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  • Microsoft Robotics Studio, simple simulation

    - by Arkapravo
    I am soon to start with Microsoft Robotics Studio. My question is to all the gurus of MSRS, Can simple simulation (as obstacle avoidance and wall following) be done without any hardware ? Does MSRS have 3-dimensional as well as 2-dimensional rendering? As of now I do not have any hardware and I am only interested in simulation, when I have the robot hardware I may try to interface it! Sorry for a silly question, I am a MSRS noob, but have previous robotics h/w and s/w experience.

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  • C# Value member property repopulate or Re render the control..

    - by karthik
    Hi.. I just wanted to confirm couple of things. I) Code snippet: cmb1.Datasource= dt; cmb1.Valuemember = "value"; Does the control rendering happens 2 time for the control, 1 more time extra because of the value member getting changed after data source assigned. Is this so? II) How can I trace these re-populations in C#? I just wanted to debug and see and confirm? Example please? Thanks Karthik

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  • How to manually render a Django template for an inlineformset_factory with can_delete = True / False

    - by chefsmart
    I have an inlineformset with a custom Modelform. So it looks something like this: MyInlineFormSet = inlineformset_factory(MyMainModel, MyInlineModel, form=MyCustomInlineModelForm) I am rendering this inlineformset manually in a template so that I have more control over widgets and javascript. So I go in a loop like {% for form in myformset.forms %} and then manually render each field as described on this page http://docs.djangoproject.com/en/dev/topics/forms/#customizing-the-form-template The formset has can_delete = True or can_delete = False depending on whether the user is creating new objects or editing existing ones. Question is, how do I manually render the can_delete checkbox?

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  • SSRS Email Subscription

    - by Lijo
    Hi Team, I have an report to be sent in email using SSRS 2005. I have created subscription through C# code, some time back. It used to send emails successfully. Now, it does not send. There is a message as "The delivery extension for this subscription could not be loaded." [The report is rendering properly when I try with Report Manager.] What all are the possible reasons for this? Please help... Thanks Lijo

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  • Rails message: ActionView::MissingTemplate

    - by rtfminc
    I am getting an error that I cannot figure out: ActionView::MissingTemplate (Missing template cluster/delete_stuff.erb in view path app/views) <...snip trace...> Rendering rescues/layout (internal_server_error) I am "enhancing" others code and am following the convention they set up, where they have have code like: <%= render :partial => "other_stuff" %> And a file named _other_stuff.html.erb and it all works, but when I copy these little snippets, I get the above error. Any ideas? Something is going on here that I need to figure out.

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  • Single Instance Storage layers

    - by Moo
    Hi, I have a data storage requirement which is an excellent candidate for single instance storage and deduplication. Can anyone suggest any .Net compatible libraries or systems which handles SIS and deduplication, either with SQL Server as an actual back end or its own high performance storage engine? What have peoples experiences been with such engines, and are there any pit falls to watch out for? Regards Moo

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  • In ExtJS, how do I place two fieldsets side-by-side in a panel with a hbox layout?

    - by Daniel T.
    In ExtJS, I'm having a little trouble placing two fieldsets side-by-side in a panel with a hbox layout. The hbox layout seems to be unaware of the fieldset's height, and cuts it off, even if I explicitly set the panel's height to something large. Here's what it looks like: The blue border is the hbox panel, and there's 2 fieldsets inside, 'Client Info' and 'Owner Info'. The code is like so (simplified and runnable in Firebug): var clientInfo = { xtype: 'fieldset', defaultType: 'textfield', title: 'Client Info', items: [ { fieldLabel: 'First Name' }, { fieldLabel: 'Last Name' }, { fieldLabel: 'Cell Phone #' }, { fieldLabel: 'Work Phone #' } ] }; var ownerInfo = { xtype: 'fieldset', defaultType: 'textfield', title: 'Owner Info', items: [ { fieldLabel: 'First Name' }, { fieldLabel: 'Last Name' }, { fieldLabel: 'Cell Phone #' }, { fieldLabel: 'Work Phone #' } ] }; new Ext.Panel({ layout: 'hbox', frame: true, height: 400, width: 800, defaults: { flex: 1 }, items: [ clientInfo, ownerInfo ] }).render(document.body); P.S. If you remove defaults: { flex: 1 }, the fieldsets render correctly, but doesn't automatically resize to fit the container, which is something I need. Does anybody know how to fix this rendering issue? Thanks.

