# TileGroupCollection Object

A `TileGroupCollection` is obtained by calling the `get_groups()` methodfrom the [RadTileList client-side API](https://www.telerik.com/products/aspnet-ajax/documentation/controls/tilelist/client-side-programming/tilelist-object).

The **Telerik.Web.UI.TileList.TileGroupCollection** object exposes the following public methods and properties to control its behavior:

> caption TileGroupCollection Client-Side Methods

| Name              | Parameters                                                                                                                            | Return Type                                                                                                                           | Description                                                                                                                       |
| ----------------- | ------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| add(item)         | [TileGroup](https://www.telerik.com/products/aspnet-ajax/documentation/controls/tilelist/client-side-programming/tilegroup-object)    |                                                                                                                                       | Adds the group passed as a parameter to the collection.                                                                           |
| clear()           |                                                                                                                                       |                                                                                                                                       | Clears the tile groups in the RadTileList.                                                                                        |
| forEach(function) | function                                                                                                                              |                                                                                                                                       | Executes the passed function for each group in the collection, while passing the given group as an argument to the said function. |
| getItem(index)    | integer                                                                                                                               | [RadTileGroup](https://www.telerik.com/products/aspnet-ajax/documentation/controls/tilelist/client-side-programming/tilegroup-object) | Returns group at the passed index in the collectoin returned by the get_groups RadTileList method.                                |
| get_count()       |                                                                                                                                       | integer                                                                                                                               | Returns the number of tile groups in the RadTileList                                                                              |
| indexOf(item)     | [RadTileGroup](https://www.telerik.com/products/aspnet-ajax/documentation/controls/tilelist/client-side-programming/tilegroup-object) | integer                                                                                                                               | Returns the index of the group passed as a parameter. Returns -1 if there is no match.                                            |