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  • How to register a service with Mono.ZeroConf?

    - by pablo
    Hi, I'm trying to test the ZeroConf sample at http://www.mono-project.com/Mono.Zeroconf. I'm running OpenSuse 11 and Mono 2.2. My server code is: using System; using Mono.Zeroconf; namespace zeroconftestserver { class MainClass { public static void Main(string[] args) { RegisterService service = new RegisterService (); service.Name = "test server"; service.RegType = "_daap._tcp"; service.ReplyDomain = "local."; service.Port = 6060; // TxtRecords are optional TxtRecord txt_record = new TxtRecord (); txt_record.Add ("Password", "false"); service.TxtRecord = txt_record; service.Register(); Console.WriteLine("Service registered!"); Console.ReadLine(); } } } But I can't find my registered service with the sample client browser code nor with mzclient. Thanks!

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  • How to tell if a datareader is open on a connection and close it

    - by Earlz
    Hi, I'm setting up a little thing for connection pooling and on of the more common bugs that we have occur(its always an easy fix, but we just can't remember reader.Close()!) it is when we have a connection that is used by a lot of classes/methods and one method opens a data reader and forgets to close it. This isn't really bad cause a lot of times all you have to do is go into the debugger and go up one level and see the function before it was and check if it had an unclosed data reader. Now, here is the bigger problem. In this connection pool, if a datareader is open, then it's not known until a thread gets a connection and tries to use it and the thing that originally opened the data reader may no longer even be alive. So quite simply, how can you detect if a data reader is open on a connection and is there a way to close the reader without closing the connection?

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  • How to test COM object integrity automatically?

    - by sharptooth
    Every COM object must have integrity. In simplified terms this means that if an object implements 3 interfaces - A, B and C and I have A* pointer to the object I must be able to successfully QueryInterface() both B and C and having B I must be able to retrieve A and C and having C I must be able to retrieve A and B. Now my object implements 5 interfaces and I want to test its integrity. Writing checks for all of the above myself will require a substantial effort. Is there a tool or some easily tweakable code or a code pattern that would do it?

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  • NSFetchRequest returns correct number of objects, but each object contains nil attributes

    - by BU
    Hi, I can't figure out why this is happening. I can add to the context. But when I retrieve the objects, it returns the correct number of objects but the attributes of the objects are null. I am adding 3 instances with this code: +(BOOL)addStoreWithID:(NSNumber *)ID Latitude:(NSNumber *)latitude Longitude:(NSNumber *)longitude Name:(NSString *)name { Stores *store = (Stores *)[NSEntityDescription insertNewObjectForEntityForName:@"Stores" inManagedObjectContext:[[SharedResources instance] managedObjectContext]]; store.ID = ID; store.Latitude = latitude; store.Longitude = longitude; store.Name = name; NSError *error; if(![[[SharedResources instance] managedObjectContext] save:&error]) { //Handle the error return NO; } return YES; } I get the result: 2010-03-07 19:19:37.060 GamePouch_iPhone[11337:207] Store name is Starbucks (gdb) continue 2010-03-07 19:19:37.933 GamePouch_iPhone[11337:207] Store name is Dunkin Donuts (gdb) continue 2010-03-07 19:19:38.717 GamePouch_iPhone[11337:207] Store name is Krispy Kreme I have confirmed that this code is visited three times and none of the attributes are nil. Then when I try to retrieve it, I use the following code: +(NSMutableArray *)fetchAllObjects { NSFetchRequest *request; request = [[NSFetchRequest alloc] init]; NSEntityDescription *entity = [NSEntityDescription entityForName:@"Stores" inManagedObjectContext:[[SharedResources instance] managedObjectContext]]; [request setEntity:entity]; NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"ID" ascending:YES]; NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil]; [request setSortDescriptors:sortDescriptors]; NSError *error; NSMutableArray *array = [[[SharedResources instance] managedObjectContext] executeFetchRequest:request error:&error]; [request release]; [sortDescriptor release]; [sortDescriptors release]; for(int i=0;i<3;i++) { Stores *tempStore = (Stores *)[array objectAtIndex:i]; NSLog(@"store name is %@",[tempStore Name]); } return array; } I get the result: 2010-03-07 19:21:00.504 GamePouch_iPhone[11337:207] store name is (null) (gdb) continue 2010-03-07 19:21:01.541 GamePouch_iPhone[11337:207] store name is (null) (gdb) continue 2010-03-07 19:21:02.503 GamePouch_iPhone[11337:207] store name is (null) Thanks a lot for reading. Any help would be much appreciated. Thanks Bakhtiyar uddin

