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  • Why is overloading operator&() prohibited for classes stored in STL containers?

    - by sharptooth
    Suddenly in this article ("problem 2") I see a statement that C++ Standard prohibits using STL containers for storing elemants of class if that class has an overloaded operator&(). Having overloaded operator&() can indeed be problematic, but looks like a default "address-of" operator can be used easily through a set of dirty-looking casts that are used in boost::addressof() and are believed to be portable and standard-compilant. Why is having an overloaded operator&() prohibited for classes stored in STL containers while the boost::addressof() workaround exists?

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  • RSA Encryption C#

    - by Ryan
    Hi guys, I have a class which in C# doing RSA encryption where I used the default RSACryptoServiceProvider class. But I have a concern regarding the following; If you have the word hello for an input and the encrypted string is returned as ABCDE, if you perform another encrypt operation on the input hello, using the same keys (public and private) for the RSA will the output be again ABCDE? Thanks in advance

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  • asp.net Web server control with child controls, event not firing

    - by bleeeah
    I have a simple web control (TaskList) that can have children (Task) which inherit from LinkButton, that can be added declaratively or programatically. This works ok, but I can't get the onclick event of a Task to be fired in my code behind. The code .. [ToolboxData("<{0}:TaskList runat=\"server\"> </{0}:TaskList>")] [ParseChildren(true)] [PersistChildren(false)] public class TaskList : System.Web.UI.Control { //[DefaultProperty("Text")] public TaskList() {} private List<Task> _taskList = new List<Task>(); private string _taskHeading = ""; public string Heading { get { return this._taskHeading; } set { this._taskHeading = value; } } [NotifyParentProperty(true)] [PersistenceMode(PersistenceMode.InnerProperty)] [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] public List<Task> Tasks { get { return this._taskList; } set { this._taskList = value; } } protected override void CreateChildControls() { foreach (Task task in this._taskList) this.Controls.Add(task); base.CreateChildControls(); } protected override void Render(HtmlTextWriter writer) { writer.Write("<h2>" + this._taskHeading + "</h2>"); writer.Write("<div class='tasks_container'>"); writer.Write("<div class='tasks_list'>"); writer.Write("<ul>"); foreach (Task task in this._taskList) { writer.Write("<li>"); task.RenderControl(writer); writer.Write("</li>"); } writer.Write("</ul>"); writer.Write("</div>"); writer.Write("</div>"); } } public class Task : LinkButton { private string _key = ""; public string Key { get { return this._key; } set { this._key = value; } } } Markup: <rf:TaskList runat="server" ID="tskList" Heading="Tasks"> <Tasks> <rf:Task Key="ba" ID="L1" Text="Helllo" OnClick="task1_Click" runat="server" /> </Tasks> </rf:TaskList> The Onclick event task1_Click never fires when clicked (although a postback occurs).

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  • using a Singleton to pass credentials in a multi-tenant application a code smell?

