CODEWITHSUNDEEP
wix
user1668102
user1668102

Reputation: 149

Validation of a command line parameter in WiX

I want to validate the value of a command line property in WiX given by the user during installation. If the value of the property is not one among the specific set, it should take a default value and create a registry entry.

For example, property USERLEVEL should have value 1-4. If user specifies any other value it should default to 1 and write it to the registry. The installer does not have a UI component and we want to do this using some conditional statement.

Upvotes: 2

Views: 1465

Answers (2)

Vinoth
Vinoth

Reputation: 1995

You can use the SetProperty element to change the USERLEVEL property value. You can use the (USERLEVEL<1 OR USERLEVEL>4) Condition to check the value, but it won’t work if end user pass any non-integer value like ‘A’.

<Property Id="USERLEVEL" Secure="yes" />

<SetProperty Id="USERLEVEL" Value="1" After="AppSearch">
    USERLEVEL&lt;&gt;1 AND USERLEVEL&lt;&gt;2 AND USERLEVEL&lt;&gt;3 AND USERLEVEL&lt;&gt;4
</SetProperty>

You can use the below code to write the property into registry.

<Component Id="CMP_UserLevel" Guid="{FD70BBE3-F7F1-460E-AA7C-56750F66536D}">
      <RegistryKey Root="HKLM" Key="Software\Sample, Inc.\Test Installer">
          <RegistryValue Name="USERLEVEL" Value="[USERLEVEL]" Type="integer" />
      </RegistryKey>
</Component>

Upvotes: 0

Rob Mensching
Rob Mensching

Reputation: 35976

That can be done easiest with a "Launch Condition". As a child of Product element add a Condition element with a message. For example:

<Product ...>
   ...

   <Condition Message='The USERLEVEL property has an invalid value of: [USERLEVEL]. Please ensure the value falls in the range of 1 to 4.'>
      USERLEVEL&gt;0 AND USERLEVEL&lt;5
   </Condition>

I used the &gt; and &lt; rather than wrapping the condition in CDATA but you can do it however you like. The end result is that you want the condition to say something like USERLEVEL > 0 and USERLEVEL < 5 (or if you prefer: USERLEVEL >=1 AND USERLEVEL <= 4).

Upvotes: 2

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