CodeEditorLib 1.1

CodeEditorLib v1.1.0

Second public release — adds a minimap, Go To Line dialog, new themes, new editor properties, and file I/O helpers.

---

What's new in 1.1

Minimap panel A real-time code overview panel rendered on the right side of the editor, similar to what you'd see in VS Code. Shows a syntax-colored miniature of the full document with a viewport highlight indicator. Click or drag to navigate. Cached rendering keeps it smooth. Toggle it with ShowMinimap.

Go To Line dialog A borderless, theme-aware dialog for jumping to a specific line. Includes a live line preview and an interactive slider. Trigger it with ShowGotoDialog() or programmatically with GotoLine(lineNumber). Also bound to Ctrl+G inside the editor.

6 built-in themes (up from 2) Light and Dark are still there. Added: Monokai, Solarized Dark, Solarized Light, Nord, and Dracula. Switch by name with ThemeName = "nord" or use ThemeRegistry to enumerate all available themes. Custom themes still work the same way — subclass EditorTheme.

Word wrap New WordWrap property. Off by default.

Read-only mode New ReadOnly property. The context menu and editing keys respect it automatically.

Tab size New TabSize property. Defaults to 4.

Current-line highlight New HighlightCurrentLine property. On by default.

File I/O helpers OpenFile(path) and SaveFile(path) — load or save the editor content directly from/to a file path.

Clipboard helpers Cut(), Copy(), Paste(), SelectAll() — wrappers if you're building a menu or toolbar.

---

Full feature list

13 built-in languages C#, C++, Java, JavaScript, Python, PHP, Go, Rust, Visual Basic, HTML, CSS, SQL, XML. Language auto-detection by file extension is still included — open a .py file and it sets itself.

Themes Light, Dark, Monokai, Solarized Dark, Solarized Light, Nord, Dracula. Switching is one line. Custom themes: subclass EditorTheme and register with ThemeRegistry.

Undo/Redo Stack-based, up to 500 actions. CanUndo and CanRedo for syncing toolbar buttons.

Auto-indent and auto-brackets Auto-indent matches the previous line's indentation on Enter. Auto-brackets closes (, {, and [ automatically. Both can be disabled.

Find & Replace Built-in dialog (ShowFindDialog() / ShowReplaceDialog()), or call FindNext() and ReplaceAll() programmatically. Supports case-sensitive and whole-word matching.

Line numbers Separate panel, scrolls in sync, width adjusts automatically.

Minimap Real-time document overview with viewport indicator and click/drag navigation. Toggle with ShowMinimap.

Go To Line Dialog or programmatic via GotoLine(lineNumber). Ctrl+G shortcut built in.

Code formatting IndentSelection(), OutdentSelection(), ToggleComment() — work on the current selection or current line.

Events CaretPositionChanged, CodeTextChanged, LanguageChanged, FindReplaceCompleted

---

Getting started

Download CodeEditorLib.dll below and add it as a reference. No NuGet, no extra dependencies — just System.Windows.Forms and System.Drawing.

var editor = new CodeEditorControl { Dock = DockStyle.Fill };
editor.LanguageName = "CSharp";
editor.Theme = new DarkTheme();
Controls.Add(editor);

Switching themes by name

editor.ThemeName = "dracula";   // or "monokai", "nord", "solarizeddark", etc.

Using the minimap and Go To Line

editor.ShowMinimap = true;      // visible by default
editor.ShowGotoDialog();        // shows the dialog

editor.GotoLine(42);            // jump directly

File I/O

editor.OpenFile(@"C:\project\main.cs");
editor.SaveFile(@"C:\project\main.cs");

Other new properties

editor.WordWrap             = false;
editor.ReadOnly             = false;
editor.TabSize              = 4;
editor.HighlightCurrentLine = true;

Full usage and examples are in the README.

---

Requirements

• Windows
• .NET Framework 2.0 or higher

---

Downloads

File	Description
CodeEditorLib_1.1.zip	The compiled library, ready to reference
CE++_Setup_v1.1.exe	The compiled GUI, ready to use
Source Code.zip	Full source code

---

Known issues

• Syntax highlighting on very large files (10k+ lines) has a slight delay — the highlight timer is set to 300ms, which helps but isn't instant
• No built-in TypeScript support yet
• The Find dialog doesn't support regex patterns, only plain text and whole-word matching

---

If something's broken or behaving unexpectedly, open an issue with a small repro case and I'll take a look.

