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  • Default Arguments in Matlab

    - by Scott
    Hello. Is it possible to have default arguments in Matlab? For instance, here: function wave(a,b,n,k,T,f,flag,fTrue=inline('0')) I would like to have the true solution be an optional argument to the wave function. If it is possible, can anyone demonstrate the proper way to do this? Currently, I am trying what I posted above and I get: ??? Error: File: wave.m Line: 1 Column: 37 The expression to the left of the equals sign is not a valid target for an assignment. Thanks!

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  • Best way to perform authentication on every request

    - by Nik
    Hello. In my asp.net mvc 2 app, I'm wondering about the best way to implement this: For every incoming request I need to perform custom authorization before allowing the file to be served. (This is based on headers and contents of the querystring. If you're familiar with how Amazon S3 does rest authentication - exactly that). I'd like to do this in the most perfomant way possible, which probably means as light a touch as possible, with IIS doing as much of the actual work as possible. The service will need to handle GET requests, as well as writing new files coming in via POST/PUT requests. The requests are for an abitrary file, so it could be: GET http://storage.foo.com/bla/egg/foo18/something.bin POST http://storage.foo.com/else.txt Right now I've half implemented it using an IHttpHandler which handles all routes (with routes.RouteExistingFiles = true), but not sure if that's the best, or if I should be hooking into the lifecycle somewhere else? Many thanks for any pointers. (IIS7)

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  • Get DataGridView checkbox cell value?

    - by George
    Hello guys. I'm having a strange issue here. I have a 3 column datagrid that is filled by a connection with the database. So far so good. I have an extra column, of checkbox type. I need to get it's value for perfoming a bulk operation on it. Here is the catch: When all cells are selected, it works fine. But when an user selects any cell that its not the first, software gives me a object reference exception. Here is the code public List<String> GetSelected() { List<String> selected = new List<String>(); foreach(DataGridViewRow row in datagrid.rows) { if ((Boolean)row.Cells[wantedCell].Value == true) { selected.Add(row.Cells[anotherCell]); } } } I tracked down the failure to the if-test, throwing a exception, because the value of the cell is read as null. Any thougths? Thanks

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  • Installing CodeIgniter on root and WordPress in sub-directory

    - by maSnun
    Hello, I want to create a website where the main pages will be served from CodeIgniter. I will use Wordpress in the /blog/ sub-directory to host the blog. Thats it! I want nothing else. Just to make sure that: example.com/somepage/ calls a CI controller where as example.com/blog/some-post/ is handled by Wordpress. I don't need any kind of integration or interaction between CI and WP. Is it possible to install in that way? If not, any workarounds so that I can achieve the objectives? Thanks and Regards, Masnun

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  • How to sanely read and dump structs to disk when some fields are pointers?

    - by bp
    Hello, I'm writing a FUSE plugin in C. I'm keeping track of data structures in the filesystem through structs like: typedef struct { block_number_t inode; filename_t filename; //char[SOME_SIZE] some_other_field_t other_field; } fs_directory_table_item_t; Obviously, I have to read (write) these structs from (to) disk at some point. I could treat the struct as a sequence of bytes and do something like this: read(disk_fd, directory_table_item, sizeof(fs_directory_table_item_t)); ...except that cannot possibly work as filename is actually a pointer to the char array. I'd really like to avoid having to write code like: read(disk_df, *directory_table_item.inode, sizeof(block_number_t)); read(disk_df, directory_table_item.filename, sizeof(filename_t)); read(disk_df, *directory_table_item.other_field, sizeof(some_other_field_t)); ...for each struct in the code, because I'd have to replicate code and changes in no less than three different places (definition, reading, writing). Any DRYer but still maintainable ideas?

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  • How is load balancing in big systems implemented?

    - by uther-lightbringer
    Hello, I'm wondering how is implemented load balancing in realy big applications like google or facebook. I know that in normal scenario there may be machine dedicated to this task, but I would like to know how is it resolved in realy big aplication with hundreds of thousans people accessing it in any given time. I am just wondering how exactly when one types google.com will that request find its way to concrete computer (are there multiple load balancers? and how is it set up and implemented that user's request will find the way to concrete balancer out of many others). I will realy appreciate if someone enlightens me this issue, thank you.

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  • How to prevent UI from freezing during lengthy process?

