画面フローで動的に 今月の第1週目の日付を並べる

• 画面フローの選択リストの選択肢を動的にしたい

6月であれば、
2025/05/26(月)
2025/05/27(火)
2025/05/28(水)
2025/05/29(木)
2025/05/30(金)
2025/05/31(土)
2025/06/01(日)

7月であれば、
2025/06/30(月)
2025/07/01(火)
2025/07/02(水)
2025/07/03(木)
2025/07/04(金)
2025/07/05(土)
2025/07/06(日)

6月で実行した結果

実際のフロー

set_baseCollection

baseCollectionLoop

set_DummyRecordSingle

DATE( Year({!$Flow.CurrentDate}),Month({!$Flow.CurrentDate}),1 )

CASE(WEEKDAY(DATE( Year({!T}),MONTH({!T}),1 )),
1,CASE({!baseCollectionLoop},"01",TEXT({!T}-6)+"(月)","02",TEXT({!T}-5)+"(火)","03",TEXT({!T}-4)+"(水)","04",TEXT({!T}-3)+"(木)","05",TEXT({!T}-2)+"(金)","06",TEXT({!T}-1)+"(土)",TEXT({!T})+"(日)"),
2,CASE({!baseCollectionLoop},"01",TEXT({!T})+"(月)","02",TEXT({!T}+1)+"(火)","03",TEXT({!T}+2)+"(水)","04",TEXT({!T}+3)+"(木)","05",TEXT({!T}+4)+"(金)","06",TEXT({!T}+5)+"(土)",TEXT({!T}+6)+"(日)"),
3,CASE({!baseCollectionLoop},"01",TEXT({!T}-1)+"(月)","02",TEXT({!T})+"(火)","03",TEXT({!T}+1)+"(水)","04",TEXT({!T}+2)+"(木)","05",TEXT({!T}+3)+"(金)","06",TEXT({!T}+4)+"(土)",TEXT({!T}+5)+"(日)"),
4,CASE({!baseCollectionLoop},"01",TEXT({!T}-2)+"(月)","02",TEXT({!T}-1)+"(火)","03",TEXT({!T})+"(水)","04",TEXT({!T}+1)+"(木)","05",TEXT({!T}+2)+"(金)","06",TEXT({!T}+3)+"(土)",TEXT({!T}+4)+"(日)"),
5,CASE({!baseCollectionLoop},"01",TEXT({!T}-3)+"(月)","02",TEXT({!T}-2)+"(火)","03",TEXT({!T}-1)+"(水)","04",TEXT({!T})+"(木)","05",TEXT({!T}+1)+"(金)","06",TEXT({!T}+2)+"(土)",TEXT({!T}+3)+"(日)"),
6,CASE({!baseCollectionLoop},"01",TEXT({!T}-4)+"(月)","02",TEXT({!T}-3)+"(火)","03",TEXT({!T}-2)+"(水)","04",TEXT({!T}-1)+"(木)","05",TEXT({!T})+"(金)","06",TEXT({!T}+1)+"(土)",TEXT({!T}+2)+"(日)"),
  CASE({!baseCollectionLoop},"01",TEXT({!T}-5)+"(月)","02",TEXT({!T}-4)+"(火)","03",TEXT({!T}-3)+"(水)","04",TEXT({!T}-2)+"(木)","05",TEXT({!T}-1)+"(金)","06",TEXT({!T})+"(土)",TEXT({!T}+1)+"(日)"))

set_DummyCollection

画面