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  • Use ModalPopupExtender without having to set TargetControlID?

    - by Monty
    I'd like to use a modalpopupextender in my asp.net page to show a sub form. But it only has to show on specific conditions. Those conditions are determined in a piece of javascript code. So, most importantly, the modal popup doesn't have to show on a button click. However, if I leave the property TargetControlID empty I get the following exception: The TargetControlID of 'ModalPopupExtender1' is not valid. The value cannot be null or empty. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.InvalidOperationException: The TargetControlID of 'ModalPopupExtender1' is not valid. The value cannot be null or empty. Do I just have the TargetControlID to an hidden button or is there aslo a more decent option? Thanks.

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  • Visual studio 2008/2010 dilemma

    - by jon
    We have a project which is being developed by a 3rd party. They are using LINQ and .NET 3.5 with Visual Studio 2008. We are currently at 2005 with .NET 2. Once they have delivered the code to us, we are unsure as to whether we will be able to compile/build their code using our current Visual Studio toolkit. I know we can download .NET 3.5, but unsure as to whether we will have problems with Visual Studio. So we are considering to upgrade. But since Visual Studio 2010 is soon to be released do we wait for that or upgrade to 2008?

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  • exe files and Python

    - by Sorush Rabiee
    i have some questions about python: 1- How to build .exe files from .py files? 2- How to run a program with arguments and receive the result by python code? 3- How to load .NET library in python code (or write python in VS.NET IDE [!?])? 4- is built-in integer of python 3.1 something like a string? it calculates 200! in less than one second and calculates 2^1 to 2^7036 (by a simple recursive algorithm & writing them to a text file) with a 1.75GHz cpu in 4 minuets, so if it is a string, how it can be so fast like this? is there a great difference between memory type and logical calculation of python with c++? 5- what is the best python practice? how can i be an expert?

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  • Effective file permissions tool's api in windows

    - by apoorv020
    Starting from Windows Server 2003, Windows included a new tool which calculates the effective permissions for a user (basically it resolves all groups access and takes care of all "deny" permissions as well). An example in point is that a user A belongs to groups B and C. B has been denied read permissions on a file F, while C has been allowed read and write permissions on the file and I want to calculate the effective permissions user A has on file F. This tool is available on Windows Server 2003,Vista,7 and Server 2008 by right clicking on a file and going to properties - security - advanced - effective permissions. What I need is an API in C# which does the same job. The most common FILE API returns access rules (class FileAccessRules), but there seems to be no direct way to calculate effective permissions from these set of access rules. Note: I do not want to process effective permissions in the code if at all possible, but am ready to do so as a last resort.

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  • Compiling netcat on AIX

    - by A.Rashad
    I have been trying to compile netcat.c on AIX for some time (using the command make aix), but the compiler gives me some weird feedback such as : "netcat.c", line 117.12: 1506-275 (S) Unexpected text 'int' encountered. when checked the file netcat.c at line 117, I would find the line (second line in code below): #ifdef HAVE_BIND extern int h_errno; /* stolen almost wholesale from bsd herror.c */ even if I changed the int into char for the same of testing, save the file and re-run the command I get the same error am I missing something in reading the error code?

