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  • How to call a jquery function from an action method in controller?

    - by Hasan Fahim
    I have a requirement to open a popup from an action method in controller. The action method is basically registering a user. [HttpPost] public ActionResult Register(RegisterModel model) { if (ModelState.IsValid) { MembershipCreateStatus createStatus; Membership.CreateUser(model.UserName, model.Password, model.Email, null, null, true, null, out createStatus); if (createStatus == MembershipCreateStatus.Success) { FormsAuthentication.SetAuthCookie(model.UserName, false /* createPersistentCookie */); //------------------------------------------ //I need to call a jquery function from here //------------------------------------------ return RedirectToAction("Index", "Home"); } else { ModelState.AddModelError("", ErrorCodeToString(createStatus)); } } return View(model); } The jquery function, present in the view, would just make a hidden DIV, visible, and set the opacity, etc, to represent a popup. I need to call such a jquery function from the controller's action method shown above.

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  • Python: How To copy function parameters into object's fields effortlessly ?

    - by bandana
    Many times I have member functions that copy parameters into object's fields. For Example: class NouveauRiches(object): def __init__(self, car, mansion, jet, bling): self.car = car self.mansion = mansion self.jet = jet self.bling = bling Is there a python language construct that would make the above code less tedious? One could use *args: def __init__(self, *args): self.car, self.mansion, self.jet, self.bling = args +: less tedious -: function signature not revealing enough. need to dive into function code to know how to use function -: does not raise a TypeError on call with wrong # of parameters (but does raise a ValueError) Any other ideas? (Whatever your suggestion, make sure the code calling the function does stays simple)

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  • how to diff / align Python lists using arbitrary matching function?

    - by James Tauber
    I'd like to align two lists in a similar way to what difflib.Differ would do except I want to be able to define a match function for comparing items, not just use string equality, and preferably a match function that can return a number between 0.0 and 1.0, not just a boolean. So, for example, say I had the two lists: L1 = [('A', 1), ('B', 3), ('C', 7)] L2 = ['A', 'b', 'C'] and I want to be able to write a match function like this: def match(item1, item2): if item1[0] == item2: return 1.0 elif item1[0].lower() == item2.lower(): return 0.5 else: return 0 and then do: d = Differ(match_func=match) d.compare(L1, L2) and have it diff using the match function. Like difflib, I'd rather the algorithm gave more intuitive Ratcliff-Obershelp type results rather than a purely minimal Levenshtein distance.

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  • How do I call +class methods in Objective C without referencing the class?

    - by TimM
    I have a series of "policy" objects which I thought would be convenient to implement as class methods on a set of policy classes. I have specified a protocol for this, and created classes to conform to (just one shown below) @protocol Counter +(NSInteger) countFor: (Model *)model; @end @interface CurrentListCounter : NSObject <Counter> +(NSInteger) countFor: (Model *)model; @end I then have an array of the classes that conform to this protocol (like CurrentListCounter does) +(NSArray *) availableCounters { return [[[NSArray alloc] initWithObjects: [CurrentListCounter class],[AllListsCounter class], nil] autorelease]; } Notice how I am using the classes like objects (and this might be my problem - in Smalltalk classes are objects like everything else - I'm not sure if they are in Objective-C?) My exact problem is when I want to call the method when I take one of the policy objects out of the array: id<Counter> counter = [[MyModel availableCounters] objectAtIndex: self.index]; return [counter countFor: self]; I get a warning on the return statement - it says -countFor: not found in protocol (so its assuming its an instance method where I want to call a class method). However as the objects in my array are instances of class, they are now like instance methods (or conceptually they should be). Is there a magic way to call class methods? Or is this just a bad idea and I should just create instances of my policy objects (and not use class methods)?

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  • Why do you have to call URLConnection#getInputStream to be able to write out to URLConnection#getOutputStream?

