How can I use the template parameters as input?

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#1

What product/components do you use and which version/fix level?

Cumulocity 1011.0.12

Are you using a free trial or a product with a customer license?

License

What are trying to achieve? Please describe in detail.

I want to use the numeric template parameters as input of an expression-block. How can I use the template parameters as input?

#2

Hi Maximilian,

The expression block requires a string when used as a template parameter. The expression must be something like “input1 * 16”.

So you can just change the numeric parameter to string. This should be selectable in the expression block afterwards and will output a fixed value or can be used to calculate something with the input parameters (see my example above for input1)

#3

Thanks for the quick feedback!
Unfortunately I get an error when I try it the way you described.
Do you possibly know how I can fix this one?

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#4

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#5

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#6

Hi Maximilian,

the reason for that is that input1 retrieved from the properties seems to be a string while your constant value is a float.
You can add .toFloat() to your expression if the property value is a convertible string
https://documentation.softwareag.com/onlinehelp/Rohan/Apama/v10-3-1/apama10-3-1/ApamaDoc/string.html#toFloat()

100-(((input1.toFloat()-input2)*100)/180)

Do you have example values for input1 and input2?