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• HTML CSS two columns

  - by Marki

  If my HTML says something along the following <div class="container"> <div class="element"> </div> <div class="element"> </div> [...] <div class="element"> </div> </div> is it then possible to align those elements as if they were in a two-column table? I.e. with 7 elements there would be 4 rows, with the last row only having one element. (The elements themselves have NO special classes or ids like right,left,etc.)

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• Groovy/Grails Using WSClient to consume .net web service

  - by ROb

  I'm pretty new to both Grails/Groovy/Web services and i'm consuming a .net web service .. I have some code connects to the service using grails WS-client plugin : WebService webService def result = { def wsdl = ApplicationHolder.application.parentContext.getResource('WEB-INF/productsSoap.wsdl') def proxy = webService.getClient(wsdl.getURL().toString()) def productTypeListResponse = proxy.ProductTypeList() } I also used soapUI to examine the data returned from the web service which gave .. <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Body> <ProductTypeListResponse xmlns="http://tempuri.org/"> <ProductTypeListResult> <xs:schema id="ProductTypeListResult" xmlns="" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata"> <xs:element name="ProductTypeListResult" msdata:IsDataSet="true" msdata:UseCurrentLocale="true"> <xs:complexType> <xs:choice minOccurs="0" maxOccurs="unbounded"> <xs:element name="ProductTypeListResult"> <xs:complexType> <xs:sequence> <xs:element name="PRD_TypeId" type="xs:int" minOccurs="0"/> <xs:element name="PRD_TypeName" type="xs:string" minOccurs="0"/> <xs:element name="PRD_Type" type="xs:string" minOccurs="0"/> </xs:sequence> </xs:complexType> </xs:element> </xs:choice> </xs:complexType> </xs:element> </xs:schema> <diffgr:diffgram xmlns:msdata="urn:schemas-microsoft-com:xml-msdata" xmlns:diffgr="urn:schemas-microsoft-com:xml-diffgram-v1"> <ProductTypeListResult xmlns=""> <ProductTypeListResult diffgr:id="ProductTypeListResult1" msdata:rowOrder="0"> <PRD_TypeId>2</PRD_TypeId> <PRD_TypeName>ProdType2</PRD_TypeName> <PRD_Type>S</PRD_Type> </ProductTypeListResult> <ProductTypeListResult diffgr:id="ProductTypeListResult2" msdata:rowOrder="1"> <PRD_TypeId>3</PRD_TypeId> <PRD_TypeName>ProdType3</PRD_TypeName> <PRD_Type>C</PRD_Type> </ProductTypeListResult> <ProductTypeListResult diffgr:id="ProductTypeListResult3" msdata:rowOrder="2"> <PRD_TypeId>4</PRD_TypeId> <PRD_TypeName>ProdType4</PRD_TypeName> </ProductTypeListResult> </ProductTypeListResult> </diffgr:diffgram> </ProductTypeListResult> </ProductTypeListResponse> which is a .net dataset .. So my question is how do i get at the information using my productTypeListResponse ? Can anyone give me a pointer ?

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• Implementing union of Set using basic java array

