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  • What is problem with below class

    - by user258367
    class LinkedList { private: int data; LinkedList *ptr; public: LinkedList(int i_data) { data = i_data; ptr = 0; { ~LinkedList() { delete ptr ; } void insert(LinkedList *node) { while(this->next != 0) this = this->next; this->next = node; } I will be creating a head node like head = new LinkedList(4) and then will be calling like head->insert(new LinkedList(5)) and subsequently . Can you please tell me does above class represent a linkedlist . i think yes it has node which contain address of next node . Please correct me if i am wrong

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  • List Box Multiple Selection Problem

    - by rupeshmalviya
    Hello Friends I am using a list box control in aspx page i have set multiple selection property to true, but when i try to select more than one item it does not select multiple items, it selects one only do i have to do something programatically here is my code on code behind nothing ...i want why it is not selecting more than one item's .. i am using namespace using System.Web.UI.WebControls; as well but of no avail..

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  • MSXML problem in VC++ 6

    - by Tony
    I have this bit of code: typedef CComQIPtr<MSXML::IXMLDOMDocument2> XML_DocumentPtr; then inside some class: XML_DocumentPtr m_spDoc; then inside some function: XML_NodePtr rn=m_spDoc->GetdocumentElement(); I cannot find anywhere in the MSDN documentation what that GetDocumentElement() is supposed to do? Can anyone tell me why it doesn't seem to be part of IXMLDOMDocument2 interface? And which interface does have it?

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  • Problem with PHP array index.

    - by user632027
    Following code: <?php $test_array = array(); $test_array['string_index'] = "data in string index"; $test_array[] = "data in index 0"; $test_array[] = "data in index 1"; $test_array[] = "data in index 2"; foreach($test_array as $key => $val) { if($key != 'string_index') { echo $val."<br>"; } } ?> gives result: data in index 1 data in index 2 Question is - where is "data in index 0"??? How to get elements from numeric indices 0-n? Also if I change 'string_index' to something else which doesn't exist, it echoes everything except [0]. Plz, explain me this. Thnx in advance

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  • Problem with LINQ to XML and Namespaces

    - by abtcabe
    I am having problems with working with a third party XML string that contains a Namespace with LINQ to XML. In the below code everything works find. I am able to select the xElement (xEl1) and update its value. 'Example Without Namespace Dim XmlWithOutNs = _ <?xml version="1.0"?> <RATABASECALC> <RATEREQUEST> <ANCHOR> <DATABASENAME>DatabaseName</DATABASENAME> <DATABASEPW>DatabasePw</DATABASEPW> </ANCHOR> </RATEREQUEST> </RATABASECALC> Dim xEl1 = XmlWithOutNs...<DATABASEPW>.FirstOrDefault If xEl1 IsNot Nothing Then xEl1.Value = "test" End If However, in the below code the xElement (xEl2) returns Nothing. The only difference is the Namespace (xmlns="http://www.cgi.com/Ratabase) 'Example With Namespace Dim XmlWithNs = _ <?xml version="1.0"?> <RATABASECALC xmlns="http://www.cgi.com/Ratabase"> <RATEREQUEST> <ANCHOR> <DATABASENAME>DatabaseName</DATABASENAME> <DATABASEPW>DatabasePw</DATABASEPW> </ANCHOR> </RATEREQUEST> </RATABASECALC> Dim xEl2 = XmlWithNs...<DATABASEPW>.FirstOrDefault If xEl2 IsNot Nothing Then xEl2.Value = "test" End If So my questions are: 1. Why is this happening? 2. How do I resolve this issue?

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  • a problem with char** in c

    - by sagi
    hello i have an char** arr which is an array of strings and i want to erase the 2 last cell of the array or maybe to create a new char** but without those last 2 cells thank you very much.

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  • default loading problem

    - by pradeep
    hi, i am working on a site. where in i use tables. when i load the page for 1st time the table seems to be cluttered, but when i refresh the page again, its align itself properly.dono how do i solve this issue.i am proving the sample link URL please provide some help.

