value chain planning - Page 726

C: Comparing two long integers (very strange)

- by Kyle

Hi, I have following situation (unix) : x is a long and has value 300 y is a long and has value 50000 if (x <= y) printf("Correct."); if (x > y) printf("Ouch."); Now I always get "Ouch". That means the program keeps telling me that 300 is greater than 50000! It only works again when I do if ((int)x <=(int) y) printf("Correct."); if ((int)x > (int)y) printf("Ouch."); So what is wrong with the comparison operators?

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Building my first Javascript Application (jQuery), struggling on something

- by Jason Wells

I'd really appreciate recommendations on the most efficient way to approach this. I'm building a simple javascript application which displays a list of records and allows the user to edit a record by clicking an "Edit" link in the records row. The user also can click the "Add" link to pop open a dialog allowing them to add a new record. Here's a working prototype of this: http://jsfiddle.net/FfRcG/ You'll note if you click "Edit" a dialog pops up with some canned values. And, if you click "Add", a dialog pops up with empty values. I need help on how to approach two problems I believe we need to pass our index to our edit dialog and reference the values within the JSON, but I am unsure how to pass the index when the user clicks edit. It bothers me that the Edit and Add div contents are so similiar (Edit just pre populates the values). I feel like there is a more efficient way of doing this but am at a loss. Here is my code for reference $(document).ready( function(){ // Our JSON (This would actually be coming from an AJAX database call) people = { "COLUMNS":["DATEMODIFIED", "NAME","AGE"], "DATA":[ ["9/6/2012", "Person 1","32"], ["9/5/2012","Person 2","23"] ] } // Here we loop over our JSON and build our HTML (Will refactor to use templating eventually) members = people.DATA; var newcontent = '<table width=50%><tr><td>date</td><td>name</td><td>age</td><td></td></tr>'; for(var i=0;i<members.length;i++) { newcontent+= '<tr id="member'+i+'"><td>' + members[i][0] + '</td>'; newcontent+= '<td>' + members[i][1] + '</td>'; newcontent+= '<td>' + members[i][2] + '</td>'; newcontent+= '<td><a href="#" class="edit" id=edit'+i+'>Edit</a></td><td>'; } newcontent += "</table>"; $("#result").html(newcontent); // Bind a dialog to the edit link $(".edit").click( function(){ // Trigger our dialog to open $("#edit").dialog("open"); // Not sure the most efficient way to change our dialog field values $("#name").val() // ??? alert($()); return false; }); // Bind a dialog to the add link $(".edit").click( function(){ // Trigger our dialog to open $("#add").dialog("open"); return false; }); // Bind a dialog to our edit DIV $("#edit").dialog(); // Bind a dialog to our add DIV $("#add").dialog(); }); And here's the HTML <h1>People</h1> <a href="#" class="add">Add a new person</a>  <div id="result"></div>  <div id="edit"> <form> <p>Name:<br/><input type="text" id="name" value="foo"></p> <p>Age:<br/><input type="text" id="age" value="33"></p> <input type="submit" value="Save" id="submitEdit"> </form> </div>  <div id="add"> <form> <p>Name:<br/><input type="text" id="name"></p> <p>Age:<br/><input type="text" id="age"></p> <input type="submit" value="Save" id="submitEdit"> </form> </div>

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When Returning Json results from a Controller

- by user325142

Can ViewData["SOME VALUE"] be returned also? If not, why?

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Removing an element from an array (PHP)

- by morpheous

I want to remove an element from a PHP array (and shrink the array size). Just looking at the PHP docs, it seems this can be done using array_slice() and array_merge() so I am guessing (off the top of my head) that some combination of array_merge() and array_slice will work. However, array_slice() requires an index (not a key), so I'm not sure how to quickly cobble these functions together for a solution. Has anyone implemented such a function before?. I'm sure it must be only a few lines long, but I cant somehow get my head around it (its been one of those days) ... Actually, I just came up with this cheesy hack when writing up this question.... function remove_from_array(array $in, value) { return array_diff($in, (array)$value); } too ugly? or will it work (without any shocking side effects)?

