VB -> C#: Multi-line WinForms 'Handles' syntax silently drops events

[jconnop]

Input code

In Form1.vb :

Public Class Form1
    Private Sub MultiClickHandler(sender As Object, e As EventArgs) Handles Button1.Click,
                                                                            Button2.Click
        MessageBox.Show($"Handled event from {DirectCast(sender, Control).Name}")
    End Sub
End Class

Erroneous output

In Form1.Designer.cs :

        private void InitializeComponent()
        {
            _Button1 = new Button();
            _Button1.Click += new EventHandler(MultiClickHandler);
            Button2 = new Button();
            SuspendLayout();

Expected output

In Form1.Designer.cs :

        private void InitializeComponent()
        {
            _Button1 = new Button();
            _Button1.Click += new EventHandler(MultiClickHandler);
            _Button2 = new Button();
            _Button2.Click += new EventHandler(MultiClickHandler);
            SuspendLayout();

Alternative Working Input

The conversion works fine if the input events are all on one line, i.e. :

Public Class Form1
    Private Sub MultiClickHandler(sender As Object, e As EventArgs) Handles Button1.Click, Button2.Click
        MessageBox.Show($"Handled event from {DirectCast(sender, Control).Name}")
    End Sub
End Class

Details

• Product in use: VS extension
• Version in use: 8.2.2
• Did you see it working in a previous version, which? No
• This is particularly problematic as the conversion produces no error, and the output compiles, but the behaviour of the program changes.