IsLayer

This method returns whether a Project Tree group is a feature layer.

 

JavaScript
IsLayer(        GroupID)

 

C#
bool IsLayer(        int GroupID)

 

C++
HRESULT IsLayer(      LONG_PTR GroupID,      VARIANT_BOOL * bLayer)

Parameters:

GroupID

The ID of the group in question. You can obtain the group ID by one of the following methods:

§  Create the group using IProjectTree61.CreateGroup.

§  Find the group, if you know the name, using IProjectTree61.FindItem.

§  Traverse the Tree using IProjectTree61 methods such as GetNextItem (), until you come to the desired GroupID.

Return Value

bLayer

A Boolean that indicates whether the GroupID that was passed is the ID of a feature layer.

Exceptions

HRESULT can return any of the values listed in the HRESULT Return Values list, as well as the following values:

TE_E_INFOTREE_PARENTNOTGROUP	The group ID entered does not represent a valid group in the project tree.
TE_E_INFOTREE_ITEMNOTGROUP	The item entered is not a group and therefore cannot be used as a group.
TE_E_INFOTREE_CANTUSEROOT	Can not use tree root for this operation
TE_E_INFOTREE_ITEMISGROUP	ItemID is a group so an object cannot be retrieved.