[Jagades Vignesvar]

Dear Friends,

Is there a way to create Conditional Attributes / Fields (similar to Conditional Logic in Google Form) for different polygons in the same shapefile in ArcGIS / QGIS? 

Eg: Say we have a land use shapefile whose land use is categorised in Class and Sub Class and has 5 attributes (/ fields) namely ID, Name, Class, SubClass, Description to be collected per se, which is common for all the polygons created. 

I have created a relation between Class and SubClass via the "Value Relation" option in  QGIS like when I give the land use as "Residential" only the sub-class corresponding to the residential option will be displayed. 

But is there any way or plugin or python code available to create another attribute (/ field) like Construction Type to be added only when "Residential" Class is selected, so that number of attributes is 6 only for residential land use; but when I select the class as "Water Bodies" there must be the same 5 number of attributes without any addition.

This is similar to how to create a new section of questions based on the response of the first question. 

If there is any way to perform this, Please help. This will be of great help.

Thank you all.

Regards, 

Vignesvar J.

Civil Engineer |  Urban & Regional Planner