From e44a7e37b6c7b5961adaffc62b9042b8d442938e Mon Sep 17 00:00:00 2001 From: mensonge Date: Thu, 13 Nov 2008 09:49:11 +0000 Subject: New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f --- includes/js/dojox/data/demos/demo_LazyLoad.html | 66 +++++++++++++++++++++++++ 1 file changed, 66 insertions(+) create mode 100644 includes/js/dojox/data/demos/demo_LazyLoad.html (limited to 'includes/js/dojox/data/demos/demo_LazyLoad.html') diff --git a/includes/js/dojox/data/demos/demo_LazyLoad.html b/includes/js/dojox/data/demos/demo_LazyLoad.html new file mode 100644 index 0000000..358ce84 --- /dev/null +++ b/includes/js/dojox/data/demos/demo_LazyLoad.html @@ -0,0 +1,66 @@ + + + + Demo of Lazy Loading Datastore + + + + + + + +

+ DEMO: Lazy Loading Datastore used by dijit.Tree +

+ Description: +

+ This simple demo shows how the dijit.Tree widget can work with a Datastore that does lazy-loading of values into the tree. + In this demo, the Datastore is an extension of ItemFileReadStore that overrides the isItemLoaded() and loadItem() functions of + with ones that can detect 'stub' items and use the data in the stub item to load the real data for that item when it + is required. In this demo, the real data is required when one of the tree nodes is expanded. +

+ The key thing to note is that all the lazy-loading logic (how to locate the data from the backend and so forth) is encapsulated + into the store functions. The dijit.Tree widget only knows about and uses the dojo.data.Read API interfaces to call to the store to + get items, test if child items are fully loaded or not, and to invoke the loadItem() function on items that are not yet fully + loaded but have been requested to be expanded into view. It has no knowledge of how the store actually goes and gets the data. +

+ +

+ + +
+ + + Continents +
+

+ + + -- cgit v1.2.3