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Article ID: 910832 - Last Review: October 9, 2011 - Revision: 4.0

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SYMPTOMS

When you work with nested generic types in C# in Microsoft Visual Studio 2005, the IDE stops responding. Additionally, the computer shows 100 percent CPU utilization.

This problem does not apply to all nested generic types. However, this problem occurs in the case where there is a generic base class that has a nested derived class that inherits from the base class where the type parameter is of type derived. For example, the following code causes the IDE to stop responding.
class Base<T>
{
	class Derived : Base<Derived> 
	{
	}
}
You may experience this problem when you modify code because the IDE may parse the unfinished code as the previous code example. For example, when you add a method in this base class and type the opening brace, the IDE parses the code as the following code.
class Base<T>
{
	void Merge(T other)
	{  

			}

	class Derived : Base<Derived> 
	{
	}

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual Studio 2005 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
cslangsvc.dll8.0.50727.463,665,92017-Nov-200512:12:26x86

WORKAROUND

To work around this problem, use one of the following methods:
  • Type the base class after the derived class.
  • Declare each class in a separate file.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

MORE INFORMATION

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684  (http://support.microsoft.com/kb/824684/ ) Description of the standard terminology that is used to describe Microsoft software updates

APPLIES TO
  • Microsoft Visual Studio 2005 Standard Edition
  • Microsoft Visual Studio 2005 Professional Edition
  • Microsoft Visual C# 2005 Express Edition
Keywords: 
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