Formhub - Displaying selected label from select_one list

Support
1

Kindly asking assistance on how to display the selected item's "label"
rather than the "name" from select_one list.

Thanks in advance
JDChinga

2

JDChinga,

Here's the relevant clip from the SurveyCTO documentation:

jr:choice-name(value, 'field'): Returns the label for a select_one or
select_multiple field choice (as in the calculate expression
"jr:choice-name(${selectonefield}, '${selectonefield}')" to return the
label for the currently-selected choice in the selectonefield field). For
select_multiple fields, you can combine with selected-at() to get the label
for individual selections (as in
"jr:choice-name(selected-at(${selectmultfield}, 0), '${selectmultfield}')"
to return the label for the first choice in the selectmultfield field).

I expect that the same function call should work from formhub.

Best,

Chris

··· On Fri, Sep 20, 2013 at 6:45 AM, Jeffrey Dirawo wrote:

Kindly asking assistance on how to display the selected item's "label"
rather than the "name" from select_one list.

Thanks in advance
JDChinga

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3

Don't seem to get choice-name(value, 'field') to work in Formhub. I have
attached a sample XLS file.
Thanks.

sample.xlsx (189 KB)

··· On Fri, Sep 20, 2013 at 12:45 PM, Jeffrey Dirawo wrote:

Kindly asking assistance on how to display the selected item's "label"
rather than the "name" from select_one list.

Thanks in advance
JDChinga

4

Jeffrey,

The jr: on the front is quite important. Did you try jr:choice-name()?

Best,

Chris

··· On Sep 24, 2013 12:00 PM, "Jeffrey Dirawo" wrote:

Don't seem to get choice-name(value, 'field') to work in Formhub. I
have attached a sample XLS file.
Thanks.

On Fri, Sep 20, 2013 at 12:45 PM, Jeffrey Dirawo jdchinga@gmail.comwrote:

Kindly asking assistance on how to display the selected item's "label"
rather than the "name" from select_one list.

Thanks in advance
JDChinga

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5

I encountered this error on attempting to display the form:

A formula evaluation error occurred. Please contact
support@formhub.org<support@formhub.org?subject=xpath%20errors%20for:%20https://i5h3h.enketo.formhub.org/webform&body=Error%20occurred%20trying%20to%20evaluate:%20jr:choice-name%28%20/sample/site%20,%20%27%20/sample/site%20%27%29,%20message:%20d%20is%20null>with
this error:

  • Error occurred trying to evaluate: jr:choice-name( /sample/site , '
    /sample/site '), message: d is null

I appreciate your assistance.

··· On Tue, Sep 24, 2013 at 12:23 PM, Jeffrey Dirawo wrote:

Don't seem to get choice-name(value, 'field') to work in Formhub. I
have attached a sample XLS file.
Thanks.

On Fri, Sep 20, 2013 at 12:45 PM, Jeffrey Dirawo jdchinga@gmail.comwrote:

Kindly asking assistance on how to display the selected item's "label"
rather than the "name" from select_one list.

Thanks in advance
JDChinga

6

Apparently, jr:choice-name cannot tolerate a blank value for its first
argument. This is causing the error.

To work around this, define the calculate expression to be:

if(string-length(${site}) !=
0,jr:choice-name(${site},'${site}'),'(unspecified location)')

This tests to ensure that a site has been selected ( the ${site} value is
not a zero-length string ) and uses jr:choice-name only if that is the
case. Otherwise, it returns the string '(unspecified location)'

Note that the first argument to jr:choice-name should not be quoted -- you
want the selected value, and will use that to look up the name for that
value in the choice list.

Mitch

··· On Tue, Sep 24, 2013 at 11:52 AM, Jeffrey Dirawo wrote:

I encountered this error on attempting to display the form:

A formula evaluation error occurred. Please contact support@formhub.org<support@formhub.org?subject=xpath%20errors%20for:%20https://i5h3h.enketo.formhub.org/webform&body=Error%20occurred%20trying%20to%20evaluate:%20jr:choice-name%28%20/sample/site%20,%20%27%20/sample/site%20%27%29,%20message:%20d%20is%20null>with this error:

  • Error occurred trying to evaluate: jr:choice-name( /sample/site , '
    /sample/site '), message: d is null

I appreciate your assistance.

On Tue, Sep 24, 2013 at 12:23 PM, Jeffrey Dirawo jdchinga@gmail.comwrote:

Don't seem to get choice-name(value, 'field') to work in Formhub. I
have attached a sample XLS file.
Thanks.

On Fri, Sep 20, 2013 at 12:45 PM, Jeffrey Dirawo jdchinga@gmail.comwrote:

Kindly asking assistance on how to display the selected item's "label"
rather than the "name" from select_one list.

Thanks in advance
JDChinga

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

7

Many thanks Mitch - it's working perfect.
Jeffrey