    - by Hans Gruber
    Currently working on a multi-tenant application that employs Shared DB/Shared Schema approach. IOW, we enforce tenant data segregation by defining a TenantID column on all tables. By convention, all SQL reads/writes must include a Where TenantID = '?' clause. Not an ideal solution, but hindsight is 20/20. Anyway, since virtually every page/workflow in our app must display tenant specific data, I made the (poor) decision at the project's outset to employ a Singleton to encapsulate the current user credentials (i.e. TenantID and UserID). My thinking at the time was that I didn't want to add a TenantID parameter to each and every method signature in my Data layer. Here's what the basic pseudo-code looks like: public class UserIdentity { public UserIdentity(int tenantID, int userID) { TenantID = tenantID; UserID = userID; } public int TenantID { get; private set; } public int UserID { get; private set; } } public class AuthenticationModule : IHttpModule { public void Init(HttpApplication context) { context.AuthenticateRequest += new EventHandler(context_AuthenticateRequest); } private void context_AuthenticateRequest(object sender, EventArgs e) { var userIdentity = _authenticationService.AuthenticateUser(sender); if (userIdentity == null) { //authentication failed, so redirect to login page, etc } else { //put the userIdentity into the HttpContext object so that //its only valid for the lifetime of a single request HttpContext.Current.Items["UserIdentity"] = userIdentity; } } } public static class CurrentUser { public static UserIdentity Instance { get { return HttpContext.Current.Items["UserIdentity"]; } } } public class WidgetRepository: IWidgetRepository{ public IEnumerable<Widget> ListWidgets(){ var tenantId = CurrentUser.Instance.TenantID; //call sproc with tenantId parameter } } As you can see, there are several code smells here. This is a singleton, so it's already not unit test friendly. On top of that you have a very tight-coupling between CurrentUser and the HttpContext object. By extension, this also means that I have a reference to System.Web in my Data layer (shudder). I want to pay down some technical debt this sprint by getting rid of this singleton for the reasons mentioned above. I have a few thoughts on what an better implementation might be, but if anyone has any guidance or lessons learned they could share, I would be much obliged.

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  • Blackberry coading

    - by lalita
    Hello friends, I am using blackberry using java eclips I have a lengthy of code in single class.so I need to divide code into different classess(need to implement methode in diffferent classes), how to write code in diff classes and how to access diiferent classes methodes in a single class. Can you please give me suggesion.

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  • How to cutomize a modelform widget in django 1.1?

    - by muudscope
    I'm trying to modify a django form to use a textarea instead of a normal input for the "address" field in my house form. The docs seem to imply this changed from django 1.1 (which I'm using) to 1.2. But neither approach is working for me. Here's what I've tried: class HouseForm(forms.ModelForm): address = forms.Textarea() # Should work with django 1.1, but doesn't class Meta: model = House #widgets = { 'address': forms.Textarea() } # 1.2 style - doesn't work either.

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  • highlighting search results in php error

    - by fusion
    i'm trying to figure out what is wrong in this code. it either doesn't highlight the search result OR it outputs html tags surrounding the highlighted text. . $search_result = ""; $search_result = trim($search_result); $special_cases = array( '%', '_', '+' ); $search_result = str_replace( $special_cases, '', $_GET["q"] ); //Check if the string is empty if ($search_result == "") { echo "<p>Search Error</p><p>Please enter a search...</p>" ; exit(); } $result = mysql_query('SELECT cQuotes, vAuthor, cArabic, vReference FROM thquotes WHERE cQuotes LIKE "%' . mysql_real_escape_string($search_result) .'%" ORDER BY idQuotes DESC', $conn) or die ('Error: '.mysql_error()); //eliminating special characters function h($s) { echo htmlspecialchars($s, ENT_QUOTES); } function highlightWords($string, $word) { $string = str_replace($word, "<span style='background-color: #FFE066;font-weight:bold;'>".$word."</span>", $string); /*** return the highlighted string ***/ return $string; } ?> <div class="caption">Search Results</div> <div class="center_div"> <table> <?php while ($row= mysql_fetch_array($result, MYSQL_ASSOC)) { $cQuote = highlightWords($row['cQuotes'], $search_result); ?> <tr> <td style="text-align:right; font-size:15px;"><?php h($row['cArabic']); ?></td> <td style="font-size:16px;"><?php h($cQuote); ?></td> <td style="font-size:12px;"><?php h($row['vAuthor']); ?></td> <td style="font-size:12px; font-style:italic; text-align:right;"><?php h($row['vReference']); ?></td> </tr> <?php } ?> </table> </div> on the browser, it is outputted as: A good <span style='background-color: #FFE066;font-weight:bold;'>action</span> is an ever-remaining store and a pure yield or if a div is used with class: A good <div class='highlight'>action</div> is an ever-remaining store and a pure yield

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  • Transferring object from parent to child

    - by waiwai933
    I'm currently developing an Custom Application using the IP.Board framework, which is in PHP, which by default, creates a IPSMember object for the logged-in user. However, I'm developing an additional class, basically class SpecialUser extends IPSMember Is there a way to get the parent object, which is IPSMember to change to SpecialUser?

