# What's New in TX Text Control .NET for Windows Forms 21.0

> TX Text Control .NET for Windows Forms 21.0 (X11): wider find and replace, whole-word search, localizable dialogs, language detection, content control adapters.

- **Product:** TX Text Control .NET for Windows Forms
- **Section:** Documentation
- **Kind:** Topic
- **Path:** TX Text Control .NET for Windows Forms > What's New > Older Versions > What's New in TX Text Control .NET for Windows Forms 21.0
- **2790 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2100/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2100/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2100/llms-full.txt

---

The built-in find and replace dialog boxes of TX Text Control .NET for Windows Forms searched beyond the main text from version 21.0 on, and they became part of the resource kit together with the color dialog box. The version also detected the language of text automatically with TX Spell .NET, added field adapters for the content controls of MS Word documents and reported the version of the control in code.

Version 21.0 was released in September 2014 as TX Text Control X11, together with TX Spell .NET 5.0 and TX Barcode .NET 4.0, as the blog article [TX Text Control X11 Released: Cross-browser Template Editing](https://www.textcontrol.com/blog/2014/09/10/tx-text-control-x11-released-cross-browser-template-editing/) announced. Its main feature, the HTML5 Web Editor for ASP.NET, and the ServerVisualization namespace that renders a `ServerTextControl` as images belong to TX Text Control .NET Server and aren't listed here.

### Version 21.0 at a Glance

| Area | What is new |
|---|---|
| Find and replace | Searching text frames and headers and footers, whole words only |
| Localization | The Find, Replace and Color dialog boxes in the resource kit |
| Proofing | Automatic language detection with TX Spell .NET 5.0 |
| Content controls | Field adapters for the content controls of MS Word |
| Tables | Selecting the part of a table between two cells |
| Version information | `GetVersionInfo` and the `VersionInfo` class |

### Find and Replace

The built-in dialog boxes for finding and replacing text, which [TextControl.Find](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/find-method/llms-full.txt) and [TextControl.Replace](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/replace-method/llms-full.txt) open, received new options:

- **All text parts.** A search is no longer limited to the main text. It continues in the text frames and in the headers and footers of the document.
- **Whole words.** The [FindOptions](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/findoptions/enumeration/llms-full.txt) value `MatchWholeWord` finds only occurrences of the search text that are whole words.

[Search and Replace](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/document-editor/editing-text/search-replace/llms-full.txt) shows how to search a document in the current version.

### Localization

The Find, Replace and Color dialog boxes were added to the resource kit, the set of resources that satellite assemblies translate, so that their texts can be localized like those of the other built-in dialog boxes. See [Localization and Resource Kit](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/document-editor/ribbon-ui/localization/llms-full.txt).

### Content Control Adapters

Content controls are the controls that MS Word adds to documents and templates to automate them. The [DocumentServer.Fields](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/llms-full.txt) namespace received an adapter class for each kind, so that you read and change them without editing the parameters of the underlying `ApplicationField`:

- **Text.** [RichTextContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/richtextcontentcontrol/llms-full.txt) and [PlainTextContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/plaintextcontentcontrol/llms-full.txt).
- **Choices.** [CheckBoxContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/checkboxcontentcontrol/llms-full.txt), [ComboBoxContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/comboboxcontentcontrol/llms-full.txt) and [DropDownListContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/dropdownlistcontentcontrol/llms-full.txt). The feature list of the version calls the last one "DropDownContentControl"; the class is named `DropDownListContentControl`.
- **Dates.** [DateContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/llms-full.txt), with the calendar, the date format and the language of the date.
- **Common properties.** The base class [ContentControlFieldAdapter](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/llms-full.txt) provides [Id](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/id-property/llms-full.txt), [Tag](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/tag-property/llms-full.txt), [Title](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/title-property/llms-full.txt), [Placeholder](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/placeholder-property/llms-full.txt), [ContentEditable](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/contenteditable-property/llms-full.txt), [ContentDeletable](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/contentdeletable-property/llms-full.txt) and [Type](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/type-property/llms-full.txt).

### Document Processing

- **Automatic language detection.** With TX Spell .NET 5.0 connected, [TextControl.IsLanguageDetectionEnabled](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/islanguagedetectionenabled-property/llms-full.txt) set to `true` detects the language of all text that has the neutral language. `ServerTextControl` has the same property. See [Spell Checking and Hyphenation](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/document-editor/spell-checking/llms-full.txt).
- **Table ranges.** A new overload of [Table.Select](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/table/select-method/llms-full.txt) selects the part of a table between two cells.
- **Version information.** [TextControl.GetVersionInfo](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/getversioninfo-method/llms-full.txt) returns a [VersionInfo](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/llms-full.txt) object with the [Major](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/major-property/llms-full.txt) and [Minor](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/minor-property/llms-full.txt) version, the [ServicePack](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/servicepack-property/llms-full.txt) number (0 for the original release) and the product level. The reference documents the product level as the property [ProductLevel](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/productlevel-property/llms-full.txt), but in the assemblies the property is named `Level`, and `ProductLevel` is the type of its value.

