cycle goes when component build in MXML. and if MXML calls methods automatically then how to call any method in life cycle explicitly. Could anybody please explain me Thanks Shruti

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  • how to define a structural type that refers to itself?

    - by IttayD
    I want to create a method sum that I can call on different types, specifically sum(1,2). def sum[A](a1: A, a2: A) = a1 + a2 This fails because the compiler can't tell if A has a method '+' I tried to define a structural type: type Addable = {def +(a: Addable)} This fails because of an illegal cyclic reference How can I achieve this in a type safe way without requiring A to extend a specific trait?

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  • Windows service porting to linux

    - by Sirish Kumar
    I am porting an application which runs as a background service in windows at startup, we are porting the application to linux(SUSE Enterprise server), I'am completely new to linux. Can somebody help me on how to proceed with this. Like Should I build the linux executable After builiding the binary, what changes should I make to linux startup files to run this executable How my service can register call back function to modify or change or send commands to my service while it is running

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  • Neko and haxe.Timer.delayed()

    - by vava
    As every haXe developer knows, you could use haxe.Timer.delayed() to delay function call for some time. But this function doesn't exist for neko at all. Is there a way to achieve the same results?

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  • Simple multi-threading - combining statements to two lines.

    - by Adam
    If I have: ThreadStart starter = delegate { MessageBox.Show("Test"); }; new Thread(starter).Start(); How can I combine this into one line of code? I've tried: new Thread(delegate { MessageBox.Show("Test"); }).Start(); But I get this error: The call is ambiguous between the following methods or properties: 'System.Threading.Thread.Thread(System.Threading.ThreadStart)' and 'System.Threading.Thread.Thread(System.Threading.ParameterizedThreadStart)'

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  • Visual Basic 6 ADO Update question...

    - by Dave
    Hi, I've been working with a Legacy application which interacts with a database through ADODB, and most of the changes to records follow a fairly straightforward pattern of: Create a Recordset from a query Make various change to the recordset call .Update on the recordset. What I'm wondering is, with ADODB recordsets, is there anyway to extract the 'changes'. The logic which changes the recordset is scattered about, and all I need is the changes, not how it was changed... Any suggestions for tracking changes in a recordset (in code, a trigger on the DB or similar is no use here) Thanks in advance

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  • I need to unset the state of the jQuery .toggle(odd,even)

    - by Forkrul Assail
    Hi I have items in a table cell that gets toggled on and off. An external button accepts a click and submits the selected cell values via ajax. The problem is that I want to reset the toggle state for the selected cells. I can easily unset the highlighting, but then need a double click to trigger the correct toggle. Can the .toggle(odd, even) be reset or cycled via an external call? Thanks

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  • PostgreSQL function question

    - by maxxtack
    CREATE FUNCTION foo() RETURNS text LANGUAGE plperl AS $$ return 'foo'; $$; CREATE FUNCTION foobar() RETURNS text LANGUAGE plperl AS $$ return foo() . 'bar'; $$; I'm trying to compose results using multiple functions, but when i call foobar() i get an empty result.

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  • How to make html image clickable inside a TextView

    - by Gonan
    I have the following text in a string in the resources file: <a href="mailto:[email protected]">&lt;img src="mail_big" /&gt;</a> It shows the image fine (I implemented ImageGetter) but it is not clickable. I have tried adding the Linkify thingy but I don't think it's meant for this case, and so it doesn't work. The setMovementMethod doesn't work either. I have tried different combinations of the above: <a href="mailto:[email protected]">&lt;img src="mail_big" /&gt;hello</a> Here, even the "hello" part is not clickable (neither blue nor underlined). <a href="mailto:[email protected]"><img src="mail_big" /></a> This doesn't even show the image. &lt;a href="mailto:[email protected]"&gt;&lt;img src="mail_big" /&gt;&lt;/a&gt; If I just write the email, without the <a> tag it works perfectly, but I would like to use the image of an envelope that the user can click on. It's not possible to use an imagebutton because this text is in the middle of a string and so I can't split it. Any ideas? Thanks! EDIT: I found a solution or rather found how to do it correctly. All I had to do was adding the setMovementMethod call before the call to setText in the TextView and ALSO, and COMPLETELY NECESSARY, remove the attribute "android:autoLink="all" from the layout. Apparently, parsing mails and urls in a string is mutually exclusive to interpreting the link tags in a string. So one or the other but not both. Finally my layout is just a TextView with nothing special, just width and height. The activity is like this: TextView tv = (TextView)findViewById(R.id.about_text); tv.setMovementMethod(LinkMovementMethod.getInstance()); tv.setText(Html.fromHtml(getString(R.string.about_content), new ImageGetter(), null)); And the string is like this: <string name="about_content"><a href="mailto:[email protected]"><img src="mail" /></a></string>