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  • Advice on HTTPS connections using Ruby on Rails

    - by user502052
    Since I am developing a "secure" OAuth protocol for my RoR3 apps, I need to send protected information over the internet, so I need to use HTTPS connections (SSL/TSL). I read How to Cure Net::HTTP’s Risky Default HTTPS Behavior aticle that mentions the 'always_verify_ssl_certificates' gem, but, since I want to be more "pure" (it means: I do not want to install other gems, but I try to do everything with Ruby on Rails) as possible, I want to do that work without installing new gems. I read about 'open_uri' (it is also mentioned in the linked article: "open_uri is a common exception - it gets things right!") that is from the Ruby OOPL and I think it can do the same work. So, for my needs, is 'open_uri' the best choice (although it is more complicated of 'always_verify_ssl_certificates' gem)? If so, can someone help me using that (with an example, if possible) because I have not found good guides about?

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  • How to create sub category on Magento APi

    - by demonchand
    I am currently using Magento ver. 1.5.0.1. Can anyone tell me how do i create a sub category using soapv2. Here my code format category_data = { "name" => "LIGHTING", "is_active" => 1 } soap.call('catalogCategoryCreate',session,4,category_data,1, "include_in_menu") I got some errors when i run this code. : Attribute "include_in_menu" is required. (SOAP::FaultError) Is that any solution for this problem. Thanks.

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  • How do I uncompress data in PHP which was originally compressed using zlib?

    - by Gaurav Arora
    Hello Everyone, I am quite new to Iphone development , so please bear me if I ask some some common questions. In my application I have to transfer data from my Iphone app to a PHP server and for this I have to compress the NSdata in my Iphone app and then pass it on to the PHP server and then Uncompress it in PHP and process the data sent by Iphone in PHP. For compressing the data in Iphone I have used zlib library.Now on PHP side I want to uncompress this data , but I am unable to do so. Can anyone help me in uncompressing this data in PHP. Thanks in Advance. Gaurav Arora

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  • What is the best database for my needs?

    - by Mr. Flibble
    I am currently using MS SQL Server 2008 but I'm not sure it it is the best system for this particular task. I have a single table like so: PK_ptA PK_ptB DateInserted LookupColA LookupColB ... LookupColF DataCol (ntext) A common query is SELECT TOP(1000000) DataCol FROM table WHERE LookupColA=x AND LookupColD=y AND LookupColE=z ORDER BY DateInserted DESC The table has about a billion rows with 5 million inserted per day. My main problem with SQL Server is that it isn't too easy to shard or spread out the datafiles. Also, exporting seems to max out at 1000rows per second (about 1MB/s) which seems very slow. Another problem I have is, with SQL Server, if I want to add a new LookupCol the log file grows enormously requiring a large amount of rarely used free space on tap. Are there any obvious better solutions for this problem?

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  • Will html5 change everything for designers?

    - by Sean Thompson
    What impact do you think html5 will have on the workflow/way graphic design is done for the web? Right now most designers stay in an Adobe tool, doing most of the design work there, and implement some elements with graphics and some with code. Checking out http://www.apple.com/html5/ it seems that almost everything done in a graphic can be done in code. Will designers have to learn very advanced levels of html5 and do the actual design work in the browser or do you see a more "designer friendly" gui being made for html/graphics work? Will tools like photoshop evolve in a way that handles this new lack of image files?

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  • How to get the PrintDocumentImageableArea for a given PrintQueue without going through PrintDialog?

    - by Patrick Klug
    From MSDN (link): The type PrintDocumentImageableArea has no public constructor. Hence, the variable documentImageableArea must be declared and assigned to Nothing and only then passed to the method. This method displays a PrintDialog requiring input from the user. After the user has selected a printer, paper size, and orientation and closed the dialog, documentImageableArea points to an actual object and its properties are initialized. I have my custom print dialog and need to get the PrintDocumentImageableArea of a given PrintQueue and PrintTicket! (I need the margin's I need to apply) From what I can gather it is quite common for anything but the most basic applications to use their own custom print dialog. There must be a way to get to this information!? Any input appreciated!