  - by lupindeterd

  Note: This is an assignment. Hi, Continuing with my Set implementation using Java basic array, I'm now struggling with the 3 to last function namely the union. import java.io.*; class Set { private int numberOfElements = 0; private String[] setElements = new String[5]; private int maxNumberOfElements = 5; // constructor for our Set class public Set(int numberOfE, int setE, int maxNumberOfE) { int numberOfElements = numberOfE; String[] setElements = new String[setE]; int maxNumberOfElements = maxNumberOfE; } // Helper method to shorten/remove element of array since we're using basic array instead of ArrayList or HashSet from collection interface :( static String[] removeAt(int k, String[] arr) { final int L = arr.length; String[] ret = new String[L - 1]; System.arraycopy(arr, 0, ret, 0, k); System.arraycopy(arr, k + 1, ret, k, L - k - 1); return ret; } int findElement(String element) { int retval = 0; for ( int i = 0; i < setElements.length; i++) { if ( setElements[i] != null && setElements[i].equals(element) ) { return retval = i; } retval = -1; } return retval; } void add(String newValue) { int elem = findElement(newValue); if( numberOfElements < maxNumberOfElements && elem == -1 ) { setElements[numberOfElements] = newValue; numberOfElements++; } } int getLength() { if ( setElements != null ) { return setElements.length; } else { return 0; } } String[] emptySet() { setElements = new String[0]; return setElements; } Boolean isFull() { Boolean True = new Boolean(true); Boolean False = new Boolean(false); if ( setElements.length == maxNumberOfElements ){ return True; } else { return False; } } Boolean isEmpty() { Boolean True = new Boolean(true); Boolean False = new Boolean(false); if ( setElements.length == 0 ) { return True; } else { return False; } } void remove(String newValue) { for ( int i = 0; i < setElements.length; i++) { if ( setElements[i].equals(newValue) ) { setElements = removeAt(i,setElements); } } } int isAMember(String element) { int retval = -1; for ( int i = 0; i < setElements.length; i++ ) { if (setElements[i] != null && setElements[i].equals(element)) { return retval = i; } } return retval; } void printSet() { for ( int i = 0; i < setElements.length; i++) { System.out.println("Member elements on index: "+ i +" " + setElements[i]); } } String[] getMember() { String[] tempArray = new String[setElements.length]; for ( int i = 0; i < setElements.length; i++) { if(setElements[i] != null) { tempArray[i] = setElements[i]; } } return tempArray; } Set union(Set x, Set y) { String[] newtemparray = new String[x.getLength]; newtemparray = x.getMember; return x; } } // This is the SetDemo class that will make use of our Set class class SetDemo { public static void main(String[] args) { //get input from keyboard BufferedReader keyboard; InputStreamReader reader; String temp = ""; reader = new InputStreamReader(System.in); keyboard = new BufferedReader(reader); try { System.out.println("Enter string element to be added" ); temp = keyboard.readLine( ); System.out.println("You entered " + temp ); } catch (IOException IOerr) { System.out.println("There was an error during input"); } /* ************************************************************************** * Test cases for our new created Set class. * ************************************************************************** */ Set setA = new Set(1,10,10); setA.add(temp); setA.add("b"); setA.add("b"); setA.add("hello"); setA.add("world"); setA.add("six"); setA.add("seven"); setA.add("b"); int size = setA.getLength(); System.out.println("Set size is: " + size ); Boolean isempty = setA.isEmpty(); System.out.println("Set is empty? " + isempty ); int ismember = setA.isAMember("sixb"); System.out.println("Element six is member of setA? " + ismember ); Boolean output = setA.isFull(); System.out.println("Set is full? " + output ); setA.printSet(); int index = setA.findElement("world"); System.out.println("Element b located on index: " + index ); setA.remove("b"); setA.emptySet(); int resize = setA.getLength(); System.out.println("Set size is: " + resize ); setA.printSet(); Set setB = new Set(0,10,10); Set SetA = setA.union(setB,setA); } } Ok the method in question will be the implementation of union. As such this: Set union(Set x, Set y) { String[] newtemparray = new String[x.getLength]; newtemparray = x.getMember; return x; } I got this error: symbol : variable getLength location: class Set String[] newtemparray = new String[x.getLength]; ^ d:\javaprojects\Set.java:122: cannot find symbol symbol : variable getMember location: class Set newtemparray = x.getMember; ^ 2 errors My approach for union would be: *) create temporary array of string with size of the object x length. *) store object x members to temporary array by looping the object and calling the getMember *) loop object y members and check if element exist against temporary array. *) discard if it exist/add if it is not there *) return obj x with the union array. thanks, lupin

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• Simple Expand/Collapse divs > JQuery?

  - by Scott B

  I need to add some accordian style expand/collapse handles to a series of parent container divs in my application. Is this something that's too simple for a library like jquery? Example: <div class="handleDiv"> expand | collapse <div>child element</div> <div>child element</div> </div> <div class="handleDiv"> expand | collapse <div>child element</div> <div>child element</div> </div>

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• How to validate an xml with repeating child elements

