To reproduce:
private void radButton1_Click(object sender, EventArgs e)
{
    this.nwindDataSet.Products.Clear();
    this.productsTableAdapter.Fill(this.nwindDataSet.Products);
    radListView1.DataSource = this.nwindDataSet.Products;
}

Workaround:
private void radButton1_Click(object sender, EventArgs e)
{
    this.nwindDataSet.Products.Clear();
    this.productsTableAdapter.Fill(this.nwindDataSet.Products);
    radListView1.DataSource = null;
    radListView1.DataSource = this.nwindDataSet.Products;
}