How can I transform a DataTable in a group-by date DataTable with LINQ?

Posted by alex on Stack Overflow See other posts from Stack Overflow or by alex
Published on 2010-03-24T09:50:46Z Indexed on 2010/03/24 9:53 UTC
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LINQ

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.NET

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datatable

I have a untyped DataTable that looks like this (srcTbl):

date            col_1   col_2 ...  col_n
1.3.2010 00:00  12.5    0     ...  100 
1.3.2010 01:00  0       0     ...  100 
1.3.2010 22:00  0       0     ...  100 
1.3.2010 23:00  12.5    0     ...  100 
...
31.3.2010 00:00 2       0     ...  100
31.3.2010 01:00 2       0     ...  200

I need to sum up the rows grouped by dates to get a DataTable like that (dstTbl):

date,           col_1   col_2 ...  col_n
1.3.2010        15      0     ...  400
...
31.3.2010       4       0     ...  300

Is this possible by using LINQ and if then how?

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