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  • Performance benefits of upgrading Richfaces to newer version

    - by peteDog
    I have a client that's running an application based on JBoss 4.0.5, Seam 1.2 and RichFaces 3.0.1. Their system is having performance problems due to the fact that a lot of data is coming back from the server to be displayed on screen and it seems like the rendering of that data is taking forever. The data brought back is displayed in a tabbed interface, but the tabs aren't currently being loaded individually, but all at once. I'm trying to build up a case to present to the client on the benefits of upgrading to never version of RichFaces, which, as I understand it, has added a great number of features related to tabbed panels and being able to use ajax to page the data and load the chunks you actually need to display at the moment, and not the rest that's in other tabs. The move to a newer version of RichFaces will also result in never versions of Jboss and Seam, as the current production build of RichFaces 3.2.1 requires JSF 1.2. IF anyone has some suggestions or experience on performance of current versions RichFaces, paging, etc, I would really appreciate some feedback.

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  • Flash files are playing laggy /Jerky in screensaver

    - by yogesh-chhabra
    I have developed a screen saver for MAC OS X. Screen saver plays flash files. Whene I run screen saver on display resolution higher than 1300 X 1000 then flash files play very jerky / laggy. When I run it in low resolution then files play fine.Even flash files are playing fine in desktop application. This problem is more on 10.6 Snow Leopard. I am unable to find out the reason whether it is OS screensaver engine problem or flash files problem. I know rendering increases on high resolution but there should be solution for this problem

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  • Performance of DrawingVisual vs Canvas.OnRender for lots of constantly changing shapes

    - by romkyns
    I'm working on a game-like app which has up to a thousand shapes (ellipses and lines) that constantly change at 60fps. Having read an excellent article on rendering many moving shapes, I implemented this using a custom Canvas descendant that overrides OnRender to do the drawing via a DrawingContext. The performance is quite reasonable, although the CPU usage stays high. However, the article suggests that the most efficient approach for constantly moving shapes is to use lots of DrawingVisual instances instead of OnRender. Unfortunately though it doesn't explain why that should be faster for this scenario. Changing the implementation in this way is not a small effort, so I'd like to understand the reasons and whether they are applicable to me before deciding to make the switch. Why could the DrawingVisual approach result in lower CPU usage than the OnRender approach in this scenario?

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  • BitBlt code not working

    - by MusiGenesis
    I'm trying to use this code to draw a Bitmap directly onto a PictureBox: Bitmap bmp = (Bitmap)Bitmap.FromFile(@"C:\Users\Ken\Desktop\Load2.bmp"); Graphics grDest = Graphics.FromHwnd(pictureBox1.Handle); Graphics grSrc = Graphics.FromImage(bmp); IntPtr hdcDest = grDest.GetHdc(); IntPtr hdcSrc = grSrc.GetHdc(); BitBlt(hdcDest, 0, 0, pictureBox1.Width, pictureBox1.Height, hdcSrc, 0, 0, (uint)TernaryRasterOperations.SRCCOPY); // 0x00CC0020 grDest.ReleaseHdc(hdcDest); grSrc.ReleaseHdc(hdcSrc); but instead of rendering the Bitmap's contents it just draws a solid block of nearly-black. I'm pretty sure the problem is with the source hDC, because if I change SRCCOPY to WHITENESS in the above code, it draws a solid white block, as expected. Note: this next snippet works fine, so there's nothing wrong with the bitmap itself: Bitmap bmp = (Bitmap)Bitmap.FromFile(@"C:\Users\Ken\Desktop\Load2.bmp"); pictureBox1.Image = bmp;

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  • Configuring Quercus to talk to JavaDB

    - by Dan Williams
    I am trying to get the Quercus PHP engine to connect with the JavaDB. I have successfully deployed Quercus in Glassfish, but I can't get Quercus to successfully connect with my database in JavaDB. Can anyone point me to an article or tutorial that treats this subject?

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  • Django: Prefill a ManytoManyField

    - by Emile Petrone
    I have a ManyToManyField on a settings page that isn't rendering. The data was filled when the user registered, and I am trying to prefill that data when the user tries to change it. Thanks in advance for the help! The HTML: {{form.types.label}} {% if add %} {{form.types}} {% else %} {% for type in form.types.all %} {{type.description}} {% endfor %} {% endif %} The View: @csrf_protect @login_required def edit_host(request, host_id, template_name="host/newhost.html"): host = get_object_or_404(Host, id=host_id) if request.user != host.user: return HttpResponseForbidden() form = HostForm(request.POST) if form.is_valid(): if request.method == 'POST': if form.cleaned_data.get('about') is not None: host.about = form.cleaned_data.get('about') if form.cleaned_data.get('types') is not None: host.types = form.cleaned_data.get('types') host.save() form.save_m2m() return HttpResponseRedirect('/users/%d/' % host.user.id) else: form = HostForm(initial={ "about":host.about, "types":host.types, }) data = { "host":host, "form":form } return render_to_response(template_name, data, context_instance=RequestContext(request)) Form: class HostForm(forms.ModelForm): class Meta: model = Host fields = ('types', 'about', ) types = forms.ModelMultipleChoiceField( widget=forms.CheckboxSelectMultiple, queryset=Type.objects.all(), required=True) about = forms.CharField( widget=forms.Textarea(), required=True) def __init__(self, *args, **kwargs): super(HostForm, self).__init__(*args, **kwargs) self.fields['about'].widget.attrs = { 'placeholder':'Hello!'}

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  • Is Ogre's use of Exceptions a good way of using them?

