Search Results

Search found 39456 results on 1579 pages for 'why do you'.

Page 379/1579 | < Previous Page | 375 376 377 378 379 380 381 382 383 384 385 386  | Next Page >

• Why does passing arguments to the command in an env invocation not work?

  - by timdisney

  I have a shell script to run node with some arguments like so: #!/usr/bin/env node --harmony_proxies ... This works fine under OS X but in Ubuntu it errors with: /usr/bin/env: node --harmony_proxies: No such file or directory Node is definitely installed and on the PATH since if I remove the --harmony_proxies flag it works fine. Is there some different way of passing arguments when using env in Ubuntu?

  Read the article

• javascript error : periodLookup[periodStr] is undefined, why is it throwing this error?

  - by Mo

  Hi i have this method: set_period_help_text: function(periodInput){ var metric = MonitorMetric.getSelectedMetric(); var periodStr = $('select[name=metric_period]').val(); var datapoints = Number(periodInput.attr("value")); var period = datapoints * periodLookup[periodStr][0]; } var periodLookup = { "OneMinute": [1, "minute"], "FiveMinute": [5, "minute"], "OneHour": [1, "hour"], "OneDay": [1, "day"], "OneWeek": [1, "week"] }; where var periodStr is being retrived from a dropdown menue that only has the values: "OneMinute" "FiveMinute" "OneHour" "OneDay" "OneWeek" i get a java script error when the page loads: periodLookup[periodStr] is undefined [Break on this error] var period = datapoints * periodLookup[periodStr][0];

  Read the article

• Why doesn't my dataset.AcceptChanges update some new rows i've added?

  - by user280139

  I have a dataset in a datagrid with some data in it. Recently I've been asked to add some data to that dataset along with some controls to save the data from. I've added a few textboxes, 1 combobox and 3 textboxes that function as viewing of some datetimepickers that I have to use for dates. I've chosen to use textboxes in combination with datetimepicker because I also need to get and set the value NULL to the database. The problem is that when i call dataset.AcceptChanges() on that dataset that is binded using databinding to those controls it doesn't update the data that's contained in those three textboxes and the combobox. All the new stuff i've added works just fine. txtDataAcordare.DataBindings.Clear(); txtDataAcordare.DataBindings.Add("Text",dtPersonal,"d_DataAcordare"); txtDataInceput.DataBindings.Clear(); txtDataInceput.DataBindings.Add("Text", dtPersonal, "d_DataInceput"); txtDataSfarsit.DataBindings.Clear(); txtDataSfarsit.DataBindings.Add("Text", dtPersonal, "d_DataSfarsit"); this is the code i use to add the databinding. I am then using the datetime picker event CloseUp() to add the date into the textbox: txtDataAcordare.Text = dtpDataAcordare.Text; txtDataAcordare.Visible = true; txtDataAcordare.BringToFront(); After all my fields are completed i call: dtPersonal.AcceptChanges(); and these three textboxes don't get saved! Help, please! dtpDataAcordare.SendToBack();

  Read the article

• Why isn't this message subject encoded properly? (php mail)

  - by Camran

  I use this code to send an email: $headers="MIME-Version: 1.0"."\n"; $headers.="Content-type: text/plain; charset=UTF-8"."\n"; $headers.="From: $name <$email>"."\n"; mail($to, '=?UTF-8?B?'.base64_encode($subject).'?=', $text, $headers, '[email protected]'); If I use special characters Å Ä Ö from the swedish alphabet, they are not encoded properly, so they turn up like ö for ö. However, this doesn't happen if I change the $to variable to a gmail account email, then they are shown correctly. Anybody got any idea? Thanks UPDATE: When I echo $name, the name is displayed correctly, in utf8, with all special chars nicely shown.

  Read the article

• Why do only the controls show up when using HTML5 video on Chrome?

