dotnet/dotnet-api-docs

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.NET API reference documentation (.NET 8+)

Stars: 949
Forks: 1.7k
Open beginner issues: 0
Indexed issues: 1.6k
Avg merge: 2d 19h
Merged PRs (30d): 52

Dominant language: C#
License: No license data
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 15, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: help wanted

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1574 open issues indexed

Vector2.Reflect : Missing: Normal must be normalized Open

area-System.Numerics untriaged

dotnet/dotnet-api-docs#10844 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
GetMemory and GetSpan should mention non-zero inited buffers Open

area-System.IO.Pipelines untriaged

dotnet/dotnet-api-docs#10847 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Thread-safety implications of using EqualityComparer<TValue>.Default in ConcurrentDictionary Open

area-System.Collections untriaged

dotnet/dotnet-api-docs#10852 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Undocumented restrictions on allowed filenames in the 'path' argument Open

area-Extensions-Configuration

dotnet/dotnet-api-docs#10861 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
The System.Security.AccessControl.PropagationFlags enum seems to have bad descriptions of its enumerated values. Open

area-System.Security untriaged

dotnet/dotnet-api-docs#10867 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Missing information that `Validator.ValidateObject` / `Validator.TryValidateObject` also calls `IValidatableObject.Validate` Open

area-System.ComponentModel.DataAnnotations untriaged

dotnet/dotnet-api-docs#10873 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Type.IsConstructedGenericType documentation is wrong -- at least for Framework 4.8 Open

area-System.Reflection untriaged

dotnet/dotnet-api-docs#10874 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
HttpUtility.ParseQueryString ambiguous return type. Should be HttpValueCollection instead of NameValueCollection. Open

area-System.Collections untriaged

dotnet/dotnet-api-docs#10876 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
if ((stringValue.IndexOf("pink") > -1)) is inefficient Open

area-WinForms untriaged

dotnet/dotnet-api-docs#10880 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
ReadOnlySequence<T>.Split methods should document their throws. Open

area-System.Buffers untriaged

dotnet/dotnet-api-docs#10889 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Better document the NotSupportedException Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#10890 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Some pages' "Methods" lists were not correctly version specific Open

area-Infrastructure docs-experience

dotnet/dotnet-api-docs#10897 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Collections like Lists are cannot be used with HashCode.Combine(collection); Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#10908 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MethodBase.Invoke can resolve overrides? Open

area-System.Reflection untriaged

dotnet/dotnet-api-docs#10912 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
[Documentation] System.Security.Permissions.SecurityPermissionAttribute is not in System.Runtime.dll Open

area-System.Security untriaged

dotnet/dotnet-api-docs#10919 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`WindowsIdentity` references .NET Framework code and has bad example code Open

area-System.Security untriaged

dotnet/dotnet-api-docs#10927 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
In CustomValidationAttribute description of validatorType is useless Open

area-System.ComponentModel.DataAnnotations untriaged

dotnet/dotnet-api-docs#10928 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
builder.Services.AddHttpClient DefaultName not clear Open

area-System.Net untriaged

dotnet/dotnet-api-docs#10929 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
What are invalid characters when using "My.Computer.FileSystem.GetFiles"? Open

area-System.IO untriaged

dotnet/dotnet-api-docs#10935 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
DbConnectionStringBuilder.ShouldSerialize() doesn't state purpose Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#10943 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
`Regex.EnumerateMatches` docs missing `TimeoutException` Open

area-System.Text.RegularExpressions untriaged

dotnet/dotnet-api-docs#10944 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
`System.String.Remove` doesn't mention a change introduced in .NET 6.0. Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#10951 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Documentation for Control.DeviceDPI needs link to info about DPI Open

area-WinForms untriaged

dotnet/dotnet-api-docs#10953 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Need definition for "top level" Open

area-WinForms untriaged

dotnet/dotnet-api-docs#10954 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Call information page Open

area-System.Runtime.CompilerServices untriaged

dotnet/dotnet-api-docs#10956 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
dotnet/dotnet-api-docs.System.ComponentModel projects spitting lotsa Warnings/Messages Open

area-System.ComponentModel

dotnet/dotnet-api-docs#10961 · 2 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
system.IO.ports 9.0.2 not support serial port Open

area-System.IO.Ports untriaged

dotnet/dotnet-api-docs#10971 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
MinLength/MaxLength description is too specific Open

area-System.ComponentModel.DataAnnotations untriaged

dotnet/dotnet-api-docs#10981 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
RichTextBox.ShowSelectionMargin documentation having conflict with actual behavior Open

area-WinForms untriaged

dotnet/dotnet-api-docs#10988 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Usage of memorycache Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#10997 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Please say how to set the Display Name Open

area-System.ComponentModel.DataAnnotations untriaged

dotnet/dotnet-api-docs#11014 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Docs for all overloads of ToFrozenDictionary should contain the same remark. Open

area-System.Collections untriaged

dotnet/dotnet-api-docs#11019 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
SmoothingMode is not settable in some graphics contexts. Open

area-System.Drawing untriaged

dotnet/dotnet-api-docs#11024 · 3 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
HttpListenerResponse.ContentType exception information is wrong or outdated Open

area-System.Net untriaged

dotnet/dotnet-api-docs#11070 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
When using `ThreadPool.QueueUserWorkItem` with a method that throws an exception, the entire application crashes and exits unexpectedly. This behavior is not documented and can lead to unintended application terminations. Open

area-System.Threading untriaged

dotnet/dotnet-api-docs#11084 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
No way to add a dll path in linux is explain Open

area-System.Runtime.InteropServices untriaged

dotnet/dotnet-api-docs#11086 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Documentation for OrderedDictionary<TKey,TValue> Open

area-System.Collections

dotnet/dotnet-api-docs#11087 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Error in documentation of ZipArchive methods Open

area-System.IO.Compression untriaged

dotnet/dotnet-api-docs#11090 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Distinguish between LTS, STS, and preview package-provided APIs Open

area-Infrastructure untriaged

dotnet/dotnet-api-docs#11091 · 1 comment · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Process.StartTime is documented as not being accessible after the process has exited, but it is Open

area-System.Diagnostics.Process untriaged

dotnet/dotnet-api-docs#11092 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Sample code does not compile; methods outside of class definition Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#11109 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Update documentation of `Type.IsAssignableFrom` and `Type.IsAssignableTo` when used with ref struct types Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#11113 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Quibbles about the text Open

area-System.IO untriaged

dotnet/dotnet-api-docs#11114 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Test app Open

area-WPF untriaged

dotnet/dotnet-api-docs#11119 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
No images in any of the GUI elements under System.Windows.Forms Open

area-WinForms untriaged

dotnet/dotnet-api-docs#11122 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
GetCharCount either isn't simulating, or isn't simulating as described Open

area-System.Text.Encoding

dotnet/dotnet-api-docs#11124 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
AssemblyBuilderAccess.RunAndSave Open

area-System.Reflection.Emit untriaged

dotnet/dotnet-api-docs#11128 · 0 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
BC30456: Close no es un elemento de httpWebRequest Open

area-System.Net untriaged

dotnet/dotnet-api-docs#11130 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Lack of information on task status examples Open

area-System.Threading.Tasks untriaged

dotnet/dotnet-api-docs#11134 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Missing dispose of MemoryFailPoint? Open

area-System.Runtime untriaged

dotnet/dotnet-api-docs#11151 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026

dotnet/dotnet-api-docs

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