ArcGIS Pro 3.4 API Reference Guide
ArcGIS.Desktop.Framework.Contracts Namespace / Gallery Class / Insert Method
The zero-based index at which item should be inserted.
The item being added to the gallery.
Version

Insert Method (Gallery)
Inserts an element into the collection at the specified index.
Syntax
protected void Insert( 
   int index,
   object item
)

Parameters

index
The zero-based index at which item should be inserted.
item
The item being added to the gallery.
Remarks

All items added to the ItemCollection must be created on the main UI thread as these ultimately become the content of buttons added to the gallery popup control.

Requirements

Target Platforms: Windows 11, Windows 10

ArcGIS Pro version: 3 or higher.
See Also