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  • Does a System.Collection.Collection<T> wrap a IList<T> or enumerate over the IList<T> or simply wra

    - by Brian Triplett
    If I am exposing a internal member via a Collection property via: public Collection<T> Entries { get { return new Collection<T>(this.fieldImplimentingIList<T>); } } When this property is called what happens? For example what happens when the following lines of code are called: T test = instanceOfAbove.Entries[i]; instanceOfAbove[i] = valueOfTypeT; It's clear that each time this property is called a new reference type is created but what acctually happens? Does it simply wrap the IList<T> underneath, does it enumerate over the IList<T> and to create a new Collection<T> instance? I'm concerned about performance if this property is used in a for loop.

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  • Comparing ASP.Net Framework to Cakephp, Zend , Ruby on Rails

    - by numerical25
    I am a PHP developer migrating to C# ASP.Net Framework. As of right now, I am experienced in using Php for developing sites and I use CakePhp and Zend framework as my RAD tools to help me produce better applications. As I move over to ASP.NET, I have this view that C# ASP.Net framework itself is already a RAD tool and is equivalent to using Cakephp, Zend, or even Ruby on Rails. So I really shouldn't have no concerns trying to find a separate library for ASP.NET that will help me produce better applications. To me, in a sense the ASP.NET is already like a MVC cause it seperates the model from the view and the methods are almost like controllers. So as far as having the best tools are concerned, should I be satisfied with just using ASP.NET as my RAD tool.

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  • Work-around for PHP5's PDO rowCount MySQL issue

    - by Steven Surowiec
    I've recently started work on a new project using PHP5 and want to use their PDO classes for it. The problem is that the MySQL PDO Driver doesn't support rowCount() so there's no way to run a query and then get the number of affected rows, or rows returned, which is a pretty big issue as far as I'm concerned. I was wondering if anyone else has dealt with this before and what you've done to work around it. Having to do a fetch() or fetchAll() to check if any rows were affected or returned seems like a hack to me, I'd rather just do $stmt-numRows() or something similar.

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  • How to authenticate WCF calls using forms authentication and secutity

    - by Fixer
    I'm planning a set up for a distributed application that spans serveral machines and will use WCF to send data in between. Machine A Front end website http://www.site.com Password protected site using Forms Authentication Machine B WCF Application Service http://service1.site.com/DoSomething.svc Machine C WCF Application Service http://service2.site.com/DoSomething.svc The WCF services on Machine B and Machine C should check that the request from Machine A has been authenticated. How can i check that the request is authenticated across the different machines? I only care that the request is authenticated and not concerned about securing the message body (because we are not sending any sensitive data across the wire), so SSL is not required. What authentication methods can i use for the above scenario?

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  • Image Uploading - security issues

    - by TenaciousImpy
    Hi, I'm developing an ASP.NET Web app and would like the user to be able to either upload an image from their local system, or pass in a URL to an image. The image can either be a JPG or PNG. What security issues should I be concerned about doing this? I've seen various ways of embedding code within JPG files. Are there any methods in C# (or external libraries) which can confirm that a file is a JPG/PNG, otherwise throw an error? At the very least, I'm making the directory which holds uploaded images non-browsable and putting a max size limit of 1mb, but I'd like to implement further checks. Thanks for any advice.

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  • PHP: why uniqid returned value is only 13 digits long

    - by Marco Demaio
    uniqid() function returns a 13 digits long hexadecimal number. According to the spec in php.net site, the function uses microtime to generate the unique value. But microtime returns numbers in string format as the following one: "0.70352700 12689396875" which are basically the microseconds and the seconds elapsed since 1970. This is a 9+11 digits decimal number. Converting a 20 decimal number into hex would result in a 16 digits hexadecimal NOT a 13 digits one. I also thought to take out the "0." part that seem to never change, and the last two digits of the microsec part that seem to remain always "00". Doing this the decimal number would be only 9+11-3 digits long, but still a decimal number of 17 digits when converted into hex would result in 14 digits hexadecimal number NOT 13. You probably think I'm crazy in asking such a thing, but I'm concerned about using uniqid, unique values are important to be unique, a duplicated value could screw up an entire application.

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  • Why powershell runs executables in separate window?

    - by Artem Tikhomirov
    On one of my servers (2008 R2) powershell refuses to run executables without extension, so typing cmd (or &cmd) in command prompt results in folowing error message: The term 'cmd' is not recognized as the name of a cmdlet Invoking executable one of the following ways pops out separate window (which executes asynchronously in respect to parent). I've tried that in x86 version of powershell and in x64 one. I've tried -Noprofile argument. PATH seems to be OK. It includes System32 and all. The only way I've managed to execute cmd inline form powershell is opening standard cmd.exe shell, executing powershell.exe from it and executing cmd /c echo test from it. Inception, huh? What should I try next?

