如何创建一个简单的只读TDataSet来访问内存结构

Question

I have a memory structure which is (pretty much) static and read-only. I would like to present its data as a TDataSet descendent to enable me to use DB grids etc to view / report the data. I have no need of editing (in fact this must be prohibited). I've see this SO question and other advice that some home-rolled code 'has problems with bookmarks'. I really only want a simple solution and ideally this would be where I could create a simple 'virtual' table with my known field types and then be given an 'OnGetFieldData' event for each one. My other choice is to use a DevExpress TDxMemData in-memory table and populate it on changes in my data but this is less efficient and more messy. Is there any other solution?

Answer 1

Don't use TDataSet descendant, use LiveBindings instead. Your situation is exactly what they were created for. Here are some videos about their use: http://www.embarcadero.com/coderage/sessions