    - by John
    I'm trying to write out to URLConnection#getOutputStream, however, no data is actually sent until I call URLConnection#getInputStream. Even if I set URLConnnection#doInput to false, it still will not send. Does anyone know why this is? There's nothing in the API documentation that describes this. Java API Documentation on URLConnection: http://download.oracle.com/javase/6/docs/api/java/net/URLConnection.html Java's Tutorial on Reading from and Writing to a URLConnection: http://download.oracle.com/javase/tutorial/networking/urls/readingWriting.html import java.io.IOException; import java.io.OutputStreamWriter; import java.net.URL; import java.net.URLConnection; public class UrlConnectionTest { private static final String TEST_URL = "http://localhost:3000/test/hitme"; public static void main(String[] args) throws IOException { URLConnection urlCon = null; URL url = null; OutputStreamWriter osw = null; try { url = new URL(TEST_URL); urlCon = url.openConnection(); urlCon.setDoOutput(true); urlCon.setRequestProperty("Content-Type", "text/plain"); //////////////////////////////////////// // SETTING THIS TO FALSE DOES NOTHING // //////////////////////////////////////// // urlCon.setDoInput(false); osw = new OutputStreamWriter(urlCon.getOutputStream()); osw.write("HELLO WORLD"); osw.flush(); ///////////////////////////////////////////////// // MUST CALL THIS OTHERWISE WILL NOT WRITE OUT // ///////////////////////////////////////////////// urlCon.getInputStream(); ///////////////////////////////////////////////////////////////////////////////////////////////////////// // If getInputStream is called while doInput=false, the following exception is thrown: // // java.net.ProtocolException: Cannot read from URLConnection if doInput=false (call setDoInput(true)) // ///////////////////////////////////////////////////////////////////////////////////////////////////////// } catch (Exception e) { e.printStackTrace(); } finally { if (osw != null) { osw.close(); } } } }

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  • What's the point of the javascript navigator.javaEnabled function?

    - by den shade
    The navigator object has a javaEnabled function that indicates if the browser has javascript support. This seems to be a little odd: If JS is indeed enabled the function will return true, well obviously. If JS is disabled it will return <nothing since it is never run, javaScript is disabled. I must be missing something here, or is it really that useless this function?

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  • Preprocessor #define vs. function pointer - best practice?

    - by Dustin
    I recently started a small personal project (RGB value to BGR value conversion program) in C, and I realised that a function that converts from RGB to BGR can not only perform the conversion but also the inversion. Obviously that means I don't really need two functions rgb2bgr and bgr2rgb. However, does it matter whether I use a function pointer instead of a macro? For example: int rgb2bgr (const int rgb); /* * Should I do this because it allows the compiler to issue * appropriate error messages using the proper function name, * not to mention possible debugging benefits? */ int (*bgr2rgb) (const int bgr) = rgb2bgr; /* * Or should I do this since it is merely a convenience * and they're really the same function anyway? */ #define bgr2rgb(bgr) (rgb2bgr (bgr)) I'm not necessarily looking for a change in execution efficiency as it's more of a subjective question out of curiosity. I am well aware of the fact that type safety is neither lost nor gained using either method. Would the function pointer merely be a convenience or are there more practical benefits to be gained of which I am unaware?

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  • Do I need to specify a return type for an anonymous function in javascript / typescript?

    - by Anne
    I have the following function: $('td:eq(' + iColumn + ') input', oSettings.oApi._fnGetTrNodes(oSettings)) .each(function () { aData.push(this.value); }); In typescript I am getting a message saying: Error 3 Function declared a non-void return type, but has no return expression Why am I getting this message? I can resolve the message by saying "return true". Should I always specify a return type for this?

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  • FF extension. how to show data extracted in a javascript function to the dropdown menu in the browse

    - by encryptor
    I am developing a ff extension. On one menupopup, the onpopupshowing calls a javascript function. Tha JS function extracts a list of names. Now these names have to be displayed in the same popup. How can i get this? Basically i will need to pass the data (just as we use beans in java) to the browser from the JS function. The data can change everytime the popup is called.

