Can a CheckBoxItem handle NULL values?

[SCAI_Andre]

Hi,

is it possible to let a CheckBoxItem handle NULL values? I would expect a triple state checkbox, which does not toggle between checked and unchecked, but cycle from checked/unchecked/null.

The NULL state would be indicated with a gray background.

Is that possible?

TIA!

[SCAI_Andre]

While I searched the SmartGWT forums for something like that already, I extended my search a bit and found something that HTML5 checkboxes would support something "indeterminate".

https://stackoverflow.com/a/4724216

Is something like this available in SmartGwt?

[Blama]

Hi,

see the CheckboxItem-docs for emptyValue.

Best regards
Blama

[SCAI_Andre]

"emptyValue" it is called!

Makes sense :)

Thank you!!