Windows Forms (WinForms) in C# Deep Dive + Practice Tests

Explore building rich GUI with WinForms controls and graphics. Master anchor, dock, events, and validation, using controls like button, label, text box, and error provider.

Learn to work with common winforms controls, including buttons with validation, accept/cancel behavior, radiobutton grouping, and controls like combobox, date time picker, month calendar, mask text box, and list box.

Explore graphics programming in Windows Forms with GDI objects: pen, brush, font, and image, to draw lines, rectangles, ellipses, polygons, and arcs using the paint event and graphics context.

Draw interactive lines by capturing start and end points on mouse down and up, render in paint, store lines in a serializable collection, and save or load drawings.

Learn to create and synchronize menu strip, context menu strip, tool strip, and status strip in windows forms, including drop down opening, accelerators, and basic UI guidelines.

Learn to build modal and modeless dialog boxes in Windows Forms, including a position dialog for coordinates and common dialogs for a notepad app.

Implement a modeless dialog in a Windows Forms app, use a find dialog, manage the owner, and display with show while avoiding multiple instances.

Explore the classic multi-document interface in Windows Forms by building an MDI container with multiple child forms, window layouts, and menu merging, and compare with modern tab controls.

Design a parent form to host common UI elements like a top toolbar or background image, then create child forms that inherit from it so updates propagate automatically.

Create a login dialog in a Windows Forms app, validate credentials, and open the main form only after successful login. Use modal dialogs or an MDI approach to control access.

Declare and embed images, text, and strings as resources, access them through generated resource classes, and store user-specific window settings in project settings.

Set up a notify icon in a Windows Forms app to show a system tray icon with a show and exit context menu, and manage closing with a boolean flag.

Discover how timer enables periodic updates to user interface, how background worker runs tasks in the background, how file system watcher tracks directory changes, and how process launches external apps.

Master drag and drop in winforms by enabling drop on controls, handling drag enter and drag drop events, and processing file data formats to populate a listbox with file names.

Build a WinForms app using tree view and list view to display departments and their employees. Leverage a static data generator and dynamic node population.