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  • Can 'screen' grab an existing process and tie itself to it?

    - by warren
    Scenario: Started a process that's going to take "a while" to complete outside of screen. Need to leave the terminal / netowrk hiccups Process lost Would be nice if: Started a process outside of screen Realize error Run screen <magic-goes-here> and it grabs the active process to itself From the man pages and --help info, I don't see a way this can be done. Is this possible directly with screen? If not, is it possible to change the owning shell of a process, so that the bash (or other shell of your choosing) instance inside screen can have a command run which will change the parent shell of the initial process to itself from the originator?

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  • How to convert a PCRE to a POSIX RE?

    - by David M
    This interesting question http://stackoverflow.com/questions/2837267/ concerned how to do a negative look-ahead in MySQL. The poster wanted to get the effect of Kansas(?! State) because MySQL doesn't implement look-ahead assertions, a number of answers came up the equivalent Kansas($|[^ ]| ($|[^S])| S($|[^t])| St($|[^a])| Sta($|[^t])| Stat($|[^e])) The poster pointed out that's a PITA to do for potentially lots of expressions. Is there a script/utility/mode of PCRE (or some other package) that will convert a PCRE (if possible) to an equivalent regex that doesn't use Perl's snazzy features? I'm fully aware that some Perl-style regexes cannot be stated as an ordinary regex, so I would not expect the tool to do the impossible, of course!

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  • Some Mac applications crash frequently, with "__THE_SYSTEM_HAS_NO_PORT_SETS_AVAILABLE__" in backtrace

    - by smokris
    Recently I'm finding that some Mac OS X applications are crashing frequently with backtraces like the following: Process: Mail [39226] Path: /Applications/Mail.app/Contents/MacOS/Mail Identifier: com.apple.mail Version: 4.4 (1082) Build Info: Mail-10820000~1 Code Type: X86-64 (Native) Parent Process: launchd [338] Date/Time: 2011-01-12 21:59:48.383 -0500 OS Version: Mac OS X 10.6.6 (10J567) Report Version: 6 Exception Type: EXC_BREAKPOINT (SIGTRAP) Exception Codes: 0x0000000000000002, 0x0000000000000000 Crashed Thread: 12 Dispatch queue: com.apple.root.default-priority [...] Thread 12 Crashed: Dispatch queue: com.apple.root.default-priority 0 com.apple.CoreFoundation 0x00007fff81653975 __THE_SYSTEM_HAS_NO_PORT_SETS_AVAILABLE__ + 5 1 com.apple.CoreFoundation 0x00007fff815a1f69 __CFRunLoopFindMode + 553 2 com.apple.CoreFoundation 0x00007fff815a1c5d __CFRunLoopCreate + 317 3 com.apple.CoreFoundation 0x00007fff815a1a78 _CFRunLoopGet0 + 744 4 com.apple.CoreFoundation 0x00007fff815dc90a CFRunLoopRunInMode + 58 5 com.apple.MessageFramework 0x00007fff81d01183 +[NSRunLoop(MessageExtensions) _flushQueuedEventsAddingSource:] + 120 6 com.apple.MessageFramework 0x00007fff81d010d2 +[NSRunLoop(MessageExtensions) flushQueuedEvents] + 36 7 com.apple.MessageFramework 0x00007fff81ce6515 -[_MFInvocationOperation main] + 275 8 com.apple.Foundation 0x00007fff83921de4 -[__NSOperationInternal start] + 681 9 com.apple.Foundation 0x00007fff83a00beb __doStart2 + 97 10 libSystem.B.dylib 0x00007fff801402c4 _dispatch_call_block_and_release + 15 11 libSystem.B.dylib 0x00007fff8011e831 _dispatch_worker_thread2 + 239 12 libSystem.B.dylib 0x00007fff8011e168 _pthread_wqthread + 353 13 libSystem.B.dylib 0x00007fff8011e005 start_wqthread + 13 [...] Any ideas about what might be causing this and/or how to remedy it?

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  • Best way to reuse a footer menu in Android

    - by Gunnar Lium
    I'm trying to implement a menu in the footer of an app, similar to i.e. the Engadget app. As I understand, getting a standard TabLayout to work in this way is not trivial (if at all possible?). As I see quite a few apps using this interface paradigm, I would assume there is a clever way of doing it. Currently, I'm defining the layout by adding an include line at the end of every layout. This works fine as far as rendering is concerned, but I have to add the onClickListeners to each activity. can we define clickListener through XML? To sum up my question: What is the best way to implement a shared footer navigation accross several Activities?

