ArcGIS Pro 3.0 API Reference Guide
ArcGIS.Desktop.Framework.Contracts Namespace / DockPane Class / TabText Property

TabText Property
Gets or sets the dockpane's lower tab text. This appears only when the dock pane is grouped with other tabs.
Syntax
public string TabText {get; set;}
Requirements

Target Platforms: Windows 11, Windows 10, Windows 8.1

ArcGIS Pro version: 2.2 or higher.
See Also