Hi Alex,
I am having exactly the same problem as RW had, trying to check if a file
exists or not in the installation directory. I have tried to use custom
action but failed and my code is something like this:
<Property Id="XMLFILEEXISTS">
<DirectorySearch Id="CheckXMLFileDir" Path="[INSTALLLOCATION]"
Depth="0">
<FileSearch Id="My.XML" Name=" My.XML" />
</DirectorySearch>
</Property>
<InstallExecuteSequence>
<Custom Action='ifFILEEXISTS' After='Installvalidate' />
XMLFILEEXISTS
</Custom>
</InstallExecuteSequence>
<Feature Id="MyXML" Level="1" Title="My XML" Description="Select to
permit installer to backup and replace your XML with a clean version.">
<ComponentRef Id="MyXMLFiles" />
<Condition Level='1000'>
XMLFILEEXISTS
</Condition>
</Feature>
Are you able to provide a sample on how to do this?
Many thanks.
Justin
Alexander Shevchuk wrote:
>
> You need to schedule custom action after InstallValidate to set the value
> of the XMLFILEEXISTS property.
>
> Alex
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of RW
> Sent: Friday, February 01, 2008 11:23 AM
> To: wix-users@lists.sourceforge.net
> Subject: [WiX-users] Condition based on INSTALLLOCATION
>
> Hi,
>
> I'm trying to turn on and off a feature based on whether a file already
> exists in the installation directory.
>
> To do this, I'm setting a property based on a FileSearch:
>
> <Property Id="XMLFILEEXISTS">
> <DirectorySearch Id="CheckXMLFileDir" Path="[INSTALLLOCATION]"
> Depth="0">
> <FileSearch Id="My.XML" Name=" My.XML" />
> </DirectorySearch>
> </Property>
>
> Then, in the feature I have a level condition on it:
>
> <Feature Id="MyXML" Level="1" Title="My XML" Description="Select
> to
> permit installer to backup and replace your XML with a clean version.">
> <ComponentRef Id="MyXMLFiles" />
> <Condition Level='1000'>
> XMLFILEEXISTS
> </Condition>
> </Feature>
>
>
> However, this doesn't appear to work. Looking in the log files, it
> appears
> that XMLFILEEXISTS is evaluated as part of the AppSearch, which happens
> before the INSTALLLOCATION property is even set, therefore I'm not sure
> where it's looking!
>
> I could be totally wrong of course... but in the log file, the
> INSTALLLOCATION is set much later than any reference to My.XML.
>
> Any ideas on what the right way to do this is?
>
> Many thanks
>
> RW.
>
>
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