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  • Servlet Filters and the OSGi HttpService

    - by wrumsby
    I'm working on an OSGi-based application that uses org.osgi.service.http.HttpService which does not support the use of Servlet Filters. Before I realised that I wouldn't be able to use Servlet Filters I was planning to apply a couple of existing Filters. These Filters set the appropriate HTTP headers to: prevent caching of responses control rendering in IE8 with the X-UA-Compatible header What are my options here? I don't want to use meta elements to control caching since that technique is unreliable. Using a meta element to set the X-UA-Compatible header is probably acceptable, but I'd still be interested in alternative approaches.

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  • DoDragDrop disables MouseMove Events

    - by stefan.at.wpf
    After having started a Drag & Drop operation by DragDrop.DoDragDrop(...) no more MouseMove Events are fired. I even tried AddHandler(Window.MouseMoveEvent, new MouseEventHandler(myControl_MouseMove), true); where the last parameter means I even opt in for handled events. No chance, seems like the MouseMove Event is never fired at all! Any way to still get MouseMove Events while using Drag & Drop? I'd like to Drag & Drop a control, while dragging this control it shall follow the mouse pointer. Any idea how to do this in this case?

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  • Best way to implement a Parsing/Editable Richtextbox in WPF

    - by lozzar
    I'm trying to implement (as a prototype initially), a richtextbox control which can be parsed in real time to apply certain formatting options to it. This is being done in WPF so I thought the best way to go about it would be to extend the existing rich text box control. I've run into the issue where it isn't documented well and the examples are quite slow (the ones I found have parse the whole document on every keystroke). The way I've currently decided to go about it is to create a custom Inline element which can hold the formatting tags, and the contents. Hence I only have to parse the current paragraph and the runs in that paragraph for formatting tags. Is there a better way to achieve this? Note this isn't for code/syntax based documents (so AvalonEdit isn't appropriate). Cheers

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  • What is the least intrusive way to display WPF tooltip on focus?

    - by Andrey Shchekin
    What is the minimum number of steps required to display a tooltip when the following control gets focus? <TextBox ToolTip="Hello there!" ... /> I tried the following in GotFocus private void ..._GotFocus(object sender, RoutedEventArgs e) { var element = (FrameworkElement)sender; var tooltip = element.ToolTip; if (!(tooltip is ToolTip)) { tooltip = new ToolTip { Content = tooltip }; element.ToolTip = tooltip; } ((ToolTip)tooltip).IsOpen = true; } However, it seems to ignore the ToolTipService.Placement for this control and SystemParameters.ToolTipPopupAnimationKey set up level higher. How can I make it work and honor all settings that generally work for tooltips (except the timing, obviously)?

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  • wpf combobox padding

    - by Jose
    This is a simple question How do you remove the space between the content of a combobox and the border of it. E.g. If the selection of a combobox is "Selection 1" then the "S" is drawn at the very top left of the ComboBox control with no whitespace spacing between it and top left portion of the control. I did this <ComboBox Padding="0"/> Even this: <ComboBox.ItemContainerStyle> <Style TargetType="ComboBoxItem"> <Setter Property="Padding" Value="0"/> </Style> </ComboBox.ItemContainerStyle> The specified ComboBox above is within a ListView GridViewColumn. Maybe that's messing with something. This doesn't remove the padding. Any ideas?

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  • Help organising controllers logically

    - by kenny99
    Hi guys, I'm working on a site which i'm developing using an MVC structure. My models will represent all of data in the site, but i'm struggling a bit to decide on a good controller structure. The site will allow users to login/register and see personal data on a number of pages, but also still have access to public pages, e.g FAQs, Contact page etc. This is what I have at the moment... A Template Controller which handles main template display. The basic template for the site will remain the same whether or not you are logged in. A main Website Controller which extends the Template Controller and handles basic authentication. If the user is logged in, a User::control_panel() method is called from the constructor and this builds the control panel which will be present throughout the authenticated session. If user is not logged in, then a different view is loaded instead of the control panel, e.g with a login form. All protected/public page related controllers will extend the website controller. The user homepage has a number of widgets I want to display, which I'm doing via a Home Controller which extends the Website Controller. This controller generates these widgets via the following static calls: $this->template->content->featured_pet = Pet::featured(); $this->template->content->popular_names = Pet::most_popular(); $this->template->content->owner_map = User::generate_map(); $this->template->content->news = News::snippet(); I suppose the first thing I'm unsure about is if the above static calls to controllers (e.g Pet and User) are ok to remain static - these static methods will return views which are loaded into the main template. This is the way I've done things in the past but I'm curious to find out if this is a sensible approach. Other protected pages for signed in users will be similar to the Home Controller. Static pages will be handled by a Page Controller which will also extend the Website Controller, so that it will know whether or not the user control panel or login form should be shown on the left hand side of the template. The protected member only pages will not be routed to the Page Controller, this controller will only handle publicly available pages. One problem I have at the moment, is that if both public and protected pages extend the Website Controller, how do I avoid an infinite loop - for example, the idea is that the website controller should handle authentication then redirect to the requested controller (URL), but this will cause an infinite redirect loop, so i need to come up with a better way of dealing with this. All in all, does this setup make any sense?! Grateful for any feedback.

