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

String.LastIndexOf(needle, startIndex) behavior would benefit from some clarification Open

area-System.Globalization Pri3

dotnet/dotnet-api-docs#7751 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
The documentation of BigInteger.RightShift describes an algorithm that is supposed to be equivalent to this operator, but this does not seem to be the case Open

area-System.Numerics doc-bug Pri3

dotnet/dotnet-api-docs#7756 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect output for XmlElement.InnerText property in example code Open

area-System.Xml doc-bug help wanted Pri3

dotnet/dotnet-api-docs#7776 · 4 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
DiagnosticSource Class only applies to NetCore on documentation, but nuget package shows dependency to 4.6.1 Open

area-System.Diagnostics.Tracing documentation Pri3 untriaged

dotnet/dotnet-api-docs#7788 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Example in Object.MemberwiseClone method is obsolete Open

area-System.Runtime Pri3 untriaged

dotnet/dotnet-api-docs#7805 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Exceptions for `WebSocket.SendAsync(..)` are not mentioned Open

area-System.Net Pri3 untriaged

dotnet/dotnet-api-docs#7809 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Setting SlidingExpiration on a CacheEntry has some seemingly undocumented behavior Open

area-Extensions-Caching documentation Pri3

dotnet/dotnet-api-docs#7830 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
List of extension methods missing generic specializations Open

area-Infrastructure docs-experience Pri3

dotnet/dotnet-api-docs#7827 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Default hash and iteration count not mentioned the constructors of Rfc2898DeriveBytes Constructors Open

area-System.Security help wanted Pri3

dotnet/dotnet-api-docs#7829 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Documentation for ActivitySource.CreateActivity/StartActivity missing important information about behavior for default Context Open

area-System.Diagnostics.Tracing Pri3

dotnet/dotnet-api-docs#7834 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Feature requests for API browser docs site re giving Feedback and Constructor/Method signatures Open

area-Infrastructure docs-experience Pri3

dotnet/dotnet-api-docs#7835 · 6 comments · 2 reactions · 0 assignees · Indexed Sep 15, 2026
Document stored exceptions Open

area-Infrastructure discussion docs-experience Pri1

dotnet/dotnet-api-docs#7840 · 17 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
NullTargetBlock never Completes Open

area-System.Threading.Tasks help wanted Pri3

dotnet/dotnet-api-docs#7864 · 7 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Console logging doesn't work unless there's a delay Open

area-Extensions-Logging help wanted Pri3 untriaged

dotnet/dotnet-api-docs#7904 · 6 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Add note to avoid using this dialog Open

area-WinForms Pri3 untriaged

dotnet/dotnet-api-docs#7900 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Redo some DbBatch doc comments Open

area-System.Data Pri3 untriaged

dotnet/dotnet-api-docs#7910 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Code snippet for Mutex.OpenExisting in .NET Core calls non-existing methods Open

area-System.Security help wanted Pri3

dotnet/dotnet-api-docs#7913 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Enumerable.Min<TSource>() and Enumerable.Max<TSource>() wording regarding null for reference types is misleading Open

area-System.Linq Pri3

dotnet/dotnet-api-docs#7922 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Enumerable.Min<TSource>() documentation should mention null filtering behavior Open

area-System.Linq doc-bug Pri3

dotnet/dotnet-api-docs#7923 · 5 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Document SaveFileDialog.OpenFile() failure behvaior on various platforms. Open

area-WinForms Pri3 untriaged

dotnet/dotnet-api-docs#7935 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Wrong exception message on indexing collections. Open

area-System.Collections help wanted Pri3

dotnet/dotnet-api-docs#7937 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect documentation for System.Reflection.Emit.OpCodes.Bge_Un* Open

area-System.Reflection.Emit help wanted Pri3

dotnet/dotnet-api-docs#7951 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
TraceSwitch value is not read from config Open

area-System.Diagnostics documentation Pri3

dotnet/dotnet-api-docs#7970 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Add explainers to the summaries for Double/Single's IsNormal, IsSubnormal, IsFinite, IsInfinity and IsNegative,; consider adding a shared table to all IEEE-754 functions pages Open

area-System.Runtime Pri3 untriaged

dotnet/dotnet-api-docs#7962 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Incorrect documentation for JsonIgnoreCondition.WhenWritingNull Open

area-System.Text.Json doc-bug Pri3

dotnet/dotnet-api-docs#7964 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Is the enumeration order of the Stack<T> collection well defined? Open