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  • Mimic NTFS "Modify" Permissions on an ext3 acl enabled filesystem in linux?

    - by bobinabottle
    I am migrating our file share from Windows Server to Samba on Linux, and the only hurdle I have at the moment is the acl's. Currently we have a number of directories that use the "Modify" permission on NTFS, so users can write to a directory, but once the file is written it cannot be modified. On Linux, I had the idea that I would set an ACL for the directory to have read/write access, but have a default ACL associated with read only access. Is this possible? I'm not quite sure how to set a default ACL that differs from the parent directory. Thanks!

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  • Is WPF the Future of Windows UI Development?

    - by Randy Minder
    We're debating whether our future Windows UI development should be WinForms or WPF. How have some of you made this decision? Most of our applications are LOB applications, and I'm not sure I see a clear and overwhelming benefit to WPF for these types of applications. However, my knowledge of WPF is limited. I'm also a little concerned that WPF will be in vogue for another couple years and then Microsoft will get tired of it and push something else on us. I guess one argument against this is the fact that Visual Studio 2010 is a WPF application. Thanks.

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  • TIBRV: Remote vs Local RVD

    - by jsw
    When connected to a local RVD a sending application is shielded from network interruptions and the send message methods will only block for the time it takes for the message to reach the local RVD process. With remote RVD the sending application is no longer shielded from network interruptions and the send message methods will block for the time it takes to hop across the network to reach the remote RVD process. Is my understanding correct? The documentation is vague regarding remote daemons. I'm mostly concerned with how reliable and performant the send message will be from the perspective of a sending application. Introducing unnecessary blocking on the client side due to sending a message (especially a network hop) is a big no-no in this application. The speed at which the messages reach the consumer is not of the utmost importance. With this in mind is a remote RVD out of the question?

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  • Regular Expressions: RegEx for determining valid PHP class property names?

    - by Brian Lacy
    I am using PHP's magic __set and __get methods to access a private array in a class. I want to make sure the property names requested (i.e. $myObj->FakeProperty) are valid according to PHP property name rules before accessing them. My current RegEx isn't doing the trick; with my test values, _12 always falls through the cracks. I'm not actually sure that my test values even represent a realistic representation of what is and isn't allowed for PHP class property names, but I'm not really too concerned about it, just that I have some sort of rudimentary check in place. Test Fields: albert12 12Albert _12 _Albert12 _12Albert _____a_1 RegEx: ^(?=_*[A-z]+)[A-z0-9_]+$

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  • Find out ESXi host from VM? [duplicate]

    - by Kyle Brandt
    This question already has an answer here: Determining the name of the VMware host of a VM guest - from the guest 3 answers I have a monitor that is running on all guests, Windows and Linux. I'd like to send back the Parent host of the guest with this monitor, How can I found out the VM host from within a ESXi VM? Ideally I'm looking for a universal way to do this from both Windows and Linux, but if they are separate paths that okay. Using something from VMWare tools would be fine, but I'm not currently using anything running the vSphere API.

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  • C# differences between Windows Mobile and regular Windows

    - by Matt
    Are there many differences between Windows and Windows Mobile as far as C# programming is concerned? I can write some moderately complicated programs in C#, but I'm not sure if it would just run perfectly on a Windows smartphone, or if something has to be done to port it. If so, is there a tool that will automatically revise code to make it mobile-compatible? The reason I ask is that the new Windows mobile 7 will only support a few methods of app development, one of which is C#. Also, do smartphones with non-windows operating systems have C# support available? Or can C# code be converted to Symbian or iPhone or whatever? Thanks for any help you can provide.

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  • How to set up an SSL Cert with Subject Alternative Name

    - by Darren Oster
    To test a specific embedded client, I need to set up a web server serving a couple of SSL (HTTPS) sites, say "main.mysite.com" and "alternate.mysite.com". These should be handled by the same certificate, with a Subject Name of "main.mysite.com" and a Subject Alternative Name of "alternate.mysite.com". This certificate needs to be in an authority chain back to a 'proper' CA (such as GoDaddy, to keep the cost down). My question is, are there any good tutorials on how to do this, or can someone explain the process? What sort of parent certificate do I need to purchase from the CA provider? My understanding of SSL certificates is limited, but as Manuel said in Fawlty Towers, "I learn...". I'm happy to work in Windows (IIS) or Linux (Apache) (or even OSX, for that matter). Thanks in advance.

