Search Results

Search found 16987 results on 680 pages for 'second'.

Page 372/680 | < Previous Page | 368 369 370 371 372 373 374 375 376 377 378 379  | Next Page >

  • Cost to GC of using weak references in C#?

    - by Scott Bilas
    In another question, Stephen C says: A second concern is that there are runtime overheads with using weak references. The obvious costs are those of creating weak references and calling get on them. A less obvious cost is that significant extra work needs to be done each time the GC runs. So what exactly is the cost to the GC of a weak ref? What extra work does it need to do, and how big of a deal is it? I can make some educated guesses, but am interested in the actual mechanics.

    Read the article

  • Mercurial How To Merge 2 Repositories that share a common ancestor but are not clones of the same re

    - by sylvanaar
    I am using hg-subversion, and I have 2 different hg repositories one from our svn trunk, and one from a branch of the trunk. I would like to link them somehow. At some point in the history both Hg repositories will be identical is there some way to join them? In other words is there a way to relate the repositories from within Hg? The technique I am currently using is to just export the second repository over top of the working copy of the revision they share, and then commit that working copy as a branch in Hg, but I lose the history this way. Any advice would be great

    Read the article

  • Cannot do a ncurses overwrite(curscr, savewin) correctly because I ripoffline() before

    - by Costi
    I have a C/ncurses program that I'm debugging/maintaining. This program does ripoffline twice: first, to put a title bar and the second time to put a menu bar on the top of the page. I need to dropdown some menus so I save the screen before I drop down the menus. In the InitMenu function, I have the following code: savewin = newwin (0, 0, 0, 0); overwrite (curscr, savewin); wrefresh(savewin) The problem is that savewin is being copied WITH the menu and the ripped off lines, but it gets drawn on the screen BELOW the rippedoff lines. This duplicates the ripped off lines on the screen. Only realizing where the problem was took me a while. Now, I have no idea how to fix it. Ideally, I would like to copy curscr to savewin without the ripped off lines. Any ideas?

    Read the article

  • Why Date Format in ASP NET MVC Differs when used inside Html Helper?

    - by Marcio Gabe
    Hi, I just came across a very interesting issue. If I use ViewData to pass a DateTime value to the view and then display it inside a textbox, even though I'm using String.Format in the exact same manner, I get different formatting results when using the Html.TextBox helper. <%= Html.TextBox("datefilter", String.Format("{0:d}", ViewData["datefilter"]))%> <input id="test" name="test" type="text" value="<%: String.Format("{0:d}", ViewData["datefilter"]) %>" /> The above code renders the following html: <input id="datefilter" name="datefilter" type="text" value="2010-06-18" /> <input id="test" name="test" type="text" value="18/06/2010" /> Notice how the fist line that uses the Html helper produces the date format in one way while the second one produces a very different output. Any ideas why? Note: I'm currently in Brazil, so the standard short date format here is dd/MM/yyyy.

    Read the article

  • Creating/populating Javascript custom object

    - by Ek0nomik
    I've created an ashx page which is going to serve me an XML document full of basic user information. I'm not sure which is the best way to go about creating and populating my custom javascript object. I've seen them created in two ways: function User() { this.Id; this.FirstName; this.LastName; this.Title; } and var User2 = { Id: null, FirstName: null, LastName: null, Title: null } I could populate each of these by doing something like: //first object User.Id = 1 //second object User2.FirstName = 'John' Is one method of creating the object better than the other?

