Nested Repeaters in ASP.NET

Ok so you may want to show some hierarchical data using repeaters. This means nesting a repeater in a repeater. This is fine but it takes some work in the code behind. First off create the main repeaters ItemDataBound event. In that event use the following code. I am old school so forgive me any syntax. For this code to work you must originally bind a DataSet to the parent repeater with a data relation connecting the parent/child tables.

So somewhere (I do mine in page load) bind the entire dataset to the repeater:

RepeaterCapabilities.DataSource = someDataSet;
RepeaterCapabilities.DataBind();

Then put the following code in the repeaters ItemDataBound event

protected void RepeaterCapabilities_ItemDataBound( object sender, RepeaterItemEventArgs e )
{
Repeater rptActivities;

DataRowView drv;

// get the row behind the databind
drv = e.Item.DataItem as DataRowView;

if( drv != null )
{
// get the nested repeater
rptActivities = e.Item.FindControl( "RepeaterActivities" ) as Repeater;

// check for a valid control
if( rptActivities != null )
{
// create a child view and bind it, the relation name must be there for the PK/FK link to work
rptActivities.DataSource = drv.CreateChildView( "CapAndActRelationship" );
rptActivities.DataBind();
}//end if
}//end if
}