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What factors should be taken into consideration before buying a computer Moniter (display/screen)?

- by coding crow

I work on computer for most of waking day and have been using a 13.3" laptop. I was planning to buy a good monitor/screen/display for sometime now but was lazy. Now I have developed Computer Vision Syndrome and buying a monitor has become immediate priority. I have spend some time on net and trying to understand what should I buy and why? I could only zero down on the size (20") and LED and looking for advice on many other factors like resolution, pixel density, panel technology and so forth. It will be great help if someone experienced can show shed some light on computer monitor best for the programmers spending 8 to 10 hours in front of the screen.

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How to make href will work on button in IE8

- by bob

I want href will work on type="button"in IE8. <a href="submit.php"><input type="button" value="Submit" class="button" /></a> Other browser working fine but on IE8 the code above not working. How to fix it? Update <form action="submit.php" method="post""> <input type="submit" value="Submit" class="button" /> </form> I know this way can be done. But I want to know other ways how to make it work on IE8 without to have the <form></form>

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Number 0 is not saving to database as a prefix in SQL Server of CHAR data type column

- by gmhk

I am trying to insert an value as '019393' into a table with a CHAR(10) column. It is inserting only '19393' into the database I am implementing this feature in a stored procedure, doing some manipulation like incrementing that number by 15 and saving it back with '0' as the prefix I am using SQL Server database Note: I tried CASTING that value as VARCHAR before saving to the database, but even that did not get the solution Code SELECT @fromBSB = fromBSB, @toBSB = toBSB, @type = Type FROM [dbo].[tbl_REF_SpecialBSBRanges] WHERE CAST(@inputFromBSB AS INT) BETWEEN fromBSB AND toBSB SET @RETURNVALUE = @fromBSB IF(@fromBSB = @inputFromBSB) BEGIN PRINT 'Starting Number is Equal'; DELETE FROM tbl_REF_SpecialBSBRanges WHERE Type = @type AND fromBSB = @fromBSB AND toBSB = @toBSB INSERT INTO [tbl_REF_SpecialBSBRanges] ([Type], [fromBSB], [toBSB]) VALUES(@type, CAST('0' + @fromBSB + 1 AS CHAR), @toBSB) INSERT INTO [tbl_REF_SpecialBSBRanges] ([Type], [fromBSB], [toBSB]) VALUES(@inputBSBName, @inputFromBSB, @inputToBSB) END

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IE8 $('body').width() is 0 on $(window).load()

- by allicarn

On $(document).ready I run through a for loop twice and alert out the body's width ($('body').width();) each time through. I get a value I would expect (ex. 1092). On $(window).load I run through another for loop twice, also alerting out the body's width each time through. I get 0 the first time through (and the page looks completely blank behind the alert), and then a value I would expect the second time through (ex. 1092). This is an issue I am not able to replicate in a stripped-down example, nor any other browser (Chrome, Safari, Firefox, IE9, IE10). Does anyone have any ideas, or other things that I could test for? I am using $(window).load to cut up some divs based on their width, which is based on their font size, which is based on a webfont (which isn't necessarily loaded by the time $(document).ready fires).

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Outlook 2010 Populating a Text Box

- by Turkwise

all! I'll try to be as detailed as possible in describing my predicament. I have a little background knowledge in Visual Basic, but none really in VBA or VBscript in Outlook 2010. I'm working with Outlook 2010. I created a custom form (this is my first time). I have a combo box named ComboBox1 and a text box named TextBox1. I am trying to auto-populate TextBox1 with a number based on the selection made from ComboBox1 (ex. I select Value 1 from ComboBox1 and TextBox1 populates with 124). I made an attempt using this code in the Visual Basic Editor (VBA version 7.0): Sub popBox() If ComboBox1 = "Value 1" Then TextBox1 = "124" End If End Sub My question is what am I doing wrong? Should I be using the VBscript editor, or is using VBA the proper thing to do? Is what I am asking even possible? Thank you all in advance!