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  • May be my example site may answer my question about ajax call... Help me

    - by booota
    Okay I have this ajax call $('.updatecom .registercomplaint').click(function(){ updatecomplaints(); }); This calls the function updatecomplaints() function updatecomplaints() { var tno = $(".updatecom #tno").val(); var status = $(".updatecom #status").val(); if(status=='DONE') { $(".updatecom #con").val(''); } var tname = $(".updatecom #tname").val(); var rg11 = $(".updatecom #crg11").val(); var rg06 = $(".updatecom #crg06").val(); var tvpins = $(".updatecom #tvpins").val(); var jointer = $(".updatecom #jointer").val(); var cquantity = $(".updatecom #conqty").val(); var nooftv = $(".updatecom #tvno").val(); var misc = $(".updatecom #misc").val(); var tcomments = $(".updatecom #tcomments").val(); var con = $(".updatecom #con").val(); //alert(tno+status+tname+rg11+rg06+tvpins+jointer+cquantity+nooftv+misc+tcomments+con); $.ajax( { type: "POST", url: "up_functions.php", data: "ticket="+ tno +"& opt=upcom" +"& status="+ status +"& tname="+ tname +"& rg11="+ rg11 +"& rg06="+ rg06 +"& tvpins="+ tvpins +"& jointer="+ jointer +"& cquantity="+ cquantity +"& nooftv="+ nooftv +"& misc="+ misc +"& tcomments="+ tcomments +"& con="+ con, success: function(response) { alert(response); } }); } here is my up_functions.php $tno = htmlspecialchars(trim($_REQUEST['ticket'])); $status = htmlspecialchars(trim($_REQUEST['status'])); $tname = htmlspecialchars(trim($_REQUEST['tname'])); $rg11 = htmlspecialchars(trim($_REQUEST['rg11'])); $rg06 = htmlspecialchars(trim($_REQUEST['rg06'])); $tvpins = htmlspecialchars(trim($_REQUEST['tvpins'])); $jointer = htmlspecialchars(trim($_REQUEST['jointer'])); $cquantity = htmlspecialchars(trim($_REQUEST['cquantity'])); $nooftv = htmlspecialchars(trim($_REQUEST['nooftv'])); $misc = htmlspecialchars(trim($_REQUEST['misc'])); $tcomments = htmlspecialchars(trim($_REQUEST['tcomments'])); $con = htmlspecialchars(trim($_REQUEST['con'])); $result=$ptr-upcomticketinfo($tno,$status,$tname,$rg11,$rg06,$tvpins,$jointer,$cquantity,$nooftv,$misc,$tcomments,$con); echo $result; and here is my upconticketinfo() php function function upcomticketinfo($tno,$status,$tname,$rg11,$rg06,$tvpins,$jointer,$cquantity,$nooftv,$misc,$tcomments,$con) { if($con!='' || $con!=NULL) { $this-query = "update booking discription set STATUS='$status',CLOSED ON='$con' where TICKET NO='$tno'"; $this-q_result = mysql_query($this-query,$this-conn) or die(mysql_error()); if($this-q_result) { $query = "update tech detail set TECH NAME='$tname',CABLE RG11='$rg11',CABLE RG06='$rg06',TV PINS USED='$tvpins',JOINTER USED='$jointer',CONNECTOR QTY='$cquantity',NO OF TV='$nooftv',MISC='$misc',TECH COMMENTS='$tcomments' where BOOKING='$tno'"; $q_result = mysql_query($query,$this-conn) or die(mysql_error()); if($q_result) { $response = "updated"; } else { $response = "error"; } } else { $response = "error"; } } else { $this-query = "update booking discription set STATUS='$status' where TICKET NO='$tno'"; $this-q_result = mysql_query($this-query,$this-conn) or die(mysql_error()); if($this-q_result) { $query = "update tech detail set TECH NAME='$tname',CABLE RG11='$rg11',CABLE RG06='$rg06',TV PINS USED='$tvpins',JOINTER USED='$jointer',CONNECTOR QTY='$cquantity',NO OF TV='$nooftv',MISC='$misc',TECH COMMENTS='$tcomments' where BOOKING='$tno'"; $q_result = mysql_query($query,$this-conn) or die(mysql_error()); if($q_result) { $response = "updated"; } else { $response = "error"; } } else { $response = "error"; } } return $response; } Question is that, this code is working just fine in IE8 i.e i am using... but it is not working in FF 3.6.3... I have checked each n everything... One thing is that the code works fine on FF too only when i debug the page with firebug debugger. Otherwise the alert in ajax success shows itself with nothing in it... Help me... Goto link text Enter 6628 in the Ticket No. box under Update Complaint Status section... A new form will open. In that form press update... Try it in FF and IE... IE8 shows the results as needed but FF does not...