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  • treeview and postback

    - by Luis
    hi I have a treeview, and already the javascript code to postback the page. Because when i select the father , auto-select the children. this is my html code <script> function foo() { var o = window.event.srcElement; if (o.tagName == "INPUT" && o.type == "checkbox") { __doPostBack("",""); } } </script> <asp:TreeView ID="HierarchicalTreeView" runat="server" OnSelectedNodeChanged="HierarchicalTreeView_SelectedNodeChanged" ShowLines="True" ExpandImageToolTip="Fechar &quot;{0}&quot;" CollapseImageToolTip="Fechar &quot;{0}&quot;" ExpandDepth="1" OnTreeNodeCheckChanged="HierarchicalTreeView_TreeNodeCheckChanged" EnableClientScripts="true" onClick="foo()"> <NodeStyle CssClass="text" /> <SelectedNodeStyle CssClass="text" Font-Bold="true" /> </asp:TreeView> How can i prevent from postback all page, and only the treeview???, so dont 'refresh' the page

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  • Why PartCover report shows 0% when mstest runs successfully and all tests pass

    - by SvetlanaM
    Hello, I'm trying to get code coverage with mstest tests. I'm using PartCover 2.2.0.36424. The problem is with real assemblies, I get 0% code coverage (Note: All tests pass). On demo test for demo source that I created, it worked fine (the report makes sense). I noticed that in log file: for demo files, after line "Assembly AAAAAA loaded (MyTestesAssemblyName)", there is line "Class NNNNNN loaded (MyTestesAssemblyName.MyClassname)"; and for the real files ther is no second line (for class) after the line for assembly. Have any ideas what is different in our assemblies? (Note: they are not signed) 10x.

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  • Trying to access App.config file for mail settings but fails to work.

    - by mw
    Hello we have a Business Logic Layer which has an Email Services Class. In this class we have a method which will create an email(This part works and compiles fine). However when we try to access the app config file in order to test the method we get an error saying - Can't retrieve the app config mail settings and says all values are null when they are not. Here is the app config section for our code: <mailSettings> <smtp deliveryMethod="Network" from="[email protected]"> <network host="localhost" port="25" defaultCredentials="true"/> </smtp> </mailSettings> Here is there code we use to connect to the app.config: private System.Net.Configuration.MailSettingsSectionGroup mailSettings; SmtpClient client = new SmtpClient(mailSettings.Smtp.Network.Host, mailSettings.Smtp.Network.Port); What are we doing wrong here?

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  • LDAP filter not being considered

    - by Ricky
    Hi there. I am performing an LDAP search query in C like so; ldap_search_ext_s(ld, BASEDN, SCOPE, FILTER, attrs, 0, NULL, NULL, NULL, LDAP_NO_LIMIT, &res); My search performs fine except when I try to specify FILTER to be; #define FILTER "uid=*", that is, when I try to run a search for all LDAP entries with a uid. Unfortunately my code just returns the first entry for each result that it finds. So, my code might find 50 results, but will return the first entry 50 times. Can anyone suspect what I might be doing wrong here? EDIT: I am stepping through my results like so: for (msg = ldap_first_message(ld, res); msg != NULL; msg = ldap_next_message(ld, msg)) Any help is really appreciated. Ricky.

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  • Having template function defination in cpp file - Not work for VC6

    - by Yan Cheng CHEOK
    I have the following source code : // main.cpp #include "a.h" int main() { A::push(100); } // a.cpp #include "a.h" template <class T> void A::push(T t) { } template void A::push(int t); // a.h #ifndef A_H class A { public: template <class T> static void push(T t); }; #endif The code compiled charming and no problem under VC2008. But when come to my beloved VC6, it give me error : main.obj : error LNK2001: unresolved external symbol "public: static void __cdecl A::push(int)" (?push@A@@SAXH@Z) Any workaround? I just want to ensure my function definition is re-inside cpp file.

