CustomExpandEventArgs.IsExpanded Property

Gets or sets whether the item is expanded.

Namespace: DevExpress.Xpf.PropertyGrid

Assembly: DevExpress.Xpf.PropertyGrid.v20.2.dll

NuGet Packages: DevExpress.WindowsDesktop.Wpf.PropertyGrid, DevExpress.Wpf.PropertyGrid

Declaration

C#

public bool IsExpanded { get; set; }

VB.NET

Public Property IsExpanded As Boolean

Property Value

Type	Description
Boolean	true, if the item is expanded; otherwise, false.

Remarks

Handle the PropertyGridControl.CustomExpand event to expand a row (or category). This event fires for each PropertyGridControl item. Set the event arguments’ IsExpanded property to true to expand a processed item.

When the IsExpanded property is set to true, end-users cannot collapse items in the PropertyGridControl. Set the IsExpanded property to true only if the processed item is initializing (CustomExpandEventArgs.IsInitializing is true) to allow end-users to collapse the control items.

The code sample below demonstrates how to expand all the items within the control and allow end-users to collapse them:

C#

void PropertyGridControl_CustomExpand(object sender, CustomExpandEventArgs args) {
    if(args.IsInitializing)
        args.IsExpanded = true;
}

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the IsExpanded property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

propertygridcontrol-how-to-sort-data-using-custom-rules-t617806/CS/PropertyGrid_Sorting/MainWindow.xaml.cs#L30

private void pGrid_CustomExpand(object sender, CustomExpandEventArgs args) {
    args.IsExpanded = true; // to expand all rows
}

VB.NET

propertygridcontrol-how-to-sort-data-using-custom-rules-t617806/VB/PropertyGrid_Sorting/MainWindow.xaml.vb#L29

Private Sub pGrid_CustomExpand(ByVal sender As Object, ByVal args As CustomExpandEventArgs)
    args.IsExpanded = True ' to expand all rows
End Sub