Assign : Cannot multiply a System.String with a System.Double

Help
1

Hi, I am getting a number from a row(eg 30). Then would like to times some amount(eg 1.50). But getting the following error.
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How can I get over this error?

Thank you xoxo

2

Hi @sangasangasanga,

days*rowprice

After days “DOT” is present so its throwing the exception

3

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Oops, my mistake but even after I took it out, I am still getting the same error.

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4

Hi @sangasangasanga,

may be the days or rowprice data type in string format.

So Convert into Double

Convert.ToDouble(days)* Convert.ToDouble(rowprice)

5

Hi, I tried, still getting an error

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6

Hi @sangasangasanga,

days is generic value.

So

Convert.ToDouble(days.Tostring)* Convert.ToDouble(rowprice)

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