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• Remove the white text shadow from disabled links in IE8

  - by mancub

  We are using Ext JS for an application in work, building a custom theme for it. We currently have a dark colour scheme including menus with dark backgrounds. In some of the menus some of the links are disabled at certain points, which all perfectly. However IE8 seems to add a sort of white text shadow, which I am sure is normally fine but as the text is light grey and the background is dark grey the white text shadow makes it look blurry and even makes the other enabled links more disabled as they look darker. Does anyone know of a way to remove the text shadow (I realise it is not css text-shadow as IE does not support it).

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• Django and conditional aggregates

  - by piquadrat

  I have two models, authors and articles: class Author(models.Model): name = models.CharField('name', max_length=100) class Article(models.Model) title = models.CharField('title', max_length=100) pubdate = models.DateTimeField('publication date') authors = models.ManyToManyField(Author) Now I want to select all authors and annotate them with their respective article count. That's a piece of cake with Django's aggregates. Problem is, it should only count the articles that are already published. According to ticket 11305 in the Django ticket tracker, this is not yet possible. I tried to use the CountIf annotation mentioned in that ticket, but it doesn't quote the datetime string and doesn't make all the joins it would need. So, what's the best solution, other than writing custom SQL?

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• DropDownList problem/doubt

  - by SlimBoy

  Hi everybody!! I have one dropdownlist like this bellow.. the problem is that if I have more than 30 ListItem the list will have 30 elements/rows display and the rest to scroll. Is there a way to show only 10 elements and scroll the rest? I read in some pages that this is not possible. Is that true? <asp:DropDownList ID="id" runat="server"> <asp:ListItem Text="A" Value="AA" Enabled="true"></asp:ListItem> <asp:ListItem Text="B" Value="AA" Enabled="true"></asp:ListItem> . . . <asp:ListItem Text="D" Value="AA" Enabled="true"></asp:ListItem> </asp:DropDownList>

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• Security exception with ASP.NET AJAX toolkit

  - by Rod

  I've got an ASP.NET WebForms app that I've written, which uses the ASP.NET AJAX Toolkit. I've put the MultiView control onto the web form, and it worked fine, when I had it under Vista. Well, I had to replace my machine (HD failed) and I went to Windows 7 Ultimate. I tried copying the ASP.NET app from the system (before it finally failed for good) and put it onto the Windows 7 machine. I can bring up the app fine, go to all pages, but the one with these controls on it. When I do I get the following error: Security Exception Description: The application attempted to perform an operation not allowed by the security policy. To grant this application the required permission please contact your system administrator or change the application's trust level in the configuration file. Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. What's going on? How do I fix it?

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• UIView subclass draws background despite completely empty drawRect: - why?

  - by Pascal

  So, I have a custom UIView subclass which enables drawing of rounded edges. The thing draws perfectly, however the background always fills the whole bounds, despite clipping to a path first. The border also draws above the rectangular background, despite the fact that I draw the border in drawRect: before the background. So I removed the whole content of drawRect:, which is now virtually empty - nevertheless the background gets drawn! Anybody an explanation for this? I set the backgroundColor in Interface Builder. Thanks!

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• Cannot change the Label text!

  - by BDotA

  I have created a custom control and added a label property to it so at design time we can pick a Label and assign it to that control. so basically I want that if a label is assigned to that control, its text should change as below and also its text should change to bold font, so here is that code: private Label assignedLabel; public Label AssignedLabel { get { return assignedLabel; } set { assignedLabel = value; assignedLabel.Text = @"*" + assignedLabel.Text; assignedLabel.Font = new Font(AssignedLabel.Font, FontStyle.Bold); AssignedLabel.Refresh(); } } the problem is that based on the code above the Font of that assigned label is correctly changing to Bold font, but its Text is not taking affect. why is that happening? how can I fix this issue?

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• How to customize the ColorPicker class in Adobe flex3.0?

  - by Ankur Sharma

  i have to make the colorpiker tool of flex, to be a customized one, i beleive you have seen the color picker tool of flex, when you click on the colorpicker, a swatch panel gets open, right?? now in that swatch, there are three compoenents, one is thw colorbox(on top left), beside right to this is the text field holding the hex code of the color and below these two tools, is the colors present in the small rectangles, now my need is this, i want to add three more buttons on the top empty space after textfield, so that structure of the colors pciker looks like this colorbox | textfield | button1 | button2 | button3 color rectangles, showing all default colors i beleive u understood, what i meant here, so plzz help me out in making a custom colorpciker class, thanx Namaste

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• Stop propagating deletes

  - by Mark

  Is it just me or is anyone else finding EF very difficult to use in a real app :( I'm using it as the data layer and have created custom business objects. I'm having difficulty converting the business objects back to EF objects and updating/adding/deleting from the database. Does anyone know a good, simple example of doing this? Actually the current problem that's driving me nuts is when I delete something EF tries to delete other related stuff as well. For example, if I delete an invoice it will also delete the associated customer! Seems odd. I can't figure out how to stop it doing this. // tried: invoiceEfData.CustomerReference = null; // also tried invoiceEfData.Customer = null; context.DeleteObject(invoiceEfData); context.SaveChanges(); // at this point I get a database error due to it attempting to delete the customer

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• How should I model the database for this problem? And which ORM can handle it?