    Read the article

  • Java variables -> replace? RAM optimization

    - by poeschlorn
    Hi guys, I just wanted to know what happens behind my program when I declare and initialize a variable and later initialize it again with other values, e.g. an ArrayList or something similar. What happens in my RAM, when I say e.g. this: ArrayList<String> al = new ArrayList<String>(); ...add values, work with it and so on.... al = new ArrayList<String>(); So is my first ArrayList held in RAM or will the second ArrayList be stored on the same position where the first one has been before? Or will it just change the reference of "al"? If it is not replaced...is there a way to manually free the RAM which was occupied by the first arraylist? (without waiting for the garbage collector) Would it help to set it first =null? Nice greetings, poeschlorn

    Read the article

  • Garbage collection when compiling to C

    - by Jules
    What are the techniques of garbage collection when compiling a garbage collected language to C? I know of two: maintain a shadow stack that saves all roots explicitly in a data structure use a conservative garbage collector like Boehm's The first technique is slow, because you have to maintain the shadow stack. Potentially every time a function is called, you need to save the local variables in a data structure. The second technique is also slow, and inherently does not reclaim all garbage because of using a conservative garbage collector. My question is: what is the state of the art of garbage collection when compiling to C. Note that I do not mean a convenient way to do garbage collection when programming in C (this is the goal of Boehm's garbage collector), just a way to do garbage collection when compiling to C.

    Read the article

  • VB.NET 2.0 - StackOverflowException when using Thread Safe calls to Windows Forms Controls

    - by LamdaComplex
    I have a Windows Forms app that, unfortunately, must make calls to controls from a second thread. I've been using the thread-safe pattern described on the http://msdn.microsoft.com/en-us/library/ms171728.aspx. Which has worked great in the past. The specific problem I am having now: I have a WebBrowser control and I'm attempting to invoke the WebBrowser.Navigate() method using this Thread-Safe pattern and as a result I am getting StackOverflow exceptions. Here is the Thread-Safe Navigate method I've written. Private Delegate Sub NavigateControlCallback(ByRef wb As WebBrowser, ByVal url As String) Private Sub AsyncNavigate(ByRef wb As WebBrowser, ByVal URL As String) Try If wb.InvokeRequired Then Dim callback As New NavigateControlCallback(AddressOf AsyncNavigate) callback(wb, url) Else wb.Navigate(url) End If Catch ex As Exception End Try End Sub Is there a Thread-Safe way to interact with WinForms components without the side effect of these StackOverflowExceptions?

    Read the article

  • Are Python properties broken?

    - by jacob
    How can it be that this test case import unittest class PropTest(unittest.TestCase): def test(self): class C(): val = 'initial val' def get_p(self): return self.val def set_p(self, prop): if prop == 'legal val': self.val = prop prop=property(fget=get_p, fset=set_p) c=C() self.assertEqual('initial val', c.prop) c.prop='legal val' self.assertEqual('legal val', c.prop) c.prop='illegal val' self.assertNotEqual('illegal val', c.prop) fails as below? Failure Traceback (most recent call last): File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/unittest.py", line 279, in run testMethod() File "/Users/jacob/aau/admissions_proj/admissions/plain_old_unit_tests.py", line 24, in test self.assertNotEqual('illegal val', c.prop) File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/unittest.py", line 358, in failIfEqual (msg or '%r == %r' % (first, second)) AssertionError: 'illegal val' == 'illegal val'

    Read the article

  • Strange tab ordering when creating controls after postback

    - by Crackerjack
    I have a button that opens a panel in a popup window and then performs a postback to retrieve data from the server and render some controls. Some of the controls are textboxes and some are dropdown lists and can be in any order. Everything works fine when tabbing through the textbox controls. But when tabbing from the first dropdown contorl found, the tab order 'gets lost' and it starts tabbing from the first control again. When I tab to the same dropdown list the second time 'round, it correctly tabs to the next control. Does anyone know what might be going on? Example: TextBox1 (Tab -> focus set to 'TextBox2') TextBox2 (Tab -> focus set to 'DropDown1') DropDown1 (Tab -> focus goes back up to 'TextBox1' - wtf?) TextBox3 Update: The TabIndex attribute is set on all controls.

    Read the article

  • What is a good open source job scheduler in Java?

