Vax-FCTB 2.19.0.220

• net10.0-windows7.0

  • No dependencies.

• net7.0-windows7.0

  • No dependencies.

• net8.0-windows7.0

  • No dependencies.

• net9.0-windows7.0

  • No dependencies.

- 2026/9/29 Text setter no longer leaves a full-selection residue: it did SelectAll -> InsertText -> GoHome, but GoHome only moves the selection Start to (0,0) and keeps End, so every programmatic Text = ... left the whole text selected and the first click into the box "selected everything". The selection is now collapsed to the caret (Selection.End = Selection.Start, then DoCaretVisible) inside the same BeginUpdate block
     - 2026/9/29 Markdown highlighter rewritten around a fenced-code-block state machine: a fence is now a protected region, so "# heading", "- list", "**bold**" and "[link](x)" inside a code block are no longer highlighted as markdown
     - 2026/9/29 Fenced code blocks are highlighted with the language named in the info string (```csharp, ```js, ```sql, ... via the built-in modes), with a guard against a ```markdown fence recursing
     - 2026/9/29 New markdown syntax: __strong__, _emphasis_, autolinks (<https://host>), task list checkboxes (- [x]), ordered lists with ")", thematic breaks with spaces (- - -), backslash-escaped markers; "#" only starts a heading when followed by a space
     - 2026/9/29 Heading style covers the text only: the leading #'s and the optional closing #'s are left unstyled, and the levels are told apart by shade (a scaled font would break the caret/selection/word-wrap geometry of the fixed-width grid)
     - 2026/9/29 Markdown backgrounds and bars are derived from BackColor instead of hardcoded light colours, and are rebuilt when BackColor changes, so a dark theme works; the left bar of a code block follows the text position instead of being glued 2px from the control edge
     - 2026/9/29 Markdown styles are ordered so the control renders them correctly: the block tint is a plain Style (not a TextStyle), so bold/italic/code nested in a quote or a code block are no longer swallowed by the container
     - 2026/9/29 AutoIndentNeeded handles markdown: the line after a list item is indented (AutoIndentEventArgs can only add whitespace, so the "- " marker is not copied); blockquotes are not indented
     - 2026/9/29 Markdown no longer widens the highlight range to the visible range on every keystroke; set HighlightingRangeType = VisibleRange (as the samples do) if you want the whole viewport re-highlighted
     - 2026/9/29 Rebuilding the markdown styles now clears the text first: ClearStyle removes by style identity, so with the highlighter already pointing at new style objects the old ones stayed on the chars and DrawString threw ArgumentException on a freed brush
     - 2026/9/29 StyledChar.AddStyle no longer bumps LastStyleIndex when the style is already on the char, which left a null in Styles and silently hid every style added to that char afterwards
     - 2026/9/29 GetStylesOfChar no longer throws NullReferenceException for a char that carries no style
     - 2026/9/29 Breaking: MarkdownCodeBlockStyle and MarkdownHeadingStyle are replaced by MarkdownBlockStyle (background + left bar, draws no text); MdCodeInlineStyle is renamed MdInlineCodeStyle, and MdAutoLinkStyle, MdUnderscoreItalicStyle and MdTaskListDoneStyle are new
     - 2026/9/29 TextBox migration: the 15 public properties a WinForms form needs but FCTB lacked are implemented, so a TextBox can be swapped for a FastColoredTextBox without touching the call site: MaxLength, CharacterCasing, CanUndo, Modified, HideSelection, PasswordChar, UseSystemPasswordChar, PlaceholderText, PreferredHeight, ScrollBars, ShortcutsEnabled, TextAlign, AutoCompleteMode, AutoCompleteSource, AutoCompleteCustomSource
     - 2026/9/29 Lines now returns string[] (was IList<string>) and has a setter, matching TextBoxBase.Lines
     - 2026/9/29 Removed the `new bool RightToLeft` shadow that threw NotImplementedException: the inherited Control.RightToLeft (System.Windows.Forms.RightToLeft) is used again
     - 2026/9/29 ForceUpperCase is now a shorthand for CharacterCasing = Upper (it was previously only applied on insert, and is now honoured for Lower/Normal too)      - 2026/9/25 New AllowProportionalFont property (default false): SetFont no longer rejects non-monospace fonts when enabled (rendering/caret/wrap already use per-char widths; tab/column-selection/hscroll remain approximate)
     - 2026/9/25 New TextRenderingHint property (default SystemDefault) applied in OnPaint: lets hosts force ClearType/AntiAlias to remove small-size text aliasing (SystemDefault can degrade on the double-buffered surface)
     - 2026/9/25 CharSizeCache.GetCharSize is now thread-safe (lock): the non-concurrent Dictionary could be corrupted by concurrent font measurement (e.g. parallel tests)
     - 2026/9/25 TextStyle classic (non-IME) rendering advanced x by `dx` which was never set (always 0), stacking every char of a style run on the same x; a folded line (drawn as one FoldedBlockStyle run) collapsed its text at the line start. Now advances by GetCharWidth per char
     - 2026/9/25 Folded block marker now uses per-char widths (CJK/mixed text): FoldedBlockStyle drew the box with a fixed CharWidth, so with UseCJK the collapsed line's text fell outside the box (box shifted right)
     - 2026/9/25 Word wrap now recalculated when the client width changes (OnSizeChanged): resizing the control (scrollbar toggling, layout pass, folding-induced row height changes) previously left stale wrap cut-offs and lines could overlap
     - 2026/9/19 Undo/Redo fixes: undo history now keeps the most recent edits when the 200-entry limit is exceeded (previously kept the oldest), RemoveLines undo restores removed content even when the document becomes empty, single-line document is preserved after RemoveLines
     - 2026/9/19 Markdown highlighter fixes: fenced code blocks now match across lines (missing Singleline), headings no longer swallow the next line, inline code no longer spans lines, images no longer double-styled as links, italic no longer fires on math asterisks (2 * 3 * 4)
     - 2026/9/19 Assembly version now matches the NuGet package (was 0.0.0.0); xunit regression test suite added (FastColoredTextBox.Tests)
     - 2026/9/19 Reliability: GDI brush leaks on language switch fixed, Ruler disposes event subscriptions, SaveToFile safe for empty documents and on write failure, EncodingDetector uses ReadExactly and no longer returns obsolete UTF-7, iterative Undo/Redo (no stack overflow on long autoUndo chains), Text/Length newline consistency, compiled regex caching for highlighting and auto-indent
     - 2026/9/11 Added native Markdown syntax highlighting (Language.Markdown) with bold+color heading levels, inline code, fenced code blocks with border, blockquotes, strikethrough, links, images, lists, and HR
     - 2026/9/7 Horizontal scrolling right: text no longer slides over the line number area; CJK lines now position the first visible char by actual char widths (no left gap)
     - 2026/9/3 Undo/Redo core logic refactored (position accuracy, cross-line support)
     - Column selection mode IndexOutOfRangeException fixed
     - Default padding (2px) matches WinForms TextBox
     - Localization support for Find/Replace/GoTo/Hotkeys forms (EN/ZH)
     - Chinese labels shortened to match English width
     - Label z-order fixed (no longer overlaps controls)
     - Redo shortcut changed to Ctrl+Y (standard Windows convention)
     - .NET 10.0 support added
     - 2026/7/23 "Select all" problem when evaluating text property/修正设置Text属性全选问题
     - 2025/12/22 Wordwrap bug fix/修复换行错误
     - CJKL mix wordwrapping almost perfect/中日韩拉丁字母混合换行基本完美
     - Targeting NET7.0-10.0
     - Restructed the code and minor optimization