  - by gsk

  I have an xml document with three child elements repeating in any order. I had element in the xsd because of which the xml doesn't get validated. I can not use because the elements occur more than once. Kindly help me on this. Here is the xml <Trailer> <TrailerField name="SegmentLabelOne" length="4" type="String">TSTS</TrailerField> <TrailerField name="SegmentLabelTwo" length="2" type="String">00</TrailerField> <CountItem length="10" type="Numeric">MT</CountItem> <TrailerField name="SegmentLabelThree" length="2" type="String">01</TrailerField> <CountItem length="10" type="Numeric">MA</CountItem> <TrailerField name="SegmentLabelFour" length="2" type="String">02</TrailerField> <TrailerField name="FilerOne" length="65" type="String"> </TrailerField> </Trailer> And here is the xsd <xsd:complexType name="TrailerSegment"> <xsd:sequence> <xsd:element name="NameOfElement" minOccurs="0" maxOccurs="unbounded"> <xsd:complexType> <xsd:simpleContent> <xsd:extension base="xsd:string"> <xsd:attribute name="name" type="xsd:string"></xsd:attribute> </xsd:extension> </xsd:simpleContent> </xsd:complexType> </xsd:element> <xsd:element name="CountItem" minOccurs="0" maxOccurs="unbounded"> <xsd:complexType> <xsd:simpleContent> <xsd:extension base="xsd:string"> <xsd:attribute name="length" type="xsd:string"></xsd:attribute> <xsd:attribute name="type" type="xsd:string"></xsd:attribute> </xsd:extension> </xsd:simpleContent> </xsd:complexType> </xsd:element> <xsd:element name="TrailerField" minOccurs="0" maxOccurs="unbounded"> <xsd:complexType> <xsd:simpleContent> <xsd:extension base="xsd:string"> <xsd:attribute name="name" type="xsd:string"></xsd:attribute> <xsd:attribute name="length" type="xsd:string"></xsd:attribute> <xsd:attribute name="type" type="xsd:string"></xsd:attribute> </xsd:extension> </xsd:simpleContent> </xsd:complexType> </xsd:element> </xsd:sequence> </xsd:complexType>

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• Typo3 sitemap with images?

  - by Midday

  How can my Sitemap content element include images?

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• How to send a list of object from my MainPage.xaml to another page

  - by LivingThing

  When navigating to another page how can i make my list of object available to another page. for example in my mainpage.xaml var data2 = from query in document.Descendants("weather") select new Forecast { date = (string)query.Element("date"), tempMaxC = (string)query.Element("tempMaxC"), tempMinC = (string)query.Element("tempMinC"), weatherIconUrl = (string)query.Element("weatherIconUrl"), }; forecasts = data2.ToList<Forecast>(); .... NavigationService.Navigate(new Uri("/WeatherInfoPage.xaml", UriKind.Relative)); and then in my other class, i want to make it available so that i can use it like this private void AddPageItem(List<Forecast> forecasts) { .. }

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• XSD NewDataSet Namespace?

  - by Ian

  I'm running XSD on an XML file and getting something strange. Depending on the depth of elements it produces a 'NewDataSet' element which will then is prefixed in Visual Studio to my auto-generated classes which is something I don't want. I've got quite a complex structure and am just trying to add a simple version element or attribute which is causing the problem. The simplest demo I could come up with is this. <A> <B>Text</B> </A> Running this through XSD says there is an element called 'NewDataSet' which may or may not appear and will prefix namespaces. <A> <B> <C>Text</C> </B> </A> This example works as expected and there is no magic 'NewDataSet' element in the generated XSD file.

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• How to identify HTML elements (in javascript) in a browser agnostic fashion

  - by gatapia

  Hi All, I need to identify all html elements on a page in a browser agnostic fashion. What I am basically doing is using mouse events to record clicks on the page. I need to record which element was clicked. So I add a mouse down listener to the document.body element. And on mouse down I get the element under the mouse. Lets say its a div. I then use the index of that div inside the document.getElementsByTagName('*') nodelist and the nodeName ('div') to identify that div. A sample element id would be div45 which means its a div and its the 45th element in the '*' nodelist. This is all fine and good until I use IE which gives me different indexes. So div45 in FireFox may be div47 in IE. Anyone have any ideas? I just need the id of all elements on the page to be the same in any browser, perhaps indexing is not good enough but I really don't have any more ideas. Thanks Guido

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• Where UnityContainerElement in Unity 2?

  - by TheAbdalla

  I was in Unity 1.2, use the following code: UnityConfigurationSection UnitySection = (UnityConfigurationSection)ConfigurationManager.GetSection("Unity"); Dictionary<string, IUnityContainer> Containers = new Dictionary<string, IUnityContainer>(); foreach (UnityContainerElement element in UnitySection.Containers) { IUnityContainer container = new UnityContainer(); Containers.Add(element.Name, container); element.Configure(Containers[element.Name]); } but, I couldn't do so in the Unity 2.0 beta2, because The class 'UnityContainerElement' does not exist in Unity 2 beta2. How can I do this in the new version?