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  • Within a DLL, how is the function table structured?

    - by Willi Ballenthin
    I've been looking into the implementation of a device library that doesn't explicitly support my operating system. In particular, I have a disassembled DLL, and a fair amount of supporting source code. Now, how is the function table/export table structured? My understanding is that the first structure of the .data section is a table of VRAs. Next is a table of strings linked by index to that first address table. This makes sense to me, as a linker could translate between symbols and addresses. How do functions referenced by ordinals fit into this picture? How does one know which function has such and such ordinal number, and how does the linker resolve this? In other words, given that some other DLL imports SOME_LIBRARY_ordinal_7, how does the linker know which function to work with? Thanks, all! edit More information... Im working with the FTDI libraries, and would like to resolve which function is being invoked. In particular, I see something like: extern FTD2XX_Ordinal_28: near how might I go about determining which function is being referenced, and how does the linker do this?

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  • What is the purpose of this string argument in a JavaScript function?

    - by Adel
    In the following function, there is the line: var username=getCookie("username"); Here's the whole function: function checkCookie() { var username=getCookie("username"); if (username!=null && username!="") { alert("Welcome again " + username); } else { username=prompt("Please enter your name:",""); if (username!=null && username!="") { setCookie("username",username,365); } } What is the point of the "username" argument being passed above? function getCookie(c_name) { var i,x,y,ARRcookies=document.cookie.split(";"); for (i=0;i<ARRcookies.length;i++) { x=ARRcookies[i].substr(0,ARRcookies[i].indexOf("=")); y=ARRcookies[i].substr(ARRcookies[i].indexOf("=")+1); x=x.replace(/^\s+|\s+$/g,""); if (x==c_name) { return unescape(y); } } } The whole code is here Thanks!

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  • how could it works if function is called before it is defined in python?

    - by user2131316
    I was wondering what does if __name__ == "__main__": really do in python, I have the following code in python3: def main(): test(); def test(): print("hello world " + __name__); if __name__ == "__main__": main(); we know that we have to declare a function before we use it, so function call inside of if part works fine, the main() is defined before it is called inside of if statement, but what about the test() function, it is defined after it is called and there is no errors: def main(): test(); def test(): print("hello world " + __name__); so how could it works if the test() function is defined after it is called?

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  • Is there any way to retrieve a float from a varargs function's parameters?

    - by Jared P
    If the function was defined with a prototype which explicitly stated the types of the parameters, eg. void somefunc(int arg1, float arg2); but is implemented as void somefunc(int arg1, ...) { ... } is it possible to use va_arg to retrieve a float? It's normally prevented from doing this because varargs functions have implicit type promotions, like float to double, so trying to retrieve an unpromoted type is unsupported, even though the function is being called with the unpromoted type do to the more specific function prototype. The reason for this is to retrieve arguments of different types at runtime, as part of an obj-c interpreter, where one function will be reused for all different types of methods. This would be best as architecture independent (so that if nothing else the same code works on simulator and on device), although if there is no way to do this then device specific fixes will be accepted.

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  • What time function do I need to use with pthread_cond_timedwait?

    - by Vincent
    The pthread_cond_timedwait function needs an absolute time in a time timespec structure. What time function I'm suppose to use to obtain the absolute time. I saw a lot of example on the web and I found almost all time function used. (ftime, clock, gettimeofday, clock_gettime (with all possible CLOCK_...). The pthread_cond_timedwait uses an absolute time. Will this waiting time affected by changing the time of the machine? Also if I get the absolute time with one of the time function, if the time of the machine change between the get and the addition of the delta time this will affect the affect the wait time? Is there a possibility to wait for an event with a relative time instead?

