WiX burn custom BA - how to pause progress when Cancel command fires? - wix

Using a custom managed bootstrapper application, I am unable to get the setup progress to stop when the cancel button is clicked. I pull up a confirmation view with Yes/No options. Once cancellation has been confirmed, the setup rolls back just fine. Or, if declined, it continues along. This was done in accordance with:
Cancel Installation and Rollback using wix burn Bootstrapper UI
I noticed same problem also occurs in the WiX setup kit itself, where you could click cancel and wait, and the setup instead of waiting for user to confirm or decline cancellation, continues along.
So, my question is, how do I pause the progress, until the Cancel command is confirmed (or declined) in the confirmation view?
Update: I am attempting to do this by the following mechanism:
Add a new property called CancelWaiting. If CancelWaiting is true, then in the ProgressViewModel, change the logic such that the <PropertyChangedEventArgs>.Result is set to Result.Suspend. The challenge here is to do multiple command binding. The other way would be to combine the Cancel and CancelWaiting paths into one. Anyway, I'll update this thread once I get this going. If anyone has any other ideas, please do post.

Returning Result.Suspend will instruct the Burn engine to stop the installation as soon as possible and keep the Bundle registered to execute again. That is not likely what you want to do.
If you want to prevent the progress from continuing, then you must have the progress callback method wait and not return. You can either do that by showing the message box from the progress callback method or have the progress callback wait on an event and signal the event after the user makes a choice on the UI thread.

I know this is old, but my approach may help someone else struggling. I faced the same issue where I had to pause the progress of the installation/uninstallation of custom burn wpf app.
So this is how I solved it:
I created a popup a modal window via Window.ShowDialog(), because the gui thread will block until the popup is closed.
When user press exit/cancel you can do something like this:
ModalWindow newWindow = new ModalWindow();
newWindow.ShowDialog();
You can add new Window and call it in this way. That will pause the UI thread till user close or give feedback to ModalWindow.
But if you are looking for other approach, here is a good read
http://deanchalk.com/wpf-modal-controls-via-dispatcherframe-nested-message-pumps/

Related

Is there a way to make the burn wait for an event to complete?

I'm building a bootstrapper application with a customized ui, I want to show the ui after the detect package event complete.
Yes. That is possible. A custom BA (BootstrapperApplication) has full control over when/how/if UI is presented. You could choose to show no UI until after the detect complete callback.

MSI: Show message box in UI phase of installation

I'm updating an InstallShield based installer. I've added a new managed custom action, written in C#, and packaged using Wix DTF.
Action is invoked correctly, and performs necessary actions.
Problem I have is showing an error message to user.
Method 1: MsiProcessMessage
From articles I've read, I understood that MsiProcessMessage is the correct way to do it, however this method does not work in UI sequence (before setup actually starts copying files and modifying system). In install sequence this method works. Code which I use is following:
Record record = new Record() { FormatString = "Password is not valid for this user." };
session.Message(
InstallMessage.Error | (InstallMessage)(MessageBoxIcon.Error) | (InstallMessage)MessageBoxButtons.OK,
record
);
Is it actually impossible to show an error message in UI sequence (Immediate execution) using MsiProcessMessage?
Method 2: MessageBox.Show
Using Windows.Forms works for showing a message box. However, message is displayed in background of setup wizard, and shows a separate icon in Windows taskbar.
Is there a way to get window handle of installation wizard, and that way solve this problem?
You didn't quite mention this, but I'm guessing that you are invoking your custom action off a DoAction ControlEvent, published off of something like a button click. Underneath the covers, this is very different from scheduling it in the InstallUISequence. MsiProcessMessage doesn't work from DoAction.
For proper integration with the Windows Installer UI experience, you should avoid using MessageBox.Show (your method 2). Better-integrated options include:
Tweaking a message that can be shown on the dialog from which you invoke this action
Showing a popup message by conditionally invoking a SpawnDialog ControlEvent
Showing an additional wizard panel by conditionally invoking a NewDialog ControlEvent
All three of those involve editing the UI of your project, but differently.

Windows Installer : SpawnAndWaitDialog not getting closed automatically?

I am using a C# custom action followed by a SpawnAndWait Dialog.
Something Like
PROPERTY WORK_DONE="False"
1.LaunchCustomAction (This does some work and sets WORK_DONE to True)
2.Show SpawnAndWait (Exit when WORK_DONE="True")
Problem,For SpawnAndWait Dialog to Appear, I need to mark my CustomAction as
asynchronous, that is to continue installation without waiting for the custom action to finish. But Whenever I do this, Properties are not getting updated and as a result SpawnAndWait Dialog doesn't get closed automatically.
If I don't mark my Condition as async, The dialog doesn't appear and it waits for the custom action to finish first.
My Requirement is to Show a small popup window that lets the user know that there is a background task going on, Please wait.
Please let me know what am I doing wrong.
I am using C# custom Action via Wix Toolset to build the custom action and AdvancedInstaller to build the installer.
I would highly recommend you (if you are willing to) to write your custom action as an unmanaged custom action written in native C++ and use the MsiSetProperty function to set your property. There are lots of Windows Installer incompatibilities and limitations in what regards its integration with managed custom actions.
If you still need to use a managed C# custom action please try to add your custom action as a custom action with sequence in Advanced Installer if this configuration is suitable for your scenario.

bootstrapper application rollback

I am trying to create a Wix burn bootstrapper that installs my msi. The bootstrapper exe is working fine but the only issue is that whenever I try to cancel the installation in midway the custom actions which are added in msi is not get stopping. Can anyone tell how to stop and rollback the installation while clicking cancel button. Thanks in advance.
A custom action must send ::MsiProcessMessage() calls to provide the possiblity to recieve the cancel and handle the return code from that API (usually ERROR_INSTALL_USEREXIT or IDCANCEL). Then the custom action must exit.
If you look at some of the WiX standard custom actions you'll see lots calls to WcaProcessMessage() and such. We save the return code from those and WcaFinalize() returns the correct thing on exit. Check out src\ca\wcautil\wcautil.cpp and src\ca\wcautil\wcawrap.cpp for example code.

Show custom dialog with Launch Condition

I would like to show the my custom dialog rather than the message box when Launch Condition failed in Wix. Normally, the message box of Launch Condition has OK button, but I would like to make more than that with some further actions with my dialog.
Could you please advise me how I can make it?
Thanks.
Dialogs can be sequenced using the InstallExecuteSequence and Custom elements. Schedule it prior to your Welcome dialog and after the LaunchConditions action. You may want an error custom action scheduled in the execute sequence to handle logging during silent installs.
You may also want to author your dialog into the main wizard loop (after install welcome ) using Publish elements also. It's hard to say without understanding your exact needs.