Fix bugs in DropdownControl, ButtonControl, and PromptControl

- DropdownControl: PageUp/PageDown now moves by _maxVisibleItems instead of 1
- ButtonControl: ProcessKey now checks IsEnabled before handling Enter/Space
- PromptControl: Remove spurious InputChanged events on Enter and Escape
- PromptControl: Fix Backspace/LeftArrow scroll condition to only trigger when cursor leaves visible area
- Update EXAMPLES.md to reflect current DemoApp features

Author: nickprotop

SharpConsoleUI/Controls/ButtonControl.cs

@@ -166,6 +166,8 @@ public Color? BorderColor
 		/// <inheritdoc/>
 		public bool ProcessKey(ConsoleKeyInfo key)
 		{
+			if (!_enabled) return false;
+
 			if (key.Key == ConsoleKey.Enter || key.Key == ConsoleKey.Spacebar)
 			{
 				// Trigger the click event

SharpConsoleUI/Controls/DropdownControl/DropdownControl.Keyboard.cs

@@ -111,7 +111,7 @@ public bool ProcessKey(ConsoleKeyInfo key)
 				case ConsoleKey.PageUp:
 					if (_isDropdownOpen && currentHighlight > 0)
 					{
-						int newIndex = Math.Max(0, currentHighlight - ( 1));
+						int newIndex = Math.Max(0, currentHighlight - _maxVisibleItems);
 						_highlightedIndex = newIndex;
 						EnsureHighlightedItemVisible();
 						Container?.Invalidate(true);
@@ -122,7 +122,7 @@ public bool ProcessKey(ConsoleKeyInfo key)
 				case ConsoleKey.PageDown:
 					if (_isDropdownOpen && currentHighlight < _items.Count - 1)
 					{
-						int newIndex = Math.Min(_items.Count - 1, currentHighlight + ( 1));
+						int newIndex = Math.Min(_items.Count - 1, currentHighlight + _maxVisibleItems);
 						_highlightedIndex = newIndex;
 						EnsureHighlightedItemVisible();
 						Container?.Invalidate(true);

SharpConsoleUI/Controls/PromptControl.cs

@@ -249,15 +249,14 @@ public bool ProcessKey(ConsoleKeyInfo key)
 					HasFocus = false;
 				}
 				Container?.Invalidate(true);
-				InputChanged?.Invoke(this, _input);
 				return true;
 			}
 			else if (key.Key == ConsoleKey.Backspace && cursorPos > 0)
 			{
 				_input = _input.Remove(cursorPos - 1, 1);
 				int newCursorPos = cursorPos - 1;
 				_cursorPosition = newCursorPos;
-				if (newCursorPos < scrollOffset + (_inputWidth ?? _input.Length))
+				if (newCursorPos < scrollOffset)
 				{
 					SetScrollOffset(scrollOffset - 1);
 				}
@@ -290,7 +289,7 @@ public bool ProcessKey(ConsoleKeyInfo key)
 			{
 				int newCursorPos = cursorPos - 1;
 				_cursorPosition = newCursorPos;
-				if (newCursorPos < scrollOffset + (_inputWidth ?? _input.Length))
+				if (newCursorPos < scrollOffset)
 				{
 					SetScrollOffset(scrollOffset - 1);
 				}
@@ -312,7 +311,6 @@ public bool ProcessKey(ConsoleKeyInfo key)
 			{
 				HasFocus = false;
 				Container?.Invalidate(true);
-				InputChanged?.Invoke(this, _input);
 				return true;
 			}
 			else if (!char.IsControl(key.KeyChar))

docs/EXAMPLES.md

@@ -336,16 +336,16 @@ dotnet run --project Examples/DemoApp
 ```
 
 **Key Features:**
-- Fluent `WindowBuilder` pattern
-- Multiple window types (Log, System Info, Clock, File Explorer, Command, etc.)
-- `LogViewerControl` with real-time updates
-- `TreeControl` for file system navigation
-- `DropdownControl` with styled items
-- `ListControl` with selection handling
+- Six independent windows running simultaneously (Terminal, Canvas, DataGrid, System Info, Image Viewer, and the launcher)
+- `TerminalControl` with PTY-backed shell
+- `CanvasControl` with interactive starfield and plasma effects
+- `TableControl` (DataGrid) with 10,000 virtual rows, sorting, filtering, and cell editing
+- `ImageControl` rendering images directly in the terminal
+- Full markup syntax showcase with colors, decorations, and gradients
 - Async window threads with `CancellationToken`
-- Theme switching
+- Theme switching and window taskbar navigation
 
-**Windows Available:** F1-F9 to open various demo windows
+**Windows Available:** Ctrl+O to open demo windows, Alt+1-6 to switch
 
 ---