ArcGIS Developer Help

IEditor.TaskCount Property

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

[C#]
public int TaskCount {get;}

Available with ArcGIS Desktop.

This property returns the number of tasks the editor currently has loaded. When changing the current task programmatically, use TaskCount with Task and IEditTask::Name to loop through all available tasks and find the correct one.  Or alternatively you can use the edit task's unique name and IEditTaskSearch::TaskByUniqueName to find the desired edit task.