Search Results

Search found 28682 results on 1148 pages for 'drop down menu'.

Page 619/1148 | < Previous Page | 615 616 617 618 619 620 621 622 623 624 625 626  | Next Page >

  • MYSQL autoincrement a column or just have an integer, difference?

    - by David19801
    Hi, If I have a column, set as primary index, and set as INT. If I don't set it as auto increment and just insert random integers which are unique into it, does that slow down future queries compared to autincrementing? Does it speed things up if I run OPTIMIZE on a table with its primary and only index as INT? (assuming only 2 columns, and second column is just some INT value) (the main worry is the upper limit on the autoincrement as theres lots of adds and deletes in my table)

    Read the article

  • How big in bytes is a DataRow

    - by JeffreyABecker
    I have a one-time process (hashing all our user passwords) written using datasets. The performance needs improvement so we've profiled the application and found that increasing the 'batch size' of the update will improve performance. I also know that if I load the entire data set into memory the application will start hitting swap and slow down. The question is: how big is a System.Data.DataRow derived class? I'd like to calculate a batch size which I know won't force the application into swap.

    Read the article

  • Should I use an ArrayList or IList

    - by Farstucker
    Im using the .NET framework 1.1 and Im hoping someone could help me implement a dynamic array of objects? A watered-down example of the object I wish use is below. Class CarObj { public string CarName; public string CarYear; } Should I use an ArrayList or do you think it would be better to make a CarList class to implement an IList interface? Is there a performance benefit for one over another?

    Read the article

  • Is there an API available to retrieve raw Wiktionary Data?

    - by Armentage
    I want to build a simple application that looks up words against Wiktionary to see if they exist. Is there a standard API supported by the Wiktionary software that would let me do this? Alternatively, is there any way I can pull down the dictionary data that backs a Wiktionary? There are many international variants who's data I would love to put a different front-end around.

    Read the article

  • storing images in sqlserver using c#

    - by barq
    i want to store images of my employees with thier profiles in sql server database. i have following reservations. whether i should compress images or not if yes please provide me sample code or article how should i retrieve images efficiently, i an afraid of asp.net application performance issue. i think with ten thousand employee records it will halt or slow down

    Read the article

  • acts_as_tree and to_json or from_json

    - by Sohan
    Hello: Does anyone have a solution to convert an acts_as_tree model to json that includes all its nodes? I trued using :include=:children, but that only goes down to one single level. Any idea how to iterate the whole tree?

    Read the article

  • Excel macro, to copy and paste a cell value based on another cell value?

    - by Keziah Dorman
    Hi I shall try to explain clearly what I need to be able to do, here goes: I have an Excel spread sheet 1 with postcodes in column a and a number in column b. I need to create a macro/formula so that it will see the number (i.e 4) and copy and paste the postcode that number of times into sheet 2 column a underneath each other. I need to do this for the next row down etc until it comes to a blank. Sheet 1 A,B DE43PP,3 DE43PQ,8 Sheet 2 A,B DE43PP, DE43PP, DE43PP, Thanks

    Read the article

  • How to check if service is enabled with launchd

    - by spartygw
    I can't figure out how to check from within C/C++ if a service is enabled via launchd. I know I can use launchctl from the command line and am currently executing ' launchctl list myServiceName ' from fork/exec. I've found that boostrap_look_up() might be the way to check this but I can't find enough documentation to condense this down to a simple example. Can you shed light on this? All I need is a small function to test if my service is actually registered and available.

    Read the article

  • How Can I Move the Web Browsers Scrollbar and Style It (CSS)?

    - by ThatMacLad
    Upon visiting the site that I'm currently working on you would immediately notice the fact that a bar placed at the top of your browser follows you down as you scroll through the blogs posts. I was wondering if there was any method which I could use to both shift the scrollbar below the bar rather than beside it and then style the bar to suit the sites style. Image:

    Read the article

  • vim autopopulate file

    - by David Oneill
    Is it possible to have VIM auto populate a file based on the extension? For example, when I open a new .sh file, I would like VIM to automatically type #!/bin/bash as the first line. (This example simplified down to the essentials)

    Read the article

  • What's the best practice in case something goes wrong in Perl code?

    - by Geo
    I saw code which works like this: do_something($param) || warn "something went wrong\n"; and I also saw code like this: eval { do_something_else($param); }; if($@) { warn "something went wrong\n"; } Should I use eval/die in all my subroutines? Should I write all my code based on stuff returned from subroutines? Isn't eval'ing the code ( over and over ) gonna slow me down?

    Read the article

  • Is it standard behavior for this code to throw a NullPointerException?

    - by Eric
    I've had a big problem in some library code, which I've pinned down to a single statement: System.out.println((String) null); Ok, the code doesn't actually look like that, but it certainly calls println with a null argument. Doing this causes my whole applicaio to throw an unexpected NullPointerException. In general, should println throw this exception under that circumstance, or is this non-standard behavior due to a poor implementation of the out instance?

    Read the article

  • How dangerous is e.preventDefault();, and can it be replaced by keydown/mousedown tracking?

