Object reference not set to an instance of an object in For each row

zefang · July 8, 2019, 7:24am

Capture

I dont know why i kept getting this error.

Please help. Thank you~

amarasto · July 8, 2019, 7:29am

Please check CostDT it seems to be empty.

zefang · July 8, 2019, 7:33am

Thank you @amarasto . Just wanted to ask another question.
Is there any way a variable can accept both a string and double?

amarasto · July 8, 2019, 7:38am

Yes you can use the generic type for that purpose but i am not sure how that variable will behave internally.

system · July 11, 2019, 7:38am

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