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  • Detect bugs in this asp.net VB master page , default.aspx and detail.aspx page codes. [closed]

    - by ITGURU2011
    please help me in detecting some bugs, cosmetic issues, information design issues, programming issues in the Below code of master page and default.aspx page and detail.aspx page. also suggest me some way to make it work better. i seprated all the three pages with the names. Master Page <%@ Master Language="VB" CodeFile="Limo.master.vb" Inherits="Limo" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title>Untitled Page</title> <asp:ContentPlaceHolder id="ContentPlaceHolder2" runat="server"> </asp:ContentPlaceHolder> <link href="StyleSheet.css" rel="stylesheet" type="text/css" /> <style type="text/css"> .style3 { color: #0000CC; font-family: Constantia; font-size: xx-large; font-weight: normal; } </style> </head> <body> <form id="form1" runat="server"> <div class="ExternalDiv"> <div class="HeaderDiv"> <h1 class="style3"> Limousines</h1> <p class="style3"> &nbsp;</p> <div class="MenuDiv"> </div> <div class="ContentDiv"> <asp:ContentPlaceHolder id="ContentPlaceHolder1" runat="server"> </asp:ContentPlaceHolder> </div> </div> </div> </form> </body> </html> default.aspx page <%@ Page Language="VB" MasterPageFile="~/Limo.master" AutoEventWireup="false" CodeFile="default.aspx.vb" Inherits="list" title="List" %> <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server"> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <div style="height: 1343px; width: 727px"> <asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False" DataSourceID="SqlDataSource2" style="top: 134px; left: 12px; position: absolute; height: 1337px; width: 531px"> <Columns> <asp:BoundField DataField="Limo_Types" HeaderText="Limo_Types" SortExpression="Limo_Types" /> <asp:HyperLinkField DataNavigateUrlFields="Limo_Types" DataNavigateUrlFormatString="Details.aspx?tag={0}" DataTextField="Limo_Types" HeaderText="Click for Detail" /> <asp:ImageField DataImageUrlField="Images" DataImageUrlFormatString="images/{0}" HeaderImageUrl="~/images/6.jpg" HeaderText="Thumbnail"> <ControlStyle Height="200px" Width="200px" /> <HeaderStyle Height="200px" Width="200px" /> <ItemStyle Height="200px" Width="200px" /> </asp:ImageField> </Columns> </asp:GridView> <asp:SqlDataSource ID="SqlDataSource1" runat="server"></asp:SqlDataSource> <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString5 %>" ProviderName="<%$ ConnectionStrings:ConnectionString5.ProviderName %>" SelectCommand="SELECT [Limo_Types], [Images] FROM [tag]"> </asp:SqlDataSource> </div> </asp:Content> details.aspx page <%@ Page Language="VB" MasterPageFile="~/Limo.master" AutoEventWireup="false" CodeFile="Details.aspx.vb" Inherits="Details" title="Details Page" %> <asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" Runat="Server"> <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" AllowSorting="True" BackColor="White" BorderColor="#999999" BorderStyle="Solid" BorderWidth="1px" CellPadding="3" ForeColor="Black" GridLines="Vertical"> <Columns> <asp:BoundField DataField="Limo_Types" HeaderText="Limo_Types" SortExpression="Limo_Types" /> <asp:BoundField DataField="Name" HeaderText="Name" SortExpression="Name" /> <asp:BoundField DataField="Price" HeaderText="Price" SortExpression="Price" /> <asp:BoundField DataField="Description" HeaderText="Description" SortExpression="Description" /> <asp:BoundField DataField="Color" HeaderText="Color" SortExpression="Color" /> <asp:ImageField DataImageUrlField="Image" DataImageUrlFormatString="images/{0}" HeaderImageUrl="~/App_Data/images/1.jpg" HeaderText="Image" AccessibleHeaderText="Image" AlternateText="Image"> <ControlStyle Height="300px" Width="300px" /> </asp:ImageField> </Columns> <FooterStyle BackColor="#CCCCCC" /> <PagerStyle BackColor="#999999" ForeColor="Black" HorizontalAlign="Center" /> <SelectedRowStyle BackColor="#000099" Font-Bold="True" ForeColor="White" /> <HeaderStyle BackColor="Black" Font-Bold="True" ForeColor="White" /> <AlternatingRowStyle BackColor="#CCCCCC" /> </asp:GridView> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" ProviderName="<%$ ConnectionStrings:ConnectionString.ProviderName %>" SelectCommand="SELECT [Limo_Types], [Name], [Price], [Image], [Description], [Color] FROM [Query1] WHERE ([Limo_Types] = ?)"> <SelectParameters> <asp:QueryStringParameter Name="Limo_Types" QueryStringField="tag" Type="String" /> </SelectParameters> </asp:SqlDataSource> </asp:Content> <asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder2" Runat="Server"> </asp:Content>

