Decompressing password-protected ZIP files with .NET 4.5
Unfortunately not. There is no support within the .Net Framework 4.5 for password protected zip files. In this case you have to switch to one of the well known 3rd party libraries.
.net-4.5
Why doesn’t generic ICollection implement IReadOnlyCollection in .NET 4.5?
There are probably several reasons. Here are some: Huge backwards compatibility problems How would you write the definition of ICollection<T>? This looks natural: interface ICollection<T> : IReadOnlyCollection<T> { int Count { get; } } But it has a problem, because IReadOnlyCollection<T> also declares a Count property (the compiler will issue a warning here). Apart from … Read more
Which versions of SSL/TLS does System.Net.WebRequest support?
When using System.Net.WebRequest your application will negotiate with the server to determine the highest TLS version that both your application and the server support, and use this. You can see more details on how this works here: http://en.wikipedia.org/wiki/Transport_Layer_Security#TLS_handshake If the server doesn’t support TLS it will fallback to SSL, therefore it could potentially fallback to … Read more
Differences between .NET 4.0 and .NET 4.5 in High level in .NET
What is new in .NET Framework 4.5 & What’s new and expected in .NET Framework 4.5: Support for Windows Runtime Support for Metro Style Applications Support for Async Programming Garbage Collector Improvements Faster ASP.NET Startup Better Data Access Support WebSockets Support Workflow Support – BCL Support differences in ASP.NET in these frameworks Compare What’s New … Read more
What does the Microsoft.Bcl.Build NuGet package do?
From looking at Microsoft.Bcl.Build.targets, it has a bunch of project configuration targets, eg: EnsureBindingRedirects – Determine which references are opted in for binding redirects, and update the app.config with them BclBuildValidateNugetPackageReferences – This target validates that any Nuget packages installed in the current project also have their dependencies (transitive dependencies) installed in the current project. … Read more
HttpClient.GetAsync with network credentials
You can pass an instance of the HttpClientHandler Class with the credentials to the HttpClient Constructor: using (var handler = new HttpClientHandler { Credentials = … }) using (var client = new HttpClient(handler)) { var result = await client.GetAsync(…); }
SignalR Typenamehandling
This can be done by taking advantage of the fact that your types and the SignalR types are in different assemblies. The idea is to create a JsonConverter that applies to all types from your assemblies. When a type from one of your assemblies is first encountered in the object graph (possibly as the root … Read more
Large Object Heap Compaction, when is it good?
Allocations >= 85 KB go onto the LOH. Compacting the LOH is not bad — it’s just that LOH fragmentation isn’t something the great majority of apps need to worry about, so for them it’s not worth the expense of compacting. Fragmentation occurs when you allocate several large objects and they all get taken from … Read more
Getting System.Net.Mail.MailMessage as a MemoryStream in .NET 4.5 beta
Managed to figure out how to get this working again in .NET 4.5 beta. The private API Send() method in MailMessage has changed to: internal void Send(BaseWriter writer, bool sendEnvelope, bool allowUnicode) Please find updated code below. Assembly assembly = typeof(SmtpClient).Assembly; Type mailWriterType = assembly.GetType(“System.Net.Mail.MailWriter”); using (MemoryStream stream = new MemoryStream()) { ConstructorInfo mailWriterContructor = … Read more
Create zip file from byte[]
After a little more playing around and reading I was able to figure this out. Here is how you can create a zip file (archive) with multiple files without writing any temporary data to disk: using (var compressedFileStream = new MemoryStream()) { //Create an archive and store the stream in memory. using (var zipArchive = … Read more