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ITemplates.Count Property (ArcObjects .NET 10.4 SDK)

ArcObjects Library Reference (Framework)

ITemplates.Count Property

[Visual Basic .NET]
Public ReadOnly Property Count As Integer

[C#]
public int Count {get;}

Available with ArcGIS Desktop.

In ArcCatalog, Count is always 1. The Normal template is the only template or document loaded.
In ArcMap, Count is either 2 or 3. The Normal template and a document are always loaded. If there is also a base template loaded then the count becomes 3.