[xsl] How to do Control Break?

[Jonathan_Wheelhouse@xxxxxxxxxx]

Hi

I've got what I call a control break problem which I could easily solve in
a procedural language but don't know how to in XSLT.

The problem is that I want to alternate a <tr bgcolor="#E3EEFB"> with a <tr
bgcolor="#D0E3F8"> for each group; a group having the same firstname and
same surname.  eg.  2 rows of Adam Awad will have #E3EEFB; the 2 rows of
Adam Hutchinson will have #D0E3F8; then the next group will have #E3##FB
and so on.
Note that the number of rows per group is not constant.

I've solved this using SQL to generate a count attribute = either 0 or 1
per group.  XSLT then chooses a color based on that attribute.

However, I'm not happy with that solution because this count attribute is
not data; it's a fudge to achieve a certain presentation look.

I've read about the Muenchian method of grouping but the examples are all
about outputting something different when the group changes but not
continuing it on per entity of the group.

How would you guys do it?

Jonathan
Here's the xml, xslt and output of the current kludgey solution.

   <rs:data>
      <z:row FirstName='Adam' Surname='Awad' CurrentCountryName=''
            CurrentCityName='' CompanyName='AMP' CurrentEmailaddress
   ='Adam_Awad@xxxxxxxxxx'
            CurrentPhoneNumber='9257 3002' Count='1'/>
      <z:row FirstName='Adam' Surname='Awad' CompanyName='Compliance'
            CurrentEmailaddress='adam_awad@xxxxxxxxxx' CurrentPhoneNumber
   ='02 9257 5456'
            Count='1'/>
      <z:row FirstName='Adam' Surname='Hutchinson' CurrentCountryName=''
            CurrentCityName='' CompanyName='AMP' CurrentEmailaddress
   ='Adam_Hutchinson@xxxxxxxxxx'
            CurrentPhoneNumber='61-2-9257 5427' Count='0'/>
      <z:row FirstName='Adam' Surname='Hutchinson' CurrentCountryName=''
            CurrentCityName='' CompanyName='' CurrentEmailaddress
   ='Adam_Hutchinson@xxxxxxxxxx'
            CurrentPhoneNumber='813-5575-5400' Count='0'/>
      <z:row FirstName='Adam' Surname='Ryan' CurrentCountryName=''
            CurrentCityName='' CompanyName='AMPBanking' CurrentEmailaddress
   ='Adam_Ryan@xxxxxxxxxxxxxxxxx'
            CurrentPhoneNumber='0412 00 00 67' Count='1'/>
      <z:row FirstName='Adam' Surname='Ryan' CurrentCountryName=''
            CurrentCityName='' CompanyName='NPI' CurrentEmailaddress
   ='Adam_Ryan@xxxxxxxxxx'
            CurrentPhoneNumber='' Count='1'/>
   </rs:data>

ie. the xml is sorted on firstname and surname.  Note the "Count" attribute
flip flops between "0" and "1" when firstname and surname change.

The following XSL

    <xsl:for-each select="xml/rs:data/z:row">
       <xsl:choose>
      <xsl:when test="@Count=1">
           <tr bgcolor="#E3EEFB">
           <td><font class="FontBlack"><xsl:value-of select="@FirstName"
/></font></td>
           <td><font class="FontBlack"><xsl:value-of select="@Surname"
/></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentCityName" /></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentCountryName" /></font></td>
           <td><font class="FontBlack"><xsl:value-of select="@CompanyName"
/></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentEmailaddress" /></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentPhoneNumber" /></font></td>
           </tr>
         </xsl:when>
         <xsl:otherwise>
           <tr bgcolor="#D0E3F8">
           <td><font class="FontBlack"><xsl:value-of select="@FirstName"
/></font></td>
           <td><font class="FontBlack"><xsl:value-of select="@Surname"
/></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentCityName" /></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentCountryName" /></font></td>
           <td><font class="FontBlack"><xsl:value-of select="@CompanyName"
/></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentEmailaddress" /></font></td>
           <td><font class="FontBlack"><xsl:value-of select="
@CurrentPhoneNumber" /></font></td>
           </tr>
         </xsl:otherwise>
       </xsl:choose>
    </xsl:for-each>

produces

<tr bgcolor="#E3EEFB">
<td><font class="FontBlack">Adam</font></td>
<td><font class="FontBlack">Awad</font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack">AMP</font></td>
<td><font class="FontBlack">Adam_Awad@xxxxxxxxxx</font></td>
<td><font class="FontBlack">9257 3002</font></td>
</tr>
<tr bgcolor="#E3EEFB">
<td><font class="FontBlack">Adam</font></td>
<td><font class="FontBlack">Awad</font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack">Compliance</font></td>
<td><font class="FontBlack">adam_awad@xxxxxxxxxx</font></td>
<td><font class="FontBlack">02 9257 5456</font></td>
</tr>
<tr bgcolor="#D0E3F8">
<td><font class="FontBlack">Adam</font></td>
<td><font class="FontBlack">Hutchinson</font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack">AMP</font></td>
<td><font class="FontBlack">Adam_Hutchinson@xxxxxxxxxx</font></td>
<td><font class="FontBlack">61-2-9257 5427</font></td>
</tr>
<tr bgcolor="#D0E3F8">
<td><font class="FontBlack">Adam</font></td>
<td><font class="FontBlack">Hutchinson</font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack">Adam_Hutchinson@xxxxxxxxxx</font></td>
<td><font class="FontBlack">813-5575-5400</font></td>
</tr>
<tr bgcolor="#E3EEFB">
<td><font class="FontBlack">Adam</font></td>
<td><font class="FontBlack">Ryan</font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack">AMPBanking</font></td>
<td><font class="FontBlack">Adam_Ryan@xxxxxxxxxxxxxxxxx</font></td>
<td><font class="FontBlack">0412 00 00 67</font></td>
</tr>
<tr bgcolor="#E3EEFB">
<td><font class="FontBlack">Adam</font></td>
<td><font class="FontBlack">Ryan</font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack"></font></td>
<td><font class="FontBlack">NPI</font></td>
<td><font class="FontBlack">Adam_Ryan@xxxxxxxxxx</font></td>
<td><font class="FontBlack"></font></td>
</tr>





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