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  • json webservice security

    - by crisgomez
    I have a problem regarding json web service security. I tried to developed a sample web application using json webservice,but the problem is the url was exposed on the client side.So from there,anybody can make a program and call the service for a thousand times. Please take note, that the web service will be using for a registration page, in which checks if the user was exist on the database.So there is no authentication happened on this process. What are the approach to secure the calling of the exposed web service?

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  • Get Windows Last Reboot Timestamp?

    - by David.Chu.ca
    I have a PC on remote connected by network, but it occasionally crashes or is restarted by remote users. After the restart, some services and applications have to be in running status. So I would like to find out the reboot as soon as possible. I think PS may be a good choice with some scripts so that I could make remote call to get the last reboot timestamp information. Is there any way to get a remote Windows XP last reboot timestamp by using PowerShell 2.0?

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  • polymorphism and interfaces

    - by mixm
    if i have two classes x and y, both extend class w. and x implementing interface z. if i have methods doSomething(w object) and doSomething(x object), what would happen if i call doSomething(x)? edit: im implementing this on java, more specifically on android. im asking this because some classes which implement a specific interface mostly does the same thing when doSomething() is called. but there are special cases which i would like to single out.

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  • Mock dll methods for unit tests

    - by sanjeev40084
    I am trying to write a unit test for a method, which has a call to method from dll. Is there anyway i can mock the dll methods so that i can unit test? public string GetName(dllobject, int id) { var eligibileEmp = dllobject.GetEligibleEmp(id); <---------trying to mock this method if(eligibleEmp.Equals(empValue) { .......... } }

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  • Outlook Folder Browse Dialog???

    - by Ike
    Hello there, I'm hoping someone could help me with a quick point in the right direction. ALL I NEED is the Outlook folder browser dialog call. I am developing some plugins for Outlook using C# and this is a crucial part for both plugins. Hopefully, it is like a standard DialogResult that passes back folder information (selected folder) so that I can use this info for further processing. Can anyone help me? Thanks in advance.

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  • The difference between triangulation and mesh

    - by xiao
    I have done some computer graphical programming recently, and I have no experience before. I used the library call CGAL(computer geometry algorithm library). Also, I noticed that there is class for triangulation and also class for mesh. Is mesh just a kind of triangle net? Do they have any differences? Thanks!

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  • Left Outer Join on Many-to-One Mapping

    - by Colin Bowern
    I have a reference to call that may or may not be there. When I add the nullable option it still doing Inner Join when I want an Outer Left Join (show the left even if the right is null). Is this possible in the NH map? References(x => x.DefaultCategory, "CATEGORY_ID") .Nullable();

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  • Sequential GUID in Linq-to-Sql?

    - by JacobE
    I just read a blog post about NHibernate's ability to create a GUID from the system time (Guid.Comb), thus avoiding a good amount of database fragmentation. You could call it the client-side equivalent to the SQL Server Sequential ID. Is there a way I could use a similar strategy in my Linq-to-Sql project (by generating the Guid in code)?

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  • Having trouble wrapping functions in the linux kernel