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  • Rails 3: How to validate that A < B where A and B are both model attributes ?

    - by Misha Moroshko
    I would like to validate that customer_price >= my_price. I tried the following: class Product < ActiveRecord::Base attr_accessor :my_price validates_numericality_of :customer_price, :greater_than_or_equal_to => my_price ... end (customer_price is a column in the Products table in the database, while my_price isn't.) Here is the result: NameError in ProductsController#index undefined local variable or method `my_price' for #<Class:0x313b648> What is the right way to do this in Rails 3 ?

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  • How do i call a method by a string name using python?

    - by gath
    I have the following class; class myStringMethod(): def __init__(self): self.func_list= [('func1','print_func1()'),('func2','print_func2()')] def print_func1(self, name): print name def print_func2(self, name): print name def call_func_by_name(self): for func in self.func_list: getattr(self, func[1])('Func Name') if __name__=='__main__': strM = myStringMethod() strM.call_func_by_name() #Nothing prints out! No functions get called out, what am i missing? gath

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  • Providing the path to an image stored on the server, not in the application files

    - by twal
    I need to display images on my ASP.NET MVC page that will be stored on the server i have an apphelper class that I can use to provide the path like this public static class AppHelper { public static string ImageLowResPath(string imageName) { } } How can I get the file path that is stored on the c: drive of the server here? In my view I will get the filepath like this img src='<%=AppHelper.ImagelowResPath("10-1010.jpg") %' Thank you

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  • Java: when to use static methods

    - by KP65
    Hello, I am wondering when to use static methods? Say If i have a class with a few getters and setters, a method or two, and i want those methods only to be invokable on an instance object of the class. Does this mean i should use a static method? e.g Obj x = new Obj(); x.someMethod or Obj.someMethod (is this the static way?) I'm rather confused!

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  • How can I create a Searchstring for a Google AJAX Search API?