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• Asp.net with RegularExpression problem

  - by Eyla

  Greetings, I'm try to do valdation textbox input to valdate a phone number. I have a asp.net textbox and checkbox. the defualt is to validate a us phone number and when I check the checkbox I should change the RegularExpression and error message to validate an international phone using my own RegularExpression. I have no problem to validate the international phone but the problem is when validating the usa phone number I'm always getting error message that it is invalde phone number. I used diffrent RegularExpression but did not work. Please look at my code and davice me. Regards, ! ..................... ASP.net Code ..................... <%@ Page Language="C#" MasterPageFile="~/Master.Master" AutoEventWireup="true" CodeBehind="UpdateContact.aspx.cs" Inherits="IMAM_APPLICATION.UpdateContact" Title="Untitled Page" %> <%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="cc1" %> <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="server"> <script src="js/jquery-1.4.1-vsdoc.js" type="text/javascript"></script> <script src="js/jquery.validate.js" type="text/javascript"></script> <script src="js/js.js" type="text/javascript"></script> <script type="text/javascript"> $(document).ready(function() { ValidPhoneHome("#<%= chkIntphoneHome%>"); $("#aspnetForm").validate({ // debug: true, rules: { "<%=txtHomePhone.UniqueID %>": { phonehome: true } }, errorElement: "mydiv", wrapper: "mydiv", // a wrapper around the error message errorPlacement: function(error, element) { offset = element.offset(); error.insertBefore(element) error.addClass('message'); // add a class to the wrapper error.css('position', 'absolute'); error.css('left', offset.left + element.outerWidth()); error.css('top', offset.top - (element.height() / 2)); } }); }) </script> <div id="mydiv"> <asp:CheckBox ID="chkIntphoneHome" runat="server" Text="Internation Code" Style="position: absolute; top: 620px; left: 700px;" onclick=" ValidPhoneHome(this)" /> <asp:TextBox ID="txtHomePhone" runat="server" Style="top: 650px; left: 700px; position: absolute; height: 22px; width: 128px" ></asp:TextBox> </div> </asp:Content> ............................. js.js File ................... var RegularExpression; var USAPhone = /(^[a-z]([a-z_\.]*)@([a-z_\.]*)([.][a-z]{3})$)|(^[a-z]([a-z_\.]*)@([a-z_\.]*)(\.[a-z]{3})(\.[a-z]{2})*$)/i; var InterPhone = /^\d{9,12}$/; var errmsg; function ValidPhoneHome(sender) { if (sender.checked == true) { RegularExpression = InterPhone; errmsg = "Enter 9 to 12 numbers as international number"; } else { RegularExpression = USAPhone; errmsg = "Enter a valid number"; } jQuery.validator.addMethod("phonehome", function(value, element) { return this.optional(element) || RegularExpression.test(value); }, errmsg); }

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• How to get the form parent of an input?

  - by ropstah

  Hi, i need to get a reference to the FORM parent of an INPUT when I only have a reference to that INPUT. Is this possible with javascript (or else jQuery) ? function doSomething(element) { //element is input object //how to get reference to form? } This doesn't work: var form = $(element).parents('form:first'); alert($(form).attr("name"));

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• jquery validator message styling error in IE08 only when customised using errorPlacement function

  - by John Slaytor

  Going back to the errorplacement solution by Nadia (http://stackoverflow.com/questions/860055/jquery-override-default-validation-error-message-display-css-popup-tooltip-like) I have tried it and it works like a charm in Safari and Firefox but causes IE08 to bypass the jqueryvalidator and go straight to the server side validator. My code is this - as soon as I insert 'error element.... it is unstable in IE08. All help much appreciated <script type="text/javascript"> $(document).ready(function() { $("#sampleform").validate({ rules: { dinername: "required", venue: "required", contact: "required", dinertelephone: "required", venuetime: "required", numberdiners: "required", dineremail: { required: true, email: true}, datepicker: { required: true,date: true} }, messages: { dinername: "Your name?", numberdiners: "How many guests?", dinertelephone: "Your mobile?", venue: "Which restaurant?", venuetime: "Your arrival time?", datepicker: "Your booking date?", dineremail: "Please enter a valid email address", }, errorElement: "div", errorPlacement: function(error, element) { element.before(error); offset = element.offset(); error.css('right', offset.right); error.css('right', offset.right - element.outerHeight()); } }); }); </script> <script type="text/javascript"> $(function() { $("#datepicker") .datepicker({minDate: 0, maxDate: '+6M +0D',dateFormat: 'DD, d M yy',onClose: function() {$(this).valid();} }); }); </script> The relevant webpage is http://www.johnslaytor.com.au/nilgiris/forms/bookingform/bookingform.html

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• Is there some advantage to filling a stack with nils and interpreting the "top" as the last non-nil value?

