mostrar un gridview vacio

[superookie]

Aquí un pequeño ejemplo:

Código:

   protected void Page_Load(object sender, EventArgs e)
    {
        this.LoadData();
    }

    private void LoadData()
    {
        DataTable dt = new DataTable();

        dt.Columns.Add("Name");
        dt.Columns.Add("User");
        dt.Columns.Add("Email");

        DataRow dr = dt.NewRow(); 

        dr["Name"] = String.Empty;
        dr["User"] = String.Empty;
        dr["Email"] = String.Empty;

        dt.Rows.Add(dr);

        this.GridView1.DataSource = dt;
        this.GridView1.DataBind();
    }

    protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        GridViewRow row = e.Row;
        if (row.RowIndex > -1)
            for (int i = 0; i < row.Cells.Count; i += 1)
                row.Cells[i].Visible = false;
    }

Saludos!