  - by Kristof Claes

  I need to build some sort of a custom CMS for a client of ours. These are some of the functional requirements: Must be able to manage the list of Pages in the site Each Page can contain a number of ColumnGroups A ColumnGroup is nothing more than a list of Columns in a certain ColumnGroupLayout. For example: "one column taking up the entire width of the page", "two columns each taking up half of the width", ... Each Column can contain a number ContentBlocks Examples of a ContentBlock are: TextBlock, NewsBlock, PictureBlock, ... ContentBlocks can be given a certain sorting within a Column A ContentBlock can be put in different Columns so that content can be reused without having to be duplicated. My first quick draft of how this could look like in C# code (we're using ASP.NET 4.0 to develop the CMS) can be found at the bottom of my question. One of the technical requirements is that it must be as easy as possible to add new types of ContentBlocks to the CMS. So I would like model everything as flexible as possible. Unfortunately, I'm already stuck at trying to figure out how the database should look like. One of the problems I'm having has to do with sorting different types of ContentBlocks in a Column. I guess each type of ContentBlock (like TextBlock, NewsBlock, PictureBlock, ...) should have it's own table in the database because each has it's own different fields. A TextBlock might only have a field called Text whereas a NewsBlock might have fields for the Text, the Summary, the PublicationDate, ... Since one Column can have ContentBlocks located in different tables, I guess I'll have to create a many-to-many association for each type of ContentBlock. For example: ColumnTextBlocks, ColumnNewsBlocks and ColumnPictureBlocks. The problem I have with this setup is the sorting of the different ContentBlocks in a column. This could be something like this: TextBlock NewsBlock TextBlock TextBlock PictureBlock Where do I store the sorting number? If I store them in the associaton tables, I'll have to update a lot of tables when changing the sorting order of ContentBlocks in a Column. Is this a good approach to the problem? Basically, my question is: What is the best way to model this keeping in mind that it should be easy to add new types of ContentBlocks? My next question is: What ORM can deal with that kind of modeling? To be honest, we are ORM-virgins at work. I have been reading a bit about Linq-to-SQL and NHibernate, but we have no experience with them. Because of the IList in the Column class (see code below) I think we can rule out Linq-to-SQL, right? Can NHibernate handle the mapping of data from many different tables to one IList? Also keep in mind that this is just a very small portion of the domain. Other parts are Users belonging to a certain UserGroup having certain Permissions on Pages, ColumnGroups, Columns and ContentBlocks. The code (just a quick first draft): public class Page { public int PageID { get; set; } public string Title { get; set; } public string Description { get; set; } public string Keywords { get; set; } public IList<ColumnGroup> ColumnGroups { get; set; } } public class ColumnGroup { public enum ColumnGroupLayout { OneColumn, HalfHalf, NarrowWide, WideNarrow } public int ColumnGroupID { get; set; } public ColumnGroupLayout Layout { get; set; } public IList<Column> Columns { get; set; } } public class Column { public int ColumnID { get; set; } public IList<IContentBlock> ContentBlocks { get; set; } } public interface IContentBlock { string GetSummary(); } public class TextBlock : IContentBlock { public string GetSummary() { return "I am a piece of text."; } } public class NewsBlock : IContentBlock { public string GetSummary() { return "I am a news item."; } }

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• ie6 p3p 'file download security warning'

  - by cometta

  i have a page inside iframe, so i set the header to "P3P","CP=\"IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT\"" after that my page inside iframe able to load properly and i able to authenticate user with 'form' post . but on ie6, when i post 'form' inside iframe, i get ie6 message 'file download security warning on javascript file' . those javascript files are put on 'head' of pages inside iframe. how comes ie6 suddenly pop up dialog asking to download those files? anyone know which p3p parameter cause this problem?