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  • How to differentiate between method and function in a decorator?

    - by defnull
    I want to write a decorator that acts differently depending on whether it is applied to a function or to a method. def some_decorator(func): if the_magic_happens_here(func): # <---- Point of interest print 'Yay, found a method ^_^ (unbound jet)' else: print 'Meh, just an ordinary function :/' return func class MyClass(object): @some_decorator def method(self): pass @some_decorator def function(): pass I tried inspect.ismethod(), inspect.ismethoddescriptor() and inspect.isfunction() but no luck. The problem is that a method actually is neither a bound nor an unbound method but an ordinary function as long as it is accessed from within the class body. What I really want to do is to delay the actions of the decorator to the point the class is actually instantiated because I need the methods to be callable in their instance scope. For this, I want to mark methods with an attribute and later search for these attributes when the .__new__() method of MyClass is called. The classes for which this decorator should work are required to inherit from a class that is under my control. You can use that fact for your solution. In the case of a normal function the delay is not necessary and the decorator should take action immediately. That is why I wand to differentiate these two cases.

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  • Does the compiler optimize the function parameters passed by value?

    - by Naveen
    Lets say I have a function where the parameter is passed by value instead of const-reference. Further, lets assume that only the value is used inside the function i.e. the function doesn't try to modify it. In that case will the compiler will be able to figure out that it can pass the value by const-reference (for performance reasons) and generate the code accordingly? Is there any compiler which does that?

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  • What happens in memory when calling a function with literal values?

    - by Drise
    Suppose I have an arbitrary function: void someFunc(int, double, char); and I call someFunc(8, 2.4, 'a');, what actually happens? How does 8, 2.4, and 'a' get memory, moved into that memory, and passed into the function? What type of optimizations does the compiler have for situations like these? What if I mix and match parameters, such like someFunc(myIntVar, 2.4, someChar);? What happens if the function is declared as inline?

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  • Move document.ready function to a separate javascript fucntion?

    - by tonsils
    Hi, Is it possible to move the following code within a jQuery document.ready function into a separate javascript function, so that it can be called just like any other javascript function, i.e.: <script type="text/javascript"> $(document).ready(function() { $('div#infoi img[title]').qtip({ position: { adjust: { x:-110, y:0 }, corner: { target: 'bottomLeft', tooltip: 'topMiddle' } }, style: { width: 250, padding: 5, background: '#E7F1FA', color: 'black', textAlign: 'center', border: { width: 3, color: '#65a9d7' }, tip: 'topRight' } }); }); </script> If yes, then how - if not, then that answers my question. Thanks.

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  • how to call a php class function directly using ajax?

    - by payling
    Is it possible to call a php class function DIRECTLY using ajax? Something like below... except ajax... myclass::myfunction(); I've been using the jquery library to work with AJAX. $.get('control.php', {func: funcName, arg1: arg1}); The above is similar to what I'm trying to achieve MINUS the control.php; I'm not sure if this is even possible, but I just thought it would be nice to skip the landing page (control.php) that recieves the funcName. I have a bunch of conditional statements that sort out what class function to run based on the funcName recieved. It seems kind of silly to do this, to have a separate page just to handle function calls. Is there a better way?

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  • C++: static function member shared between threads, can block all?

    - by mhambra
    Hi all, I have a class, which has static function defined to work with C-style extern C { static void callback(foo bar) { } }. // static is defined in header. Three objects (each in separate pthread) are instantiated from this class, each of them has own loop (in class constructor), which can receive the callback. The pointer to function is passed as: x = init_function(h, queue_id, &callback, NULL); while(1) { loop_function(x); } So each thread has the same pointer to &callback. Callback function can block for minutes. Each thread object, excluding the one which got the blocking callback, can call callback again. If the callback function exists only once, then any thread attempting to callback will also block. This would give me an undesired bug, circa is interesting to ask: can anything in C++ become acting this way? Maybe, due to extern { } or some pointer usage?

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