Nested Repeaters in ASP.NET

Question

I have a class that contains hierarchical data. I want to present this data in my ASP.net webapp using nested repeaters. How do I do this? I\'ve only ever done one level

Answer 1

It's always cleaner to deal with the datasource than messing about with ItemDataBound, but this is even more the case when nesting Repeaters:

  
    
      
        
          <%#SomeExtractingMethodLikeEval()%>
        
      
    
  

The inner datasource could also be an evaluated property, or a call to a method that returns the enumeration wanted. Just be aware that it will be called with an object. I prefer to write the specific version, and then overload:

protected IEnumerable GetNames(Family fam)
{
  foreach(Person p in fam.Members)
    yield return p.FirstName + " " + p.Surname;
}
protected IEnumerable GetNames(object famObj)
{
    return GetNames((Family)famObj);
}

One thing to be aware of is that if you want to get the current object in the parent repeater than you have to obtain it with:

((RepeaterItem)Container.Parent.Parent).DataItem