    - by Corey Henderson
    I've written a LKM that implements Trusted Path Execution (TPE) into your kernel: https://github.com/cormander/tpe-lkm I run into an occasional kernel OOPS (describe at the end of this question) when I define WRAP_SYSCALLS to 1, and am at my wit's end trying to track it down. A little background: Since the LSM framework doesn't export its symbols, I had to get creative with how I insert the TPE checking into the running kernel. I wrote a find_symbol_address() function that gives me the address of any function I need, and it works very well. I can call functions like this: int (*my_printk)(const char *fmt, ...); my_printk = find_symbol_address("printk"); (*my_printk)("Hello, world!\n"); And it works fine. I use this method to locate the security_file_mmap, security_file_mprotect, and security_bprm_check functions. I then overwrite those functions with an asm jump to my function to do the TPE check. The problem is, the currently loaded LSM will no longer execute the code for it's hook to that function, because it's been totally hijacked. Here is an example of what I do: int tpe_security_bprm_check(struct linux_binprm *bprm) { int ret = 0; if (bprm->file) { ret = tpe_allow_file(bprm->file); if (IS_ERR(ret)) goto out; } #if WRAP_SYSCALLS stop_my_code(&cs_security_bprm_check); ret = cs_security_bprm_check.ptr(bprm); start_my_code(&cs_security_bprm_check); #endif out: return ret; } Notice the section between the #if WRAP_SYSCALLS section (it's defined as 0 by default). If set to 1, the LSM's hook is called because I write the original code back over the asm jump and call that function, but I run into an occasional kernel OOPS with an "invalid opcode": invalid opcode: 0000 [#1] SMP RIP: 0010:[<ffffffff8117b006>] [<ffffffff8117b006>] security_bprm_check+0x6/0x310 I don't know what the issue is. I've tried several different types of locking methods (see the inside of start/stop_my_code for details) to no avail. To trigger the kernel OOPS, write a simple bash while loop that endlessly starts a backgrounded "ls" command. After a minute or so, it'll happen. I'm testing this on a RHEL6 kernel, also works on Ubuntu 10.04 LTS (2.6.32 x86_64). While this method has been the most successful so far, I have tried another method of simply copying the kernel function to a pointer I created with kmalloc but when I try to execute it, I get: kernel tried to execute NX-protected page - exploit attempt? (uid: 0). If anyone can tell me how to kmalloc space and have it marked as executable, that would also help me solve the above problem. Any help is appreciated!

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  • User Defined Exceptions with JMX

    - by Daniel
    I have exposed methods for remote management in my application server using JMX by creating an MXBean interface, and a class to implement it. Included in this interface are operations for setting attributes on my server, and for getting the current value of attributes. For example, take the following methods: public interface WordManagerMXBean { public void addWord(String word); public WordsObject getWords(); public void removeWord(String word); } The WordsObject is a custom, serializable class used to retrieve data about the state of the server. Then I also have a WordManager class that implements the above interface. I then create a JMX agent to manage my resource: MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); ObjectName wordManagerName = new ObjectName("com.example:type=WordManager"); mbs.registerMBean(wordManager, wordManagerName); I have created a client that invokes these methods, and this works as expected. However, I would like to extend this current configuration by adding user defined exceptions that can be sent back to my client. So I would like to change my interface to something like this: public interface WordManagerMXBean { public void addWord(String word) throws WordAlreadyExistsException; public WordsObject getWords(); public void removeWord(String word); } My WordAlreadyExistsException looks like this: public class WordAlreadyExistsException extends Exception implements Serializable { private static final long serialVersionUID = -9095552123119275304L; public WordAlreadyExistsException() { super(); } } When I call the addWord() method in my client, I would like to get back a WordAlreadyExistsException if the word already exists. However, when I do this, I get an error like this: java.rmi.UnmarshalException: Error unmarshaling return; nested exception is: java.lang.ClassNotFoundException: com.example.WordAlreadyExistsException The WordAlreadyExistsException, the WordsObject and the WordManagerMXBean interface are all in a single jar file that is available to both the client and the server. If I call the getWords() method, the client has no difficulty handling the WordsObject. However, if a user defined exception, like the one above, is thrown, then the client gives the error shown above. Is it possible to configure JMX to handle this exception correctly in the client? Following some searching, I noticed that there is an MBeanException class that is used to wrap exceptions. I'm not sure if this wrapping is performed by the agent automatically, or if I'm supposed to do the wrapping myself. I tried both, but in either case I get the same error on the client. I have also tried this with both checked and unchecked exceptions, again the same error occurs. One solution to this is to simply pass back the error string inside a generic error, as all of the standard java exceptions work. But I'd prefer to get back the actual exception for processing by the client. Is it possible to handle user defined exceptions in JMX? If so, any ideas how?

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  • Changing image "source" dynamically in runtime

    - by ignatius
    Hello, i am trying to modify during runtime an image in my application, this image is located inside assets folder, so thats why i dissable -use-network=false flag, then i call something like this: img.source="../assets/pict.png"; but it's not working. i know its a silly question but i am stuck here. any hint i appreciate. Br

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