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  • problem in add custom error message in zend_element

    - by user1400
    hello all i created a text element like following code $test = $this->createElement('text', 'test'); $test->setLabel('test:'); $test->addValidator(new Zend_Validate_Int()); $test->addErrorMessages(array('isEmpty'=>'u should enter a number','%value% is not integer')); $shomare->setRequired(true); $this->addElement($test); when i set empty or non integer number to textbox , it show both its own error message , if its empty errormessage="u should enter a number" and when it is not a valid integer it shows '%value% is not integer' thanks

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  • LINQ query with specified number of rows in a subquery problem

    - by John
    I'm trying to write the following query in LINQ, but can't seem to get it correct. select p.* from Person p inner join PersoniPhones i ON p.PersonID = i.PersonID where p.PersonID in ( SELECT PersonID FROM ( SELECT Top 10 PersonID, iPhoneID FROM iPhone ORDER BY LastPlayedDate DESC ) as t ) I've tried the following, but it doesn't return correctly var tenIPhones = from i in context.PersonIPhones .OrderByDescending(i => i.LastPlayedDate) .Take(minNumQuestions) select new { i.PersonID, i.IPHoneID}; var people = from p in context.Person join t in tenIPhones on p.PersonID equals t.PersonID select p; Any ideas?

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  • uploading app problem in developers site

    - by Siva K
    hi i have posted one of my app in market.android.com when i am trying to post second app it shows "You have another application on Market with the same package name. Go to that other application, and click upgrade" I dont want to upgrade it but i want my second app to be posted. When i tried to change the package name it showed lots of errors, so i decided to create the app once again in a new package and project name, it seems to be a very lengthy process.... pls help me to solve the issue bcoz i have created all my app in same package name unknowingly.......

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  • basic modal dialog problem

    - by senzacionale
    image for opening popup. <div id='basic-modal'> <a href="#"><input type="image" name="HelpHealthCenter" class="basic" id="imgHelpHealthCenter" tabindex="-1" title="Some text that will display" src="/images/help.gif" style="border-width:0px;" /></a> </div> i am using basic modal dialog (first demo) in thi link: http://www.ericmmartin.com/projects/simplemodal-demos/ This is JS for opening popup windows jQuery(function ($) { $('#basic-modal .basic').click(function (e) { $('#basic-modal-content').modal(); return false; }); }); but i want to read title="" from image instead of reading text from "basic-modal-content" div when popup is opened. <div id="basic-modal-content"> text on popup window </div> Thx for help.

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  • C++ template type deduction problem

    - by hamishmcn
    motivation: I would like to create a utility class so that instead of having to write: if( someVal == val1 || someVal == val2 || someVal == val3 ) I could instead write: if( is(someVal).in(val1, val2, val3) ) which is much closer to the mathematical 'a is an element of (b,c,d)' and also would save on a lot of typing when the variable name 'someVal' is long. Here is the code I have so far (for 2 and 3 values): template<class T> class is { private: T t_; public: is(T t) : t_(t) { } bool in(const T& v1, const T& v2) { return t_ == v1 || t_ == v2; } bool in(const T& v1, const T& v2, const T& v3) { return t_ == v1 || t_ == v2 || t_ == v3; } }; However it fails to compile if I write: is(1).in(3,4,5); instead I have to write is<int>(1).in(3,4,5); Which isn't too bad, but it would be better if somehow the compiler could figure out that the type is int with out me having to explicitly specify it. Is there anyway to do this or I am stuck with specifying it explicitly?

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  • Back Bar button problem

    - by user342804
    I have a Modal View Controller. I would like to navigate to another page and then back. It is not a navigation controller. What should I do now?Should I place an UIButton Item or a Navigation Item on the navigation Bar?

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  • Serialising my JSON output problem in JQuery

    - by davykiash
    Am trying to validate my form using an AJAX call $("#button").click(function() { $.ajax({ type: "POST", url: "<?php echo $this->baseUrl() ?>/expensetypes/async", data: 'fs=' + JSON.stringify($('#myform').serialize(true)), contentType: "application/json; charset=utf-8", dataType: "json" }); }); On my controller my code is as follows //Map the form from the client-side call $myFormData = Zend_Json::decode($this->getRequest()->getParam("fs") ,Zend_Json::TYPE_ARRAY); $form = new Form_Expensetypes(); $form->isValid($myFormData); However from firebug my output is as follows fs="id=&expense_types_code=AAA&expense_types_desc=CCCC&expense_types_linkemail=XXXX&expense_types_budgetamount=22222&expense_types_budgetperiod=22222" What I expect is something similar to fs{"expense_types_code":"AAA","expense_types_desc":"CCCC","expense_types_linkemail":"XXXX","expense_types_budgetamount":"22222"} How do I achieve this type of serialisation?

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  • Mysterious logging.basicConfig problem (Python)

    - by Max
    I'm writing a Python script to retrieve data from Flickr. For logging purposes, I have the following setup function: def init_log(logfile): format = '%(asctime)s - %(levelname)s - %(message)s' logging.basicConfig(filename=logfile,level=logging.DEBUG,format=format) I've tested this using the python shell and it works as expected, creating a file if one doesn't already exist. But calling it from within my program is where it stops working. The function is definitely being called, and the logfile parameter is working properly – logging.basicConfig just isn't creating any file. I'm not even getting any errors or warnings. My use of the Python Flickr API may be the culprit, but I doubt it. Any ideas?

