# Getting started with RealGrid2

> Users of (old) RealGridJS products, please use [RealGridJS documentation](http://help.realgrid.com).
  
**RealGrid2 documentation site**. **Go to the desired link**.
  
- [RealGrid2 Introduction](/tutorial/introductions-concepts) ﹒﹒﹒ A brief explanation of the basic concepts and structure of RealGrid2
{/* - [License information](https://support.realgrid.com/download) ﹒﹒﹒ RealGrid2 licensing information */}
- [Start the tutorial](/tutorial/realgrid-quickstart) ﹒﹒﹒ How to start developing with RealGrid2
- [Theme](/guides/grid-style/themes) ﹒﹒﹒ Theme styles provided by default
- [Latest version changes](/changelog/latest) ﹒﹒﹒ RealGrid2 latest version changes
{/* - [Offline mode](/offline) ﹒﹒﹒ How to use the document site in an offline environment */}
- [RealGrid+ Migration](/faqs/faq-05) ﹒﹒﹒ Migrating from Flash version RealGrid to RealGrid2
- [RealGridJs Migration](/faqs/faq-06) ﹒﹒﹒ Migrating from RealGrid v1.0 to RealGrid2

## Main Guide

**Guide** contains detailed explanations and example code for the various features of RealGrid2.

- [Recommended settings](/guides/tip/recommended-options) ﹒﹒﹒ We have compiled recommended grid settings.
- [Context Menu](/guides/grid-components/context-menu) ﹒﹒﹒ Controls the menu that pops up in the grid.
- [Cell Merging](/guides/cell-components/cell-merging) ﹒﹒﹒ You can group cells belonging to a column and display them.
- [Row grouping](/guides/row-group/row-grouping) ﹒﹒﹒ Groups rows with the same value in a specific column.
- [HTML Renderer](/guides/renderer/html-renderer) ﹒﹒﹒ How to use HTML tags in cells in a grid
- [Style](/guides/grid-style/realgrid-2-styles), [Theme](/guides/grid-style/themes) ﹒﹒﹒ How to use styles and themes
- [Tree](/guides/tree/tree-view) ﹒﹒﹒ How to use tree view
 
Each page of the **Guide** has Live View **View Full Code** and **Download** functions. 
 
![toolbutton](/images/demo-toolbutton.png)   
 


## Main API

**API Reference** provides RealGrid2 classes, options, methods, and callbacks.

- [GridBase](/refs/Class/GridBase) ﹒﹒﹒ GridBase is the base class for **[GridView](/refs/Class/GridView)** and **[TreeView](/refs/Class/TreeView)**.
- [DataProviderBase](/refs/Class/DataProviderBase) ﹒﹒﹒ This is the base class for **[LocalDataProvider](/refs/Class/LocalDataProvider)** and **[LocalTreeDataProvider](/refs/Class/LocalTreeDataProvider)**.
- [Selection](/refs/Interface/Selection) ﹒﹒﹒ Selection Information Model for Grid

## Search

You can search many resources on the **RealGrid Documentation Site** by using 'Search' in the top right menu.

## View document site without internet

{/* - [Offline mode](/offline) ﹒﹒﹒ How to use the document site in an offline environment */}

## Get technical support

- [Developer Forum](http://forum.realgrid.com/) ﹒﹒﹒ We provide technical support for RealGrid regardless of whether you purchase it or not.
- We will respond within 3 hours during weekday business hours.
- Telephone inquiry: 0505-325-8080 (ext. 9104)
- Email: support@realgrid.com