Initial publish of WinForms for .NET 5. (#96)

* Migrate inprogress winforms contnet from docs

* Fix preview note

* Fix vb code

* Minor fixes to keyboard articles

* Minor adjustment to overview

* Test redirects for 4.0 -> 5.0

* adjust links

* Add mouse input section winforms (#81)

* Update projects to .NET 5

* Update keyboard desc

* Finish mouse events

* Add remaining mouse articles;code

* finish mouse input

* minor fixes

* Remove branch restriction (#82)

* Update build-validation.yml (#84)

* Update build-validation.yml (#85)

* Fix vb proj

* Add WinForms tutorial (#91)

* redirect between overview

* New create an app tutorial

* Fix markdown

* Fix preserve view setting

* Add forms articles (#93)

* Add forms articles

* Fix warnings

* Winforms publish (#95)

* Prep TOC for publish

* Updated date

* Automatic how-to topic type

* Update desc/headers

* Fix links

* Fix build errors

* Add preview note

* Update toc landing page

* Convert old style project files

* update download links

* Apply suggestions from code review

Co-authored-by: Genevieve Warren <[email protected]>

* Adjust number key

* Update dotnet-desktop-guide/net/winforms/overview/index.md

* Try toc position task via bookmark

* Improve images

* Remove sentence

* File redirects

Co-authored-by: Genevieve Warren <[email protected]>

dotnet-desktop-guide/net/winforms/controls/overview.md

@@ -0,0 +1,41 @@
+---
+title: "Overview of Using Controls"
+description: Learn about how controls are used in Windows Forms for .NET. Controls are reusable components that provide functionality to the user. Many ready-to-use controls are provided. You can also make new controls.
+ms.date: 10/26/2020
+ms.topic: overview
+dev_langs: 
+  - "csharp"
+  - "vb"
+helpviewer_keywords: 
+  - "Windows Forms, controls"
+  - "controls [Windows Forms]"
+  - "custom controls [Windows Forms]"
+---
+# Overview of using controls (Windows Forms .NET)
+
+Windows Forms controls are reusable components that encapsulate user interface functionality and are used in client-side, Windows-based applications. Not only does Windows Forms provide many ready-to-use controls, it also provides the infrastructure for developing your own controls. You can combine existing controls, extend existing controls, or author your own custom controls. For more information, see [Types of custom controls](custom.md).
+
+[!INCLUDE [desktop guide under construction](../../includes/desktop-guide-preview-note.md)]
+
+## Adding controls
+
+Controls are added through the Visual Studio Designer. With the Designer, you can place, size, align, and move controls. Alternatively, controls can be added through code. For more information, see [Add a control (Windows Forms)](how-to-add-to-a-form.md).
+
+## Layout options
+
+The position a control appears on a parent is determined by the value of the <xref:System.Windows.Forms.Control.Location> property relative to the top-left of the parent surface. The top-left position coordinate in the parent is `(x0,y0)`. The size of the control is determined by the <xref:System.Windows.Forms.Control.Size> property and represents the width and height of the control.
+
+Besides manual positioning and sizing, various container controls are provided that help with automatic placement of controls.
+
+For more information, see [Position and layout of controls](layout.md).
+<!-- TODO
+
+## Control events
+
+-->
+
+## See also
+
+- [Position and layout of controls](layout.md)
+- [Label control overview (Windows Forms .NET)](labels.md)
+- [Add a control (Windows Forms .NET)](how-to-add-to-a-form.md)