  - by Rob

  I'm using the following HTML5 to display video, but only the controls show up in Chrome. Works fine in Safari and Firefox: <video width="720" height="480" controls="controls" preload="preload"> <source src="<?php bloginfo('url'); ?>/wp-content/uploads/Reel.ogv" type="video/ogg; codecs=theora,vorbis" > <source src="<?php bloginfo('url'); ?>/wp-content/uploads/Reel.mp4" type="video/mp4"> Your browser doesn't support video. </video> Any ideas?

  Read the article

• Why does this simple division between 2 floats not work with java ?

  - by user323186

  System.out.println((26.55f/3f)); or System.out.println((float)( (float)26.55 / (float)3.0 )); etc. returns the result 8.849999. not 8.85 as it should. Can anyone explain this or should we all avoid using floats?

  Read the article

• Why is Python 3.1 throwing a SyntaxError when printing after loop? [resolved]

  - by bubersson

  Hi, I'm trying to run this snippet in Python 3.1 console and I'm getting SyntaxError: >>> while True: ... a=5 ... if a<6: ... break ... print("hello") File "<stdin>", line 5 print("hello") ^ SyntaxError: invalid syntax >>> (This is just shortened code to make a point.) Am I missing something? Is there some other Magic I don't know about? Thanks for your help (since this is my first StackOverflow question and I'm not a native English speaker)

  Read the article

• Why the function from immediate parent is called and not from grandparent class. Is this called func

  - by sandeep

  class A { public: void test () { cout<<"In A"; } }; class B :public A { public: void test () { cout<<"In B"; } }; class C : public B { public: int c; }; int main() { C c; c.test(); } The result is: In B...

  Read the article

• Why subtract a value from itself (x - x) in Python?

  - by endolith

  In NumPy functions, there are often initial lines that do checking of variable types, forcing them to be certain types, etc. Can someone explain the point of these lines? What does subtracting a value from itself do? t,w = asarray(t), asarray(duty) w = asarray(w + (t-t)) t = asarray(t + (w-w))

  Read the article

• Why do we make a copy of final instance variable in a method in Java?

  - by PRK

  For instance: private final Object o; public void doSomething(){ final Object local = this.o; //access methods of local; } This practice is followed in lots of java classes (such as ArrayBlockingQueue). What's the benefit of this?

  Read the article

• Why is the page still caching even after the no-cache headers have been sent?

  - by Matthew Grasinger

  I've done a ton of research on this and have asked many people with help and still no success. Here are the details... I'm involved in developing a website that pulls data from various data files, combines them in a temp .csv file, and then is graphed using a popular graphing library: dygraphs. The bulk of the website is written in PHP. The parameters that determine the data that is graphed are stored in the users session, the .csv is named after the users session and available for download, and then the .csv file is written in a script that passes it to the dygraphs object. And we've found, even with the no-cache headers sent: header("Cache-Control: no-cache, must-revalidate"); header("Expires: Sat, 26 Jul 1997 05:00:00 GMT"); Many users experience in the middle of a session, (if enough different graphs are generated) the page displaying an older, static rendering of the page (data they had graphed earlier in the session) as if it were cached and loaded instead of getting a new request. It only gets weirder though: I've checked using developer tools in both Firefox and Chrome and both browsers are receiving the no-cache headers just fine; Even when the problem occurs if you view the page source, the source is the correct content (a table/legend is also dynamically created using php, the source shows the correct table, but what is rendered is older content); the page begins to render correctly until the graph is about to be display, and then shows the older content; the older content displays as if it were a completely static overlay--the cached graph does not have the same dynamic features (roll over data point display, zoom and pan, etc.) And it is as if the correct page were somewhere beneath it (the download button for the csv file moves depending on how large the table is. The older, static page does nothing if you click the download .csv button, but if you can manage to find the one in the page beneath it you can click and still download the .csv. The data in the .csv is correct) It is one of the strangest things I've seen in development thus far. Some other relevant facts are that all the problems I've personally experience occurred while I was using Chrome. Non of these symptoms have been reported by Firefox users. IE users have had the same problems (IE users are forced to use chrome frame). I'm at my wits end at this point. We've sent the php headers; we've tried setting the cache profile for php on IIS as "DisableCache" (or whatever); we've tried sending a random query string to the results page; we've tried all the appropriate meta tags--all with no success.