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Find largest rectangle containing only zeros in an N×N binary matrix

- by Rajendra

Given an NxN binary matrix (containing only 0's or 1's), how can we go about finding largest rectangle containing all 0's? Example: I 0 0 0 0 1 0 0 0 1 0 0 1 II->0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 1 <--IV 0 0 1 0 0 0 IV is a 6×6 binary matrix; the return value in this case will be Cell 1: (2, 1) and Cell 2: (4, 4). The resulting sub-matrix can be square or rectangular. The return value can also be the size of the largest sub-matrix of all 0's, in this example 3 × 4.

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Correcting an UPDATE statement (and making it more secure!)

- by Jess

I'm trying to a single value in my DB...When I run it through the console, it works correctly (as I'm replacing the variables with numbers and text).. However, My query is not running correctly. It's just prompting a syntax error Here is what I have: "UPDATE books SET readstatus='".$readstatus."' WHERE book_id=".$book_id; This won't work, I also tried doing something like this as I'm told this makes it a bit more secure? : "UPDATE books SET readstatus='{$readstatus}', WHERE read_id='{read_id}'"; This does not prompt any errors, but no change is happeneing to the value in the DB, I'm guessing the syntax is incorrect.

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[jQuery] Descriptions on Hover

- by Nimbuz

<form action=""> <input type="text" value="" class="card-num" /> <input type="text" value="" class="card-cvv2"/> </form> <div class="description"> <p class="card-num">Enter your 16 digit card number</p> <p class="card-cvv2">Enter the 3 digit number at the back of your card</p> </div> All descriptions are hidden initially. But when hovered on an element that has a matching tag, display description? I'd really appreciate any help. Many thanks!

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Grabbing the right record in a drop down from mysql

- by 86Stang

I'm using a form where the user can edit an entry. Everything is populating and all is well with the exception that I can't get the drop down to show the project that they've already assigned the image to. $project_qry = "SELECT * from projects ORDER BY title ASC"; $project_res = mysql_query($project_qry); $project_drop = "<select name=\"project_id\">\n"; while ($row = mysql_fetch_array($project_res)) { if ($project_id == $row[title]) { $project_drop .= "<option value=\"$row[id]\" selected>$row[title]</option>\n"; } else { $project_drop .= "<option value=\"$row[id]\">$row[title]</option>\n"; } } $project_drop .= "</select>\n"; I'm sure it's something devilishly simple but I'm stumped.

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Enable/Disable Input based on selection (jQuery)

- by Nimbuz

<select name="state" class="select" id="state"> <option value="something">Something</option> <option value="other">Other</option> </select> <input type="text" name="province" class="text" id="province" /> jQuery $('#state').change(function () { if ($('#state Other:selected').text() == "Other"){ $('#province').attr('disabled', false); alert(1); } else { alert(2); } }); Doesn't seem to work. I must be doing something wrong.

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Reversing a hash function

- by martani_net

Hi, I have the following hash function, and I'm trying to get my way to reverse it, so that I can find the key from a hashed value. uint Hash(string s) { uint result = 0; for (int i = 0; i < s.Length; i++) { result = ((result << 5) + result) + s[i]; } return result; } The code is in C# but I assume it is clear. I am aware that for one hashed value, there can be more than one key, but my intent is not to find them all, just one that satisfies the hash function suffices. Any ideas? Thank you.

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Preventing user from inserting *

- by user990635

I'm trying to prevent user from inserting * in a textbox. This is what I was trying to do, but here it only detects * if this is the only inserted character. For example texts like: *, etc. When allowed characters are mixed with *, then it cannot detect it. For example inputs such as: *hjh, etc.. and maybe how to make it replace only * with "" and not the whole field? <script type="text/javascript"> function testField(field) { var regExpr = new RegExp("[^*]"); if(!regExpr.test(field.value)) { field.value = ""; } } </script> <input type="text" id="searchGamesKeyword" class="searchGamesTextBox" name="searchGamesKeyword" onblur="testField(this);" />

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[WPF] When Should I Retrieve Values from Textbox?