  - by dwilbank

  While working on a rubymonk exercise, I am asked to implement a stack with a hard size limit. It should return 'nil' if I try to push too many values, or if I try to pop an empty stack. My solution is below, followed by their solution. Mine passes every test I can give it in my IDE, while it fails rubymonk's test. But that isn't my question. Question is, why did they choose to fill the stack with nils instead of letting it shrink and grow like it does in my version? It just makes their code more complex. Here's my solution: class Stack def initialize(size) @max = size @store = Array.new end def pop empty? ? nil : @store.pop end def push(element) return nil if full? @store.push(element) end def size @store.size end def look @store.last end private def full? @store.size == @max end def empty? @store.size == 0 end end and here is the accepted answer class Stack def initialize(size) @size = size @store = Array.new(@size) @top = -1 end def pop if empty? nil else popped = @store[@top] @store[@top] = nil @top = @top.pred popped end end def push(element) if full? or element.nil? nil else @top = @top.succ @store[@top] = element self end end def size @size end def look @store[@top] end private def full? @top == (@size - 1) end def empty? @top == -1 end end

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• Check if 'onload' would have fired already?

  - by thomasrutter

  Hello, I have a situation where I'd like to set an onload handler for a script element, but it is possible that the script element has already loaded before I do so. If it's already loaded, I'd like to detect that and run my handler immediately. What would be a reliable way of checking a script element's onload state after the fact? BTW I know that IE uses readyState instead of an onload event so I don't need help for that.

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• jQuery validatoin plugin - site wide settings

  - by Daveo

  I want to have site wide default settings for all jQuery validation uses on my site, I want every form to use the below settings, but then on a per form basis change the rules and messages. Is this possible? $('#myForm').validate({ errorClass: 'field-validation-error', errorElement: 'span', errorPlacement: function(error, element) { element.next('span').remove(); error.insertAfter( element ) .removeClass('field-validation-error') .addClass('ui-state-error'); }, success: function(label) { label.remove(); } });

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• What's the right way to do mutable data structures (e.g., skip lists, splay trees) in F#?

  - by dan

  What's a good way to implement mutable data structures in F#? The reason I’m asking is because I want to go back and implement the data structures I learned about in the algorithms class I took this semester (skip lists, splay trees, fusion trees, y-fast tries, van Emde Boas trees, etc.), which was a pure theory course with no coding whatsoever, and I figure I might as well try to learn F# while I’m doing it. I know that I “should” use finger trees to get splay tree functionality in a functional language, and that I should do something with laziness to get skip-list functionality, etc. , but I want to get the basics nailed down before I try playing with purely functional implementations. There are lots of examples of how to do functional data structures in F#, but there isn’t much on how to do mutable data structures, so I started by fixing up the doubly linked list here into something that allows inserts and deletes anywhere. My plan is to turn this into a skip list, and then use a similar structure (discriminated union of a record) for the tree structures I want to implement. Before I start on something more substantial, is there a better way to do mutable structures like this in F#? Should I just use records and not bother with the discriminated union? Should I use a class instead? Is this question "not even wrong"? Should I be doing the mutable structures in C#, and not dip into F# until I want to compare them to their purely functional counterparts? And, if a DU of records is what I want, could I have written the code below better or more idiomatically? It seems like there's a lot of redundancy here, but I'm not sure how to get rid of it. module DoublyLinkedList = type 'a ll = | None | Node of 'a ll_node and 'a ll_node = { mutable Prev: 'a ll; Element : 'a ; mutable Next: 'a ll; } let insert x l = match l with | None -> Node({ Prev=None; Element=x; Next=None }) | Node(node) -> match node.Prev with | None -> let new_node = { Prev=None; Element=x; Next=Node(node)} node.Prev <- Node(new_node) Node(new_node) | Node(prev_node) -> let new_node = { Prev=node.Prev; Element=x; Next=Node(node)} node.Prev <- Node(new_node) prev_node.Next <- Node(new_node) Node(prev_node) let rec nth n l = match n, l with | _,None -> None | _,Node(node) when n > 0 -> nth (n-1) node.Next | _,Node(node) when n < 0 -> nth (n+1) node.Prev | _,Node(node) -> Node(node) //hopefully only when n = 0 :-) let rec printLinkedList head = match head with | None -> () | Node(x) -> let prev = match x.Prev with | None -> "-" | Node(y) -> y.Element.ToString() let cur = x.Element.ToString() let next = match x.Next with | None -> "-" | Node(y) -> y.Element.ToString() printfn "%s, <- %s -> %s" prev cur next printLinkedList x.Next