    - by Boaz
    Hi, In an application harvesting (many) RSS feeds, I want to dynamically schedule the feed downloaders based on the following criteria: The speed at which content are generated - source which produce content at a higher rate need to be visited more often. After downloading a feed, its content is analyzed and based on the current rate of publication the next run time is determined for the feed. Note that this is dynamically changing. Sometimes a feed is very active and sometimes it is slow. Every RSS feed should be visited at least once an hour. While the second one is done by most schedulers but the first one is more problematic. What JAVA-based open source scheduler would you recommend for the task? (and why ;) ) Thanks! Boaz

    Read the article

  • Double-tap or two single-taps?

    - by Jaka Jancar
    What is the time limit for two taps to be considered a double-tap, on the iPhone OS? // Edit: Why is this important? In order to handle single-tap and double-tap differently, Apple's guide says to do performSelector...afterDelay with some 'reasonable' interval on first tap (and cancel it later if the second tap is detected). The problem is that if the interval is too short (0.1), the single tap action will be performed even when double-tapping (if relying only on tapCount, that is). If it's too long (0.8), the user will be waiting unnecessarily for the single-tap to be recognized, when there is no possibility for a double-tap. It has to be exactly the correct number, in order to work optimally, but definitely not smaller, or there's a chance for bugs (simultaneous single-tap and double-tap).

    Read the article

  • problem in jquery notify bar on submit form using php or zf

    - by user1400
    hi guys in my application on zend framework i use of 'jQuery Notify Bar' plugin for display messages, i'd like to show message when my form submit ,the other page is opened and notify bar be open until the other page is completely load and even some second more but the problem is that notify bar show for short Moment and when the other page begin to load , notify bar is closed, and the delay property is not effect to that $('#myForm').submit(function(){ $.notifyBar({ html: "Thank you, your settings were updated!", **delay: 20000,** animationSpeed: "normal" }); how to show notify bar in the other page too? thanks

    Read the article

  • Font-face, Raphael and IE8

    - by Sucrenoir
    I am desesperatly trying to get some google font faces to work with Raphael (SVG / VML rendering JavaScript library) on IE8. At first i tried the google fonts code. My second try has been to download and convert the fonts to host my own more complete css. Now the fonts show in the html part of the page (inside a modified bootstrap nav dropdown), but it does not work in the VML canvas (generated by Raphael). Example here : http://beta.yetiprint.com/fr/etiquettes-autocollantes/4-etiquettes-couleur-ronde.html Is it possible to get that working in iE8? Any clue?

    Read the article

  • Data mining logs to locate a bug

    - by gooli
    I'm working on a data distribution application which receives data from a source and distributes that data to multiple target application. After successfully distributing several messages each second for 8 days, it missed a single message and did not deliver it properly to the clients. As I was looking at the logs I tried to find something there that was special for the time the miss happend - either in the data, its rate or some other condition but couldn't find anything. Is there any data mining technique I can use to identify how that specific event differs from other events?

    Read the article

  • Show them the default, and allow them to press escape or Ctrl-Z

    - by cf_PhillipSenn
    I have a table cell, and when the user clicks on it, I replace the contents of the table cell with an input tag with the current contents as the default. But I don't like it's behavior because there's a chance that the user can delete the contexts on the input simply by clicking on it a second time. $('.LastName').live('click', function() { var myText = $(this).text(); $(this).empty().append('<input name="LastName" id="LastName" value="' + myText + '" />'); document.myForm.LastName.focus(); }); Q: How do I give the user a default, plus allow them to press the escape key or Ctrl-Z while in the middle of an edit?

    Read the article

  • Check whether Excel file is Password protected

    - by Torben Klein
    I am trying to open an Excel (xlsm) file via VBA. It may or may not be protected with a (known) password. I am using this code: On Error Resume Next Workbooks.Open filename, Password:=user_entered_pw opened = (Err.Number=0) On Error Goto 0 Now, this works fine if the workbook has a password. But if it is unprotected, it can NOT be opened. Apparently this is a bug in XL2007 if there is also workbook structure protection active. (http://vbaadventures.blogspot.com/2009/01/possible-error-in-excel-2007.html). On old XL2003, supplying a password would open both unprotected and password protected file. I tried: Workbooks.Open filename, Password:=user_entered_pw If (Err.Number <> 0) Then workbooks.open filename This works for unprotected and protected file. However if the user enters a wrong password it runs into the second line and pops up the "enter password" prompt, which I do not want. How to get around this?