    - by OverTheRainbow
    Hello, I need to write a VB.Net 2008 applet to go through all the fixed-drives looking for some files. If I put the code in ButtonClick(), the UI freezes until the code is done: Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 'TODO Find way to avoid freezing UI while scanning fixed drives Dim drive As DriveInfo Dim filelist As Collections.ObjectModel.ReadOnlyCollection(Of String) Dim filepath As String For Each drive In DriveInfo.GetDrives() If drive.DriveType = DriveType.Fixed Then filelist = My.Computer.FileSystem.GetFiles(drive.ToString, FileIO.SearchOption.SearchAllSubDirectories, "MyFiles.*") For Each filepath In filelist 'Do stuff Next filepath End If Next drive End Sub Google returned information on a BackGroundWorker control: Is this the right/way to solve this issue? If not, what solution would you recommend, possibly with a really simple example? FWIW, I read that Application.DoEvents() is a left-over from VBClassic and should be avoided. Thank you.

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  • will the desktop appstore icon be appear only after approval ?

    - by hib
    hello all , I am just going to submit my iphone application . But I just have a doubt . when I test my application with adhoc certificate the application icon come nicely in the device homescreen . but I haven't got it for desktop app store (i.e iTunes). I have read that I have to submit another 57 by 57 icon for the desktop icon . Question :So this 57 by 57 icon will come in my itunes after I will upload through iTunes Connect and my application is approved ? and will I have to include it in the binary or itunes connect uploading will make it work. thanks .

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  • Adding padding to HTML elements - IE, FF, Chrome etc.

    - by NLV
    Hello I've a doubt. Lets consider that we have a div of width 200px. If i add the following the style style="padding-left:10px; padding-right:10px" to the element what happens actually? Will the total width of the div increases to 220px with 10px at the left (for left padding), original width 200px at the middle and 10px at the right (for right padding)? Or will it takes the padding space from the 200px and becomes (10px + 180px + 10px)? Does the above rendering differs for each browser (especially IE and FF)? Thank you NLV

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  • Spring Roo and aspect-oriented programming

    - by marcos
    Hello, i've been running some experiments of my own with Spring Roo and it seems to be pretty cool, but i noticed that this tool makes heavy use of AOP on the model layer. I'm thinking about creating a real project using Roo and what i would like to know is: Why AOP is everywhere? Is That ok? What are advantages and disadvantages of this approach? I'm quite new to aspect-oriented programming and some guidance would be greatly appreciated. Thanks in advance!

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  • numbers of Parameters in Webservice function

    - by sachin
    hi, I am trying to call webservice from python client using SUDS. as per SUDS support, (https://fedorahosted.org/suds/wiki/Documentation#OVERVIEW) I created a webservice with Config: SOAP Binding 1.1 Document/Literal though Document/literal style takes only one parameter, SUDS Document (https://fedorahosted.org/suds/wiki/Documentation#BASICUSAGE) shows: Suds - version: 0.3.3 build: (beta) R397-20081121 Service (WebServiceTestBeanService) tns="http://test.server.enterprise.rhq.org/" Prefixes (1): ns0 = "http://test.server.enterprise.rhq.org/" Ports (1): (Soap) Methods: addPerson(Person person, ) echo(xs:string arg0, ) getList(xs:string str, xs:int length, ) getPercentBodyFat(xs:string name, xs:int height, xs:int weight) getPersonByName(Name name, ) hello() testExceptions() testListArg(xs:string[] list, ) testVoid() updatePerson(AnotherPerson person, name name, ) Types (23): Person Name Phone AnotherPerson Which has functions with several or no parameters. can we have such methods(Exposed) in a webservice with Document/Literal Style? if so how?

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  • PHP/JS/JQUERY: Smart method to Auto check/updating a points status

    - by Azzyh
    Hello. Hi everyone. So right now I am using me of this: function checkpoints() { var postThis = 'checker.php?userid='+ $('#user_id_points').val(); $.post(postThis, function(data){ $(".vispoints").html(data).find(".vispoints1").fadeIn("slow") }); setTimeout(checkpoints, 5000); } This function repeats each 5 seconds (sending request each 5 seconds) and running the checker.php each 5 seconds, to show how many points you got. (checker.php echo out how many points you've got in a span class vispoints1). Now isnt there a smarter method doing this, instead of sending requests like this all the time.. I mean sites like facebook and that, they dont do like this to check if you e.g got a new friend request? Hope you can help me find a better method examples would be good too.