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  • problem with date() function

    - by Syom
    i save in mysql database the time using NOW() function. how can i change the value returned of NOW() function? i want to add 6 hours. example if now() returns 2010-04-03 20:16:27, i want to save 2010-04-04 02:16:27

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  • Problem loading a contents URL into a string

    - by bebeTech
    I've been using this method for a few weeks now as suggested on my previous question and the app now keeps crashing with a Protocol 443 error - something about unable to resolve the address. Worked fine when first installed and then just stopped. The same with on the device itself, worked fine until this morning and now the same issue?? Nothing wrong with the URL as I can still load in a browser. If I leave it for a couple of days it starts working again?? Is there a more effecient way of using the Http POST and GET functions? All I am trying to do is perform a login and save the resulting page to a string. Is there a more Android friendly way?

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  • Problem with default member functions of class in C++ (constructor, destructor, operator=, copy cons

    - by Narek
    We know that compiler generates some member functions for user-defined class if that member functions are not defined but used, isn't it. So I have this kind of code: class AA { }; void main() { AA a; AA b(a); a = b; } This code works fine. I mean no compiler error. But the following code.... class AA { int member1; int member2; }; But this code gives an run time error, because variable "a" is used without being iniltialized!!! So my question is this: when we instantiate an int, it has a value. So why the default constructer doesn't work and by using those two int numbers initializes variable "a"??

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  • Problem using mysql joins

    - by mariomario
    I'm fairly new to mysql and I have no idea if I'm heading in the right direction but I'm having trouble with a mysql query. I basically have a table of users id name ---- -------- 1 user1 2 user2 3 user3 4 user4 as well as a table of user attributes id userid attribute ---- ----- ------ 1 1 5 2 1 6 3 2 5 4 3 4 I want to be able to select users that have both the attribute 5 and the attribute 6, so in this case I want to return id name ---- -------- 1 user1 I tried using a join like this. SELECT u.id, u.name FROM users u LEFT JOIN attributes a ON (a.userid = u.id) WHERE a.attribute = 5 AND a.attribute = 6 But obviously that won't work, what is the best way of doing this?

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  • jQuery global variable problem

    - by Emanuel
    var id = $(this).children().html(); // id is 5 $.ajax({ url: 'ajax.php?id=' + id, success: function(data) { id = data; // id is 1 } }); if(id == 1){ // id is again 5 ... } Why in the following example I can't reinitialize the id variable? What is wrong? Thanks.

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  • header problem in php refresh

    - by basma
    hello i have this code : <?php session_start(); echo "".$_SESSION['eventnum'].""; $urlRefresh = "testremot.php"; header("Refresh: 5; URL=\"" . $urlRefresh . "\""); ?> but the header doesnt work and this warning appear when i try to run this code : Warning: Cannot modify header information - headers already sent by (output started at C:\xampp\htdocs\remot\testremot.php:3) in C:\xampp\htdocs\remot\testremot.php on line 5 can you please help me ?

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  • Problem Binding to a Brush Property in WPF

    - by Krisc
    Working in WPF, writing a custom user control. I am trying to change the background property of the Border element when I change the value of a property of the class. Right now I am working on simply binding it to a DP, though if there is a better way I am open to suggestions. Here is the XAML for the UserControl <UserControl x:Class="MyProject.MyControl" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:js="clr-namespace:MyProject" mc:Ignorable="d" x:Name="MyControlRootLayout" Background="Transparent" d:DesignHeight="300" d:DesignWidth="300" Cursor="Hand"> <Border x:Name="RootBorder" Background="{Binding Path=CoreBackground, ElementName=MyControlRootLayout}" > </Border> </UserControl> And the code... public partial class MyControl : UserControl { public static DependencyProperty IsSelectedProperty = DependencyProperty.Register("IsSelected", typeof(bool), typeof(MyControl)); public static DependencyProperty CoreBackgroundProperty = DependencyProperty.Register("CoreBackground", typeof(Brush), typeof(MyControl)); public MyControl() { CoreBackground = new SolidColorBrush(Color.FromArgb(0, 255, 245, 104)); InitializeComponent(); Margin = new Thickness(5); } public Brush CoreBackground { get { return (Brush)GetValue(CoreBackgroundProperty); } set { SetValue(CoreBackgroundProperty, value); } } public bool IsSelected { get { return (bool)GetValue(IsSelectedProperty); } private set { SetValue(IsSelectedProperty, value); } } } Instead, the background comes out as transparent.

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