# PivotDataSourceColumnBuilder

## Methods

### Expand(System.Boolean)

Sets whether the column-axis member is expanded when the PivotGrid is populated. Set to  to show its child members; otherwise, it starts collapsed.

#### Parameters

##### isExpanded - `System.Boolean`

Expanded state

#### RETURNS

The [PivotDataSourceColumnBuilder](https://www.telerik.com/aspnet-core-ui/documentation/api/kendo.mvc.ui.fluent/pivotdatasourcecolumnbuilder) object to support method chaining.