Binding ListView Field to Value in Code-Behind - asp.net

Question

I'm displaying fields from a DB call in a ListView. I had to re-code my database query because of an issue with repeating groups. I also didn't want to have to deal with nested ListViews. So now I am trying to set the header to the value of radio button list selection. I was trying to write a custom method to return that value but could not remember the syntax.
How can I set the header in the LayoutTemplate from the code-behind so that it doesn't repeat?
<LayoutTemplate>
<div class="resultsGrid">
<strong><%# GetHeader() %></strong>
<asp:PlaceHolder runat="server" ID="resultsPlaceHolder">
</asp:PlaceHolder>
</div>
</LayoutTemplate>
<ItemTemplate>
// rest of data
</ItemTemplate>

Answer 1

I was able to solve this as follows:
<asp:ListView ID="resultsList" ItemPlaceholderID="resultsPlaceHolder"
OnItemCreated="ResultsList_ItemCreated" runat="server">
<LayoutTemplate>
<div class="resultsGrid">
<strong><asp:Label ID="headerLabel" runat="server"></asp:Label></strong>
<asp:PlaceHolder runat="server" ID="resultsPlaceHolder">
</asp:PlaceHolder>
</div>
</LayoutTemplate>
<ItemTemplate>
// rest of data
</ItemTemplate>
</asp:ListView>
And in the code-behind:
protected void ResultsList_ItemCreated(object sender, ListViewItemEventArgs e)
{
if (e.Item is ListViewItem)
{
Label tempLabel = resultsList.FindControl("headerLabel") as Label;
tempLabel.Text = ViewState["ParkName"].ToString();
}
}