  Read the article

• Why there is no static structs in C#, but static methods within them exists?

  - by sfedorov1982

  // OK struct MyStruct { static void Foo() { } } // Error static struct MyStruct { }

  Read the article

• F# why my recursion is faster than Seq.exists?

  - by user38397

  I am pretty new to F#. I'm trying to understand how I can get a fast code in F#. For this, I tried to write two methods (IsPrime1 and IsPrime2) for benchmarking. My code is: // Learn more about F# at http://fsharp.net open System open System.Diagnostics #light let isDivisible n d = n % d = 0 let IsPrime1 n = Array.init (n-2) ((+) 2) |> Array.exists (isDivisible n) |> not let rec hasDivisor n d = match d with | x when x < n -> (n % x = 0) || (hasDivisor n (d+1)) | _ -> false let IsPrime2 n = hasDivisor n 2 |> not let SumOfPrimes max = [|2..max|] |> Array.filter IsPrime1 |> Array.sum let maxVal = 20000 let s = new Stopwatch() s.Start() let valOfSum = SumOfPrimes maxVal s.Stop() Console.WriteLine valOfSum Console.WriteLine("IsPrime1: {0}", s.ElapsedMilliseconds) ////////////////////////////////// s.Reset() s.Start() let SumOfPrimes2 max = [|2..max|] |> Array.filter IsPrime2 |> Array.sum let valOfSum2 = SumOfPrimes2 maxVal s.Stop() Console.WriteLine valOfSum2 Console.WriteLine("IsPrime2: {0}", s.ElapsedMilliseconds) Console.ReadKey() IsPrime1 takes 760 ms while IsPrime2 takes 260ms for the same result. What's going on here and how I can make my code even faster?

  Read the article

• Why hashCode() returns the same value for a object in all consecutive executions?

  - by Vijay Shanker

  Hi, I am trying some code around object equality in java. As I have read somewhere hashCode() is a number which is generated by applying the hash function. Hash Function can be different for each object but can also be same. At the object level, it returns the memory address of the object. Now, I have sample program, which I run 10 times, consecutively. Every time i run the program I get the same value as hash code. If hashCode() function returns the memory location for the object, how come the java(JVM) store the object at same memory address in the consecutive runs? Can you please give me some insight and your view over this issue?

  Read the article

• Why would ftp_connect() fail on production server if it works elsewhere for connecting to the same F

  - by letseatfood

  I have a script that uses ftp_connect() among other FTP PHP functions for uploading a file. ftp_connect() works when executed on my local development server for connecting to a remote FTP server. The same script, when executed on the remote server does not work for connecting to the exact same FTP server. Could somebody please point me in the right direction? Thanks!

  Read the article

• Why do I get a Javascript error when validating a hidden field?

  - by ProgrammingPope

  I have a custom control and I am trying to validate a hidden field. The validation works fine but I am getting the following Javascript error every time (output from Firebug): Error: element is null Code: var currentClassName = ' ' + WebForm_TrimString(element.className) + ' '; URL: http://localhost:58462/WebResource.axd?d=...

  Read the article

• Programing Help!! why isn't this working?

  - by dodo

  Post edited to remove porn spam.

  Read the article

• Why is one query consistently ~25ms faster than another in postgres?