# CodeEditorLib v1.1.0

Second public release — adds a minimap, Go To Line dialog, new themes, new editor properties, and file I/O helpers.

---

What's new in 1.1

Minimap panel
A real-time code overview panel rendered on the right side of the editor, similar to what you'd see in VS Code. Shows a syntax-colored miniature of the full document with a viewport highlight indicator. Click or drag to navigate. Cached rendering keeps it smooth. Toggle it with ShowMinimap.

Go To Line dialog
A borderless, theme-aware dialog for jumping to a specific line. Includes a live line preview and an interactive slider. Trigger it with ShowGotoDialog() or programmatically with GotoLine(lineNumber). Also bound to Ctrl+G inside the editor.

6 built-in themes (up from 2)
Light and Dark are still there. Added: Monokai, Solarized Dark, Solarized Light, Nord, and Dracula. Switch by name with ThemeName = "nord" or use ThemeRegistry to enumerate all available themes. Custom themes still work the same way — subclass EditorTheme.

Word wrap
New WordWrap property. Off by default.

Read-only mode
New ReadOnly property. The context menu and editing keys respect it automatically.

Tab size
New TabSize property. Defaults to 4.

Current-line highlight
New HighlightCurrentLine property. On by default.

File I/O helpers
OpenFile(path) and SaveFile(path) — load or save the editor content directly from/to a file path.

Clipboard helpers
Cut(), Copy(), Paste(), SelectAll() — wrappers if you're building a menu or toolbar.

---

Full feature list

13 built-in languages
C#, C++, Java, JavaScript, Python, PHP, Go, Rust, Visual Basic, HTML, CSS, SQL, XML. Language auto-detection by file extension is still included — open a .py file and it sets itself.

Themes
Light, Dark, Monokai, Solarized Dark, Solarized Light, Nord, Dracula. Switching is one line. Custom themes: subclass EditorTheme and register with ThemeRegistry.

Undo/Redo
Stack-based, up to 500 actions. CanUndo and CanRedo for syncing toolbar buttons.

Auto-indent and auto-brackets
Auto-indent matches the previous line's indentation on Enter. Auto-brackets closes (, {, and [ automatically. Both can be disabled.

Find & Replace
Built-in dialog (ShowFindDialog() / ShowReplaceDialog()), or call FindNext() and ReplaceAll() programmatically. Supports case-sensitive and whole-word matching.

Line numbers
Separate panel, scrolls in sync, width adjusts automatically.

Minimap
Real-time document overview with viewport indicator and click/drag navigation. Toggle with ShowMinimap.

Go To Line
Dialog or programmatic via GotoLine(lineNumber). Ctrl+G shortcut built in.

Code formatting
IndentSelection(), OutdentSelection(), ToggleComment() — work on the current selection or current line.

Events
CaretPositionChanged, CodeTextChanged, LanguageChanged, FindReplaceCompleted

---

Getting started

Download CodeEditorLib.dll below and add it as a reference. No NuGet, no extra dependencies — just System.Windows.Forms and System.Drawing.

var editor = new CodeEditorControl { Dock = DockStyle.Fill };
editor.LanguageName = "CSharp";
editor.Theme = new DarkTheme();
Controls.Add(editor);

Switching themes by name

editor.ThemeName = "dracula";   // or "monokai", "nord", "solarizeddark", etc.

Using the minimap and Go To Line

editor.ShowMinimap = true;      // visible by default

editor.ShowGotoDialog();        // shows the dialog
editor.GotoLine(42);            // jump directly

File I/O

editor.OpenFile(@"C:\project\main.cs");
editor.SaveFile(@"C:\project\main.cs");

Other new properties

editor.WordWrap             = false;
edito...

CodeEditorLib 1.0

CodeEditorLib v1.0.0

First public release.

I've been using this internally for a while and it's stable enough to put out. It does what it says - gives you a proper code editor control inside a WinForms app without having to wire up anything from scratch.

---

What's in this release

13 built-in languages C#, C++, Java, JavaScript, Python, PHP, Go, Rust, Visual Basic, HTML, CSS, SQL, XML. Language auto-detection by file extension works too, so if the user opens a .py file you don't have to set it manually.

Light and Dark themes Both included. Switching is one line. Making your own theme is just subclassing EditorTheme and filling in the colors.

Undo/Redo Stack-based, goes back up to 500 actions. CanUndo and CanRedo properties make it easy to keep toolbar buttons in sync.

