Create page with region .NET

Question

In certain cases, we want to create pages automatically using the event system. While doing that we're running into an issue with certain pages that have a Region.

We're succeeding in creating and saving pages that have no regions, but whenever we try to create and save a page with a region 'Main' we get an error stating that there is no region 'Main'.

Our code:

We're 100% sure the NestedRegion we're getting from the RegionSchema is the 'Main' region with the correct RegionSchema.

Answer 1

1. When you are trying to create a page with regions, Tridion would give a notification asking you to update the set of nested Regions to make it valid. In the Event System code, you would want to perform this update by calling the SynchronizeWithSchema method on the page.

2. You would also have to set the page metadata schema with the correct root element namespace.

3. Instead of adding the region to the page, just add the component presentations on the page regions directly. Since you would be setting the page template to the page and the template contains the page schema regions, just adding the component presentations should suffice.

So, here is an example code that creates a page with a component presentation added to the page's first region through the Event System.

// Component Presentation to be added to the page.
Component component = (Component)subject.Session.GetObject("tcm:5-305-16");
ComponentTemplate componentTemplate = (ComponentTemplate)subject.Session.GetObject("tcm:5-67-32");
ComponentPresentation componentPresentation = new ComponentPresentation(component, componentTemplate);

PageTemplate homePageTemplate = (PageTemplate)subject.Session.GetObject("tcm:5-77-128");
Schema homePageSchema = (Schema)subject.Session.GetObject("tcm:5-76-8");

// Create a new page.
Page newPage = new Page(subject.Session, new TcmUri("<TCM ID of the structure group where page is to be created>"));

newPage.Title = "New page";
newPage.FileName = "test";
newPage.PageTemplate = homePageTemplate;
newPage.MetadataSchema = homePageSchema;

// Set the page metadata with the right root element namespace. 
XmlDocument doc = new XmlDocument();
doc.LoadXml("<Metadata xmlns=\"uuid:122e776e-b53b-47ef-b51e-8c4242716a7f\" />");
XmlElement metadataElement =  doc.DocumentElement;
newPage.Metadata = metadataElement;

// Synchronize metadata with the metadata schema. 
newPage.SynchronizeWithSchema(SynchronizeFlags.All);

// Add a CP to the first region. 
newPage.Regions[0].ComponentPresentations.Add(cp);

newPage.TryCheckOut();
newPage.Save(true);