Set property to either of two values

[shelmers]

I've searched the help text and the forums and haven't found an answer for this problem. If I've missed something obvious, feel free to hit me over the head with it!

I have created two searches that look for values in the registry, let's call them SEARCH1 and SEARCH2. SEARCH1 will always return a result; SEARCH2 may or may not.

I need to create a registry key that includes a parameter as one of the nodes in the key. I know how to do this in the Registry window using something like this:
ABC/[MY_VALUE]/Application/...

The challenge I have is the logic for setting MY_VALUE. If SEARCH2 returns a value, I want to set MY_VALUE to the result of SEARCH2; otherwise, I want to set MY_VALUE to the result of SEARCH1.

Is there a way to accomplish this in AI that I haven't found yet?

As a fallback, I think I can create two separate reg keys in the registry window using the User Guide article about 32-bit/64-bit reg entries (http://www.advancedinstaller.com/user-g ... istry.html). However, it seems much cleaner to be able to set a property to either of two values.

Thanks.

[glmdev]

Hello!
Some time ago, I had a similar problem.
I have solved it by using two "new custom actions" of type "Property set with formatted".

Action 1:

Code: Select all

Property Name : MY_VALUE
FormattedText : [SEARCH2]
Executing Condition: SEARCH2 <> ""

Action 2:

Code: Select all

Proerty Name: MY_VALUE
Formatted text : [SEARCH1]
Executing Condition: SEARCH2 = ""

Kind regards,
Christof Konstantinopoulos

[shelmers]

Great idea!! Thank you!

After some experimentation, I ended up using a variation of your suggestion. Because I already have a launch condition that either SEARCH1 or SEARCH2 must exist, I created MY_VALUE as a property on the Installation Parameters page and gave it a value equivalent to the result of SEARCH1. That way I only need one custom action

Code: Select all

Property Name : MY_VALUE
FormattedText : [SEARCH2]
Executing Condition: SEARCH2 = "XYZ"

As a result my registry key name is the SEARCH1 value by default but takes the SEARCH2 value if it meets the test.

Thanks again,
Scott

[max2u]

Aloha,
well this didnt work for me in the default install directory, is there a way to excute the actions before checking for the install directory.

thanks.

[shelmers]

It may depend on where you place the custom actions. I initially placed mine under Install in the InstallExecuteSequence. As I recall, they they didn't work there (it was apparently too late in the process). So I added the WelcomeDlg to the InstallUISequence, placed the custom action under that dialog, and everything worked exactly as I hoped.

Scott