    - by identitycrisisuk
    I've managed to get through my C++ game programming career so far virtually never touching exceptions but recently I've been working on a project with the Ogre engine and I'm trying to learn properly. I've found a lot of good questions and answers here on the general usage of C++ exceptions but I'd like to get some outside opinions from here on whether Ogre's usage is good and how best to work with them. To start with, quoting from Ogre's documentation of it's own Exception class: OGRE never uses return values to indicate errors. Instead, if an error occurs, an exception is thrown, and this is the object that encapsulates the detail of the problem. The application using OGRE should always ensure that the exceptions are caught, so all OGRE engine functions should occur within a try{} catch(Ogre::Exception& e) {} block. Really? Every single Ogre function could throw an exception and be wrapped in a try/catch block? At present this is handled in our usage of it by a try/catch in main that will show a message box with the exception description before exiting. This can be a bit awkward for debugging though as you don't get a stack trace, just the function that threw the error - more important is the function from our code that called the Ogre function. If it was an assert in Ogre code then it would go straight to the code in the debugger and I'd be able to find out what's going on much easier - I don't know if I'm missing something that would allow me to debug exceptions already? I'm starting to add a few more try/catch blocks in our code now, generally thinking about whether it matters if the Ogre function throws an exception. If it's something that will stop everything working then let the main try/catch handle it and exit the program. If it's not of great importance then catch it just after the function call and let the program continue. One recent example of this was building up a vector of the vertex/fragment program parameters for materials applied to an entity - if a material didn't have any parameters then it would throw an exception, which I caught and then ignored as it didn't need to add to my list of parameters. Does this seem like a reasonable way of dealing with things? Any specific advice for working with Ogre is much appreciated.

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  • ViewData.* and TModel in asp.net MVC

    - by Quintin Par
    After a week of asp.net mvc2, I still haven’t understood the advantages of ViewData.model or rather how I can properly utilize Viewdata. Can some teach me how to use Viewdata properly? Also what’s TModel that’s associated with viewdata? How does one utilize TModel? The viewdata explanation in spark view engine talks about TModel and I couldn’t get a clue of how I can use it in my projects. Can someone help me?

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  • Ensure exclusive access to webservice

    - by Henrik P. Hessel
    Just to be on the safe side, what's the best practice to ensure that only my application has access to my webservice, which is hosted on a public server? Should I implement I shared key or something? My webservice is hosted on Googles App Engine and my Application runs on iPhones and iPads. If you need further information, just ask. Thanks, Henrik

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  • getting started with nosql

    - by radi
    hi , i am new to nosql world i know sql and rdbms very well , i want to get start with nosql so i need to know : where i can start read about nosql (books , online tutorials )? what is the most simple nosql engine i can start with (i am using java)? thanks .

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  • Wire the homepage so that it fires off a Push notification message to my iPhone every time someone l

    - by fwd4
    I looking for a simple way to wire the homepage of my website so that it fires off a Push notification message to my iPhone every time someone lands on the page (just visiting in their browser). I'm aware this could become annoying! I currently send regular notifications to my iPhone using cron and curl to check sites / RSS feeds for change and then fire to to the Prowl API who in turn send it to my iPhone - like so: curl https://prowl.weks.net/publicapi/add -F apikey=$apikey -F priority=$priority -F application="$app" -F event="$eventname" -F description="$description" Could I do something similar from with the HTML of the homepage - call a script on my server which in turn fires a similar curl request above? Maybe with Javascript or PHP? Ideally I'd like the loading and rendering of me webpage to be uninterrupted by the call. Hat tip to Prowl - http://prowl.weks.net/api.php and to flx.me Both of which I use to make what I have already working.

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  • Microsoft.ACE.OLEDB.12.0 has not been Registered" Error

    - by brohjoe
    I'm getting a "The OLE DB provider "Microsoft.ACE.OLEDB.12.0 has not been registered" error. I have the data objects library downloaded and I have "Microsoft Office 12.0 Access database engine Object Library" selected. I'm running the Windows Vista 32-bit operating system. Any ideas would be greatly appreciated.