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• Repair bad character due to encoding problem

  - by remi bourgarel

  Hi all, Recently we had an encoding problem in our system : If we had the string "æ" in our db ,it became "æ" on our web pages. Now this problem is solved, but the problem is that now we have a lot of "æ" in our database : users didn't see and validate pre-filled form with these characters. I found that If you read in utf 8 C3A6 you'll get "æ", if you read it in ascii you'll get "æ". It's strange because if I execute "select convert(varbinary(40),N'æ'),convert(varbinary(40),'æ')" I don't have the same result... Do you have any idea on how I can fix my database (ie change all "æ" to "æ") ? thx

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• Prevent IE caching

  - by Parhs

  I am developing a Java EE web application using Struts. The problem is with Internet Explorer caching. If an user logs out he can access some pages because they are cached and no request is made. If I hit refresh it works fine. Also if an user goes to login page again it won't redirect him because that page is also cached. Two solutions come to my mind: Writing an Interceptor (servlet filter like) to add to response header no-cache etc. Or or put <meta> tags at each page. Which one should I do?

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• How to add line breaks in RSS feeds?

  - by Candidasa

  I'm building my own custom RSS feed in PHP. I want the tag to contain line breaks to make the text more readable. However, I can't seem to figure out how to do it correctly. No matter what I try some RSS reader interprets it incorrectly. Is there some standard best way to add a line-break in and RSS 2.0 feed? I have tried "\n", which works in NetNewsWire on the Mac, but gets ignored by the built-in Safari browser's RSS reader. I have tried <br />, which works in the Safari RSS reader, but results in all the text after the being cut off in NetNewsWire.

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• Do not show partial items in a WPF listbox

  - by David Martin

  I've tried Google and I've tried Bing to no avail. Does anyone here have an idea on how to prevent partial items from appearing in a listbox in WPF? In case that does not make sense here is an example: Listbox is 200 pixels tall - each item is 35 pixels tall. That means I can show 5.7 items. 7/10 of an item is undesirable. I'd like to limit it to showing only 5 items. The user could then scroll to see the additional items. Should I A) try to dynamically size the listbox or ScrollViewer ViewPort so that it fits perfectly? Or B) implement a custom panel that would not arrange a child whose desired height is more than the remaining vertical space? Any thoughts would be greatly appreciated. Last note: If anyone knows of a 3rd party control (listbox or grid) that does this I would be interested in that as well.

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• How to render a Partial from a Model in Rails 2.3.5

  - by empire29

  I have a Rails 2.3.5 application and Im trying to render several Partials from within a Model (i know, i know -- im not supposed to). The reason im doing this is im integrating a Comet server (APE) into my Rails app and need to push updates out based on the Model's events (ex. after_create). I have tried doing this: ActionView::Base.new(Rails::Configuration.new.view_path).render(:partial => "pages/show", :locals => {:page => self}) Which allows me to render simple partials that don't user helpers, however if I try to user a link_to in my partial, i receive an error stating: undefined method `url_for' for nil:NilClass I've made sure that the object being passed into the "project_path(project)" is not nil. I've also tried including: include ActionView::Helpers::UrlHelper include ActionController::UrlWriter in the Module that contains the method that makes the above "render" call. Does anyone know how to work around this? Thanks

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• Javascript issue on IE

  - by vinu-arumugam

  I have added the social links in my html page. When I added, the top nav of my pages is gone. Tats appeared in firefox but not in IE. Any one help me how can i resolve tis? Here is the code i used. <a class="addthis_button" href="http://www.addthis.com/bookmark.php?v=250&username=xa-4b9a190d10b004d6"><img src="http://s7.addthis.com/static/btn/v2/lg-share-en.gif" width="125" height="16" alt="Bookmark and Share" style="border:0"/></a><script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#username=xa-4b9a190d10b004d6"></script>

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• JPA character encoding

  - by wheelie

  Hi there, I have a Java Web application using GlassFish 3, JSF2.0 (facelets) and JPA (EclipseLink) on MySQL (URL: jdbc:mysql://localhost:3306/administer). The problem I'm facing is that if I'm saving entities to the database with the update() method, String data loses integrity; '?' is shown instead of some characters. The server, pages and database is/are configured to use UTF-8. After I post form data, the next page shows the data correctly. Furthermore it "seems" in debug that the String property of the current entity stores the correct value too. Dunno if NetBeans debug can be trusted; might be that it decodes correctly, however it's incorrect. Any help would be appreciated, thanks in advance! Daniel

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• JDBC character encoding

  - by wheelie

  Hi there, I have a Java Web application using GlassFish 3, JSF2.0 (facelets) and JPA (EclipseLink) on MySQL (URL: jdbc:mysql://localhost:3306/administer). The problem I'm facing is that if I'm saving entities to the database with the update() method, String data loses integrity; '?' is shown instead of some characters. The server, pages and database is/are configured to use UTF-8. After I post form data, the next page shows the data correctly. Furthermore it "seems" in debug that the String property of the current entity stores the correct value too. Dunno if NetBeans debug can be trusted; might be that it decodes correctly, however it's incorrect. Any help would be appreciated, thanks in advance! Daniel

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• How can I pass a dynamic backing bean into a JSF 2.0 page using facelets?

