How to Manage Layer files in ArcGIS help?
If interested in managing layer files, refer to the Layer and AddLayerToGroup functions. The layer that is added must reference an already existing layer (keep in mind that a layer can be a group layer as well).
How can I add a layer to an empty DATA frame?
For more precise layer placement options, refer to the InsertLayer function. AddLayer is the only function that can add a layer into an empty data frame. AddLayer does not allow you to add layers to a layer file or within a group layer. If interested in managing layer files, refer to the Layer and AddLayerToGroup functions.
What happens when a layer is collasped in ArcGIS?
For example, some layers are completely collapsed and do not display their symbol (s) in the TOC. This setting is built into the layer. If a layer is collasped, saved to a layer file, and then added to a map document, the layer will be collasped in the new map document when added via AddLayer.
How does the add layer button in ArcGIS work?
It can add a layer with auto-arrange logic that places the new layer in a data frame similarly to how the Add Data button works in ArcMap; it places the layer based on layer weight rules and geometry type. The other placement choices are either at the top or the bottom of a data frame.
How does the addlayer button work in ArcGIS?
AddLayer is an easy way to add a layer or group layer into a map document. It can add a layer with auto-arrange logic that places the new layer in a data frame similarly to how the Add Data button works in ArcMap; it places the layer based on layer weight rules and geometry type.
Can a layer be added to a layer file?
AddLayer does not allow you to add layers to a layer file or within a group layer. If interested in managing layer files, refer to the Layer and AddLayerToGroup functions. The layer that is added must reference an already existing layer (keep in mind that a layer can be a group layer as well).