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  • Using combo boxes with a binding source and multiple tables

    - by Scott Chamberlain
    I have two data tables in a data set for example lets say Servers: | Server | Ip | Users: | Username | Password | ServerToConnectTo | and there is a foreign key on users that points to servers. How do I make a combo box that list all of the servers. Then how do I make the selected server in that combo box be saved in the data set in the ServerToConnect to column.

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  • Using $this when not in object context

    - by Ken
    I'm creating a function to show blog's. So I made a show blog function but it keeps giving "Using $this when not in object context" error Class Blog{ public function getLatestBlogsBig($cat = null){ $sqlString = "SELECT blog_id FROM jab_blog"; if($cat != null) $sqlString .= " WHERE blog_cat = " . $cat; $sqlString .= " ORDER BY blog_id DESC LIMIT 5"; $blog = mysql_query($sqlString); while($id = mysql_result($blog,"blog_id")){ $this->showBlog($id); //Error is on this line } } function showBlog($id,$small = false){ $sqlString = "SELECT blog_id FROM jab_blog WHERE blog_id=" . $id . ";"; $blog = mysql_query($sqlString); if($small = true){ echo "<ul>"; while($blogItem = mysql_fetch_array($blog)){ echo '<a href="' . $_SESSION['JAB_LINK'] . "blog/" . $blogItem['blog_id'] . "/" . SimpleUrl::toAscii($blogItem['blog_title']) .'">' . $blogItem['blog_title'] . '</a></li>'; } echo "</ul>"; }else{ while($blogItem = mysql_fetch_array($blog)){ ?> <div class="post"> <h2 class="title"><a href="<?php echo $_SESSION['JAB_LINK'] . "blog/" . $blogItem['blog_id'] . "/" . SimpleUrl::toAscii($blogItem['blog_title']);?>"><?php echo $blogItem['blog_title'];?></a></h2> <p class="meta"><span class="date">The date implement</span><span class="posted">Posted by <a href="#">Someone</a></span></p> <div style="clear: both;">&nbsp;</div> <div class="entry"> <?php echo $blogItem['blog_content'];?> </div> </div> <?php } } } }

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  • python how to find the median of a list

    - by user3450574
    I'm trying to write a function named median that takes a list as an input and returns the median value of the list. I'm working with Python 2.7.2 The list can be of any size and the numbers are not guaranteed to be in any particular order. If the list contains an even number of elements, the function should return the average of the middle two. This is the code I'm starting with: def median(list): print(median([7,12,3,1,6,9]))

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  • jquery - Getting the second level parent of an element

    - by j-man86
    I am trying to retrieve the parent of an element's parent (grandparent?). I want to find that grandparent, then find a tag in that element, then store that text as a variable to publish elsewhere on the page. I've been trying to use the parent() function but without success. Here's the code I tried: $('.mixPlayCell a').click( function() { var title = $(this).parent().get(0).parent().get(0).text(); alert(title); }); Thanks!

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  • jQuery resize width on firefox

    - by LM35DT
    I'm doing some experiments with jquery n widths for a liquid column and I'm not sure why it isn't working on firefox. It works fine on IE6,7,8 Chrome, Opera(sluggish). I found some articles about firefox not recognizing the .resize attribute but no explanation/solution =\ $(document).ready(function(){ $(midCol).width((window,$(window).width()) - 470) $(window).resize(function(){$(midCol).width((window,$(window).width()) - 470) }) });

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  • to set value parent page's frame from popup.

    - by cem
    I want to set label's value from popup.But label is in frame and I dont know how to achieve it from popup. From parent page,i get this label by following javascript function. But when I use this function in popup page, I cant find topframe.Do u have any solution about how to success it? if (window.parent.document.getElementById('lbl')) { window.parent.document.getElementById('lbl').innerText = sender.getSelectedItem().get_text(); } else { window.parent.frames['topFrame'].document.getElementById('lbl').innerText = sender.getSelectedItem().get_text(); }

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  • Backbone View: Inherit and extend events from parent

