Does anyone know if/how I can stop a WiX-based MSI installer from proceeding to the next dialog when a certain condition is met? I have the following code: ``` WEBSITE_APPLICATIONPOOLUSERTYPE = "local" WEBSITE_APPLICATIONPOOLUSERTYPE = "domain" 1 ``` CheckPortNumber refers to this: ``` ``` Also, somewhere else, we have this declare: ``` <Publish Dialog="SelectIISApplicationPoolUserDialog" Control="Ne…

Avoid proceeding to the next dialog with a condition in a WiX installer

installation, windows-installer, wix

Solution

You'll need to set `Publish/@Order` so that everything is evaluated in the correct order.

Something like the following should probably work:

<Publish Dialog="MyDlg" Control="Next" Event="DoAction" 
         Value="SomeAction" Order="1">1</Publish>
<Publish Dialog="MyDlg" Control="Next" Event="SpawnDialog" 
         Value="MyWarningDlg" Order="2">Not CONDITION</Publish>
<Publish Dialog="MyDlg" Control="Next" Event="NewDialog" 
         Value="MyOtherDlg" Order="3">CONDITION</Publish>

Problem

Does anyone know if/how I can stop a WiX-based MSI installer from proceeding to the next dialog when a certain condition is met? I have the following code: ``` <Dialog Id="SelectIISApplicationPoolUserDialog" Width="370" Height="270" Title="$(var.ApplicationPoolUserDialogTitle)"> <Control Id="Next" Type="PushButton" X="236" Y="243" Width="56" Height="17" Default="yes" Text="!(loc.WixUINext)"> <Publish Property="APPLICATIONPOOLUSER" Value="{}">WEBSITE_APPLICATIONPOOLUSERTYPE = "local"</Publish> <Publish Property="APPLICATIONPOOLUSER" Value="1">WEBSITE_APPLICATIONPOOLUSERTYPE = "domain"</Publish> <Publish Event="DoAction" Value="CheckPortNumber">1</Publish> </Control> ``` CheckPortNumber refers to this: ``` <Binary Id="IISCA" SourceFile="binaries/MyCustomActions.IIS.CA.dll" /> <CustomAction Id="CheckPortNumber" BinaryKey="IISCA" DllEntry="IsFreePort" Execute="immediate" /> ``` Also, somewhere else, we have this declare: ``` <Publish Dialog="SelectIISApplicationPoolUserDialog" Control="Next" Event="NewDialog" Value="SetSqlServerConnectionDialog">ISPORTFREE</Publish> ``` When I run the installer and get to the dialog to select the application pool user, I click next. The custom action then checks the portnumber and sets the ISPORTFREE variable. However, the next dialog isn't shown, regardless of the result of ISPORTFREE. But when I click Next a second time, the next dialog is shown. So what I want is: when I click next and the entered portnumber is in use, I get a warning and don't proceed to the next dialog. If it isn't in use, I proceed to the next dialog.

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