This question already has answers here:
LINQ on the .NET 2.0 Runtime
(8 answers)
Closed 9 years ago.
I made an application in .net framework 4.0, visual studio 2010, but due to some reason i changed the framework from 4.0 to 2.0 but now i am getting error that
The type or namespace name 'Linq' does not exist in the namespace 'System' (are you
missing an assembly reference?)
LINQ is very much used in this project, now i want to know that is there any way to use LINQ with .net 2.0.Need help.Thanks.
Linq is not supported in dotnet 2.0
You can use LinqBridge, which provides an alternative implementation of the Linq to Objects operators. (note: it works only for Linq to Objects, not for Linq to XML or Linq to XML...)
Related
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`PowerShell.Create()` returning null
(3 answers)
Closed last year.
I migrated from .NET Framework 4.8 to .NET 6.
System.Management.Automation.PowerShell.Create();
now returns null.
Is there a new package i need to reference or other solution?
Removing the old References and adding the NuGet package
Microsoft.PowerShell.SDK solved this issue.
This question already has answers here:
HttpUtility does not exist in the current context
(10 answers)
Closed 5 years ago.
I'd like to use HttpUtility.HtmlDecode() to process some strings in my application, but for some reason Visual Studio doesn't seem to know where it's at.
I'm fairly new to C# so I'm just guessing I've missed something like importing a library, but I don't even know what to Google.
I've tried using System.Web but it only seems to contain AspNetHostingPermission and friends, no HttpUtility.
I'm using VS2015 Community Edition on a Windows 10 machine.
I've tried "using System.Web" but it only seems to contain "AspNetHostingPermission" and friends, no HttpUtility.
You simply need to reference the DLL System.Web, right click References > Add Reference > Assemblies > Framework > System.Web
Also check you're not targeting the Client Profile, in which System.Web.dll is not available. You can target the full framework in Project Properties.
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Does C# 6.0 work for .NET 4.0?
(5 answers)
Closed 6 years ago.
Is it possible to use Roslyn compiler and new features of C# 6.0 with old versions of .NET Runtime (for example, .NET 4.0)?
For example, I want use the expression-bodied members (int S => x + y; instead of int S { get { return x + y; } }) in .NET 4.0 application.
The new C# 6.0 features don't depend upon framework support so yes, you an app compiled with the C# 6.0 compiler will run on .NET 4.0, assuming of course you specify you are targeting .NET 4.0 in your project file in the first place.
As of now Roslyn C# compiler and tooling cannot run on .NET 4.0
You can certainly cross-compile for .NET 4.0, but to run the compiler itself you need at least .NET 4.5
This question already has answers here:
Does C# 6.0 work for .NET 4.0?
(5 answers)
Closed 6 years ago.
Is it possible to use Roslyn compiler and new features of C# 6.0 with old versions of .NET Runtime (for example, .NET 4.0)?
For example, I want use the expression-bodied members (int S => x + y; instead of int S { get { return x + y; } }) in .NET 4.0 application.
The new C# 6.0 features don't depend upon framework support so yes, you an app compiled with the C# 6.0 compiler will run on .NET 4.0, assuming of course you specify you are targeting .NET 4.0 in your project file in the first place.
As of now Roslyn C# compiler and tooling cannot run on .NET 4.0
You can certainly cross-compile for .NET 4.0, but to run the compiler itself you need at least .NET 4.5
This question already has answers here:
What are the correct version numbers for C#?
(13 answers)
Closed 8 years ago.
I am confused with both the C# version and .NET framework version. In other words, I want to know the relationship with C# version and .NET framework. E.g: which is C# version in .NET framework 3.0?
I am not sure what your actual question is, but if it is what are the current versions..
C#: 3.0
.NET Framework: 3.5
You might also want to take a look at this breakdown chart. It provides the Framework, language and CLR relations.
C# 1.0 - Managed Code
C# 2.0 - Generics, Nullable Types, Anonymous Delegates, Partial Classes / Methods
C# 3.0 - LINQ, Lambda Expressions, Implicit Variable Typing, Streamlined Object Initialization
// Related? somewhat perhaps
.net 2 C# 2
.net 3 C# 2
.net 3.5 C# 3