/// <summary>
/// Preliminary render action invoked before RenderContent <see cref="RenderContent"/>.
/// </summary>
/// <param name="printContext">The print context.</param>
protected override void BeginRender(PublishingEngine.PrintContext printContext)
{
if (!string.IsNullOrEmpty(this.RenderingItem["Item Reference"]))
{
this.DataSource = this.RenderingItem["Item Reference"];
}
if (!string.IsNullOrEmpty(this.RenderingItem["Data Key"]) && printContext.Settings.Parameters.ContainsKey(this.RenderingItem["Data Key"]))
{
var data = printContext.Settings.Parameters[this.RenderingItem["Data Key"]].ToString();
if (!string.IsNullOrEmpty(data))
{
var items = StringUtil.Split(data, '|', true);
if (items.Count() > 1)
{
this.DataSources = data;
return;
}
var contextItem = printContext.Database.GetItem(data);
if (contextItem != null)
{
this.DataSource = contextItem.ID.ToString();
}
}
}
// Get the data item assigned to the repeater
var dataItem = this.GetDataItem(printContext);
if (dataItem != null)
{
// apply the selector to the data item
if (!string.IsNullOrEmpty(this.RenderingItem["Item Selector"]))
{
var xpath = this.RenderingItem["Item Selector"];
if (!string.IsNullOrEmpty(xpath))
{
var items = dataItem.Axes.SelectItems(xpath);
if (items != null)
{
this.DataSources = string.Join("|", items.Select(t => t.ID.ToString()).ToArray());
}
}
}
else if (!string.IsNullOrEmpty(this.RenderingItem["Item Field"]))
{
// Get the number of times we need to repeat the child elements
this.Count = dataItem[this.RenderingItem["Item Field"]];
}
}
}
/// <summary>
/// Renders the content.
/// </summary>
/// <param name="printContext">The print context.</param>
/// <param name="output">The output.</param>
protected override void RenderContent(PublishingEngine.PrintContext printContext, System.Xml.Linq.XElement output)
{
if (!string.IsNullOrEmpty(this.ChildDataKeyName))
{
printContext.Settings.Parameters[this.ChildDataKeyName] = this.DataSource;
}
if (!string.IsNullOrEmpty(this.DataSources))
{
foreach (var dataSource in this.DataSources.Split(new[] { '|' }, StringSplitOptions.RemoveEmptyEntries))
{
this.DataSource = dataSource;
if (!string.IsNullOrEmpty(this.ChildDataKeyName))
{
printContext.Settings.Parameters[this.ChildDataKeyName] = dataSource;
}
RenderChildren(printContext, output);
}
return;
}
var dataItem = this.GetDataItem(printContext);
if (dataItem == null && !printContext.Settings.IsClient)
{
return;
}
int count;
if (!string.IsNullOrEmpty(this.Count) && int.TryParse(this.Count, out count) && count > 0)
{
for (int i = 0; i < count; i++)
{
// Render child elements
this.RenderChildren(printContext, output);
}
return;
}
this.RenderChildren(printContext, output);
}