Help with ODK

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1

Hello,

I have been playing around with ODK using several different form builders and there is something I would like to do and am unsure how, and was hoping one of you could help me out.

Ill try describe as best I can..

Basically I to create a drop down menu with a list of objects, from where I can select whatever objects apply (varying quantity). The selected objects would then be added to a list, wherein a numerical value (percentage in this case) can be added to each individual item.

Then, if possible, have a condition which calculates the sum of all values and provides an error message if it is >100.

Thanks in advance for any advice.

2

I'd do this in XLSForm.

Have the objects in a multi select (ob1, ob2, ob3, etc) prompt. Then
for each object, have a corresponding number prompt (e.g., ob1_num)
become relevant if it was selected (e.g., selected(${ob_list}, 'ob1')
)

Then add up all ob_num prompts to find the sum, and have a constraint
that they have to add up to 100. Instead of the constraint, you could
also have a third prompt that is required and relevant if the sum is
not 100.

Yaw

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On Thu, Aug 14, 2014 at 6:31 AM, rhyscallender@gmail.com wrote:

Hello,

I have been playing around with ODK using several different form builders and there is something I would like to do and am unsure how, and was hoping one of you could help me out.

Ill try describe as best I can..

Basically I to create a drop down menu with a list of objects, from where I can select whatever objects apply (varying quantity). The selected objects would then be added to a list, wherein a numerical value (percentage in this case) can be added to each individual item.

Then, if possible, have a condition which calculates the sum of all values and provides an error message if it is >100.

Thanks in advance for any advice.

--

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