    - by elmaso
    Hello, i have this code to get the search resutls from the api: querygoogle.php: <?php session_start(); // Here's the Google AJAX Search API url for curl. It uses Google Search's site:www.yourdomain.com syntax to search in a specific site. I used $_SERVER['HTTP_HOST'] to find my domain automatically. Change $_POST['searchquery'] to your posted search query $url = 'http://ajax.googleapis.com/ajax/services/search/web?rsz=large&v=1.0&start=20&q=' . urlencode('' . $_POST['searchquery']); // use fopen and fread to pull Google's search results $handle = fopen($url, 'rb'); $body = ''; while (!feof($handle)) { $body .= fread($handle, 8192); } fclose($handle); // now $body is the JSON encoded results. We need to decode them. $json = json_decode($body); // now $json is an object of Google's search results and we need to iterate through it. foreach($json->responseData->results as $searchresult) { if($searchresult->GsearchResultClass == 'GwebSearch') { $formattedresults .= ' <div class="searchresult"> <h3><a href="' . $searchresult->unescapedUrl . '">' . $searchresult->titleNoFormatting . '</a></h3> <p class="resultdesc">' . $searchresult->content . '</p> <p class="resulturl">' . $searchresult->visibleUrl . '</p> </div>'; } } $_SESSION['googleresults'] = $formattedresults; header('Location: ' . $_SERVER['HTTP_REFERER']); exit; ?> search.php <?php session_start(); ?> <form method="post" action="querygoogle.php"> <label for="searchquery"><span class="caption">Search this site</span> <input type="text" size="20" maxlength="255" title="Enter your keywords and click the search button" name="searchquery" /></label> <input type="submit" value="Search" /> </form> <?php if(!empty($_SESSION['googleresults'])) { echo $_SESSION['googleresults']; unset($_SESSION['googleresults']); } ?> but with this code, I cant add a searchstring.. how can i add a search string like search.php?search=keyword ? thanks

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  • How to discover classes with [Authorize] attributes using Reflection in C#? (or How to build Dynamic

    - by Pretzel
    Maybe I should back-up and widen the scope before diving into the title question... I'm currently writing a web app in ASP.NET MVC 1.0 (although I do have MVC 2.0 installed on my PC, so I'm not exactly restricted to 1.0) -- I've started with the standard MVC project which has your basic "Welcome to ASP.NET MVC" and shows both the [Home] tab and [About] tab in the upper-right corner. Pretty standard, right? I've added 4 new Controller classes, let's call them "Astronomer", "Biologist", "Chemist", and "Physicist". Attached to each new controller class is the [Authorize] attribute. For example, for the BiologistController.cs [Authorize(Roles = "Biologist,Admin")] public class BiologistController : Controller { public ActionResult Index() { return View(); } } These [Authorize] tags naturally limit which user can access different controllers depending on Roles, but I want to dynamically build a Menu at the top of my website in the Site.Master Page based on the Roles the user is a part of. So for example, if JoeUser was a member of Roles "Astronomer" and "Physicist", the navigation menu would say: [Home] [Astronomer] [Physicist] [About] And naturally, it would not list links to "Biologist" or "Chemist" controller Index page. Or if "JohnAdmin" was a member of Role "Admin", links to all 4 controllers would show up in the navigation bar. Ok, you prolly get the idea... Starting with the answer from this StackOverflow topic about Dynamic Menu building in ASP.NET, I'm trying to understand how I would fully implement this. (I'm a newbie and need a little more guidance, so please bare with me.) The answer proposes Extending the Controller class (call it "ExtController") and then have each new WhateverController inherit from ExtController. My conclusion is that I would need to use Reflection in this ExtController Constructor to determine which Classes and Methods have [Authorize] attributes attached to them to determine the Roles. Then using a Static Dictionary, store the Roles and Controllers/Methods in key-value pairs. I imagine it something like this: public class ExtController : Controller { protected static Dictionary<Type,List<string>> ControllerRolesDictionary; protected override void OnActionExecuted(ActionExecutedContext filterContext) { // build list of menu items based on user's permissions, and add it to ViewData IEnumerable<MenuItem> menu = BuildMenu(); ViewData["Menu"] = menu; } private IEnumerable<MenuItem> BuildMenu() { // Code to build a menu SomeRoleProvider rp = new SomeRoleProvider(); foreach (var role in rp.GetRolesForUser(HttpContext.User.Identity.Name)) { } } public ExtController() { // Use this.GetType() to determine if this Controller is already in the Dictionary if (!ControllerRolesDictionary.ContainsKey(this.GetType())) { // If not, use Reflection to add List of Roles to Dictionary // associating with Controller } } } Is this doable? If so, how do I perform Reflection in the ExtController constructor to discover the [Authorize] attribute and related Roles (if any) ALSO! Feel free to go out-of-scope on this question and suggest an alternate way of solving this "Dynamic Site.Master Menu based on Roles" problem. I'm the first to admit that this may not be the best approach.