- by they_soft

Suppose I have a Window with TextBoxes I want to use the values. Right now I'm thinking of either: 1) Updating each associated value once the cursor is out of focus, and once the user presses Ok I start the program 2) Once the user presses Ok, I retrieve all the values at once then start the program I'm not sure which one is better though. First alternative seems more modular, but there's more semantic coupling since I each new box is supposed to be updating its respective value. I realize this isn't all that important, but I'm trying to understand when to centralize and when not to. Other better approachers are appreciated too.

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How to see if type is instance of a class in Haskell?

- by Raekye

I'm probably doing this completely wrong (the unhaskell way); I'm just learning so please let me know if there's a better way to approach this. Context: I'm writing a bunch of tree structures. I want to reuse my prettyprint function for binary trees. Not all trees can use the generic Node/Branch data type though; different trees need different extra data. So to reuse the prettyprint function I thought of creating a class different trees would be instances of: class GenericBinaryTree a where is_leaf :: a -> Bool left :: a -> a node :: a -> b right :: a -> a This way they only have to implement methods to retrieve the left, right, and current node value, and prettyprint doesn't need to know about the internal structure. Then I get down to here: prettyprint_helper :: GenericBinaryTree a => a -> [String] prettyprint_helper tree | is_leaf tree = [] | otherwise = ("{" ++ (show (node tree)) ++ "}") : (prettyprint_subtree (left tree) (right tree)) where prettyprint_subtree left right = ((pad "+- " "| ") (prettyprint_helper right)) ++ ((pad "`- " " ") (prettyprint_helper left)) pad first rest = zipWith (++) (first : repeat rest) And I get the Ambiguous type variable 'a0' in the constraint: (Show a0) arising from a use of 'show' error for (show (node tree)) Here's an example of the most basic tree data type and instance definition (my other trees have other fields but they're irrelevant to the generic prettyprint function) data Tree a = Branch (Tree a) a (Tree a) | Leaf instance GenericBinaryTree (Tree a) where is_leaf Leaf = True is_leaf _ = False left (Branch left node right) = left right (Branch left node right) = right node (Branch left node right) = node I could have defined node :: a -> [String] and deal with the stringification in each instance/type of tree, but this feels neater. In terms of prettyprint, I only need a string representation, but if I add other generic binary tree functions later I may want the actual values. So how can I write this to work whether the node value is an instance of Show or not? Or what other way should I be approaching this problem? In an object oriented language I could easily check whether a class implements something, or if an object has a method. I can't use something like prettyprint :: Show a => a -> String Because it's not the tree that needs to be showable, it's the value inside the tree (returned by function node) that needs to be showable. I also tried changing node to Show b => a -> b without luck (and a bunch of other type class/preconditions/whatever/I don't even know what I'm doing anymore).

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Submit form with our page refresh in Servlet

- by John

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Reversing linked list C

- by user2976389

node *rever(node *root) { node *prev = NULL; node *xnew = NULL; while (root != NULL) { xnew = malloc(sizeof(root)); xnew->value = root->value; xnew->next = prev; prev = xnew; root = root->next; } return xnew; } Hello I wrote this linked list reverse function. However it doesn't work(empty response): I suspect it's because of prev index getting overwritten. Could someone explain me whats going on? I know I could find working code on the internet but I wanna know what am I doing wrong. Thanks

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Wordpress where the "admin_url" is set ?

- by simple

basically need to change the value that - admin_url() returns any idea?

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Drop down box is always 100%

- by danit

I have the following HTML: <div style="30px;"> <table width="100%;"> <tr> <td> <SELECT name="guidelinks"> <OPTION SELECTED value="jex6.htm">Page 1 <OPTION value="jex7.htm">My Cool Page </SELECT> </td> </tr> </table> When this drop down box is displayed the width is 100%, not 30px, can anyone explain why and how to fix this? Unofrtunatly I cant edit the code on the CSS

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Equivalent of %02d with std::stringstream?