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  • Developing ASP.NET MVC UI Extensions - best approach

    - by user252160
    What are the best practices in developing rich UI extensions for ASP.NET MVC (I mean asynchronous / partial loading, slick effects, skinning etc) ? I saw that Telerik has an MVC suite of extensions, but haven't tried them yet, so I cannot comment on them. My biggest concern as of the moment is how to structure the code of my extensions so that C#, ASP markup, and JQuery remain separate from each other, yet encapsulated in a way that the extension must be easy to distribute and reuse. I know that the user control approach had many flaws, yet it sort of allowed application developers to just reference a control, set some parameters and get it going in a few minutes. I'd like to achieve the same kind of portability/reusability as I still keep the code easy to extend and build upon. Now, some ideas that come to mind as topics for discussion are: template helpers vs. extension method helpers or a possible integration efficient use of jQuery - naming conventions - - asynchronous action loading - etc you can add whatever comes to your mind

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  • Quartz in Webapplication

    - by JKV
    I have a question in scheduling jobs in web application. If we have to schedule jobs in web application we can either use java util Timer/TimerTask or Quartz(there are also other scheduling mechanism, but I considered Quartz). I was considering which one to use, when i hit the site http://oreilly.com/pub/a/java/archive/quartz.html?page=1 which says using timer has a bad effect as it creates a thread that is out of containers control in the last line. The other pages discuss Quartz and its capabilities, but I can read that Quartz also uses thread and/or threadpool to schedule tasks. My guess is that these threads are also not under the containers control Can anybody clarify this to me Is it safe to use Quartz in my web applications without creating hanging threads or thread locking issues? Thanks in advance

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  • How can I make a Qt widget ignore style sheets set on parent widgets?

    - by Hisham Abboud
    When adding a QComboBox control in Qt Designer, I get a terrible looking, non-native control, see: http://curiouschap.com/wp-content/uploads/2010/05/stack_qcombobox_question.png [as a newbie, SO wouldn't let me insert the image] On digging further, it turns out that two of the parent controls, QParentWindow and QStackedWidget, have style sheets that QComboBox is inheriting. If I delete the custom styles, then I get a native QComboBox like the one on the left. How can I have QComboBox (and widgets generally) NOT inherit parent styles? Or, how can I create a style for, say, QParentWindow, and do it so that it's local only and does not cascade?

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  • Windows forms application blocks after station lock

    - by Silviu
    We're having a serious issue at work. We've discovered that after the station where the client was running is locked/unlocked the client is blocked. No repaint. So the UI thread is blocked with something. Looking at the callstack of the UI thread (thread 0) using windbg we see that a UserPreferenceChanged event gets raised. It is marshalled through a WindowsFormsSynchronizationContext using it's controlToSend field to the UI. It gets blocked by a call to the marshalling control. The method called is MarshaledInvoke it builds a ThreadMethodEntry entry = new ThreadMethodEntry(caller, method, args, synchronous, executionContext); This entry is supposed to do the magic. The call is a synchronous call and because of that (still in the MarshaledInvoke of the Control class) the wait call is reached: if (!entry.IsCompleted) { this.WaitForWaitHandle(entry.AsyncWaitHandle); } The last thing that i can see on the stack is the WaitOne called on the previously mentioned AsyncWaitHandle. This is very annoying because having just the callstack of the runtime and not one of our methods being invoked we cannot really point to a bug in our code. I might be wrong, but I'm guessing that the marshaling control is not "marshaling" to the ui thread. But another one...i don't really know which one because the other threads are being used by us and are blocked...maybe this is the issue. But none of the other threads are running a message loop. This is very annoying. We had some issues in the past with marshaling controls to the right ui thread. That is because the first form that is constructed is a splash form. Which is not the main form. We used to use the main form to marshal call to the ui thread. But from time to time some calls would go to a non ui thread and some grids would broke with a big red X on them. I fixed this by creating a specific class: public class WindowsFormsSynchronizer { private static readonly WindowsFormsSynchronizationContext = new WindowsFormsSynchronizationContext(); //Methods are following that would build the same interface of the synchronization context. } This class gets build as one of the first objects in the first form being constructed. We've noticed some other strange thing. Looking at the heap there are 7 WindowsFormsSynchronizationContext objects. 6 of these have the same instance of controlToSend, and the other one has some different instance of controlToSend. This last one is the one that should marshal the calls to the UI. I don't have any other idea...maybe some of you guys had this same issue?

