Customize the action when the X button of the dialog box in the msi is clicked

[kokleong-idea]

Hi,

I am using WixSharp Managed Setup - Custom WPF UI (WiX4) project template to build msi. I found that when I click on the X button on the top right hand corner, the msi dialog is immediately closed without prompting for confirmation. May I know how can I customize the response when the X button is clicked by the users?

In addition, I would also like to find out whether there is a way to hide the top bar of the msi dialog box so that the minimize and X buttons are not visible so that I can add my customized X button.

I am looking forward to your prompt advice. Thanks in advance.

[oleg-shilo]

Since you are using custom UI have access to the parent form hosting the dialogs. For WPF UI dialogs the solution would be:

public partial class WelcomeDialog : WpfDialog, IWpfDialog
{
    public WelcomeDialog()
    {
        InitializeComponent();
    }

    public void Init()
    {
        this.DataContext = model = new WelcomeDialogModel { Host = ManagedFormHost };

        ManagedFormHost.ParentForm.FormClosing += (s, e) =>
        {
            if (MessageBoxResult.Yes != MessageBox.Show("Do you want to close?", "FormClosing", System.Windows.MessageBoxButton.YesNo))
                e.Cancel = true;
        };
    }

If you want to remove the borders you can do it programmatically by changing the top level hosting form bodred style.