Hello Everyone,
I try to select sume rows from a datatable, and my activity is as below .

but when I debug, it gives me a error message like this

Does anyone know how to solve this problem…
Thank you in advance.
Please use the Filter Datatable Activity which does the same thing as Linq Select.
Below screenshot of the activity for your reference.!

@ChangShuang
while you column name has spaces then the column name should be inside [ column name ]
then query will be CaseInformation.Select(“[WBill Rate Type] = ‘Monthly’”)
this will give you datatable so the variable in which you store should be of data table type
Wow, I make it by your solution thank you very much~~
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Thank you very much for your answer solved my problem~~
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