I think you need to add
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
foreach(FILE ${SRCS})
# Get the directory of the source file
get_filename_component(PARENT_DIR "${FILE}" DIRECTORY)
# Remove common directory prefix to make the group
string(REPLACE "${CMAKE_CURRENT_SOURCE_DIR}" "" GROUP "${PARENT_DIR}")
# Make sure we are using windows slashes
string(REPLACE "/" "\\" GROUP "${GROUP}")
# Group into "Source Files" and "Header Files"
if ("${FILE}" MATCHES ".*\\.cpp")
set(GROUP "Source Files${GROUP}")
elseif("${FILE}" MATCHES ".*\\.h")
set(GROUP "Header Files${GROUP}")
endif()
source_group("${GROUP}" FILES "${FILE}")
endforeach()
function(assign_source_group)
foreach(_source IN ITEMS ${ARGN})
if (IS_ABSOLUTE "${_source}")
file(RELATIVE_PATH _source_rel "${CMAKE_CURRENT_SOURCE_DIR}" "${_source}")
else()
set(_source_rel "${_source}")
endif()
get_filename_component(_source_path "${_source_rel}" PATH)
string(REPLACE "/" "\\" _source_path_msvc "${_source_path}")
source_group("${_source_path_msvc}" FILES "${_source}")
endforeach()
endfunction(assign_source_group)
project(Main)
set(SOURCE_LIST
"File.cpp"
"File.hpp"
"Dir/File1.cpp"
"Dir/File1.hpp"
"Dir/File2.cpp"
"Dir/File2.hpp"
)
add_executable(Main ${SOURCE_LIST})
# Create the source groups for source tree with root at CMAKE_CURRENT_SOURCE_DIR.
source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} FILES ${SOURCE_LIST})