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  • Send Email Using Classic ASP with an Embeded Image

    - by Khilen
    hi i am making NewsLetter using the wysiwyg Editor.. it allows me to upload the Image Path and Image Path is stored in the Upload Directory.. Not When i retrieve that Image using it works in website.. the editor's value is stored in database example <br> hi <img src="upload/acb.gif"> <br> Hello i am sending Email and the detail of this email is received from database and this detail is sent to visitor he is gettion all text value but not able to see Image so suggest me what to do..?

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  • Bash loop command until file contains n duplicate entries (lines)

    - by Andrew
    Hello, I'm writing a script and I need to create a loop that will execute same commands until file does contain a specified number of duplicate entries. For example, with each loop I will echo random string to file results. And I want loop to stop when there are 10 lines of of the same string. I thought of something like while [ `some command here (maybe using uniq)` -lt 10 ] do command1 command2 command3 done Do you have any idea how can this problem be solved? Using grep can't be done since I don't know what string I need to look for. Thank you for your suggestions.

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  • R: including model specifications in xtable(anova(...))

    - by HamiltonUlmer
    Hello R comrades: I have a bunch of loglinear models, which, for our purposes will just be glm() objects called mx, my, mz. I want to get a nicely-formatted xtable of the analysis of deviance, so naturally I would want to perform xtable(anova(mx, my, mz, test = "Chisq")). The vanilla output of xtable, however, doesn't include the model specifications. I'd like to include those for all the ANOVA tests I'm running, so if there is not a param I'm missing that does this I'll probably just have to hack up my own solution. But looking over the help page, there doesn't seem to be an easy way to include the model specifications. Any thoughts? Alternatives? If it helps this was done in 2.9.1 with xtable 1.5-5.

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  • why primitive type will call first rather than wrapper classes?

    - by kandarp
    Hello EveryOne, public class A { public void test(Integer i) { System.out.println("In Wrapper Method"); } public void test(int i) { System.out.println("In primitive Method"); } public static void main(String args[]) { A a = new A(); a.test(5); } } When I will call test method from main and pass integer argument, then it will call the method which accept primitive type as argument. I just want to know that why it call primitive type method rather than the method who accepts wrapper class as argument? Is there any rule, which java follow to call methods? Thanks,

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  • Does Exchange have ability to run hidden mailboxes?

    - by MadBoy
    Hello, Title of my question may sound a little bit odd but I was thinking if Exchange 2010 or 2007 or any program that would work in conjunction with Exchange has ability to create this structure: Users having their normal mailboxes connected and using them as everyone would in Outlook 2003/2007/2010. Users having additional mailboxes (from old Exchange 2003) attached but hidden on demand of Administrator. For example administrator could easy disable them just like they never been attached making them invisible to users and everyone else. Would be good if such mailboxes could be easily removed out of system (lets say on external drive) by simple step not manual job for 100 mailboxes. Users without ability to copy/move their mails to outside storage (like a local .pst file)? Do you guys have any suggestions on this? I was thinking maybe using public folders but this seems like overkill and not really suited for this. And please don't ask me why I need this type of security (it's not something I requested).

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  • How to set the application path to the running program?

    - by Y_Y
    Hello, I have a program that is executed by another program. The program that is being executed needs files located at its own location [same folder]. If I call myfile.open("xpo.dll") I might get an error because I am not passing the [fullpath + name + extension]. The program that is being executed can vary paths depending on the installation path. Therefore, I was wondering if there is a way to get the application path [where the application is located] and set it so that when another program executes from another path everything might work properly...? [Using C++ without .NET Framework] Thanks.

