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Visual Studio 2010 Design Editor Performance

Posted By:      Posted Date: September 02, 2010    Points: 0   Category :ASP.Net
Are there some recommended settings or updates that address the performance of the Visual Studio 2010 Design Editor.  The smallest changes max CPU usage for literally minutes Are there third party editors available?  

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Issues with Visual Studio 2010 editor


hi all,

I am having a weird problem with VS 2010. I am using the premium edition.

It seems that none of the asp controls <asp:..> tag are recognized by the editor. I keep getting a green underline under each control name. To check this, I have created a brand new web site targeting .NET framework 4.0 and even in the auto-generated pages, none of the asp controls is recognized. I am also unable to see the properties of any control if I click inside the tag (at an attribute). All I get is the ID of the button and the tag <HTML ELEMENT>! Furthermore, when I drop an ASP control from the toolbox, the attribute "ID" is not generated. Only when I switch to the design view that I can get to see the properties of the control and the ID is set automatically. The message for the green underline says: Element 'Button' is not a known element. This can occur if there is a compilation error in the Web Site, or the web.config file is missing.

Does anyone know what is going on?





Improving the Start-up Performance of the WPF and Silverlight Designer in Visual Studio 2010 Beta 2


IMPORTANT NOTE: the Beta and Release Candidate builds of Visual Studio 2010 are now obsolete, since Visual Studio 2010 has now released to manufacturing.

See http://www.microsoft.com/visualstudio/en-us/download


NOTE: The Release Candidate and RTM builds of Visual Studio 2010 does not need this configuration change

This post is to let you know about a configuration change (registry switch) which you can use to improve the startup performance of the WPF and Silverlight Designer in Visual Studio 2010 Beta 2.

1. Since this was a late-breaking change, you may experience some instability or increased Virtual Memory usage in some Visual Studio scenarios when using it. If you see such instabilities, please try removing the configuration change, and let us know about the problem you saw (you can do this by replying to this posting or by raising a bug on Connect).

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Visual Studio 2010 - Design Mode Error - "Error Creating Control"



I am using Visual Studio 2010.  I was debugging a web application and an exception happened and VS 2010 froze.  I ended the VS 2010 in the task manager and when I went back to developing, I found on every form for every ASP.net control I get:


Error Creating Control -

Error HRESULT E_FAIL has been returned from a call to a COM component.


Also I am unable to edit  the form or add anything from the toolbox.


Any help on this matter will be appreciated.





Unknown server tag - controls not rendering in visual studio 2010 design surface


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At the top of my .ascx file I have:

<%@ Assembly Name="$SharePoint.Project.AssemblyFullName$" %>

<%@ Assembly Name="Microsoft.Web.CommandUI, Version=, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>

<%@ Register TagPrefix="SharePoi

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How do I hide objects in design mode? (without using blend) Visual Studio 2010 for Silverlight

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Visual Studio 2010 WPF Editor constantly freezing



when I work with the Visual Studio 2010 Ultimate Edition WPF XAML editor Visual Studio constantly freezes for more than one minute.

Impossible to work with this. This affect only occurs when the WPF editor is opened. The problem starts as soon as I start to edit the XAML code in the text editor.

What can I do?



Visual Studio 2010 SP1 Performance Issues After Upgrade



I was unhappy with VS 2010 performance on my machine:

OS Name    Microsoft Windows XP Professional
Version    5.1.2600 Service Pack 3 Build 2600
System Type    X86-based PC
Processor    x86 Family 6 Model 37 Stepping 5 GenuineIntel ~2393 Mhz
Total Physical Memory    4,096.00 MB

Graphics: Intel HD graphics, internal 128mb


Basically the UI kept hanging when closing tabs on the workspace or under general

navigation of UI.


I eventually found this fix:


which suggested turning off hardware rendering and it worked a treat.

General UI responsiveness was massively improved.

I see that this was recognised and VS comes with SW rendering as standard now for SP1 on XP.

However the upgrade to SP1 seems to have brought this problem back even though hardware rendering is disabled!

Has anyone else noticed this behaviour?

Is there any suggestions?


Here is my info from VS:

Microsoft Visual Studio 2010
Version 10.0.40219.1 SP1Rel
Microsoft .NET Framework
Version 4.0.30319 SP1Rel

Installed Version: Premium


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Code spelling checker extension for visual studio 2010

Building a spelling checker for source code as an extension for visual studio 2010.

is it possible to convert whole visual studio 2008 web site project to visual studio 2010 web site p


is it possible to convert whole visual studio 2008 web site project to visual studio 2010 web site project


my current project references




i have a very annoying iis problem

iis server stops working until app pool is recycled


i am hoping that new visual studio (net framework 4.0) may solve this very annoying unsolveable problem


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