Subject: Re: [xsl] Continuously add to a parameter at each call From: Jon Gorman <jonathan.gorman@xxxxxxxxx> Date: Wed, 9 Nov 2005 15:18:32 -0600 |
> In MS Project, all tasks whether low-level or top-level are grouped as > tasks, for example: > > <Tasks> > <Task><Name>Hardware</Name><OutlineLevel>1</OutlineLevel><WBS>1</WBS></T > ask> > <Task><Name>Bringup</Name><WBS>1.1</WBS></Task> > <Task><Name>Testing</Name><WBS>1.2</WBS></Task> > <Task><Name>Software</Name><OutlineLevel>1</OutlineLevel><WBS>2</WBS></T > ask> > <Task><Name>Development</Name><WBS>2.1</WBS></Task> > <Task><Name>Test</Name><WBS>2.2</WBS></Task> > </Task> > > The way I group these is by <WBS>, if you notice carefully - "Hardware" > has a <WBS> of "1" which means it's a Top-Level task. "Bringup" is a > low-level task that falls under "Hardware" because it has a <WBS> of > "1.1". "Testing" is also another low level task under "Hardware". > Similar arguments can be made for the Top-Level task "Software" and its > tasks. Looks like a pretty standard varient of a grouping problem, no need to go through a bunch of loops. Group the elements or gather via xpath expressions. I could give you more advice, but I can't for the life of me find a "Cost" element in your example and don't have much time to look closely at this right now. I'll take a wild stab and guess it's something like this (although guessing in cases involving Microsoft's xml schemas is always risky). <Tasks> <Task><Name>Hardware</Name><OutlineLevel>1</OutlineLevel><WBS>1</WBS></T ask> <Task><Name>Bringup</Name><WBS>1.1</WBS><Cost>12</Cost></Task> <Task><Name>Testing</Name><WBS>1.2</WBS><Cost>22</Cost></Task> <Task><Name>Software</Name><OutlineLevel>1</OutlineLevel><WBS>2</WBS></T ask> <Task><Name>Development</Name><WBS>2.1</WBS><Cost>1</Cost></Task> <Task><Name>Test</Name><WBS>2.2</WBS><Cost>3</Cost></Task> </Task> So if it is there is a couple of ways to select the proper nodesets. 1) For each task that has an outline element , sum the following siblings that position is less then the next item to have an outline element. Then to produce a grand total sum all Tasks that have a Cost. 2) group all that start with the same digit ie (all 1.*, 2.*) by grouping methods described in the faq. Run sum on the Cost nodes in that nodeset. In a broader set of advice either a) use recursion (think in lisp terms with car and cdr) since you cannot change the value of a variable or b) just group and use the sum as appropriate. I stil haven't seen anything that would force someone to need to use iterative loops. If you do just modify it to use a recursive template. Jon
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