Help - use XSLT to group by multiple values?

[n.phelge]

I'm using XSLT and .NET Framework 1.1 to try to transform XML to group
by multiple values, and I'm not succeeding. I have source XML that
looks like the following:

<Data>
<Flavor>
<Name>Vanilla</Name>
<StartDate>20070704</StartDate>
<EndDate>20071231</EndDate>
</Flavor>
<Flavor>
<Name>Chocolate</Name>
<StartDate>20070704</StartDate>
<EndDate>20071131</EndDate>
</Flavor>
<Flavor>
<Name>Strawberry</Name>
<StartDate>20070804</StartDate>
<EndDate>20071131</EndDate>
</Flavor>
<Flavor>
<Name>Mint</Name>
<StartDate>20070704</StartDate>
<EndDate>20071131</EndDate>
</Flavor>
</Data>


I need to group the items together that have the same values for
StartDate and EndDate such that the output looks like the following:

<Groups>
<Group>
<Name>Group1</Name>
<Flavors>
<Name>Vanilla</Name>
</Flavors>
<StartDate>20070704</StartDate>
<EndDate>20071231</EndDate>
</Group>
<Group>
<Name>Group2</Name>
<Flavors>
<Name>Chocolate</Name>
<Name>Mint</Name>
</Flavors>
<StartDate>20070704</StartDate>
<EndDate>20071131</EndDate>
</Group>
<Group>
<Name>Group3</Name>
<Flavors>
<Name>Strawberry</Name>
</Flavors>
<StartDate>20070804</StartDate>
<EndDate>20071231</EndDate>
</Group2>
</Groups>

I've tried to use the Muenchian Method with keys, but I haven't been
successful. Can anyone please provide some assistance?

Thanks in advance

 

[Pavel Lepin]

I need to group the items together that have the same
values for StartDate and EndDate such that the output
looks like the following:
[...]

I've tried to use the Muenchian Method with keys, but I
haven't been successful. Can anyone please provide some
assistance?

You know of the Muenchian grouping, but you 'haven't been
successful', you didn't post any code, and you
want 'assistance'? Do you want someone to write the code
for you? This an entry-level grouping problem, do your own
homework.