>
For each listitem in the repeater I want write out Title, Explenation, and a
checkboxlist containing the elementtext's. If i use a static name on the
checkboxlistid, every checkboxlist get all the elements. This is not what I
want. I could use a hidde nfield to contain the id, but I still need a uniqe
name for eah checkboxlist.
That's interesting - the ID of the control should not change the
databinding behavior in any way. Here is an example (apologies for any
wierd line breaks):
<form id="Form1" method="post" runat="server">
<table>
<asp:Repeater ID="Repeater1" Runat="server">
<ItemTemplate>
<tr>
<td><%# DataBinder.Eval(Container.DataItem, "Title") %></td>
<td><%# DataBinder.Eval(Container.DataItem, "Explanation")
%></td>
<td>
<asp:CheckBoxList ID="CheckBoxList1" Runat="server"
DataSource='<%#DataBinder.Eval(Container.DataItem, "Elements")
%>'
DataTextField="Name">
</asp:CheckBoxList>
</td>
</tr>
</ItemTemplate>
</asp:Repeater>
</table>
</form>
The code behind this form is:
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace aspnet.repeaters
{
public class checkboxlist : System.Web.UI.Page
{
protected Repeater Repeater1;
private void Page_Load(object sender, System.EventArgs e)
{
if(!Page.IsPostBack)
{
Category[] categories = GetCategories();
Repeater1.DataSource = categories;
Repeater1.DataBind();
}
}
private Category[] GetCategories()
{
Category[] categories = new Category[3];
for(int i = 0; i < categories.Length; i++)
{
categories[i] = GetCategory(i);
}
return categories;
}
private Category GetCategory(int i)
{
string title = i.ToString() + "CatTitle";
string ex = i.ToString() + "Explanation";
Element[] elements = GetElements(i);
return new Category(title, ex, elements);
}
private Element[] GetElements(int i)
{
Element[] elements = new Element[i + 2];
for(int j = 0; j < elements.Length; j++)
{
elements[j] = new Element(i.ToString() + j.ToString()
+ "Element");
}
return elements;
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
class Category
{
public Category(string title, string explanation,
Element[] elements)
{
this.title = title;
this.explanation = explanation;
this.elements = elements;
}
public string Title
{
get { return title; }
}
public string Explanation
{
get { return explanation; }
}
public Element[] Elements
{
get { return elements; }
}
private string title;
private string explanation;
private Element[] elements;
}
class Element
{
public Element(string name)
{
this.name = name;
}
public string Name
{
get { return name; }
}
private string name;
}
}
What I'll get is a Repeater with three rows. Each row has a
CheckBoxList with different elements displayed (and they all have
unique client IDs).
--
Scott
http://www.OdeToCode.com/blogs/scott/ 
