i used visual studio 2010 and i need to add System.Windows.Forms in my project but when i am trying to add this then it shows error i.e.
please give me solution for this
4
- What kind of project do you have? How are you adding the reference?Dai– Dai2014-02-22 08:09:05 +00:00Commented Feb 22, 2014 at 8:09
- Provide more details on what you are trying to doDexters– Dexters2014-02-22 08:09:37 +00:00Commented Feb 22, 2014 at 8:09
- How did you do, and what is System_Window_Forms ??AymenDaoudi– AymenDaoudi2014-02-22 08:09:39 +00:00Commented Feb 22, 2014 at 8:09
- i am working in Visual Studio 2010 Asp.net Web Application and i am trying to add reference from Website --> Add Reference --> .NET Component. But here System.Window.Forms is not available in listchitrakant sahu– chitrakant sahu2014-02-22 09:19:10 +00:00Commented Feb 22, 2014 at 9:19
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4 Answers
Problem: You are trying to add the System_Windows_Forms from COM tab of Reference Manager window.
Problem here:
Solution : You need to Add System.Windows.Forms from Assemblies -> Framework Tab of Reference Manager window.
Select as below: 
Comments
A console application does not automatically add a reference to System.Windows.Forms.dll.
Right-click your project in Solution Explorer and select Add reference... and then find System.Windows.Forms and add it.
and
Did you try to add it from the COM-tab? Find the System.Windows.Forms.dll in the .NET-tab instead!
answered Feb 22, 2014 at 8:09
Ramesh Rajendran
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2 Comments
chitrakant sahu
but i am using visual studio 2010
Ramesh Rajendran
so what? that's not a problem for your question.
In VS 2010. Add Reference -> ".NET" tab -> System.Windows.Forms
If you cant see it there, then check to what .NET framework version your project is set (Add reference should show you to what version it filters libraries or check project properties.) and make sure you have that version installed.
How to find installed versions: http://msdn.microsoft.com/en-us/library/hh925568(v=vs.110).aspx
Edit: Also, if you are using Vista or later, you should migrate your project to .NET 4 if it already isn't.
.NET 4 installer: http://www.microsoft.com/en-us/download/details.aspx?id=17851
.NET 3.5 installer: http://www.microsoft.com/en-us/download/details.aspx?id=21
If you are using Windows 8 or 8.1 here is how you can enable older framework versions: http://msdn.microsoft.com/en-us/library/hh506443(v=vs.110).aspx
Comments
Please don't do this. You mention you have a web application and you are adding windows form DLL to it. This is not correct way of doing whatever it is that you are doing. What exactly are you trying to accomplish?