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  • jQuery serialize does not register checkboxes

    - by Steven
    I'm using jQuery.serialize to retrieve all data fields in a form. My problem is that it does not retriev checkboxes that is not checked. It includes this: <input type="checkbox" id="event_allDay" name="event_allDay" class="checkbox" checked="checked" /> but not this <input type="checkbox" id="event_allDay" name="event_allDay" class="checkbox" /> How can I get "values" of checkboxes that is not checked?

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  • xstream handles non-english character

    - by Yan Cheng CHEOK
    I have the following code : /* * To change this template, choose Tools | Templates * and open the template in the editor. */ package helloworld; import com.thoughtworks.xstream.XStream; import java.io.File; import java.io.FileOutputStream; import java.io.InputStream; import java.io.OutputStream; import javax.swing.JOptionPane; /** * * @author yccheok */ public class Test { @SuppressWarnings("unchecked") public static <A> A fromXML(Class c, File file) { XStream xStream = new XStream(); InputStream inputStream = null; try { inputStream = new java.io.FileInputStream(file); Object object = xStream.fromXML(inputStream); if (c.isInstance(object)) { return (A)object; } } catch (Exception exp) { exp.printStackTrace(); } finally { if (inputStream != null) { try { inputStream.close(); inputStream = null; } catch (java.io.IOException exp) { exp.printStackTrace(); return null; } } } return null; } @SuppressWarnings("unchecked") public static <A> A fromXML(Class c, String filePath) { return (A)fromXML(c, new File(filePath)); } public static boolean toXML(Object object, File file) { XStream xStream = new XStream(); OutputStream outputStream = null; try { outputStream = new FileOutputStream(file); xStream.toXML(object, outputStream); } catch (Exception exp) { exp.printStackTrace(); return false; } finally { if (outputStream != null) { try { outputStream.close(); outputStream = null; } catch (java.io.IOException exp) { exp.printStackTrace(); return false; } } } return true; } public static boolean toXML(Object object, String filePath) { return toXML(object, new File(filePath)); } public static void main(String args[]) { String s = "\u6210\u4EA4\u91CF"; // print ??? System.out.println(s); // fine! show ??? JOptionPane.showMessageDialog(null, s); toXML(s, "C:\\A.XML"); String o = fromXML(String.class, "C:\\A.XML"); // show ??? JOptionPane.showMessageDialog(null, o); } } I run the following code through command prompt in Windows Vista. 1) May I know why System.out.println unable to print out Chinese Character in console? 2) I open up the xstream file. The saved value is <string>???</string> How can I make xstream save Chinese Character correctly? Thanks.

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  • WPF DataGrid, Help with Binding to a List<X> where each X has a Dictionary<Y,object> property.

