Inserting Custom Action between Dialogs (InstallUISequence) in WiX
custom-action, installation, windows-installer, wix
Solution
Rather than scheduling the custom action in the `InstallUISequence` you can publish it on the button click:
<Dialog Id="DialogA" ...>
<Control Id="ControlEdit" Type="Edit" Property="MY_PROPERTY" .../>
<Control Id="ControlNext" Type="PushButton" ...>
<Publish Event="DoAction" Value="MyCustomAction">1</Publish>
<Publish Event="EndDialog" Value="Return">1</Publish>
</Control>
</Dialog>
EDIT: The `Publish` element's condition needs to explicitly evaluate to true to run, so add `"1"` as the text of the `Publish` elements.
Problem
I have two custom dialog boxes (plus the required ones `ExitDlg`, `FatalErrorDlg`, etc.), the first one sets a property using an Edit control and the second one shows this property using a Text control. Here is the meaningful code: ``` <Dialog Id="DialogA" ...> <Control Id="ControlEdit" Type="Edit" Property="MY_PROPERTY" .../> <Control Id="ControlNext" Type="PushButton" ...> <Publish Event="EndDialog" Value="Return" /></Control> </Dialog> ``` And then the second dialog: ``` <Dialog Id="DialogB" ...> <Control Id="ControlText" Type="Text" Text="[MY_PROPERTY]" .../> <Control Id="ControlBack" Type="PushButton" ...> <Publish Event="EndDialog" Value="Return" /></Control> <Control Id="ControlNext" Type="PushButton" ...> <Publish Event="EndDialog" Value="Return" /></Control> </Dialog> ``` And the action sequence: ``` <InstallUISequence> <Show Dialog="DialogA" Before="MyCustomAction" /> <Custom Action="MyCustomAction" Before="DialogB" /> <Show Dialog="DialogB" Before="ExecuteAction" /> </InstallUISequence> ``` The custom action changes the value of `MY_PROPERTY`. My problem is how to make the Back button in `DialogB`get back to `DialogA`. Using `NewDialog` is simple, but then I can't get the custom action to be executed between the dialogs, or can I? edit - 2013-05-02 After the answer from @caveman_dick, I tried to change the `DialogA` almost like he said, but instead of using `EndDialog`, I changed to `Action="NewDialog" Value="DialogB"`. But now the Custom Action isn't being called. If I remove the Publish event to go to next dialog, then the CA is called. If I leave as @caveman_dick said, I can't get back to `DialogA` from `DialogB`. edit - 2013-05-02 After searching in book WiX 3.6: A Developer's Guide to Windows Installer XML, I found the following: "if you have more than one Publish event, they must have conditional statements as their inner text. Otherwise, all of the events simply won't be published." So the answer from @caveman_dick is correct, except that you need to change to the following: ``` <Publish ...>1</Publish> ```