Just find out this situation will only exist in Installation UI Testing.
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I have three features in my installer projects.
One is named as "Required", which is set to install by default and the Installation Settings is set to [Always install this feature].
The other two are optional, user can select "Type A" or "Type B".
Now I want to calculate the actual Primary Volume Space Required.
E.g. if the user chooses to install Type A, the Primary Volume Space Required should be ("Required Space" + "Type A Space").
I know we can use [PrimaryVolumeSpaceRequired] value to display the value of the selected feature, but it does not satisfy for my situation.
Any one can help? Thank you!