treeview not displaying in proper line

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ASP.NET

treeview

Hello Friends,
I am using a treeview in my application.I am assigning a dataset as datasource to treeview but the lining of treeview is not proper.
One node is aligned left and next is align at some distance from left.

I am using this code

<table>
                                              <tr>
                                                  <td style="text-align:left;border:0 none white;">
                                                  <ul style="list-style:none;">
                                                      <li>
                                                          <asp:TreeView ID="tvnodes" ExpandDepth="0" runat="server" OnTreeNodePopulate="tvnodes_TreeNodePopulate"
                                                          OnSelectedNodeChanged="tvnodes_SelectedNodeChanged" ImageSet="Arrows">
                                                          <%--<ParentNodeStyle ForeColor="Black" />--%>
                                                       </asp:TreeView>
                                                      </li>
                                                  </ul>
                                                  </td>
                                              </tr>
                                          </table>

What to do to display the treeview in a proper format