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  • Help a Python newbie with a Django model inheritance problem

    - by Joshmaker
    I'm working on my first real Django project after years of PHP programming, and I am running into a problem with my models. First, I noticed that I was copying and pasting code between the models, and being a diligent OO programmer I decided to make a parent class that the other models could inherit from: class Common(model.Model): self.name = models.CharField(max_length=255) date_created = models.DateTimeField(auto_now_add=True) date_modified = models.DateTimeField(auto_now=True) def __unicode__(self): return self.name class Meta: abstract=True So far so good. Now all my other models extend "Common" and have names and dates like I want. However, I have a class for "Categories" were the name has to be unique. I assume there should be a relatively simple way for me to access the name attribute from Common and make it unique. However, the different methods I have tried to use have all failed. For example: class Category(Common): def __init__(self, *args, **kwargs): self.name.unique=True Spits up the error "Caught an exception while rendering: 'Category' object has no attribute 'name' Can someone point me in the right direction?

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  • producing pixel-identical images of text between Sun Java and OpenJDK

    - by yuvi
    My release script produces images of the version number to save me the trouble of manually going into the MoinMoin wiki software and changing it by hand for each release. Unfortunately, since the fonts look a little different on each platform's JVM, the result is ugly. I solved the the font inconsistency by using Lucide Sans (comes with every Java system). (Loading Fonts from TTF files was another option, but was buggy on Mac Java). The result is much better, producing the exact same image on Mac/Windows (), but a slightly different one on OpenJDK (). I believe this is caused by OpenJDK having a different font rendering system (as opposed to different fonts). Is there any way I can get all three of my target platforms (Sun Windows, Mac, OpenJDK Linux) to produce images of text that look identical?

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  • Microsoft Robotics Studio, simple simulation ! MSRS Newbie ! ....

    - by Arkapravo
    I am soon to start with Microsoft Robotics Studio. My question is to all the gurus of MSRS, Can simple simulation (as obstacle avoidance and wall following) be done without any hardware ? Does MSRS have 3-dimensional as well as 2-dimensional rendering? As of now I do not have any hardware and I am only interested in simulation, when I have the robot hardware I may try to interface it! Sorry for a silly question, I am a MSRS noob, but have previous robotics h/w and s/w experience.

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  • how to search media file in our system by c#?

    - by Lalit
    Hi, I want to search the media files situated in my system by c#. means I want to create the search engine that will scan all drives (again small question here , how to get the drives on our system by c# code ? )and search the media files like .mp3,.mp4,...etc . How can i do that by c# desktop application?

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  • help with django and accented characters?

    - by Asinox
    Hi guys, i have a problem with my accented characters, Django admin save my data without encoding to something like "&aacute;" Example: if im trying a word like " Canción ", i would like to save in this way: Canci&oacute;n, and not Canción. im usign Sociable app: {% load sociable_tags %} {% get_sociable Facebook TwitThis Google MySpace del.icio.us YahooBuzz Live as sociable_links with url=object.get_absolute_url title=object.titulo %} {% for link in sociable_links %} <a href="{{ link.link }}"><img alt="{{ link.site }}" title="{{ link.site }}" src="{{ link.image }}" /></a> {% endfor %} But im getting error if my object.titulo (title of the article) have a accented word. aught KeyError while rendering: u'\xfa' Any idea ? i had in my SETTING: DEFAULT_CHARSET = 'utf-8' i had in my mysql database: utf8_general_ci thanks, sorry with my English

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  • Rails Routing Broken In Production - Caching of routes.rb suspected

    - by ming yeow
    Hi folks, i have an urgent problem. Essentially, my routing works on my localhost. But when i deployed this to production, the routes does not seem to work correctly. For example, given a new route "/invites" - sometimes i will get a 404, and sometimes it will work correctly. I suspect there is some caching going on somewhere, but i am not sure. Logs: when a page is not found (when the routes are supposed to be accurate) Processing UsersController#network (for 67.180.78.126 at 2010-06-01 09:59:31) [GET] Parameters: {"id"="new"} ActionController::RoutingError (No route matches "/comm/role_playing_games" with {}): app/controllers/application_controller.rb:383:in prev_page_label' app/controllers/application_controller.rb:238:in log_timed_info' app/controllers/users_controller.rb:155:in network' app/controllers/users_controller.rb:151:in network' app/controllers/application_controller.rb:44:in turn_on_query_caching' app/controllers/application_controller.rb:43:in turn_on_query_caching' app/controllers/application_controller.rb:42:in turn_on_query_caching' app/controllers/application_controller.rb:41:in turn_on_query_caching' app/controllers/application_controller.rb:40:in turn_on_query_caching' app/controllers/application_controller.rb:39:in turn_on_query_caching' haml (3.0.6) lib/sass/plugin/rack.rb:41:in `call' Rendering /mnt/app/releases/20100524233313/public/404.html (404 Not Found)

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