I have a field called Region (SW, NE, SE, NW). I have a check box with multi-selection enable. I need to put 2 validations for NE and SE regions.
If NE is selected then only show 2 choices for check and only allow 1 selection.
NE will show this "Sales" & "Service" and user should only select 1.
If SE is selected then only show 3 choices for check and only allow 1 selection.
SE will show this "Fax", "Email" & "Online" and user should only select 1.
Nintex Forms 2010
you can not show/hide single options of a control/field with rules. you can only show/hide whole control.
in order you would be able to show/hide each check box, you would need each option to be a separate control (or at least "Sales" + "Service" being one control and "Fax" + "Email" + "Online" being second control.
you cannot connect multiple form controls to the same list field, since only value of one control (usually the most bottom one) will be written to the list.
you should create dedicated list field for each control.
or crate a calculated value control on the form the will make up single value out of all the controls a connect it to list field
validation rule with formula like following should work for 'NE' region
RegionNamedControl == "NE" &&
( inArray(OtherNamedControl,'Fax') ||
length(OtherNamedControl) != 1)
similarly for the other region(s)
even users will be able to click out combination like NE region and Fax service but they will not be able to submit the form.