    - by panamack
    I'm building an application which helps someone manage an event and works with data originating from Excel. I want to use the WPF Toolkit DataGrid to display the incoming data but can't guarantee how many Columns there are going to be or what information they will contain. I'd like to have an Info class that stores column information and have each Visitor at my Event own a Dictionary that uses shared references to Info objects for the keys. Here's the general gist: public class Info{ public string Name{get;set;} public int InfoType{get;set;} } public class Visitor{ public Dictionary<Info,object> VisitorInfo {get;set;} } public class Event{ public List<Visitor> Visitors{get;set;} public Event(){ Info i1 = new Info(){ Name = "ID", InfoType = 0};// type 0 for an id Info i2 = new Info(){ Name = "Name", InfoType = 1};// type 1 for a string Info i3 = new Info(){ Name = "City", InfoType = 1}; Visitor v1 = new Visitor(); v1.VisitorInfo.Add(i1, 0); v1.VisitorInfo.Add(i2, "Foo Harris"); v1.VisitorInfo.Add(i3, "Barsville"); Visitor v2 = new Visitor(); ... this.Visitors.Add(v1); this.Visitors.Add(v2); ... } } XAML: <!-- Window1.xaml --> ... <local:Event x:Key="MyEvent"/> ... <wpftk:DataGrid DataContext="{StaticResource MyEvent}" ItemsSource="{Binding Path=Visitors}" /> Disappointingly, DataGrid just sees a collection of Visitors each having a VisitorInfo property and displays one column called VisitorInfo with the string "(Collection)" once for each Visitor. As a workaround I've created a ListTVisitorToDataTableConverter that maps Infos to DataColumns and Visitors to DataRows and used it like this: <wpftk:DataGrid DataContext="{StaticResource Event}" ItemsSource{Binding Path=Visitors, Converter={StaticResource MySmellyListTVisitorToDataTableConverter}}" /> I don't think this is good though, I haven't started trying to convert back yet which I guess I'll need to do if I want to be able to edit any data! How can I do better? Thanks.

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  • manipulate content inserted by ajax, without using the callback

    - by Cody
    I am using ajax to insert a series of informational blocks via a loop. The blocks each have a title, and long description in them that is hidden by default. They function like an accordion, only showing one description at a time amongst all of the blocks. The problem is opening the description on the first block. I would REALLY like to do it with javascript right after the loop that is creating them is done. Is it possible to manipulate elements created ofter an ajax call without using the callback? <!-- example code--> <style> .placeholder, .long_description{ display:none;} </style> </head><body> <script> /* yes, this script is in the body, dont know if it matters */ $(document).ready(function() { $(".placeholder").each(function(){ // Use the divs to get the blocks var blockname = $(this).html(); // the contents if the div is the ID for the ajax POST $.post("/service_app/dyn_block",'form='+blockname, function(data){ var divname = '#div_' + blockname; $(divname).after(data); $(this).setupAccrdFnctly(); //not the actual code }); }); /* THIS LINE IS THE PROBLEM LINE, is it possible to reference the code ajax inserted */ /* Display the long description in the first dyn_block */ $(".dyn_block").first().find(".long_description").addClass('active').slideDown('fast'); }); </script> <!-- These lines are generated by PHP --> <!-- It is POSSIBLE to display the dyn_blocks --> <!-- here but I would really rather not --> <div id="div_servicetype" class="placeholder">servicetype</div> <div id="div_custtype" class="placeholder">custtype</div> <div id="div_custinfo" class="placeholder">custinfo</div> <div id="div_businfo" class="placeholder">businfo</div> </body>

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  • Django: get count of ForeignKey item in template?

    - by AP257
    Straightforward question - apologies if it is a duplicate, but I can't find the answer if so. I have a User model and a Submission model, like this: class Submission(models.Model): uploaded_by = models.ForeignKey('User') class User(models.Model): name = models.CharField(max_length=250 ) How can I show the number of Submissions made by each user in the template? I've tried {{ user.submission.count }}, like this: for user in users: {{ user.name }} ({{ user.submission.count }} submissions) but no luck...

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  • How to add scroll bar dynamically in div?

    - by JavaH
    hai i need to add the Scroll bar dynamically i tried http://www.w3schools.com/cssref/tryit.asp?filename=trycss_overflow.but its not working.Anybody kindly help me $results_list = $('<div class="'+options.resultsClass+'" style="display:block;position:absolute;z-index:9999;overflow:scroll;"></div>'). update $results_list = $('<div class="'+options.resultsClass+'" style="width:100px;height:100px;overflow:scroll;display:block;position:absolute;z-index:9999;"></div>').hide();

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