    Read the article

  • Django Asynchronous Processing

    - by freyrs
    Hello all, I have a bunch of Django requests which executes some mathematical computations ( written in C and executed via a Cython module ) which may take an indeterminate amount ( on the order of 1 second ) of time to execute. Also the requests don't need to access the database. Right now everything is synchronous ( using Gunicorn with sync worker types ) but I'd like to make this asynchronous and nonblocking. I am very new to asynchronous Django, and so my question is what is the best stack for doing this. Is this sort of process something a task queue is well suited for? Would anyone recommend Tornado + Celery + RabbitMQ, or perhaps something else? Thanks in advance!

    Read the article

  • etree.findall: 'OR'-lookup?

    - by piquadrat
    I want to find all stylesheet definitions in a XHTML file with lxml.etree.findall. This could be as simple as elems = tree.findall('link[@rel="stylesheet"]') + tree.findall('style') But the problem with CSS style definitions is that the order matters, e.g. <link rel="stylesheet" type="text/css" href="/media/css/first.css" /> <style>body:{font-size: 10px;}</style> <link rel="stylesheet" type="text/css" href="/media/css/second.css" /> if the contents of the style tag is applied after the rules in the two link tags, the result may be completely different from the one where the rules are applied in order of definition. So, how would I do a lookup that inlcudes both link[@rel="stylesheet"] and style?

    Read the article

  • .Remove(object) on a List<T> returned from LINQ to SQL compiled query won't delete the Object right

    - by soldieraman
    I am returning two lists from the database using LINQ to SQL compiled query. While looping the first list I remove duplicates from the second list as I dont want to process already existing objects again. eg. //oldCustomers is a List returned by my Compiled Linq to SQL Statmenet that I have added a .ToList() at the end to //Same goes for newCustomers for (Customer oC in oldCustomers) { //Do some processing newCustomers.Remove(newCusomters.Find(nC=> nC.CustomerID == oC.CusomterID)); } for (Cusomter nC in newCustomers) { //Do some processing } DataContext.SubmitChanges() I expect this to only save the changes that have been made to the customers in my processing and not Remove or Delete any of my customers from the database. Correct? I have tried it and it works fine - but I am trying to know if there is any rare case it might actually get removed

    Read the article

  • Counting down to zero in contrast to counting up to length - 1

    - by Helper Method
    Is it recommended to count in small loops (where possible) down from length - 1 to zero instead of counting up to length - 1? 1.) Counting down for (int i = a.length - 1; i >= 0; i--) { if (a[i] == key) return i; } 2.) Counting up for (int i = 0; i < a.length; i++) { if (a[i] == key) return i; } The first one is slightly faster that the second one (because comparing to zero is faster) but is a little more error-prone in my opinion. Besides, the first one could maybe not be optimized by future improvements of the JVM. Any ideas on that?

    Read the article

  • Loading textures in an Android OpenGL ES App.

    - by Omega
    I was wondering if anyone could advise on a good pattern for loading textures in an Android Java & OpenGL ES app. My first concern is determining how many texture names to allocate and how I can efficiently go about doing this prior to rendering my vertices. My second concern is in loading the textures, I have to infer the texture to be loaded based on my game data. This means I'll be playing around with strings, which I understand is something I really shouldn't be doing in my GL thread. Overall I understand what's happening when loading textures, I just want to get the best lifecycle out of it. Are there any other things I should be considering?

