[NUI] remove SelectGroup.ItemGroup setter (#1709)
authorYeongJong Lee <cleanlyj@naver.com>
Mon, 22 Jun 2020 05:32:29 +0000 (14:32 +0900)
committerGitHub <noreply@github.com>
Mon, 22 Jun 2020 05:32:29 +0000 (14:32 +0900)
commit8167b87ddd1f718a9fefb59a2b8c41fdf743d241
treecede630827747668a83a74a150e3574a22f50417
parent3f0cc053d7ab7e3e0c0a8ba77e15b2103818aa38
[NUI] remove SelectGroup.ItemGroup setter (#1709)

Since `SelectGroup.ItemGroup` is initialized in `SelectGroup` constructor, it
should not be assigned by api user.

Also, this fixes `CA2227: Collection properties should be read only`.
https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2227?view=vs-2019
src/Tizen.NUI.Components/Controls/SelectGroup.cs