csharp

A collection of C# Windows Forms (WinForms) learning projects built with .NET 8. Each folder is a self-contained mini-app that demonstrates a single UI control, dialog, or layout concept — a hands-on walk through building desktop applications in C#.

These are learning exercises: small, focused, and easy to read one at a time.

Requirements

• .NET 8 SDK (or later)
• Windows (WinForms is Windows-only)
• Visual Studio 2022 or JetBrains Rider (optional, for the designer)

Getting started

Each project is self-contained with its own .sln and .csproj, so you can open and run it directly:

# run a single project (e.g. the ComboBox example)
cd ComboBox/ComboBox
dotnet run

Or open the .sln for any project in Visual Studio and press F5.

Projects

Project	What it demonstrates
hellofourm	Hello World — the basic WinForms window and startup flow
centeringFourm	Centering a form on the primary screen
FourmUsingCode	Building a form entirely in code (no designer)
multiFourms	Working with multiple forms in one application
BtnWithTextBox	Button + TextBox interaction
checkboxes	CheckBox controls
RaidoBoxOnPanel	RadioButtons grouped inside a panel
ComboBox	ComboBox control
ListBoxes	ListBox control
ListCheckBox	CheckedListBox control
NumericUpDown	NumericUpDown control
TrackerBar	TrackBar control
ProggressBars	ProgressBar control
TextBoxMasked	MaskedTextBox — enforcing input masks
PictureBox	PictureBox control
LinkLable	LinkLabel control
Times	Timer control (animating a control)
DateTimeTool	DateTimePicker control
MounthCalanderTool	MonthCalendar control
ColorControl	Working with colors
ColorDialogs	ColorDialog for picking colors
OpenFileDialog	OpenFileDialog for selecting files
FileterOpenFileDialog	OpenFileDialog with file-type filters
saveFileDialog	SaveFileDialog for saving files
FileCopier	Copying files through a dialog
MessageBoxTest	MessageBox usage
PanelAndGroupBox	Panel and GroupBox layout containers
FlowLayoutPaneL	FlowLayoutPanel dynamic layout
ControlsArray	Managing arrays of controls
ForEeachAllControls	Iterating over all controls with foreach
RemoveControls	Adding/removing controls at runtime
DataManagementApp	A simple data-management form (ListBox add/remove)
RunStuff	Scratch/starter project skeleton
WinFormsApp	Default WinForms template app

Notes

• All WinForms projects target net8.0-windows with UseWindowsForms.

License

Free to use and modify.