Choice Based Question -

Development
1

I am asking users their choice about multiple Brands, using combo box. If
user select option A in Choice 1, then in Choice 2 and Choice he should not
be allowed to select option A. But he can choose "None" as option in Choice
1, Choice 2, Choice 3.

Choice 1
Choice 2
Choice 3

Attaching form

Fabric Care_v7.xml (94.4 KB)

2

You can add a constraint to Choice 2 that complains if it is the same
option as for Choice 1 and asks the user to pick a different option.
Similarly, for Choice 3, a constraint can be constructed if the option
picked for 3 was already picked for 1 OR 2.

··· On Fri, Feb 22, 2013 at 2:09 AM, techbyte wrote:

I am asking users their choice about multiple Brands, using combo box. If
user select option A in Choice 1, then in Choice 2 and Choice he should not
be allowed to select option A. But he can choose "None" as option in Choice
1, Choice 2, Choice 3.

Choice 1
Choice 2
Choice 3

Attaching form

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3

Thanks For Reply.

I have done this the challenge I am facing is "None" it is a valid option
for some of the choices so I want to take None as valid option for multiple
answers

Valid Example
Option 1: Denver
Option 2: Newyork
Option 3: None
Option 4: None

InValid Example
Option 1: Denver
Option 2: None
Option 3: Denver
Option 4: Newyork
Option 5: None

Please see attached xml

Fabric Care_v8.xml (95.9 KB)

··· On Saturday, February 23, 2013 9:31:05 AM UTC+5:30, Gaetano Borriello wrote: > > You can add a constraint to Choice 2 that complains if it is the same > option as for Choice 1 and asks the user to pick a different option. > Similarly, for Choice 3, a constraint can be constructed if the option > picked for 3 was already picked for 1 OR 2. > > > On Fri, Feb 22, 2013 at 2:09 AM, techbyte <techb...@gmail.com wrote: > >> I am asking users their choice about multiple Brands, using combo box. If >> user select option A in Choice 1, then in Choice 2 and Choice he should not >> be allowed to select option A. But he can choose "None" as option in Choice >> 1, Choice 2, Choice 3. >> >> Choice 1 >> Choice 2 >> Choice 3 >> >> >> Attaching form >> >> -- >> You received this message because you are subscribed to the Google Groups >> "ODK Developers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to opendatakit-developers+unsubscribe@googlegroups.com >> . >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > >
4

You should just be able to wrap the and that excludes duplicates with an or
that allows 'None' i.e., do something like:

constraint="(string(/data/Top_of_Mind_Brands/TMB_Rank6) = 'None') or (...)"

where ... is the and clause that excluded the duplicate selections.

Mitch

··· On Fri, Feb 22, 2013 at 10:09 PM, techbyte wrote:

Thanks For Reply.

I have done this the challenge I am facing is "None" it is a valid
option for some of the choices so I want to take None as valid option for
multiple answers

Valid Example
Option 1: Denver
Option 2: Newyork
Option 3: None
Option 4: None

InValid Example
Option 1: Denver
Option 2: None
Option 3: Denver
Option 4: Newyork
Option 5: None

Please see attached xml

On Saturday, February 23, 2013 9:31:05 AM UTC+5:30, Gaetano Borriello wrote:

You can add a constraint to Choice 2 that complains if it is the same
option as for Choice 1 and asks the user to pick a different option.
Similarly, for Choice 3, a constraint can be constructed if the option
picked for 3 was already picked for 1 OR 2.

On Fri, Feb 22, 2013 at 2:09 AM, techbyte techb...@gmail.com wrote:

I am asking users their choice about multiple Brands, using combo box.
If user select option A in Choice 1, then in Choice 2 and Choice he should
not be allowed to select option A. But he can choose "None" as option in
Choice 1, Choice 2, Choice 3.

Choice 1
Choice 2
Choice 3

Attaching form

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Mitch Sundt
Software Engineer
University of Washington
mitchellsundt@gmail.com