    - by brent
    Backbone's documentation states: The events property may also be defined as a function that returns an events hash, to make it easier to programmatically define your events, as well as inherit them from parent views. How do you inherit a parent's view events and extend them? Parent View var ParentView = Backbone.View.extend({ events: { 'click': 'onclick' } }); Child View var ChildView = ParentView.extend({ events: function(){ ???? } });

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  • Thresholding in Matlab

    - by 3babala
    How do I threshold an image to find the local maxes in a robust way? I know I can just look at the data, visually guess at some appropriate h value, and do imextendedmax(I,h) where h is the threshold... but I'm looking for a more robust way to do it in Matlab. I'm pretty new to Matlab and coding so this is all foreign...

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  • how to get the front window in wxwidgets

    - by Quincy
    In wxWidgets how to get the front most windows on mac? I have a document based application, so each window has a document in it, after change focus, I don't know how to get the front most window. I'm looking for a function like wxGetActiveWindow but the above function only works on windows and GTK, not mac

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  • Finding the position of the max element

    - by Faken
    Is there a standard function that returns the position(not value) of the max element of an array of values? For example: say i have an array like this: sampleArray = [1, 5, 2, 9, 4, 6, 3] I want a function that returns the integer of 3 that tells me that sampleArray[3] is the largest value in the array.

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  • C++, LHS state after exception is thrown

    - by aaa
    hi. I am learning C++ exceptions and I would like some clarification of the scenario: T function() throws(std::exception); ... T t = value; try { t = function(); } catch (...) {} if the exception is thrown, what is the state of variable t? unchanged or undefined?

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  • Jquery bind doesnt work on AJAX loaded HTML

    - by atif089
    Hi, This is my jquery code jQuery(document).ready (function() { // post $('.post').bind('mouseenter mouseleave', function() { $(this).filter('.btn').toggleClass('hidden'); }); }); It works great on a normal document. but When I load some HTM: (i.e some divs with .post attributes) using ajax and embed it into my DOM. The above code doesnt work with those divs.

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  • Loosely coupled implicit conversion

    - by ltjax
    Implicit conversion can be really useful when types are semantically equivalent. For example, imagine two libraries that implement a type identically, but in different namespaces. Or just a type that is mostly identical, except for some semantic-sugar here and there. Now you cannot pass one type into a function (in one of those libraries) that was designed to use the other, unless that function is a template. If it's not, you have to somehow convert one type into the other. This should be trivial (or otherwise the types are not so identical after-all!) but calling the conversion explicitly bloats your code with mostly meaningless function-calls. While such conversion functions might actually copy some values around, they essentially do nothing from a high-level "programmers" point-of-view. Implicit conversion constructors and operators could obviously help, but they introduce coupling, so that one of those types has to know about the other. Usually, at least when dealing with libraries, that is not the case, because the presence of one of those types makes the other one redundant. Also, you cannot always change libraries. Now I see two options on how to make implicit conversion work in user-code: The first would be to provide a proxy-type, that implements conversion-operators and conversion-constructors (and assignments) for all the involved types, and always use that. The second requires a minimal change to the libraries, but allows great flexibility: Add a conversion-constructor for each involved type that can be externally optionally enabled. For example, for a type A add a constructor: template <class T> A( const T& src, typename boost::enable_if<conversion_enabled<T,A>>::type* ignore=0 ) { *this = convert(src); } and a template template <class X, class Y> struct conversion_enabled : public boost::mpl::false_ {}; that disables the implicit conversion by default. Then to enable conversion between two types, specialize the template: template <> struct conversion_enabled<OtherA, A> : public boost::mpl::true_ {}; and implement a convert function that can be found through ADL. I would personally prefer to use the second variant, unless there are strong arguments against it. Now to the actual question(s): What's the preferred way to associate types for implicit conversion? Are my suggestions good ideas? Are there any downsides to either approach? Is allowing conversions like that dangerous? Should library implementers in-general supply the second method when it's likely that their type will be replicated in software they are most likely beeing used with (I'm thinking of 3d-rendering middle-ware here, where most of those packages implement a 3D vector).

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  • How can I hash a string to an int using c++?

