The dataset "merge" method can do about 2 things from my experience.
1. If you have N number of different datatables, it can merge the N number
of tables into 1 (common) dataset.
2. If you have different ROWS, but the same table, you can merge the rows
together. Most times, the rows will be different.
3. A combo of 1 and 2.
If you try to merge rows and the rows have the same primary key, but you're
trying to merge columns of the same row, you'll have trouble.
Back to your question. You can't do what you're trying with a dataset. the
.select and .merge methods are very very basic.
You need to look at LINQ. Or you'll have to loop and do your logic if
you're in a pre 3.5 framework.
..
>I am trying to get my head around dataset merging but despite a little
>research I could still use a pointer (or ten). Basically I want to perform
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Neil Chambers - 29 May 2008 16:39 GMT
Aha!
the primary key property does the trick. When I merge now it does so based
on the PK and I get the exact inclusive results I am after!
Many, many thanks!
: n)
> The dataset "merge" method can do about 2 things from my experience.
>
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