area-System.Collections help wanted Pri3

dotnet/dotnet-api-docs#8083 · 5 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Docs should specify that names of Mutex, AutoResetEvent, and Semaphores may not contain '/' when running on Unix Open

area-System.Threading Pri3 untriaged

dotnet/dotnet-api-docs#8022 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Mention HttpClient's special behaviour when used by Blazor Open

area-System.Net Pri3 untriaged

dotnet/dotnet-api-docs#8021 · 1 comment · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Missing SynchronizationContext info - null outside main thread Open

area-System.Runtime Pri3 untriaged

dotnet/dotnet-api-docs#8028 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve docs for UpdateSourceTrigger.LostFocus Open

area-WPF Pri3 untriaged

dotnet/dotnet-api-docs#8093 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
TaskCompletionSource TrySetResult incorrectly states it will return false is the Task is disposed Open

area-System.Threading.Tasks Pri3

dotnet/dotnet-api-docs#8108 · 4 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Reinstate lost doc comments Open

area-Meta Pri3

dotnet/dotnet-api-docs#8125 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Remarks for Task should be modernized Open

area-System.Threading.Tasks help wanted Pri3

dotnet/dotnet-api-docs#8138 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Improve or remove code examples for TripleDES, DES, and RC2. Open

area-System.Security Pri3 untriaged

dotnet/dotnet-api-docs#8140 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
BitConverter.ToString(byte[]) states being affected by endianness - how so? Open

area-System.Numerics Pri3 untriaged

dotnet/dotnet-api-docs#8143 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Systemd & WindowsServices in Microsoft.Extensions.Hosting are missing in .NET 5, 6, 7 docs Open

area-Extensions-Hosting help wanted Pri3

dotnet/dotnet-api-docs#8145 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
RegularExpressionAttribute.IsValid has incorrect Exceptions section Open

area-System.ComponentModel.DataAnnotations Pri3 untriaged

dotnet/dotnet-api-docs#8164 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Hashset Remove is not throwing on enumeration Open

area-System.Collections doc-update Pri3

dotnet/dotnet-api-docs#8177 · 4 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026
Upgrade from `v4.7.2` to LTS (or current) version Open

area-System.Data dotnet-target-version Pri3 untriaged

dotnet/dotnet-api-docs#8189 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Include default values in API docs Open

:watch: Not Triaged area-System.IO Pri3

dotnet/dotnet-api-docs#8255 · 6 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Documentation is incorrect/ambigious Open

area-System.ComponentModel Pri3

dotnet/dotnet-api-docs#8202 · 3 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
EventLogReader.ReadEvent does not document null-returning behaviour, IDisposable info, nor give usage example Open

area-System.Diagnostics Pri3 untriaged

dotnet/dotnet-api-docs#8206 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
NullReferenceException "Remarks" example doesn't build in .NET 6 Open

area-System.Runtime Pri3

dotnet/dotnet-api-docs#8231 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Copy over TarEntryFormat docs if necessary Open

area-System.Formats.Tar Pri3

dotnet/dotnet-api-docs#8236 · 5 comments · 0 reactions · 1 assignee · Indexed Sep 15, 2026
Application.ThreadException Event example doesn't follow AppDomain.UnhandledException text Open

area-WinForms Pri3 untriaged

dotnet/dotnet-api-docs#8238 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Documentation for ExpandoObject explicit interface implementation missing IDictionary<> members Open

area-System.Dynamic.Runtime Pri3 untriaged

dotnet/dotnet-api-docs#8250 · 2 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
URL to dotnet warnings not formatted correctly Open

area-Infrastructure Pri3 untriaged

dotnet/dotnet-api-docs#8252 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Upgrade from `v4.0` to LTS (or current) version Open

area-Meta dotnet-target-version Pri3 untriaged

dotnet/dotnet-api-docs#8267 · 1 comment · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Example for SetUnhandledExceptionMode(UnhandledExceptionMode, Boolean) doesn't use the boolean Open

area-WinForms Pri3 untriaged

dotnet/dotnet-api-docs#8269 · 0 comments · 0 reactions · 0 assignees · Indexed Sep 15, 2026
Mention BinaryPrimitives on BitConverter page Open

area-System.Runtime Pri3 untriaged

dotnet/dotnet-api-docs#8281 · 0 comments · 1 reaction · 0 assignees · Indexed Sep 15, 2026

dotnet/dotnet-api-docs

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