    - by zebraman
    I have to write my own hash function. If I wanted to just make the simple hash function that maps each letter in the string to a numerical value (i.e. a=1, b=2, c=3, ...), is there a way I can perform this hash on a string without having to first convert it to a c-string to look at each individual char? Is there a more efficient way of hashing strings?

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  • DateTimeZone error: Unknown or bad timezone

    - by Falya
    I am trying to run this script: <?php $d = new DateTime('now', new DateTimeZone('Asia/Kolkata')); $time = $d->format('H:i'); echo $time; ?> but I got this error: Fatal error: Uncaught exception 'Exception' with message 'DateTimeZone::__construct() [<a href='function.DateTimeZone---construct'>function.DateTimeZone---construct</a>]: Unknown or bad timezone (Asia/Kolkata) Though it works well for Asia/Dacca for example. What could be the problem and how to fix it?

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  • Dragging Custom Node in JavaFX

    - by Karussell
    I cannot get it working although I am very close to an acceptable solution. I can drag the Dock if it is only a rectangle. But if I add a node (e.g. an image) to this dock I am not able to get a working solution. Do you have a code snippet, link or other advices for me? Here is my code: public class Dock extends CustomNode { // initialize this with an 64x64 image of your choice // via ImageView { image: Image {..}} public var content: Node[]; public var width = 64; public var height = 64; public var xOffset: Number = 0; public var yOffset: Number = 0; var imgX: Number = 0; var imgY: Number = 0; var distX: Number; var distY: Number; public var rasterX = function (n: Number): Number { var MAX = 4 * 64; if (n < 0) { return 0 } else if (n > MAX) { return MAX } else return n } public var rasterY = rasterX; override protected function create(): Node { Group { // if we place the translate here then the whole dock will flicker //translateX: bind imgX; //translateY: bind imgY; content: [ Rectangle { // ... and here 'content' won't be dragged translateX: bind imgX; translateY: bind imgY; height: bind height width: bind width fill: Color.LIGHTGRAY strokeWidth: 4 stroke: Color.BLACK }, content] onMousePressed: function (e: MouseEvent): Void { xOffset = e.x; yOffset = e.y; // Calculate the distance of the mouse point from the image // top-left corner which will always come out as positive value distX = e.x - imgX; distY = e.y - imgY; } onMouseDragged: function (e: MouseEvent): Void { // Find out the new image postion by subtracting the distance // part from the mouse point. imgX = rasterX(e.x - distX); imgY = rasterY(e.y - distY); } } }

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  • Calling javascript method from from inside object

    - by John
    I am struggling with methods in JavaScript. obj = function(){ this.getMail = function getMail (){ } //Here I would like to run the get mail once but this.getMail() or getMail() wont work } var mail = new obj(); mail.getMail(); How do I make the method in a way that I can run it both inside the object and from the outside Thanks

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  • Extend an entity to create a computed observable that requires a navigation property

    - by Julianyus
    I'm trying to extend an entity to create a computed observable that requires a navigation property: app.domain.indicador = function () { this.ValorMetaActual = ko.computed({ read: function () { console.log(this.ValoresMeta); //navigation property: undefined return 0; }, deferEvaluation: true }, this); }; The problem is that when the observable is created, the navigation property does not yet exist. What could I do to fix this?

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  • typeof for html plugin elements

    - by gf
    When using ECMAScripts typeof on plugin elements (i.e. embed or object), Safari & FireFox return "function": typeof(window.document['myPlugin']) // "function" This can't be influenced on the plugin side, as the browser doesn't call the plugin here. Funny enough, in IE the same line evaluates to "object". Is that simply implementation dependent behaviour as per ECMAScript §11.4.3 or am i missing something here?

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  • How to correct the objection about dymanic Object type by FlexPMD?