### Upgrade to Version 21.0

Version 21.0 has no update notes.

### New Classes, Properties, Methods and Events

The classes and members below are the ones that the What's New documentation of version 21.0 lists for TX Text Control .NET for Windows Forms. Names are relative to the `TXTextControl` namespace, each name links to its current reference page, and "(obsolete)" marks a member that is obsolete today. The version's own list names the `ListItems` property of `DropDownListContentControl` as a property of `DateContentControl`; it is listed here with the class it belongs to.

#### New Classes

- [DocumentServer.Fields.CheckBoxContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/checkboxcontentcontrol/llms-full.txt)
- [DocumentServer.Fields.ComboBoxContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/comboboxcontentcontrol/llms-full.txt)
- [DocumentServer.Fields.ContentControlFieldAdapter](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/llms-full.txt)
- [DocumentServer.Fields.DateContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/llms-full.txt)
- [DocumentServer.Fields.DropDownListContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/dropdownlistcontentcontrol/llms-full.txt)
- [DocumentServer.Fields.PlainTextContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/plaintextcontentcontrol/llms-full.txt)
- [DocumentServer.Fields.RichTextContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/richtextcontentcontrol/llms-full.txt)
- [VersionInfo](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/llms-full.txt)

#### Members by Class

| Class | Properties | Methods |
|---|---|---|
| [DocumentServer.Fields.CheckBoxContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/checkboxcontentcontrol/llms-full.txt) | [Checked](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/checkboxcontentcontrol/checked-property/llms-full.txt) |  |
| [DocumentServer.Fields.ComboBoxContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/comboboxcontentcontrol/llms-full.txt) | [ListItems](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/comboboxcontentcontrol/listitems-property/llms-full.txt) |  |
| [DocumentServer.Fields.ContentControlFieldAdapter](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/llms-full.txt) | [ContentDeletable](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/contentdeletable-property/llms-full.txt), [ContentEditable](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/contenteditable-property/llms-full.txt), [Id](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/id-property/llms-full.txt), [Placeholder](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/placeholder-property/llms-full.txt), [Tag](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/tag-property/llms-full.txt), [Title](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/title-property/llms-full.txt), [Type](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/contentcontrolfieldadapter/type-property/llms-full.txt) |  |
| [DocumentServer.Fields.DateContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/llms-full.txt) | [Calendar](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/calendar-property/llms-full.txt), [Date](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/date-property/llms-full.txt), [DateFormat](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/dateformat-property/llms-full.txt), [LanguageID](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/languageid-property/llms-full.txt), [StoreMappedDataAs](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/datecontentcontrol/storemappeddataas-property/llms-full.txt) |  |
| [DocumentServer.Fields.DropDownListContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/dropdownlistcontentcontrol/llms-full.txt) | [ListItems](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/dropdownlistcontentcontrol/listitems-property/llms-full.txt) |  |
| [DocumentServer.Fields.PlainTextContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/plaintextcontentcontrol/llms-full.txt) | [Text](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/plaintextcontentcontrol/text-property/llms-full.txt) |  |
| [DocumentServer.Fields.RichTextContentControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/richtextcontentcontrol/llms-full.txt) | [Text](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol-documentserver-fields/richtextcontentcontrol/text-property/llms-full.txt) |  |
| [ServerTextControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/servertextcontrol/llms-full.txt) | [IsLanguageDetectionEnabled](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/servertextcontrol/islanguagedetectionenabled-property/llms-full.txt) | [GetVersionInfo](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/servertextcontrol/getversioninfo-method/llms-full.txt) |
| [TextControl](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/llms-full.txt) | [IsLanguageDetectionEnabled](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/islanguagedetectionenabled-property/llms-full.txt) | [GetVersionInfo](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/textcontrol/getversioninfo-method/llms-full.txt) |
| [VersionInfo](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/llms-full.txt) | [Major](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/major-property/llms-full.txt), [Minor](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/minor-property/llms-full.txt), [ProductLevel](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/productlevel-property/llms-full.txt), [ServicePack](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/reference/txtextcontrol/versioninfo/servicepack-property/llms-full.txt) |  |

### Next Steps

- [Version 22.0](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2200/llms-full.txt): the features of the next version.
- [Version 20.0](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2000/llms-full.txt): right-to-left text, hyphenation, document languages and object merging.
- [Search and Replace](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/document-editor/editing-text/search-replace/llms-full.txt): find and replace text in the current version.

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## Nearby

- **Previous:** [What's New in TX Text Control .NET for Windows Forms 22.0](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2200/llms-full.txt)
- **Next:** [What's New in TX Text Control .NET for Windows Forms 20.0](https://docs.textcontrol.com/tx-text-control-dotnet-winforms/whats-new/older-versions/2000/llms-full.txt)