A read-only property that returns a count of the number of TaskPane objects contained in the TaskPanes collection.
expression.Count
expression Required. Returns a reference to the TaskPanes collection.
0: Can be accessed without restrictions.
The Count property returns a long integer value.
In the following example, the Count property is used within a Microsoft JScript for loop to iterate through the collection of TaskPane objects. It checks the Visible property of each TaskPane object and if it is True, sets it to False.
var objTaskPanes;
objTaskPanes = XDocument.View.Window.TaskPanes;
for (i=0; i < objTaskPanes.Count; i++)
{
if (objTaskPanes(i).Visible = true)
objTaskPanes(i).Visible = false;
}