Auto-indent and auto-brackets Auto-indent kicks in on Enter and matches the indentation of the previous line. Auto-brackets closes (, {, and [ automatically. Both can be turned off if they get in the way.

Find & Replace Built-in dialog, or you can call FindNext() and ReplaceAll() programmatically. Supports case-sensitive and whole-word matching.

Line numbers Rendered in a separate panel on the left, scrolls in sync with the editor content. Width adjusts automatically as line count grows.

Code formatting IndentSelection(), OutdentSelection(), ToggleComment() — all work on the current selection or the current line if nothing is selected.

Events CaretPositionChanged, CodeTextChanged, LanguageChanged, FindReplaceCompleted — enough to build a proper status bar and track dirty state.

---

Getting started

Download CodeEditorLib.dll below and add it as a reference. That's the only file you need at runtime. No NuGet, no extra dependencies — just System.Windows.Forms and System.Drawing which you already have.

var editor = new CodeEditorControl { Dock = DockStyle.Fill };
editor.LanguageName = "CSharp";
editor.Theme = new DarkTheme();
Controls.Add(editor);

Full usage and examples are in the README.

---

Requirements

• Windows
• .NET Framework 2.0 or higher

---

Downloads

File	Description
CodeEditorLib_1.0.zip	The compiled library, ready to reference
CE++_Setup_v1.0.exe	The compiled GUI, ready to use
Source Code.zip	Full source code

---

Known issues

Nothing critical. A few things I know about and plan to fix in the next release:

• Syntax highlighting on very large files (10k+ lines) has a slight delay — the highlight timer is set to 300ms which helps, but it's not instant
• No built-in TypeScript support yet (it's on the list)
• The Find dialog doesn't support regex patterns, only plain text and whole-word matching

---

If something's broken or behaving unexpectedly, open an issue with a small repro case and I'll take a look.

# CodeEditorLib v1.0.0

First public release.

I've been using this internally for a while and it's stable enough to put out. It does what it says — gives you a proper code editor control inside a WinForms app without having to wire up anything from scratch.

---

What's in this release

13 built-in languages
C#, C++, Java, JavaScript, Python, PHP, Go, Rust, Visual Basic, HTML, CSS, SQL, XML. Language auto-detection by file extension works too, so if the user opens a .py file you don't have to set it manually.

Light and Dark themes
Both included. Switching is one line. Making your own theme is just subclassing EditorTheme and filling in the colors.

Undo/Redo
Stack-based, goes back up to 500 actions. CanUndo and CanRedo properties make it easy to keep toolbar buttons in sync.

Auto-indent and auto-brackets
Auto-indent kicks in on Enter and matches the indentation of the previous line. Auto-brackets closes (, {, and [ automatically. Both can be turned off if they get in the way.

Find & Replace
Built-in dialog, or you can call FindNext() and ReplaceAll() programmatically. Supports case-sensitive and whole-word matching.

Line numbers
Rendered in a separate panel on the left, scrolls in sync with the editor content. Width adjusts automatically as line count grows.

Code formatting
IndentSelection(), OutdentSelection(), ToggleComment() — all work on the current selection or the current line if nothing is selected.

Events
CaretPositionChanged, CodeTextChanged, LanguageChanged, FindReplaceCompleted — enough to build a proper status bar and track dirty state.

---

Getting started

Download CodeEditorLib.dll below and add it as a reference. That's the only file you need at runtime. No NuGet, no extra dependencies — just System.Windows.Forms and System.Drawing which you already have.

var editor = new CodeEditorControl { Dock = DockStyle.Fill };
editor.LanguageName = "CSharp";
editor.Theme = new DarkTheme();
Controls.Add(editor);

Full usage and examples are in the [README](README.md).

---

Requirements

• Windows
• .NET Framework 2.0 or higher

---

Downloads

File	Description
CodeEditorLib_1.0.zip	The compiled library, ready to reference
CE++_Setup_v1.0.exe	The compiled GUI, ready to use
Source Code.zip	Full source code

---

Known issues

Nothing critical. A few things I know about and plan to fix in the next release:

• Syntax highlighting on very large files (10k+ lines) has a slight delay — the highlight timer is set to 300ms which helps, but it's not instant
• No built-in TypeScript support yet (it's on the list)
• The Find dialog doesn't support regex patterns, only plain text and whole-word matching

---

If something's broken or behaving unexpectedly, open an issue with a small repro case and I'll take a look.