Single checkbox input bound to xs:boolean

Hi All,

Anybody know how to render a single checkbox bound to a xs:boolean
attribute/element?  I just want the checkbox to directly control the
true/false value of the xs:boolean attribute/element.
I've looked through all the examples and can't find any example that
does this.  I was expecting to do something like <xforms:input
ref='@my_boolean_field'/> where @my_boolean_field is bound to an
xs:boolean type.  I was expecting that it would render a checkbox, but
instead it rendered just a plain text field.  For xs:date the OPS engine
automatically creates a calendar control for it, so I was expecting
similar behavior.

Larry T. Chen
Software Engineer
Intelenet Communications, Inc.




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Try using a xforms:select with a single unlabelled option together with a bind that calculates the field to be false() if it's empty. A bit of a hack but it works.

Rendering a single checkbox for boolean input isn't always desireable (some people want two radio buttons labelled Yes/No, some people want to be able to represent an optional boolean which can be left blank, which you can't do with a single checkbox). But perhaps OPS could have some sensible defaults which can be controlled with the @appearance attribute.

Adrian

Larry T. Chen wrote:

Hi All,

Anybody know how to render a single checkbox bound to a xs:boolean attribute/element?  I just want the checkbox to directly control the true/false value of the xs:boolean attribute/element.
I've looked through all the examples and can't find any example that does this.  I was expecting to do something like <xforms:input ref='@my_boolean_field'/> where @my_boolean_field is bound to an xs:boolean type.  I was expecting that it would render a checkbox, but instead it rendered just a plain text field.  For xs:date the OPS engine automatically creates a calendar control for it, so I was expecting similar behavior.

Larry T. Chen
Software Engineer
Intelenet Communications, Inc.

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Thanks for that tip Adrian.  A <xforms:select> with a single <xforms:item> worked.

Larry T. Chen
Software Engineer
Intelenet Communications, Inc.


Adrian Baker wrote:

Try using a xforms:select with a single unlabelled option together with a bind that calculates the field to be false() if it's empty. A bit of a hack but it works.

Rendering a single checkbox for boolean input isn't always desireable (some people want two radio buttons labelled Yes/No, some people want to be able to represent an optional boolean which can be left blank, which you can't do with a single checkbox). But perhaps OPS could have some sensible defaults which can be controlled with the @appearance attribute.

Adrian

Larry T. Chen wrote:

Hi All,

Anybody know how to render a single checkbox bound to a xs:boolean attribute/element?  I just want the checkbox to directly control the true/false value of the xs:boolean attribute/element.
I've looked through all the examples and can't find any example that does this.  I was expecting to do something like <xforms:input ref='@my_boolean_field'/> where @my_boolean_field is bound to an xs:boolean type.  I was expecting that it would render a checkbox, but instead it rendered just a plain text field.  For xs:date the OPS engine automatically creates a calendar control for it, so I was expecting similar behavior.

Larry T. Chen
Software Engineer
Intelenet Communications, Inc.

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