Hi @zhuhaiyin Try this:
Switch (
rowNums,
1,
UpdateContext ({v1: 1}),
2,
UpdateContext ({v2: 1});
UpdateContext ({v3: 3}),
3,
UpdateContext ({v4: 4});
UpdateContext ({v5: 5});
UpdateContext ({v6: 6}),
4,
UpdateContext ({v7: 7});
UpdateContext ({v8: 8});
UpdateContext ({v9: 9});
UpdateContext ({V1O: 10}),
5,
UpdateContext ({v11: 11});
UpdateContext ({v12: 12});
UpdateContext ({v13: 13});
UpdateContext ({V14: 14});
UpdateContext ({V15: 15})
)
Basically, in the highlighted part, it should be comma, not semi-colon.

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I hope this helps.
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Thanks,
ANB