- by Andreas Brinck

I wan't to output an integer to a std::stringstream with the equivalent format of printf's %02d. Is there an easier way to achieve this than: std::stringstream stream; stream.setfill('0'); stream.setw(2); stream << value; Is it possible to stream some sort of format flags to the stringstream, something like (pseudocode): stream << flags("%02d") << value;

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Buy iPhone 4 Without Contract: $599 (AT&T) and $699 (Verizon)

- by Gopinath

Purchasing iPhone without a contract is a good option when you are planning to gift it to someone or going to use it outside US. Both AT&T and Verizon lets you iPhone 4 without a contract but this information is buried deep under blurred text in FAQs and agreements. Here is the pricing information of AT&T and Verizon iPhone 4 without contract AT&T iPhone 4 16 GB without contract – $599.99 AT&T iPhone 4 32 GB without contract – $699.99 Verizon iPhone 4 16 GB without contract – $649.99 Verizon iPhone 4 32 GB without contract – $749.99 This information is seen on the bottom of Apple’s iPhone purchase page and on Verizon’s frequently asked questions about the iPhone 4 page. Screenshots embedded below I live in India and I’m happy to know the price at which I can buy an authentic iPhone 4 without contract . Now I can ask my friends to gift an iPhone 4 for me iphone cc image credit: flickr/williamhook This article titled,Buy iPhone 4 Without Contract: $599 (AT&T) and $699 (Verizon), was originally published at Tech Dreams. Grab our rss feed or fan us on Facebook to get updates from us.

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SQLAuthority News – A Successful Performance Tuning Seminar at Pune – Dec 4-5, 2010

- by pinaldave

This is report to my third of very successful seminar event on SQL Server Performance Tuning. SQL Server Performance Tuning Seminar in Colombo was oversubscribed with total of 35 attendees. You can read the details over here SQLAuthority News – SQL Server Performance Optimizations Seminar – Grand Success – Colombo, Sri Lanka – Oct 4 – 5, 2010. SQL Server Performance Tuning Seminar in Hyderabad was oversubscribed with total of 25 attendees. You can read the details over here SQL SERVER – A Successful Performance Tuning Seminar – Hyderabad – Nov 27-28, 2010. The same Seminar was offered in Pune on December 4,-5, 2010. We had another successful seminar with lots of performance talk. This seminar was attended by 30 attendees. The best part of the seminar was that along with the our agenda, we have talked about following very interesting concepts. Deadlocks Detection and Removal Dynamic SQL and Inline Code SQL Optimizations Multiple OR conditions and performance tuning Dynamic Search Condition Building and Improvement Memory Cache and Improvement Bottleneck Detections – Memory, CPU and IO Beginning Performance Tuning on Production Parametrization Improving already Super Fast Queries Convenience vs. Performance Proper way to create Indexes Hints and Disadvantages I had great time doing the seminar and sharing my performance tricks with all. The highlight of this seminar was I have explained the attendees, how I begin doing performance tuning when I go for Performance Tuning Consultations. Pinal Dave at SQL Performance Tuning Seminar SQL Server Performance Tuning Seminar Pinal Dave at SQL Performance Tuning Seminar Pinal Dave at SQL Performance Tuning Seminar SQL Server Performance Tuning Seminar SQL Server Performance Tuning Seminar This seminar series are 100% demo oriented and no usual PowerPoint talk. They are created from my experiences of various organizations for performance tuning. I am not planning any more seminar this year as it was great but I am booked currently for next 60 days at various performance tuning engagements. Reference: Pinal Dave (http://blog.sqlauthority.com) Filed under: Pinal Dave, SQL, SQL Authority, SQL Optimization, SQL Performance, SQL Query, SQL Server, SQL Tips and Tricks, SQL Training, SQLAuthority News, T SQL, Technology

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- by Kyle

- by Jason Wells

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