    - by sanjoy roy
    I have the code in one of my flex file used as labelFunction in a DataGrid. When I run the FlexPMD to do the code review , it generates objection about the dynamic type object used in method signature "public function getFormattedCreatedTime(item:Object, column:DataGridColumn):String", it suggests to use strongly type object. Does anyone how to rectify it? public function getFormattedCreatedTime(item:Object, column:DataGridColumn):String { var value:Date=item[column.dataField]; return dateFormatter.format(value); } ]] Thanks

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  • problem on strings, tuple strings

    - by suresh
    Write a function, called constrainedMatchPair which takes three arguments: a tuple representing starting points for the first substring, a tuple representing starting points for the second substring, and the length of the first substring. The function should return a tuple of all members (call it n) of the first tuple for which there is an element in the second tuple (call it k) such that n+m+1 = k, where m is the length of the first substring. Complete the definition def constrainedMatchPair(firstMatch,secondMatch,length):

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  • Can a class Extend or Override himself?

    - by EBAGHAKI
    Suppose we have a class. We create an object from the class and when we do the class Extends himself base on the object initialization value.. For example: $objectType1 = new Types(1); $objectType1->Activate(); // It calls an activation function for type 1 $objectType2 = new Types(2); $objectType2->Activate(); // It calls an activation function for type 2 I don't want to use the standard procedure of class extending: class type1 extends types{}

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  • PHP + jQuery - undefined index: , but it still posts successfully?

    - by Ben Bernards
    When inserting a record to a database, the server returns an 'undefined index: category', error, but still posts the successfully... $('#button).click(function(){ var newvendor = $('#input_vendor).val(); newplantcode = $('#input_plantcode).val(); newcategory = $('#input_category).val(); $.post("php/addSite.php", {vendor: newvendor, plant_code: newplantcode, category: newcategory}, // <--- Error on this line, for some reason... function(result){ console.log("server returned : " + result); [ RELOAD THE PAGE ] }

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  • localStorage not working in IE9 and Firefox

    - by maha
    I am working with localStorage. My code is perfectly working in Chrome, but not in IE9 and Firefox. Here is the code: document.addEventListener("DOMContentLoaded", restoreContents, false); document.getElementsByTagName("body")[0].onclick=function(){saveContents('myList','contentMain', event, this);}; function amIclicked(e, eleObject) { alert("amIClicked"); e = e || event; var target = e.target || e.srcElement; alert("target = " + target.id); if(target.id=='pageBody' || target.id=='Save') return true; else return false; } function saveContents(e, d, eveObj, eleObject) { //alert("saveContents"); if (amIclicked(eveObj, eleObject)) { var cacheValue = document.getElementById(e).innerHTML; var cacheKey = "key_" + selectedKey; var storage = window.localStorage; //alert ("cacheKey = " + cacheKey + " ,cacheValue = " + cacheValue); if(typeof(Storage)!=="undifined"){ localStorage.setItem("cacheKey","cacheValue"); } //alert ("Saved!!"); var dd = document.getElementById(d); //document.getElementById("contentMain").style.display == "none"; dd.style.display = "none"; } } function restoreContents(e,k) { //alert("test"); if(k.length < 1) { return; } var mySavedList = localStorage["key_" + k]; if (mySavedList != undefined) { document.getElementById(e).innerHTML = mySavedList; } } <a onclick="ShowContent('contentMain','myList','Sample_1'); return true;" href="#" >Sample 1</a><br/><br/> <a onclick="ShowContent('contentMain','myList','Sample_2'); return true;" href="#" >Sample 2</a><br/><br/> <div style="display:none;display:none;position:absolute;border-style: solid;background-color: white;padding: 5px;"id="contentMain"> <ol id="myList" contenteditable="true"> <li>Enter Content here</li> </ol> <!--<input id="editToggleButton" type="button" value="Edit"/>--> </div> When I debugging in Iexplore Iam getting the error as SCRIPT5007: Unable to get value of the property 'length': object is null or undefined sample_1.html, line 157 character 3 Thanks

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  • jQuery: Need to "refresh" a widget.

    - by Legend
    I am adapting the Coverflow technique to work with a div. The coverflow function (included as a js file in the head section) is here. When I dynamically add a DIV, it doesn't show up in the coverflow. I am wondering if there is a way to add a destroy function to this js file so that whenever a new div add is added, I can call the destroy method and then reinstantiate. Any suggestions on how I should go about doing this?

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