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  • Setting breakpoint in c# code with ADPlus

    - by Petr Havlicek
    Hello, I am wondering if it is possible to set a breakpoint in C# code using ADPlus. I find several examples of config files but they always works with native code. Like this one: <ADPlus> <Breakpoints> <NewBP> <!-- Set the breakpoint on ExitProcess. --> <Address>kernel32!ExitProcess</Address> <Type>BP</Type> <Actions>FullDump;Stacks;</Actions> <ReturnAction>G</ReturnAction> </NewBP> </Breakpoints> </ADPlus> Something like this would be useful: <Address>MyCSharpClass.SomeMethod</Address>

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  • Problem with dropdown in IE8 Compatibility Mode

    - by bsmith95610
    Hello, I am having a problem with my site in IE8 Compatibility mode. Below is a URL where you get the basic idea of what my websites dropdowns look like. The dropdowns are done in CSS and when you hover over one dropdown the submenu for the dropdown expands under the dropdown to the right of it. It works correctly in Safari, Chrome, Firefox, and normal IE8. But when you go to compatibility mode it isn't working correctly. Any help would be much appreciated. http://jsfiddle.net/h5xZT/28/ Thanks

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  • JavaMe Bluetooth service registration

    - by NoGlue
    Hello, I am trying to develope an application that offers a service via bluetooth. Everything works fine in the emulator but as soon I install it on a real device (6120/X6 Nokia) the service cannot be found. If I search for already registered services such as OBEX they are found. So I think it has something to do with the registration. This is how I register the service, all of this happens in its own thread. try { LocalDevice.getLocalDevice().setDiscoverable(DiscoveryAgent.GIAC); } catch (BluetoothStateException e) { } try { notifier = (StreamConnectionNotifier) Connector.open(m_url); ServiceRecord sr = local.getRecord(notifier); StreamConnection conn = notifier.acceptAndOpen(); } catch (IOException e) { } And this is what m_url looks like: "btspp://localhost:" + 0x1116 + ";name=BlueMatch"; Thanks for your time. Best regards

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  • How to retrieve an url parameter in the Zend Framework ?

    - by ismaelsow
    Hello guys ! I'am trying to retrieve an parameter passed in a url using the zend framework. But of course, it is not working ! My code looks like this : Generating the url : <?php echo $this->url(array('controller' => 'poll', 'action' => 'showresults', 'poll_id' => $poll['_id']), null, true) ?> Retrieving the "poll_id" parameter in showresultsAction() : $request = new Zend_Controller_Request_Http(); $poll_id = $request->getParam('poll_id'); The problem is that $poll_id is NULL. When I do a var_dump of $request-getParams(), it is also NULL. I have glanced trough the Zend Framework doc, but it was not very usefull. Any idea ? Thanks !

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  • How to get the "#" symbol in the :id into the redirect_to method in Rails

    - by Matthias Günther
    Hello, this is a silly questions but I don't understand, why rails isn't evaluating my string as expected. Here is my problem: I want to redirect to an url in the form ~/:controller/index/#_76 redirect_to :action => "index", :id => '#_76' But I'm getting the url in the form: ~/:controller/index/%25_76 and so my anchor for linking to a certain place in the website isn't working. Can someone please explain me, why rails makes this rendering? I think this hase something to do with url encoding. Again thanks for your help, I'm learning every day a little bit more about rails :).

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  • How to adjust a JScrollPane to its contained JTree

    - by spuas
    Hello, here I have a swing size question: I have a JTree which is contained inside a JScrollPane (which is contained in a custom component which extends JXPanel from swingx, but I think that has nothing to do with this question). Doesn't matter how many rows the tree has, the scrollpane is always bigger (the tree is dinamic but not designed to have many rows) but what I would like is the JScrollPane to adjust to the tree initial height and then show the vertical scroll when some of the nodes are expanded. I have tried without setting any size at all, setting tree preferred size to null and setting scrollpane preferred size to null as well but nothing changes. I DO NOT WANT to set the size manually... Is there a way to do this? Thanks

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  • Running a java program in linux terminal with -class path

    - by Arya
    Hello I've been trying for an hour to run the following program with a the postgresql classpath class Test{ public static void main(String[] args){ try { Class.forName("org.postgresql.Driver"); } catch (ClassNotFoundException cnfe) { System.err.println("Couldn't find Postgresql driver class!"); } } } The program compiled fine with the javac command, but I'm having a hard time running it with the postgresql classpath. I have "postgresql-9.0-801.jdbc4.jar" in the same directory as the file and I tried the following, but non of them worked java -classpath ./postgresql-9.0-801.jdbc4.jar Test java -classpath postgresql-9.0-801.jdbc4.jar Test java -classpath "postgresql-9.0-801.jdbc4.jar" Test What am I doing wrong? Regards!

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