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• JQuery function not working as expected

  - by Mike

  I've written a little function to position a logo midway between the left hand side of the browser window and the (centered) navigation menu. The menu items are populated from a database, with the first item given the id item0. function positionLogo(){ var $menuleft=0; var $element=document.getElementById('item0'); if ($element.offsetParent) { do { $menuleft+=$element.offsetLeft; } while ($element=$element.offsetParent); } var $logoleft=($menuleft/2)-130; // As logo is 260px wide if ($logoleft<0) { $logoleft=0; } $('#logo').css('left',$logoleft); } $(document).ready(function(){ positionLogo(); }); $(window).resize(function(){ positionLogo(); }); This works fine when the window is resized, but when it first runs when the page is loaded, the position it sets is about 20px too far right (ie $logoleft is 20 more than it should be). As soon as the page is resized it jumps into the correct position. Haven't got it live anywhere at the moment but does anyone have any ideas? Thanks!

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• Java constructor and modify the object properties at runtime

  - by lupin

  Note: This is an assignment Hi, I have the following class/constructor. import java.io.*; class Set { public int numberOfElements = 0; public String[] setElements = new String[5]; public int maxNumberOfElements = 5; // constructor for our Set class public Set(int numberOfE, int setE, int maxNumberOfE) { int numberOfElements = numberOfE; String[] setElements = new String[setE]; int maxNumberOfElements = maxNumberOfE; } // Helper method to shorten/remove element of array since we're using basic array instead of ArrayList or HashSet from collection interface :( static String[] removeAt(int k, String[] arr) { final int L = arr.length; String[] ret = new String[L - 1]; System.arraycopy(arr, 0, ret, 0, k); System.arraycopy(arr, k + 1, ret, k, L - k - 1); return ret; } int findElement(String element) { int retval = 0; for ( int i = 0; i < setElements.length; i++) { if ( setElements[i] != null && setElements[i].equals(element) ) { return retval = i; } retval = -1; } return retval; } void add(String newValue) { int elem = findElement(newValue); if( numberOfElements < maxNumberOfElements && elem == -1 ) { setElements[numberOfElements] = newValue; numberOfElements++; } } int getLength() { if ( setElements != null ) { return setElements.length; } else { return 0; } } String[] emptySet() { setElements = new String[0]; return setElements; } Boolean isFull() { Boolean True = new Boolean(true); Boolean False = new Boolean(false); if ( setElements.length == maxNumberOfElements ){ return True; } else { return False; } } Boolean isEmpty() { Boolean True = new Boolean(true); Boolean False = new Boolean(false); if ( setElements.length == 0 ) { return True; } else { return False; } } void remove(String newValue) { for ( int i = 0; i < setElements.length; i++) { if ( setElements[i].equals(newValue) ) { setElements = removeAt(i,setElements); } } } int isAMember(String element) { int retval = -1; for ( int i = 0; i < setElements.length; i++ ) { if (setElements[i] != null && setElements[i].equals(element)) { return retval = i; } } return retval; } void printSet() { for ( int i = 0; i < setElements.length; i++) { System.out.println("Member elements on index: "+ i +" " + setElements[i]); } } String[] getMember() { String[] tempArray = new String[setElements.length]; for ( int i = 0; i < setElements.length; i++) { if(setElements[i] != null) { tempArray[i] = setElements[i]; } } return tempArray; } Set union(Set x, Set y) { String[] newXtemparray = new String[x.getLength()]; String[] newYtemparray = new String[y.getLength()]; Set temp = new Set(1,20,20); newXtemparray = x.getMember(); newYtemparray = x.getMember(); for(int i = 0; i < newXtemparray.length; i++) { temp.add(newYtemparray[i]); } for(int j = 0; j < newYtemparray.length; j++) { temp.add(newYtemparray[j]); } return temp; } } // This is the SetDemo class that will make use of our Set class class SetDemo { public static void main(String[] args) { //get input from keyboard BufferedReader keyboard; InputStreamReader reader; String temp = ""; reader = new InputStreamReader(System.in); keyboard = new BufferedReader(reader); try { System.out.println("Enter string element to be added" ); temp = keyboard.readLine( ); System.out.println("You entered " + temp ); } catch (IOException IOerr) { System.out.println("There was an error during input"); } /* ************************************************************************** * Test cases for our new created Set class. * ************************************************************************** */ Set setA = new Set(1,10,10); setA.add(temp); setA.add("b"); setA.add("b"); setA.add("hello"); setA.add("world"); setA.add("six"); setA.add("seven"); setA.add("b"); int size = setA.getLength(); System.out.println("Set size is: " + size ); Boolean isempty = setA.isEmpty(); System.out.println("Set is empty? " + isempty ); int ismember = setA.isAMember("sixb"); System.out.println("Element six is member of setA? " + ismember ); Boolean output = setA.isFull(); System.out.println("Set is full? " + output ); setA.printSet(); int index = setA.findElement("world"); System.out.println("Element b located on index: " + index ); setA.remove("b"); setA.emptySet(); int resize = setA.getLength(); System.out.println("Set size is: " + resize ); setA.printSet(); Set setB = new Set(0,10,10); Set SetA = setA.union(setB,setA); SetA.printSet(); } } I have two question here, why I when I change the class property declaration to: class Set { public int numberOfElements; public String[] setElements; public int maxNumberOfElements; // constructor for our Set class public Set(int numberOfE, int setE, int maxNumberOfE) { int numberOfElements = numberOfE; String[] setElements = new String[setE]; int maxNumberOfElements = maxNumberOfE; } I got this error: \ javaprojects>java SetDemo Enter string element to be added a You entered a Exception in thread "main" java.lang.NullPointerException at Set.findElement(Set.java:30) at Set.add(Set.java:43) at SetDemo.main(Set.java:169) Second, on the union method, why the result of SetA.printSet still printing null, isn't it getting back the return value from union method? Thanks in advance for any explaination. lupin

