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PivotGridControl.ExpandValueAsync(Boolean, Object[]) Method

Expands the specified column or row asynchronously.

Namespace: DevExpress.XtraPivotGrid

Assembly: DevExpress.XtraPivotGrid.v23.2.dll

NuGet Package: DevExpress.Win.PivotGrid


public Task<bool> ExpandValueAsync(
    bool isColumn,
    object[] values


Name Type Description
isColumn Boolean

true to expand a column; false to expand a row.

values Object[]

An array of field values that identify the column/row to be expanded.


Type Description

An asynchronous operation that returns true in case of success.


The ExpandValueAsync method is asynchronous. ExpandValueAsync starts to execute the related operation in a background thread, and returns the Pivot Grid control. The main UI thread remains unblocked to allow the application to continue responding to user actions. Refer to the following topic for more information: Asynchronous Mode.

The image below shows the Pivot Grid with the collapsed “Austria” column.


To expand the “Austria” column (within the “Alice Mutton” column), use the following code:

using DevExpress.XtraPivotGrid;
using System.Windows.Forms;
namespace WindowsFormsApp2 {
    public partial class Form1 : Form {
        public Form1() {
            pivotGridControl1.OptionsBehavior.UseAsyncMode = true;
        async void ConfigureLayout() {
            await pivotGridControl1.ExpandValueAsync(true, new object[] {"Alice Mutton", "Austria"});

The result of this operation is shown below:


Use the PivotGridControl.ExpandValue method to expand a column or row synchronously.

To collapse a column or row, use the PivotGridControl.CollapseValueAsync (asynchronous) or PivotGridControl.CollapseValue (synchronous) method.

See Also