Pseudo-Crosstab table in XSLT linked to WSS 3.0

Posted on 2009-06-29
Last Modified: 2013-11-18
Trying to manage and intuitively display a large amount of data, which breaks down like this:
2 main lists: Package List, Steps List
Each package had a Planned, Forecast and Actual (P/F/A) date associated with each Step, which is stored in a third list (Dates) and linked to the 2 other lists.
There are many steps in the Steps list, but only a dozen or so are of interest in the view I'm building, and are numbered sequentially in a specific column.

I've created a joined datasource in SPD2007, and managed to:
- for-each Step*, create a <th> entry in the first row
- for-each Package, create a new <tr> and a first cell which carries the package name and rowspan=3, then
     - for each of the Planned, Forecast and Actual, continue/create a <tr>, then call a template (in the CODE section below) to fill in the data, by matching the package at the beginning of the row, and the column

The questions are these:
- Is there anything to be gained by replacing this structure with <apply-templates> rather than with <call-templates> and <for-each>
- Is it possible to lookup 'vertically' or pass a param somehow (or a sequence thereof) to obtain the steps (IDs) list for filtering the dates?
>     Currently, my template relies on each date being created in order (within the Dates table), for correct display, and also doesn't account for missing values (i.e. a date for step 5 being entered without having a date for step 4) so mis-alignments w.r.t the column headers occur.
>     I've tried using a nested for-each (selecting the relevant steps then the relevant dates) but the resulting processing causes my SPD to eat up 100's of MBs and slow to a halt.
<xsl:template name="main_table.pfa">
	<xsl:param name="PFA"/>
	<xsl:param name="Pkg"/>
	<td class="style1"  style="width: 13px">
		<xsl:value-of select="substring($PFA,1,1)"/>
	<xsl:for-each select="$Dates[@Package = $Pkg and @DateType = $PFA]">
		<td class="style1" nowrap="nowrap">
			<xsl:value-of select="ddwrt:FormatDateTime(string(@DateValue) ,1033 ,'dd-MMM-yy ')"/>

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Question by:RobertNoble
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Expert Comment

ID: 24740204
You can sort if you want the Date list to be in order (
<xsl:for-each select="$Dates[@Package = $Pkg and @DateType = $PFA]">
      <xsl:sort select="substring($PFA, 1, 4)" data-type="number"
      <xsl:sort select="substring($PFA, 6, 2)" data-type="number"
      <xsl:sort select="substring($PFA, 9, 2)" data-type="number"

i don´t understand what you mean by "Is it possible to lookup 'vertically'"

if you are using a nested for-each, then apply-templates is a better solution for perfomance, because it only compiles the loop once.

Author Comment

ID: 24744661
- The $PFA parameter is either 'Planned', 'Forecast' or actual and only the first Character is kept to generate the 'P', 'F' and 'A' in the second column

- By 'lookup vertically', I mean for each cell match not only the outer and inner rows (Package & P/F/A) but also the step which is in the <th> element above. I was thinking of perhaps generating a sequence in the template which gets the column headers from the Steps list, by redesigning the template to be recursive.
(current non-recursive header generator in code below)
Basically in the steps list, there is an int column enumerating which steps appear in the view and in what order.  others are labelled 'N/A'

I'm not exactly sure what your substring() is doing?  I'm assuming you think that PFA is a date? (See clarification above). For the sorting of dates, the problem is that they'd need to be sorted by the 'Step' whose ID is part of the record, since you may end up with a step which is completed before the previous ( >

Do you know any good, clear example/explanation of proper implementation of a apply-templates?  The one on w3schools is not elaborate enough for me to fully grasp how it effectively replaces a for-each.

Thanks in advance for any insight provided.
	<xsl:template name="main_table.colheaders">
		<xsl:for-each select="$Steps">
			<xsl:if test="@Rpt_RFPShed != 'N/A'">
				<th class="style1">
					<xsl:value-of select="@Title"/>

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Expert Comment

ID: 24744801
Thought PFA was date

clear example:


Author Comment

ID: 24773100
I'm still not clear on how the templates are actually called in the example on the page provided?

is it because there is no '/' template that the second most general is matched? By that logic, I'd need to have a match="/" template in order for the others not to be matched, except when called by apply-templates?

does that sound right?

Accepted Solution

RobertNoble earned 0 total points
ID: 24784518
Finally, I ended up doing it this way:
- generating a row for each package, then passing the package name (Pkg) though a call-template,
- running a recursive for-each and matching the count variable to the column indices for the report, then passing the matching column name (Step) and the package name through another call-template,
- finally, when (Date [@Package = $Pkg and @DateStep = $Step]) show value-of, otherwise print '-'

Thanks for the suggestions eirikurh

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