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• Why am I getting org.xml.sax.SAXException for this block of XML?

  - by drachenstern

  I've anonymised a bit of this. Hopefully it doesn't detract from the useful message. stringARRAY is where I think I'm getting thrown at, but I'm not sure, so if I'm looking at the wrong place, lemme know. From the WSDL <xsd:element name="LongishOpName"> <xsd:complexType> <xsd:sequence> <xsd:element maxOccurs="unbounded" name="stringARRAY" type="xsd:string" /> <xsd:element name="stringfield1" type="xsd:string" /> <xsd:element name="stringfield2" type="xsd:string" /> </xsd:sequence> </xsd:complexType> </xsd:element> Actual method call looks like this: string originalValue = "some useful value"; string[] usefulName1 = new[] { originalValue }; service.response[] responses = server.LongishOpName( usefulName1, someString1, someString2 ); And it generates this XML to the server (Thanks to Fiddler2): <?xml version="1.0" encoding="utf-8"?> <soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"> <soap:Body> <LongishOpName xmlns="http://appropriate-namespace"> <stringARRAY>114003</stringARRAY> <stringfield1>a string</stringfield1> <stringfield2>a string</stringfield2> </LongishOpName> </soap:Body> </soap:Envelope> To which I get this response <?xml version="1.0" encoding="utf-8"?> <soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <soapenv:Body> <soapenv:Fault> <faultcode>soapenv:Server.userException</faultcode> <faultstring>org.xml.sax.SAXException: Found character data inside an array element while deserializing</faultstring> <detail> <ns1:hostname xmlns:ns1="http://xml.apache.org/axis/">SERVERNAME</ns1:hostname> </detail> </soapenv:Fault> </soapenv:Body> </soapenv:Envelope> Is my soap message actually coming out malformed? (yes I am using the ASP.NET web references to do all the lifting, I'm not generating by hand) Should I be doing something different? Do I just need to go home and sleep on it and tomorrow everything will "just work"?

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• Looping trough feed entries with rome

  - by Gandalf StormCrow

  I'm trying to loop trough Atom feed entries, and get the title attribute lets say, I found this article, I tried this snipped of code : for (final Iterator iter = feeds.getEntries.iterator(); iter.hasNext(); ) { element = (Element)iter.next(); key = element.getAttributeValue("href"); if ((key != null) && (key.length() > 0)) { marks.put(key, key); } } But I get exception saying : java.lang.ClassCastException: com.sun.syndication.feed.synd.SyndEntryImpl cannot be cast to org.jdom.Element at com.emir.altantbh.FeedReader.main(FeedReader.java:47) What did I do wrong? can anyone direct me towards better tutorial or show me where did I make mistake, I need to loop trough entries and extract title tag value. thank you

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• jQuery validation plugin doesn't work for me

