11/8/2022 0 Comments Net framework v4.0.30319![]() ![]() Response.Write(".NET Framework The version is " & & ".") ![]() Private Sub Default_Load(sender As Object, e As EventArgs) Handles Me.Load The test code used in this article is as follows net framework 4.5 or 4.6, It is suggested that your 4.0 Upgrade the project to the highest version, Avoid self deception, Use more new types and methods, And we know that this is 4.5 or 4.6 The problem of, instead of 4.0, Unless you have one that hasn't been upgraded 4.5 Machine. That is to say, your program is running on 4.5 edition, But you still cheat yourself that you're running 4.0. Therefore, In the target version is 4.0 You can't access 4.5 The type of, Is really just visual studio One limitation of doing. In addition ,4.5 and 4.6 The upgrade, It's all right 4.0 Type modification, Such as .Control Added BeginRenderTracing() Method. net 4.5, Even if the target version is 4.0,4.5 New types will also be loaded in net 4.5 Introduced, Of course not in 4.0 Use inīut if you use reflection to search for assemblies, Will find IReadOnl圜ollection Actually, it's loaded in. IReadOnl圜ollection The generic interface is. ![]() In the target version is 4.0 In the project, You can't access it by common sense 4.6 Classes and methods introduced. net 4.6, Again 4.6 It's also a local upgrade. Install Visual Studio 2015 It will also be installed with. net framework 4.5 Run by common language (CLR)4.0、 Some new classes and patches of old classes, therefore Environment.Version Still back 9.42000. net framework 4.5 It's a local upgrade, It was upgraded directly. ![]()
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