well, just flip thru my gridtree component (http://tinyurl.com/grcfs) developed two months ago (which is still in a mess), it's around 2000 lines of code (after refactoring it three times) and lot of algorithm behind to handle following function:
addNode
removeNode
cutNode
copyNode
pasteNode
indent/outdent code
I think the first methods Anatole mentioned will definitely be a b***h to tackel with, for the nature of List-based component is a little bit tricky then it looks (all the list items are dynamically generated and draw on the screen, this will cause some trouble)
I'm currently implementing gridtree using item renderer for the first column, it's pretty much the same work to extends gridbase and "inject" the tree grid code into it so the API would be more compatible, by using this method I could easily feed a non-xml structure (ie:resultset from java/php) to the component and let it draw the hierarchy and set indent/outdent of each node.
now I'm thinking maybe I should draw those lines and plus sign instead of a simple arrowhead, so it's more like VS2005 :-)
FYI, the component took a whole weekend for prototyping and concept-proofing, *but*, it took almost one and a half month for debugging and refactoring to stablize the code and become really usable in the on-going product/project.
originally I want to open-source the component but later on this become one of my assigned day-job project (so I can fulltime developing it with the approval of my employer), but anyway, I would love to answer any related questions.
jeremy.
On 4/23/06, Anatole Tartakovsky <[EMAIL PROTECTED]> wrote:
Depends on your requirements:For generic case it is 3 step process:1. Wait for beta 3 that supposely comes with the source code.2. Study the code for data grid header, treeview, datagrid, etc3. Write your own code for the control inherited on the top of BaseGrid, with automatic wrapper for the first column - 1500-2000 lines in total to support generic caseFor quick and dirty :Create first column as cell renderer. I believe I posted code in this group for Flex 1.5 tree cell renderer that allowed to add nodes lines to the regular tree - you just paint it within item - still about 200 lines of code for core functionality, another 100 lines for cascade retrieve/grouped sort on the header clicks, 2-3 days of work altogetherHave not seen anything in the public domain, just few developed "for hire" in consulting gigs.HTH,Anatole
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