looping over <li> using ASP.NET

I want to change the visibility of <li> collection throw server side.

My HTML code looks like this:

<ul>
    <li runat=server id="l1"></li>
    <li runat=server id="l2"></li> 
    <li runat=server id="l3"></li> 
    <li runat=server id="l4"></li> 
    ...
</ul>

Now as I said I want to loop over the c开发者_开发百科ollection and change the visibility of some li using their ID

something like

for (i=0;...) {
    l+I.visible=false
}

Any help will be grateful.

Untested, but this could work:

First change, your ul to be running on the server.

<ul runat="server" id="myList">

Then iterate through it

foreach (Control li in myList.Controls)
{
      if(li is HtmlGenericControl)
         li.Visible = false;
}          

Example Code:

Html:

  <ul runat="server" id="myList">
    <li runat=server id="l1">1</li>
    <li runat=server id="l2">2</li> 
    <li runat=server id="l3">3</li> 
    <li runat=server id="l4">4</li>        
  </ul>


  <asp:Button ID="Button1" runat="server" Text="Button" onclick="Button1_Click" />

Button Click Handler:

protected void Button1_Click(object sender, EventArgs e)
{
    foreach (Control li in myList.Controls)
    {
        if (li is HtmlGenericControl)
            li.Visible = false;

     } 
 }

EDIT 2 - Code in VB.NET

For Each li As Control In myList.Controls
    If TypeOf li Is HtmlGenericControl Then
        li.Visible = False

    End If
Next

Try this :

     <ul>            
        <% for (int i = 0; i <= 10; i++){%>
         <li runat=server id="l<%Response.Write(i); %>"><%=i%></li> 
        <% } %>
     </ul>

just inside html page !