  - by Emory

  A friend wrote a query with the following condition: AND ( SELECT count(1) FROM users_alerts_status uas WHERE uas.alert_id = context_alert.alert_id AND uas.user_id = 18309 AND uas.status = 'read' ) = 0 Seeing this, I suggested we change it to: AND NOT EXISTS ( SELECT 1 FROM users_alerts_status uas WHERE uas.alert_id = context_alert.alert_id AND uas.user_id = 18309 AND uas.status = 'read' ) But in testing, the first version of the query is consistently between 20 and 30ms faster (we tested after restarting the server). Conceptually, what am I missing?

  Read the article

• What is your favourite language, why, what do you dislike about this language, and how might you fix

  - by jrtc27

  The title says it all! I am curious, as I only know .NET and Obj-C, and I am not sure what other languages are good to learn!

  Read the article

• Why can I not echo out the value from an input text?

  - by user3684783

  I am using Wordpress to do an auction website. Here is what the code looks like <form method="post" action="<?php echo ProjectTheme_post_new_with_pid_stuff_thg($pid, '1');?>"> <?php do_action('ProjectTheme_step1_before_title'); ?> <!--////////// Project Title /////////////--> <li> <h2><?php echo __('Your Project Title', 'ProjectTheme'); ?>: <img src="../../images/help-icon.png" width="16" height="16" id="showhelp1"/></h2> <div id="help1">Your Project Title should be informative and brief.</div> <p><input type="text" style="width:90%;" class="do_input" name="project_title" value="Enter an informative & brief title..." onfocus="this.value = this.value=='Enter an informative & brief title...'?'':this.value;" onblur="this.value = this.value==''?'Enter an informative & brief title...':this.value;" /></p> <input type="submit" class="post-button" name="project_submit1" value="<?php _e("Next Step", 'ProjectTheme'); ?> &raquo;" /> </form> I am using a step by step form for users to fill in and I wanted to do a preview page, however I tried to use: if(isset($_POST['project_submit1'])){ $Name = $_POST['project_title']; echo "$Name"; } It shows up nothing.

  Read the article

• Why would Mathematica break normal scoping rules in Module?

  - by Davorak

  As was pointed out in a recent post scoping does not work as expected inside of Module. An example from that thread is: Module[{expr}, expr = 2 z; f[z_] = expr; f[7]] (*2 z$1776*) But the following works as almost as expected. Module[{expr}, expr = 2 z; Set@@{f[z_], expr}; f[7]] (*14*) What language design consideration made wolfram choose this functionality?

  Read the article

• why winform using external dll(VC) and ocx(VC) control can only import one?

  - by jack

  we have a .net framework application with a vc dll and a vc ocx, and now if we only import one dll ,it is ok, but when we import both, it will pop a messagebox saying: Debug Assertion Failed! and i studied the child module of our application that import the vc dll, i found after the framework import vc ocx and initialize , then the function LoadLibrary in our module importing the vc dll would return 0, that means memory limited or call improperly, i use getlasterror() the error code is 1114. so it is very frustrated ,hope someone can help me.

  Read the article

• Why use one dimensional array instead of a two dimensional arrray?

  - by user3869145

  I was doing some work handling a lot of information and my partner told me that I was using too many matrices to manipulate the variables of the problem. The idea was to use one dimension arrays int a[] instead of the 2 dimensional arrays int b[][], to save memory and processing speed of the algorithm. How certain is that this change will accelerate the speed of execution or compilation of my code in c ++?

  Read the article

• Why does this sql code give error 1066 (Not unique table/alias: ‘customer)?

  - by aadersh patel

  SELECT customer.id, customer.firstName, account.id FROM customer, account INNER JOIN customer ON customer.id = account.customerId ORDER BY customer.id appologies for the poor editing...

  Read the article

• Why whould I need to maintain the url like "en.some.com|| fr.some.com" ?

  - by simple

  What are the benefits to maintain the nice urls for multi lingual sites? I understand that it has to do something with SEO, but what exactly?

  Read the article

< Previous Page | 375 376 377 378 379 380 381 382 383 384 385 386  | Next Page >