Hello,
I have a situation where I need to run a Custom Action only when a
certain condition is false. I've attacked the first part of this by
setting a public property if a certain file exists...
<Property Id="DATABASE_EXISTS" Value="1">
<DirectorySearch Id="CheckDatabaseExists"
Path="[STORAGE_LOCATION_LOCAL_FOLDER]" Depth="0">
<FileSearch Id="CheckDatabaseFile" Name="Database.gdb"/>
</DirectorySearch>
</Property>
The custom action in question runs an external executable with a command
line switch, and works fine at the moment. The custom action is
defined...
<Fragment>
<CustomAction Id="CreateNewDataBase" FileKey="ComposerWin32.exe"
ExeCommand="-i [INSTANCE_NAME] -createdatabase" Execute="commit"/>
</Fragment>
And the entry in the <InstallExecuteSequence> tag is...
<Custom Action="CreateNewDataBase" Before="InstallFinalize"
>$ComposerWin32.exe>2</Custom>
The inner text was supplied by a colleague and apparently is to ensure
that the custom action does not occur during uninstall. I haven't found
any documentation on this. Indeed the only mention I have on the inner
text of a custom action is in the Wix.chm help file which suggests that
the inner text is only used for script... "The text node is only valid
if the Script attribute is specified. In that case, the text node
contains the script to embed."
Assuming that the Wix help is out of date and that the inner text can be
used for specifying conditions, how can I extend the condition to take
account of my DATABASE_EXISTS property? I have tried...
<Custom Action="CreateNewDataBase" Before="InstallFinalize"
>![CDATA[($ComposerWin32.exe>2) AND (NOT DATABASE_EXISTS)]]</Custom>
but this produces a 2717 error which aborts the installation.
Alternatively if there is a different way to achieve the same thing,
then please let me know!
Thanks in advance,
Carl
AMX
AMX UK
Auster Road
Clifton Moor
York, North Yorkshire
United Kingdom
YO30 4GD
+44 (0) 1904 343100 office
+44 (0) 1904 343101 fax
AMX South
The Coach House
Grange Court, Grange Road
Tongham, Surrey
United Kingdom
GU10 1DW
+44 (0) 1252 781769 office
+44 (0) 8701 991661 fax
AMX Belgium
Boerenkrijglaan, 96a
B-2260
Westerlo
Belgium
+ 32 (0) 1454 2763 office
+ 32 (0) 1454 2766 fax
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