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  • daynamic 2d array in c++ and memory leaks

    - by SepiDev
    Hi guys, i wrote this code, it runs ok, but when i check it under Valgrind it catches 2 problems, since i can not interpret valgrind's messages i will appreciate if anyone explain me more and tell me where is the problem!!! here is the code: #include <iostream> #define width 70000 #define height 10000 using namespace std; int main(void) { int** pint; pint = new int*[height]; for(int i = 0; i < height; i++) pint[i] = new int[width]; for(int i = 0; i < height; i++){ delete[] pint[i]; pint[i] = NULL; } delete[] pint; pint = NULL; return 1; }

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  • Handwritten linked list is segfaulting and I don't understand why

    - by Born2Smile
    Hi I was working on a bit of fun, making an interface to run gnuplot from within c++, and for some reason the my linked list implementation fails. The code below fails on the line plots-append(&plot). Stepping through the code I discovered that for some reason the destructor ~John() is called immediately after the constructor John(), and I cannot seem to figure out why. The code included below is a stripped down version operating only on Plot*. Originally I made the linked list as a template class. And it worked fine as ll<int and ll<char* but for some reason it fails as ll<Plot*. Could youp please help me figure out why it fails? and perhaps help me understand how to make it work? In advance: Thanks a heap! //B2S #include <string.h class Plot{ char title[80]; public: Plot(){ } }; class Link{ Plot* element; Link* next; Link* prev; friend class ll; }; class ll{ Link* head; Link* tail; public: ll(){ head = tail = new Link(); head-prev = tail-prev = head-next = tail-next = head; } ~ll(){ while (head!=tail){ tail = tail-prev; delete tail-next; } delete head; } void append(Plot* element){ tail-element = element; tail-next = new Link(); tail-next-prev = tail; tail-next = tail; } }; class John{ ll* plots; public: John(){ plots= new ll(); } ~John(){ delete plots; } John(Plot* plot){ John(); plots-append(plot); } }; int main(){ Plot p; John k(&p); }

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  • Using OpenSessionInViewInterceptor with Hibernate and JSF 2

    - by sammy
    I'm building an application in Hibernate, Spring and JSF2 using only annotations. How can I take advantage of OpenSessionInViewInterceptor found in Spring to catch any hibernate session that might open within a bean? I'm trying to elegantly solve the common “failed to lazily initialize a collection of role: your.Class.assocation no session or session was closed.” problem when trying to read from a yet uninitialized list of POJOs inside another POJO (A Tag entity retrieved by a DAO that contains a List of Project objects I want to read). I've found this: http://www.paulcodding.com/blog/2008/01/21/using-the-opensessioninviewinterceptor-for-spring-hibernate3/ but failed to make use of it in my environment. Please provide a detailed answer, as the Internet is full of foggy, unhelpful tutorials. I'll also be greatful for an alternative solution, given a step-by-step instruction is provided.

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  • How to integrate pep8.py in Eclipse?

    - by DZPM
    A little background: PEP 8 is the Style Guide for Python Code. It contains the conventions all python programmers should follow. pep8.py is a (very useful) script that checks the code formating of a given python script, according to PEP 8. Eclipse is a great IDE. With the Pydev extension, it that can be used to develop Python I run pep8.py manually when I'm scripting, but with bigger projects I prefer to use Eclipse. It would be really useful to integrate pep8.py in Eclipse/Pydev, so it can be run automatically in all the files in the project, and point to the lines containing the warnings. Maybe there is an obvious way to do it, but I haven't found it yet. Question is: How to integrate pep8.py in Eclipse?

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  • Java System.in issue

    - by theo
    `public static void main(String[] args) { Scanner sc = new Scanner(System.in); while (sc.hasNext()) { if (sc.next().equals("exit")){ System.out.println("EXITING"); System.exit(0); } else { System.out.println("IM STILL WORKING ok?"); } } } }` So here is a piece of code i was writing the other day to try and figure sth out (doesn't really matter what). The result of executing this code is : eIM STILL WORKING ok? eIM STILL WORKING ok? exit IM STILL WORKING ok? exit EXITING Can somebody kindly explain why this has happened?

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