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  • DotNetOpenAuth OpenIdTextBox For Google/Yahoo

    - by user300992
    If I want to integrate DotNetOpenAuth (primary for people to use their Google/Yahoo accounts to login, not act as provider) into my existing site, is this one line control good enough? <rp:OpenIdTextBox ID="OpenIdTextBox1" runat="server" /> Say, if a user wants to login as Google, I can simply set the textbox to "https://www.google.com/accounts/o8/id" and then they can login. I tried it with my Google account, it seems working and I can get the token from HttpContext.Current.User.Identity.Name. Is this "one line" solution secure enough for production? or is it a "must" that I have to use "OpenIdSelector" or "OpenIDLogin" control? I also opened the .net template and some samples, they are very complicated. There are PAPE policies, xrds.aspx (for discovery), ConsumerKey + ConsumerSecret...etc. As a newbie, I am very confused. Any tips on this will be really appreciated. Thanks

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  • Looking for a simple interface for users to enter data for Silverlight application

    - by Edward Tanguay
    I have made a Silverlight application which can read data from various URLs. So users of the application who control a website can: FTP text and XML files onto their website put a clientaccesspolicy.xml in their root directory enter their URL in the silverlight application at which point the silverlight application then begins reading data from their site. I would like to extend this to less technical users who do not control a website, aren't adept with FTP, etc. What is the best service on the web that: allows users to publish different kinds of data, e.g. put out text files on web allows Silverlight client access (has clientaccesspolicy.xml set up) Some ideas are: free blog services (although then they are limited to a RSS feed, or the silverlight app would have to do some screen scraping) Google Docs? free cloud services? What free services allow easy publishing of any kind of data on the web and allow Silverlight client access?

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  • AJAX is reloading page on a SharePoint site (SharePoint 2007 AJAX-enabled)

    - by Josh
    I have an AJAX-enabled SharePoint 2007 site. I have also created a user control that has an interactive ajax form. It obviuosly works like a charm locally, but I am trying to get it working on the SharePoint site. The problem is that once I load up the user control on to an aspx page inside SharePoint, the form (which has ajax), causes the page to reload every time a postback occurs. Can someone help point me in the direction of debugging this? - I really need to eliminate the page refreshes and have the ajax work correctly in SharePoint. I read that the ScriptManager has to be in the SharePoint masterpage, but that did not work either... Page still reloads everytime. Thanks.

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  • C#, WinForms: Why aren't KeyDown events chaining up to Form? I have to add event handler to each chi

    - by blak3r
    As i understand it, when a button is pressed it should first invoke the Control which has focus' KeyDown Handler, then it call the KeyDown handler for any Parent controls, all the way up to the main form. The only thing that would stop the chain would be if somewhere along the chain one of the EventHandlers did: e.SuppressKeyPress = true; e.Handled = true; In my case, KeyDown events never get to the main form. I have Form - Panel - button for example. Panel doesn't offer a KeyDown Event, but it shouldn't stop it from reaching the main form right? Right now as a work around I set every single control to call an event handler I wrote. I'm basically trying to prevent Alt-F4 from closing the application and instead minimize it.

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  • What is Silverlight's relationship -- if any -- to WPF?

    - by xarzu
    I was working with a WPF application and I decided that the controls and graphics I wanted to display on the grid might look better if it was a silverlight component. I thought this way because of all the cool silverlight controls that look very flash-like. But now that I have gottem my Visual Studio 2010 set up with SIlverlight, it seems that every silverlight app I can make are ASP.NET in nature. It seems that instead of a cool GUI control to make, Silverlight is telling me that it is primarely a dataflow sort of application for the web. What is the relationship, if any, between WPF and Silverlight. Can I or can I not put a silverlight control into my existing WPF application?

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  • WPF Two Commands handlers, One Command

    - by Aran Mulholland
    Im deriving from a third party control. It is implementing ApplicationCommands.SelectAll. However the behaviour i want is slightly different. there is no virtual method i can override, and when i register a class handler, like so CommandManager.RegisterClassCommandBinding(typeof(MyDerivedControl), new CommandBinding(ApplicationCommands.SelectAll, new ExecutedRoutedEventHandler(OnExecutedSelectAll), new CanExecuteRoutedEventHandler(OnCanExecuteSelectAll))); My methods do not get called. The third party control i am deriving from is marking e.Handled=true; in its command handlers ( i know this cause i have seen the source, but i cant modify it ) What can i do?