  - by kgrad

  Hi, I am using a JSF 2.0 to create a web app (purely jee6, without spring/seam etc.). I would like to have a single xhtml page but pass the proper backing bean / entity into it. For example, I would like to be able to edit a user other than the logged in user, I have a user edit page which displays the information of the logged in user (being tracked by my session), I would like to instead pass in a user selected from a list and edit that user's information, without switching the user that is stored in the session or creating a separate xhtml page (violating DRY). The "best" way I can see to achieve this would be to reuse the exact same xhtml page that I am using to display the logged-in-user's edit page, but simply pass in a different entity in some way. Perhaps calling the setter in the backing bean before redirecting to the page (if this is even possible) or some other solution that does not violate DRY. Perhaps I have designed this all wrong, is there a way to pass in entities to JSF pages? thanks.

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• Silverlight 3-4 reference kind (e-)book.

  - by Bubba88

  Hello! I'm looking for a source of information about Microsoft Silverlight to begin practically efficient programming custom functionality applications. I want to pretend just for now that I don't need any ideologically correct refresher (SL tips, top patterns, VS tutorials :) and etc.). Basically, what I want is a reference kind e-book, where I could find any practically relevant info outlined in a minimalistic manner. If you do remember something fitting the above description, I ask you to give me a hint. Thank you very much!

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• Google Gadgets and external scripts

  - by Brandon Durham

  I'm trying to create my first custom Google Gadget to be used privately in my company's Google Sites intranet. Ideally I'd like to just show a thumbnail that the user can click that will open a modal window with the full video. This requires my including a couple of small JS libraries in my widget. For my widget I created this XML: <?xml version="1.0" encoding="UTF-8"?> <Module> <ModulePrefs title="Video Demos" /> <Content view="url" href="http://www.website.com/_gadgets/video.php"> </Content> </Module> The "video.php" page has simple HTML on it and includes two JS files for the modal window using but doesn't work. Are you not able to include external scripts like this? If not, what are my options here?

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• Cache for everybody except staff members.

  - by Oli

  I have a django site where I want to stick an "admin bar" along the top of every non-admin page for staff members. It would contain useful things like page editing tools, etc. The problem comes from me using the @cache_page decorator on lots of pages. If a normal user hits a page, the cached version comes up without the admin bar (even for admin users) and if an admin hits the page first, normal users see the admin bar. I could tediously step through the templates, adding regional cache blocks but there are a lot of templates, and life is altogether too short. Ideally, there would be a way of telling the caching to ignore cache get/set requests from admin users... But I don't know how to best implement that. How would you tackle this problem?

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• CSRF error when trying to log onto Django admin page with w3m on Emacs23

  - by Vernon

  I normally use Firefox and have had no problems with the admin page on my Django website. But I use Emacs23 for writing my posts, and wanted to be able to use w3m in Emacs to copy the stuff across. When I try to log into my admin pages, it gives the CSRF error: CSRF verification failed. Request aborted. Help Reason given for failure: No CSRF or session cookie. ... Is there a way that I could get w3m to work with my admin page? I am not sure if the problem lies with the way the admin is set up on Django or with the Emacs or w3m settings.

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• NHibernate mapping one table on two classes with where selection

  - by Rene Schulte

  We would like to map a single table on two classes with NHibernate. The mapping has to be dynamically depending on the value of a column. Here's a simple example to make it a bit clearer: We have a table called Person with the columns id, Name and Sex. The data from this table should be mapped either on the class Male or on the class Female depending on the value of the column Sex. In Pseudocode: create instance of Male with data from table Person where Person.Sex = 'm'; create instance of Female with data from table Person where Person.Sex = 'f'; The benefit is we have strongly typed domain models and can later avoid switch statements. Is this possible with NHibernate or do we have to map the Person table into a flat Person class first? Then afterwards we would have to use a custom factory method that takes a flat Person instance and returns a Female or Male instance. Would be good if NHibernate (or another library) can handle this.

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• Guice creates Swing components outside of UI thread problem?

  - by Boris Pavlovic

  I'm working on Java Swing application with Google Guice as an IOC container. Things are working pretty well. There are some UI problems. When a standard L&F is replaced with Pushing pixels Substance L&F application is not running due to Guice's Swing components creation outside of UI thread. Is there a way to tell Guice to create Swing components in the UI thread? Maybe I should create custom providers which will return Swing components after SwingUtilities.invokeAndWait(Runnable) creates them. I don't like the idea of running the whole application in UI thread, but maybe it's just a perfect solution.

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