DoWorkEventHandler BackgroundWorker convert C# to VB.NET

// i dont know how to do this in vb.net
backgroundWorker1.DoWork += work; 

// long operation
private void LongOp(object sender, DoWorkEventArgs e) {// for...}
// show progressdialog
private void button1_Click(object sender, EventArgs e)
{
   // pass method
   WaitOrProgressDialog w = new WaitOrProgressDialog("Test", LongOp);
   w.ShowDialog();
}

public partial class WaitOrProgressDialog : Form
 { 
         public WaitOrProgressDialog(string aTitle, DoWorkEventHandler work)
     {
         InitializeComponent();
         this.Text = aTitle;

         // How to make this in VB.NET?
         backgroundWorker1.DoWork += work;
     }
}