# Child Collection Groups

A child collection group is a container for other child collections. Its purpose is mainly to provide a logical grouping of multiple child collections to help with organization and an improved user experience.

![Child Collection Groups](/files/UzedEGWW6Lo67dgisHdL)

## Defining a Child Collection Group

You can define a child collection group by calling one of the `AddChildCollectionGroup` methods on a given collection config builder instance.

### Using the `AddChildCollectionGroup()` Method

Adds a child collection group to the current collection with the specified name and default icon.

#### Method Syntax

```cs
AddChildCollectionGroup(string name, Lambda childCollectionGroupConfig = null) : ChildCollectionGroupConfigBuilder
```

#### Example

```csharp
collectionConfig.AddChildCollectionGroup("Family", childCollectionGroupConfig => {
    ...
});
```

### Using the `AddChildCollectionGroup()` Method with Custom Icon

Adds a child collection group to the current collection with the specified name and custom icon.

#### Method Syntax

```cs
AddChildCollectionGroup(string name, string icon, Lambda childCollectionGroupConfig = null) : ChildCollectionGroupConfigBuilder
```

#### Example

```csharp
collectionConfig.AddChildCollectionGroup("Family", "icon-users", childCollectionGroupConfig => {
    ...
});
```


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.umbraco.com/umbraco-ui-builder/collections/child-collections/child-collection-groups.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.