    - by yc
    I'm working on a tracking script for a fairly sophisticated CRM for tracking form actions in Google Analytics. I'm trying to balance the desire to track form actions accurately with the need to never prevent a form from not working. Now, I know that doing something like this doesn't work. $('form').submit(function(){ _gaq.push('_trackEvent', 'Form', 'Submit', $(this).attr('action')) }); The DOM unloads before this has a chance to process. So, a lot of sample code recommends something like this: $('form').submit(function(e){ e.preventDefault(); var form = this; _gaq.push('_trackEvent', 'Form', 'Submit', $(this).attr('action')); //...do some other tracking stuff... setTimeout(function(){ form.submit(); }, 400); }); This is reliable in most cases, but it makes me nervous. What if something happens between e.preventDefault();and when I get around to triggering the DOM based submit? I've totally broken the form. I've been poking around some other analytics implementations, and I've noticed something like this: $('form').mousedown(function(){ _gaq.push('_trackEvent', 'Form', 'Submit', $(this).attr('action')); }); $('form').keydown(function(e){ if(e.which===13) //if the keydown is the enter key _gaq.push('_trackEvent', 'Form', 'Submit', $(this).attr('action')); }); Basically, instead of interrupting the form submit, preempting it by assuming that if someone is mousing down or keying down on Enter, than that form is submitted. Obviously, this will result in a certain amount of false positives, but it completely eliminates use of e.preventDefault();, which in my mind eliminates the risk that I might ever prevent a form from successfully submitting. So, my question: Is it possible to take the standard form tracking snippet and prevent it from ever fully preventing the form from submitting? Is the mousedown/keydown alternative viable? Are there any submission cases it may miss? Specifically, are there other ways to end up submitting besides the mouse and the keyboard enter? And will the browser always have time to process javascript before beginning to unload the page?

    Read the article

  • PHP Array Not Working in Function

    - by lemonpole
    Hello all. I'm currently experimenting with arrays in PHP, and I created a fake environment where a team's information will be displayed. $t1 = array ( "basicInfo" => array ( "The Sineps", "December 25, 2010", "lemonpole" ), "overallRecord" => array (0, 0, 0, 0), "overallSeasons" => array ( 1 => array (14, 0, 0), 2 => array (9, 5, 2), 3 => array (12, 4, 0), 4 => array (3, 11, 2) ), "games" => array ( "<img src=\"images/cs.gif\" alt=\"Counter-Strike\" />", "<img src=\"images/cs.gif\" alt=\"Counter-Strike\" />", "<img src=\"images/cs.gif\" alt=\"Counter-Strike\" />", "<img src=\"images/cs.gif\" alt=\"Counter-Strike\" />" ), "seasonHistory" => array ( "Season I", "Season II", "Season III", "Season IV" ), "divisions" => array ( "Open", "Main", "Main", "Invite" ) ); // Displays the seasons the team has been in along // with the record of each season. function seasonHistory() { // Make array variable local-scope. global $t1; // Count the number of seasons. $numrows = count($t1["seasonHistory"]); // Loop through all the variables until // it reaches the last entry made and display // each item seperately. for($v = 0; $v <= $numrows; $v++) { // Echo each season. echo "<tr><td>{$t1["games"][$v]}</td>"; echo "<td>{$t1["seasonHistory"][$v]}</td>"; echo "<td>{$t1["divisions"][$v]}</td></tr>"; } } I have tested several possible problems out and after narrowing them down I have come down to one conclusion and that is my function is not connecting to the array for some reason. I don't know what else to do because I thought making the array global would fix that problem. What works: I can echo $t1["games"][0] on the page I need it to display and it gives me the content. I tried echo $t1["games"][0] INSIDE the function and then calling the function and it doesn't display anything.

    Read the article

  • wordpress adnimistration page

    - by michael
    anyone know of a site that explains how wordpress created its appearances in wordpress (on the backend) i like how the navigation was created and i am trying to drill down to see what makes it tick but its a heck of a mess of code. has anyone launched anything online that you know of explaining how these peices were made? maybe something cleaner. thnx

    Read the article

  • Why is my view not resizing after rotating?

    - by E-Madd
    I'm only supporting the portrait orientation, but both the right-side-up and upside-down versions. Why do my subviews not resize appropriately? There's a status bar sized black space at the top of the view. If I change tabs and come back, it's corrected.

    Read the article

  • How do I generate an Array string from an array in memory (php).

    - by Itay Moav
    I need to create a big array in my code, I have the values in several tables (for easy management). I select it and now I have all the values in an array, in memory in the way I want. My problem, I need to write this array down, into the code. Is there a way to take an array which sits in the memory and translate it into a string "array('g'='h','b'='d'....)" which I can then echo and just copy-paste into my code?

    Read the article

  • UIScrollView not scrolling...

    - by Mark
    I have a UIScrollView which contains many UIImageView's UILabel's etc... the labels are well longer that the UIScrollView, but when I run the app, I cannot click and scroll down... Why might this be? Thanks

    Read the article

< Previous Page | 615 616 617 618 619 620 621 622 623 624 625 626  | Next Page >