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  • Are these tables too big for SQL Server or Oracle

    - by Jeffrey Cameron
    Hey all, I'm not much of a database guru so I would like some advice. Background We have 4 tables that are currently stored in Sybase IQ. We don't currently have any choice over this, we're basically stuck with what someone else decided for us. Sybase IQ is a column-oriented database that is perfect for a data warehouse. Unfortunately, my project needs to do a lot of transactional updating (we're more of an operational database) so I'm looking for more mainstream alternatives. Question Given these tables' dimensions, would anyone consider SQL Server or Oracle to be a viable alternative? Table 1 : 172 columns * 32 million rows Table 2 : 453 columns * 7 million rows Table 3 : 112 columns * 13 million rows Table 4 : 147 columns * 2.5 million rows Given the size of data what are the things I should be concerned about in terms of database choice, server configuration, memory, platform, etc.?

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  • tag structured Filesystems

    - by A.Rashad
    I hope this is the correct site, I lose my way between the 4 sister sites :) Let me ask the question this way. all file systems I have seen before are hierarchical, that means a root directory, with some branched directories, and so on until we have files residing in these directories. except for AS/400 file structure, where it has a concept of a Library that serve somehow as a directory but one level only. Why not have directory-less filesystems where files are placed in a single location, but the file identifiers would be referenced by a database of tag/ file relation ships. This way there will be no need for symbolic links, one file may have multiple relations to multiple subjects, not only a single parent directory to contain. I hope the idea is clear.

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  • PHP Redirect problem with subdomain

    - by gms8994
    I'm using PHP to redirect a page back to the previous page with the following: header("Location: {$_SERVER['HTTP_REFERER']}"); This set of pages will only be used by internal users, so I'm not terribly concerned about the fact that the referer will not always be available. The problem I'm running in to is that if the referer looks like http://subdomain.domain.com/test.php?id=13, the redirect ends up going to http://subdomain.domain.com/.domain.com/test.php?id=13. Notice the additional .domain.com/ in the url. I've tested by hardcoding the value, and it causes the problem as well. phpMyAdmin seems to suffer the same issue, but only on this particular server. If this is not an SO question, please move accordingly.

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  • What happens to date-times and booleans when using DbLinq with SQLite?

    - by DanM
    I've been thinking about using SQLite for my next project, but I'm concerned that it seems to lack proper datetime and bit data types. If I use DbLinq (or some other ORM) to generate C# classes, will the data types of the properties be "dumbed down"? Will date-time data be placed in properties of type string or double? Will boolean data be placed in properties of type int? If yes, what are the implications? I'm imaging a scenario where I need to write a whole second layer of classes with more specific data types and do a bunch of transformations and casts, but maybe it's not so bad. If you have any experience with this or a similar scenario, what are your "lessons learned"?

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  • Looking for exhaustive list of commands and a way to set style

    - by humble_coder
    Hi All, I'm currently working with CKEditor (http://ckeditor.com/). I'm looking for: 1) an exhaustive list of commands available by default via 'execCommand'. 2) a mechanism by which to set styles (as in the same way the FONT and SIZE combo boxes do it). I saw the function called 'setStyle' in the documentation, however it seems to require an exact element. I can't for the life of me figure out how to do so based on the selection -- there is no way to use ID or CLASS, as the selected portions have none. I've posted to the forums but they don't seem to be terribly active as far as replies are concerned. Any assistance would be most appreciated. Best.

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  • Does RDNS for mail server have to match the mail server hostname exactly?

    - by threecheeseopera
    Typically when setting up a mail server, I create an rDNS record for the mail server IP to match the mail server hostname (ex: mail.example.com). Can I instead set the rDNS ptr to match the parent domain (e.g. example.com), if this server is being used for multiple purposes, and still send mail successfully (i.e. not be classified as spam b/c of mismatched rDNS)? Thanks! EDIT: The article at http://en.wikipedia.org/wiki/Forward_Confirmed_reverse_DNS seems to indicate that it might be more complicated than I had thought. For instance, 1) I did not know that you could have multiple PTR records for a given IP; 2) it appears that as long as each PTR record matches an A record, everything is good (basically nullifying my question). Would you agree?

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  • C# Binary File Compare

    - by Simon Farrow
    I'm in a situation where I want to compare two binary files. One of them is already stored on the server with a pre-calculated Crc32 in the database from when I stored it originally. I know that if the Crc is different then the files are definitely different. However, if the Crc is the same I don't know that the files are. So what I'm looking for is a nice efficient way of comparing the two streams on from the posted file and one from the file system. I'm not an expert on streams but I'm well aware that I could easily shoot myself in the foot here as far as memory usage is concerned. Any help is greatly appreciated.

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