I'm doing multicolumn grid with subcolumns (source inside). But something goes wrong

[weyland]

I have xml:

<source>
	<row>
		<family>Expe</family>
		<name>rium</name>
		<kat>
			<id>1</id>
			<company>Mampf</company>
			<date>17.1.2010</date>
		</kat>
		<kat>...</kat>
	</row>
	<row>
		...
		<kat>
			<id>...</id>
			<company>...</company>
			<date>...</date>
		</kat>
		<kat>...</kat>
		<kat>...</kat>
	</row>
</source>

So I want to make table with 'family', 'name', and 'kat' colums. Column Kat has 'id', 'company' and 'date' subcolumns.
Working code is below.
What's wrong: in the first line I have full table in the third column. In the second line I have the same data in the third column.
How to address to the concrete <row> when reading <kat>? How to correct my xaml code?

And formatting, but it is easy quastion. I think I will resolve it myself.
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