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Wpf Cannot Create An Instance Of Usercontrol


Terms of UseSite FeedbackPrivacy Policy Powered by Progress Sitefinity When the designer starts, it attempts to use reflection to create all the specified resources. Is it recommended to use this object as a basis for a model object? Not the answer you're looking for? have a peek here

This workaround makes me super happy!Like this:Like Loading...Related Category: csharp, WPF |Comment (RSS) |Trackback3 Comments hyeroglyph says: November 27, 2011 at 1:15 pmThank you very much. I'm not sure why the above isn't working, but perhaps we should reverse the logic (if not in designer mode, initialize), so something like this: ModelData() { if (!DesignerProperties.GetIsInDesignMode(this)) { do Reinstaling the controls solved the first error for me but the second one is still there.So me too hoping for some Telerik team assistance Ujjwal Lahoti 67 posts Member since: Jan wpf xaml inheritance designer share|improve this question edited May 14 '09 at 4:42 asked May 14 '09 at 4:37 jchadhowell 75211020 Is ReviewClient the parent assembly for the XAML?

Wpf Cannot Create An Instance Of Usercontrol

How to hide without triggering opportunity attacks? Is there a better way? Could not create an instance of type '{0}' .NET Framework 3.5 Other Versions Visual Studio 2010 This error occurs when the XAML compiler fails to instantiate the specified type. My current passions are HTML5, Javascript, ASP.NET MVC, Windows Store and WP8 mobile apps.

My converter class was not public. Could you verify that you are using the same versions or send me a screenshot with yours as I believe this can be caused by different version of SL. Thanks! In the constructor of the ModelData class, add a line like this: if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this)) { return; // Or initialize some properties to default values that are appropriate for design mode. }

just declare BusinessLogic admintasks; outside the constructor and assign the value inside. Explore the Telerik Public Issue Tracking system and vote to affect the priority of the items. So after the first build, there are some project settings modified which is causing the error. Clicking Here m “„ trifonius (39) Offline Mar 19, 2009 @ 3:21 AM #9 Re: Could not create an instance of type 'ModelData' Thanks for your explanation.

Follow the status of features or bugs in PITS and vote for them to affect their priority. It could be useful) if (System.ComponentModel.DesignerProperties.GetIsInDesignMode(this)) return; Both steps help the xaml designer from loading components that may have issues with the being in a debug state. @Heinzi is pretty much Ujjwal Lahoti 67 posts Member since: Jan 2010 Posted 08 Feb 2010 Link to this post I couldn't upload the screenshot showing the error, using attachment feature, so here is the Please see the xmlns:header on top part of image.

Cannot Create An Instance Of Custom Control Wpf

share|improve this answer answered Jan 4 '10 at 5:45 Andy Dent 13.1k35685 add a comment| up vote 2 down vote Another cause. You can send your theme there too.Thanks for inspiration again!Reply to this comment hyeroglyph says: November 27, 2011 at 7:55 amHi,Thanks for the great article. Wpf Cannot Create An Instance Of Usercontrol As has been mentioned earlier in this thread, you couldn't reproduce this problem on some PCs and now this problem is reproducible. Cannot Create An Instance Of Usercontrol In Xaml The problem has happened on multiple PCs and different users (see comments by other forum members in this thread).

The content you requested has been removed. navigate here We will continue investigating the issues and let you know as soon as we have a solution or at least explanation. The problem is that WPF cannot instantiate it, which (probably) means that some exception is thrown during instantiation. Anyways, I am using the same configuration as Frederic, except that I am running Windows XP Pro 32 bit.

It should give you some more information about what is wrong Permalink Posted 3-Jan-11 23:35pm Pawel Gielmuda4.4K Rate this: Please Sign up or sign in to vote. share|improve this answer answered Jan 14 '14 at 17:00 Gauthier 584216 updated with actual fix to mark as answer after edit is approved. –simba Jan 16 '14 at 10:10 Expected an attribute value Closing tag for element '<{0}>' was not found The attribute '{0}' is not defined in the markup compatibility namespace Element '{0}' not defined in the markup compatibility http://awendigital.com/not-create/cannot-create-an-instance-of-custom-control-wpf.html remove the abstract keyword from the base classe).

Visual Studio 2008 SP 1 (ver: 9.0.30729.1) 2. Don't forget to recompile afterwards. –Heinzi Jan 14 '14 at 16:49 | show 3 more comments 1 Answer 1 active oldest votes up vote 6 down vote I've had similar issues The following XAML produces the error message: Looks like to me there is some initialization or environmental variables problem.

If the problem was solved for Ljubo by just reinstalling the controls, then it looks like there is some instability in the controls...

I would be really greatful. The application compiles fine and the xaml page also loads fine. Thanks, Jacob Miroslav Nedyalkov Admin 1718 posts Posted 10 Feb 2010 Link to this post Hi Everybody,  Jacob suggested a work-around that might help - to add a hidden RadButton before this would help us a lot.

Could large but sparsely populated country control its borders? Best wishes, George the Telerik team See What's New in RadControls for WPF in Q3 2010 on Tuesday, November 16, 2010 11:00 AM - 12:00 PM EST or 10:00 PM - A way tosolve this is to change your code as follows: Original: public UserControlConstructor() { InitializeComponent(); //Code that throws the exception }

Change To: public UserControlConstructor() { this contact form How can I turn rolled oats into flour without a food processor?

Can anyone help me to figure out what is the problem? Is the OBJECTID in an Oracle Geodatabase table the primary key? It's the only part outside the catch-all block. –Heinzi Jan 14 '14 at 16:34 2 @samba: The reference is fine, and it compiles fine. Ujjwal Lahoti 67 posts Member since: Jan 2010 Posted 07 Feb 2010 Link to this post I tried reinstalling the WPF Controls, but alas the problem persists.....

BusinessLogic admintasks = new BusinessLogic(); is the only part of the instantiation logic that is not protected by your try-catch. Fields that can be ordered in more than one way Parents disagree on type of music for toddler's listening How can I turn rolled oats into flour without a food processor? My control class had a static field that was initialized from resources, like this: static Color s_ImgColor = (Color)TheApp.Resources["PhoneForegroundColor"]; That would throw a null reference exception in XAML editor, since the Terms Privacy Security Status Help You can't perform that action at this time.

You really make my first WPF experiences excellent by the great book and the speed and thoroughness of answering my questions! “„ lordodie (1) Offline Feb 2, 2010 @ 4:07 PM That works! Boyan Admin 758 posts Posted 08 Feb 2010 Link to this post Hello Ujjwal Lahoti, Although we tried tried the project you sent and also tried with other projects on 2 March 4, 2010, 11:32 am by Rhyous So, I recently started trying to implement the application I am developing using an MVVM model.However, I ran into this annoying problem where when

i.e. This is the XAML code. Can anyone help? Is every parallelogram a rectangle ??

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed show your xaml. 2. Frederic Gos 3 posts Member since: May 2006 Posted 05 Feb 2010 Link to this post Exact same problem here. Ujjwal Lahoti 67 posts Member since: Jan 2010 Posted 05 Feb 2010 Link to this post I tried this on another PC and created the project from scratch.

Help, my office wants infinite branch merges as policy; what other options do we have? How to include multimedia files in beamer "Shields at 10% one more hit and..." What? This caused the designer to fail. The reason you have to use DependencyObject in this case is because the DesignerProperties are attached properties, and you can't attach properties to bare .NET objects.