    Read the article

  • CSS float column extending over footer

    - by JD
    Hi, I am having a problem with my CSS whereby the right hand column in a 2 column layout is extending beyond the footer. I have tried playing with the clear: both; property but I cannot get it to work.. the second column has the id column2 both columns use the class column. The footer html has the id footerWrapper Both columns and footer are div tags. My CSS (abridged): .column { width: 49%; } #column2 { width: 50%; position: absolute; top: 0px; margin-left: 50%; float: left; } #footerWrapper { background-color: #333333; border-top: 2px #FF6600 solid; color: #666; }

    Read the article

  • Avoid duplicate custom post type posts in multiple loops in Wordpress

    - by christinaaa
    I am running two loops with a custom post type of Portfolio (ID of 3). The first loop is for Featured and the second is for the rest. I plan on having more than 3 Featured posts in random order. I would like to have the Featured ones that aren't displaying in the first loop to show up in my second loop. How can I set this up so there are no duplicate posts? <?php /* Template Name: Portfolio */ get_header(); ?> <div class="section-bg"> <div class="portfolio"> <div class="featured-title"> <h1>featured</h1> </div> <!-- end #featured-title --> <div class="featured-gallery"> <?php $args = array( 'post_type' => 'portfolio', 'posts_per_page' => 3, 'cat' => 3, 'orderby' => 'rand' ); $loop = new WP_Query( $args ); while ( $loop->have_posts() ) : $loop->the_post(); ?> <div class="featured peek"> <a href="<?php the_permalink(); ?>"> <h1> <?php $thetitle = $post->post_title; $getlength = strlen($thetitle); $thelength = 40; echo substr($thetitle, 0, $thelength); if ($getlength > $thelength) echo '...'; ?> </h1> <div class="contact-divider"></div> <p><?php the_tags('',' / '); ?></p> <?php the_post_thumbnail('thumbnail', array('class' => 'cover')); ?> </a> </div> <!-- end .featured --> <?php endwhile; ?> </div> <!-- end .featured-gallery --> <div class="clearfix"></div> </div> <!-- end .portfolio --> </div> <!-- end #section-bg --> <div class="clearfix"></div> <div class="section-bg"> <div class="portfolio-gallery"> <?php $args = array( 'post_type' => 'portfolio', 'orderby' => 'rand'); $loop = new WP_Query( $args ); while ( $loop->have_posts() ) : $loop->the_post(); ?> <div class="featured peek"> <a href="<?php the_permalink(); ?>"> <h1> <?php $thetitle = $post->post_title; $getlength = strlen($thetitle); $thelength = 40; echo substr($thetitle, 0, $thelength); if ($getlength > $thelength) echo '...'; ?> </h1> <div class="contact-divider"></div> <p><?php the_tags('',' / '); ?></p> <a href="<?php the_permalink(); ?>"><?php the_post_thumbnail('thumbnail', array('class' => 'cover')); ?></a> </a> </div> <!-- end .featured --> <?php endwhile; ?> <div class="clearfix"></div> </div> <!-- end .portfolio-gallery --> <div class="clearfix"></div> </div> <!-- end #section-bg --> <?php get_footer(); ?> If possible, could the answer outline how to implement it into my existing code? Thank you. :)

    Read the article

  • Preferred Method Of Application Purchase

    - by Chuck
    This is more of a "programmers" question, but felt that it was technical enough to belong on Stack Overflow instead. I'm launching an application soon that will follow the shareware model of purchase. I've thought about implementing this in a few ways: Limited access to the application until they purchase Full access to the application but expires after 30 day, requiring them to purchase to retain utility. Full access to the application indefinitely, but with a 10-15 second pop-up box on start-up asking them to register -- like mIRC does (or used to do). The method of authentication will be web-based. I'll provide them with an authentication key and they'll put it in the application. Whenever the application boots up, it'll check my web service and determine whether the application is genuine or not. This isn't my question. My question is: Is there a preferred method of implementation? I'd like to piss off the users as little as possible, but I'd also like to get paid for my work.

    Read the article

< Previous Page | 368 369 370 371 372 373 374 375 376 377 378 379  | Next Page >