Re: [WiX-users] Passing Variables from C# custom BA to WIX

[Rob M. <ro...@fi...>]

Don't use variables. Process the PlanPackageBegin event and tell the engine the state of the package.

-----Original Message-----
From: linos [mailto:li...@ho...] 
Sent: Wednesday, July 30, 2014 13:24
To: wix...@li...
Subject: [WiX-users] Passing Variables from C# custom BA to WIX

I'm currently learning how to implement custom BA's through WIX and happen to run into a road block.  I've created a custom GUI through WPF and need pass back to the WIX bootstrapper app, variables that I set in the C# application.
Here is my C# function that calls the  Bootstrapper app private void InstallAExecute()
        {
            IsThinking = true;
            Bootstrapper.Engine.StringVariables["AToInstall"] = "A";
            Bootstrapper.Engine.Plan(LaunchAction.Install);
        }
and in my Boostrapper app, I have the following element <Variable Name ="AToInstall" bal:Overridable="yes" Value="A" Type="string"/> declared above my BootstrapperApplicationRef element.

Then in my element Chain, I would like to add a conditional to trigger a particular msi to be installed when the variable satisfies the condition. 
This is what I have in my chain, but I think my syntax is incorrect.
<Chain>
      <PackageGroupRef Id='Netfx4Full' />
      <MsiPackage SourceFile="..\Path\To\Installer.msi"
Id="InstallationPackageId" Cache="yes" Visible="no" InstallCondition ="AToInstall=A"/>
    </Chain>

Any idea where I went wrong?




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