Usually I use package actions but that doesn't work to well. Maybe you can use the InstalledPackage.BeforeDelete event? If it works please let me know.

Cheers,

Richard

Hi Richard

I have tried the InstalledPackage.BeforeDelete event without much luck at the moment.

Have you ever got it to work before?

My Bad

It does fire fine, I just forgot to register the old style event on App Startup of Umbraco.

    protected override void ApplicationStarted(UmbracoApplicationBase umbracoApplication, ApplicationContext applicationContext)
    {
        //Check to see if section needs to be added
        AddSection(applicationContext);

        //Check to see if language keys for section needs to be added
        AddSectionLanguageKeys();

        //Add OLD Style Package Event
        InstalledPackage.BeforeDelete += InstalledPackage_BeforeDelete;
    }

    /// <summary>
    /// Uninstall Package - Before Delete (Old style events, no V6/V7 equivelant)
    /// </summary>
    /// <param name="sender"></param>
    /// <param name="e"></param>
    void InstalledPackage_BeforeDelete(InstalledPackage sender, System.EventArgs e)
    {
        //Check which package is being uninstalled
        if (sender.Data.Name == "Analytics")
        {
            //Start Uninstall - clean up process...
            Uninstall.RemoveSection();
            Uninstall.RemoveSectionLanguageKeys();
        }
    }

I'm not sure if anything has changed in v7 with uninstalling packages, but here's what I do for the uComponents uninstall - which has been working fine since (at least) Umbraco 4.8.

In the package.xml manifest, you can add a custom PackageAction, with the option of undo=true:

<Action runat="install" undo="true" alias="uComponents_Uninstaller" />

e.g. https://github.com/leekelleher/uComponents/blob/master/package/package.xml#L31

Then when the package is uninstalled, it will run the Undo method in the custom PackageAction,

e.g. https://github.com/leekelleher/uComponents/blob/master/src/uComponents.Installer/PackageActions/Uninstaller.cs#L67

Cheers,
- Lee

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