  - by Idsa

  I have the following code to enable validation work: $(document).ready(function() { $("#eventForm").validate({ rules: { startDate: "required", startTime: "required", endDate: { required: function (element) { var endTimeValue = $('#endTime').val(); return (endTimeValue != null && endTimeValue != ''); } }, endTime: { required: function (element) { var endDateValue = $('#endDate').val(); return (endDateValue != null && endDateValue != ''); } } }, messages: { startDate: "Please enter event local start date", startTime: "Please enter event local start time" }, errorPlacement: function (error, element) { error.appendTo(element.parent().next()); }, submitHandler: function (form) { var options = { dataType: 'json', success: eventCreationSuccess, error: eventCreationError }; alert('submit'); //$(form).ajaxSubmit(options); } }); }); But validation plugin doesn't catch submit - default submit is executed. jQuery and validation plugin scripts are imported.

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• Getting started with XSD validation with .NET

  - by Rosarch

  Here is my first attempt at validating XML with XSD. The XML file to be validated: <?xml version="1.0" encoding="utf-8" ?> <config xmlns="Schemas" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="config.xsd"> <levelVariant> <filePath>SampleVariant</filePath> </levelVariant> <levelVariant> <filePath>LegendaryMode</filePath> </levelVariant> <levelVariant> <filePath>AmazingMode</filePath> </levelVariant> </config> The XSD, located in "Schemas/config.xsd" relative to the XML file to be validated: <?xml version="1.0" encoding="utf-8" ?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified"> <xs:element name="config"> <xs:complexType> <xs:sequence> <xs:element name="levelVariant"> <xs:complexType> <xs:sequence> <xs:element name="filePath" type="xs:anyURI"> </xs:element> </xs:sequence> </xs:complexType> </xs:element> </xs:sequence> </xs:complexType> </xs:element> </xs:schema> Right now, I just want to validate the XML file precisely as it appears currently. Once I understand this better, I'll expand more. Do I really need so many lines for something as simple as the XML file as it currently exists? The validation code in C#: public void SetURI(string uri) { XElement toValidate = XElement.Load(Path.Combine(PATH_TO_DATA_DIR, uri) + ".xml"); // begin confusion // exception here string schemaURI = toValidate.Attributes("xmlns").First().ToString() + toValidate.Attributes("xsi:noNamespaceSchemaLocation").First().ToString(); XmlSchemaSet schemas = new XmlSchemaSet(); schemas.Add(null, schemaURI); XDocument toValidateDoc = new XDocument(toValidate); toValidateDoc.Validate(schemas, null); // end confusion root = toValidate; } Running the above code gives this exception: The ':' character, hexadecimal value 0x3A, cannot be included in a name. Any illumination would be appreciated.

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• What's so bad about in-line CSS?

  - by ChessWhiz

  When I see website starter code and examples, the CSS is always in a separate file, named something like "main.css", "default.css", or "Site.css". However, when I'm coding up a page, I'm often tempted to throw the CSS in-line with a DOM element, such as by setting "float: right" on an image. I get the feeling that this is "bad coding", since it's so rarely done in examples. I understand that if the style will be applied to multiple objects, it's wise to follow "Don't Repeat Yourself" (DRY) and assign it to a CSS class to be referenced by each element. However, if I won't be repeating the CSS on another element, why not in-line the CSS as I write the HTML? The question: Is using in-line CSS considered bad, even if it will only be used on that element? If so, why? Example (is this bad?): <img src="myimage.gif" style="float:right" />

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• MySQL Column Value Pivot

  - by manyxcxi

  I have a MySQL InnoDB table laid out like so: id (int), run_id (int), element_name (varchar), value (text), line_order, column_order `MyDB`.`MyTable` ( `id` bigint(20) NOT NULL, `run_id` int(11) NOT NULL, `element_name` varchar(255) NOT NULL, `value` text, `line_order` int(11) default NULL, `column_order` int(11) default NULL It is used to store data generated by a Java program that used to output this in CSV format, hence the line_order and column_order. Lets say I have 2 entries (according to the table description): 1,1,'ELEMENT 1','A',0,0 2,1,'ELEMENT 2','B',0,1 I want to pivot this data in a view for reporting so that it would look like more like the CSV would, where the output would look this: --------------------- |ELEMENT 1|ELEMENT 2| --------------------- | A | B | --------------------- The data coming in is extremely dynamic; it can be in any order, can be any of over 900 different elements, and the value could be anything. The Run ID ties them all together, and the line and column order basically let me know where the user wants that data to come back in order.

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