Adding Root Nodes to an XML-based DataSource

[CI-CUBE]

Hi,

I'm loading a DataBase from XML and want to add nodes later on. As long as such a Node is added as a child node to an existing node that works perfectly. However, if the Node should be a separate root node it does not appear.

A TreeGrid is used to display the DS.

There's no error or warning message I could provide...

Can anyone give me some help please?

Here's the DS:

	class CatStructureDS extends DataSource {

		public static final String ID = "ID";
		public static final String NAME = "Name";
		public static final String LINK = "Link";
		public static final String PARENT = "Parent";
		
		public CatStructureDS(String pId) {

			setID(pId);
			setRecordXPath("/Catalogs/Catalog");
			
			DataSourceTextField tIDField = new DataSourceTextField(ID, ID, 128);
			tIDField.setPrimaryKey(true);
			tIDField.setRequired(true);
			
			DataSourceTextField tNameField = new DataSourceTextField(NAME, NAME, 128);
			tNameField.setRequired(true);
			
			DataSourceTextField tLinkField = new DataSourceTextField(LINK, LINK, 128);
			
			DataSourceTextField tParentField = new DataSourceTextField(PARENT, PARENT, 128);
			tParentField.setForeignKey(pId+"."+ID); 

			setFields(tIDField, tNameField, tLinkField, tParentField);

			setClientOnly(true);
		}
	}

and here the Add code that is called in the DS callback of the DS fetch operation:

					Record tRecord = new Record();
					tRecord.setAttribute(getCatalogServer().getCatAttribute(Server.CatAttribute.ID), "::search");
					tRecord.setAttribute(getCatalogServer().getCatAttribute(Server.CatAttribute.LABEL), X4App.i18n(X4App.APP, "Search"));
					tRecord.setAttribute(getCatalogServer().getCatAttribute(Server.CatAttribute.PARENT), (String)null);
					pDS.addData(tRecord);
					
					tRecord = new Record();
					tRecord.setAttribute(getCatalogServer().getCatAttribute(Server.CatAttribute.ID), "::bookmarks");
					tRecord.setAttribute(getCatalogServer().getCatAttribute(Server.CatAttribute.LABEL), X4App.i18n(X4App.APP, "Bookmarks"));
					tRecord.setAttribute(getCatalogServer().getCatAttribute(Server.CatAttribute.PARENT), (String)null);
					pDS.addData(tRecord);

Ekki

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[Isomorphic]

Can you try using an explicit rootValue rather than null? For example, the String "root".

[CI-CUBE]

sorry for not mention it, I tried this already but it didn't change anything.

Further information that might be relevant, or not:

- if I add a DSCallback parameter to addData it will be called properly
- the number of TreeGrid elements does not increase (by two) in case of root values
- an explicit TreeGrid redraw() does not show the add'l nodes

Cya,

Ekki

[Isomorphic]

Ok thanks, we'll see of we can reproduce a general problem with adding root nodes.