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  • Passing parameters to a flash movie inserted in a VB program

    - by Michael
    Hi! I need to insert a Flash movie in a Visual Basic 2008 express form and send parameters to the movie, but am a newbie to VB. The flash movie will plot points sent by VB in a graph. I tried to insert the Shockwave Flash control in the form but cannot find it anywhere. So I inserted the webbrowser control, which I understand can be used to a similar purpose. But how would I send the values of X and Y (coordinates to plot in Flash) to the flash swf? Thanks for any help!

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  • Can a ScatterViewItem dynamically resize to fit its content?

    - by Brett
    We're hosting a control inside of a ScatterViewItem that dynamically changes its size at runtime as a result of having various sub-elements added, removed, and/or collapsed. We would like to have the hosting ScatterViewItem resize as well to properly fit its child controls, but we're having a hard time making this happen. We've tried a number of different things and the closest we've come is hooking into the child control's SizeChanged event and explicitly setting the ScatterViewItem's Width and Height, but this approach still has issues. When you define a ScatterViewItem and its content in XAML, the ScatterViewItem is sized appropriately. We would like to force the same behavior at runtime when its content changes size. Any help would be greatly appreciated. Thanks!

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  • Building Visual studio like application, need inputs..

    - by akjoshi
    Hi, I am working on a Visual studio like application i.e. hava a tolbox, an editor and property grid similar to VS. ser can drag and drop the controls(custom and third party) to the editor window and perform operations like resize, move, align, group etc.; Properties of that control needs to be displayed in property grid and user can update them from there. As per my current understanding I will have to extend the Canvas to create my own editor and and Interface for controls which it supports; Each supported control will have to implemnt this interface so that it can be placed in our editor. Something similar to this - http://www.codeproject.com/KB/WPF/WPFDiagramDesigner_Part4.aspx Looking forward for any kind of help, comment or links.

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  • "Invalid Postback or callback argument" on modifying the DropDownList on the client side

    - by gnomixa
    I know why it's happening and i turned the validation on the page level, but is there a way to turn it off on the control level? "Invalid Postback or callback argument . Event validation is enabled using in configuration or <%@ Page EnableEventValidation="true" %in a page. For security purposes, this feature verifies that arguments to Postback or callback events originate from the server control that originally rendered them. If the data is valid and expected, use the ClientScriptManager.RegisterForEventValidation method in order to register the Postback or callback data for validation."

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  • PowerBuilder Indeterminate Progress Bar

    - by Adam Hawkes
    I have a somewhat-long-running stored procedure being called from a PB application. I want the UI to show an indicator that it is processing, but I don't know the exact progress. That is, I can't say whether it is 10% or 90% done. All I know is when it is done. To give the user something to look at I'd like to put a "Inderterminate" (horizontal) progress bar on the window somewhere. I've looked at the documentation for the built-in HProgressBar control and don't see how to force this behavior. Short of writing my own control or importing another one, is there a way to accomplish this?

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  • Ellipse Drawing WPF Animation

    - by widmayer
    I am developing a control that is a rectangle area and will draw an ellipse in the rectangle area when a trigger occurs. This control will be able to host other controls like, textbox's, buttons, etc. so the circle will be drawn around them when triggered. I want the circle being drawn as an animation like you were circling the inner controls with a pen. My question is whats the best way to accomplish this. I've been doing some research and I could use WPF animation or I could use GDI+ to accomplish the tasks. I am new to WPF animation so that is why I am asking the question.

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  • ASP.NET mvc on mono 2.2

    - by Markus
    Hi, I am having a trouble. I am trying to run asp.net mvc 1.0 on mono 2.2.I have copied the system.web.mvc.dll to bin directory. I have done HttpContext.Current.RewritePath("/Home/Index");. Still I am having te error: Server Error in '/' Application The incoming request does not match any route Description: HTTP 500. Error processing request. Stack Trace: System.Web.HttpException: The incoming request does not match any route at System.Web.Routing.UrlRoutingHandler.ProcessRequest (System.Web.HttpContextBase httpContext) [0x00000] at System.Web.Routing.UrlRoutingHandler.ProcessRequest (System.Web.HttpContext httpContext) [0x00000] at System.Web.Routing.UrlRoutingHandler.System.Web.IHttpHandler.ProcessRequest (System.Web.HttpContext context) [0x00000] at MvcApplication4._Default.Page_Load (System.Object sender, System.EventArgs e) [0x00000] at System.Web.UI.Control.OnLoad (System.EventArgs e) [0x00000] at System.Web.UI.Control.LoadRecursive () [0x00000] at System.Web.UI.Page.ProcessLoad () [0x00000] at System.Web.UI.Page.ProcessPostData () [0x00000] at System.Web.UI.Page.InternalProcessRequest () [0x00000] at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context) [0x00000] Version information: Mono Version: 2.0.50727.1433; ASP.NET Version: 2.0.50727.1433

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