Sum multi datatable in .net

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Hi all visitors
How can i sum multi datatables in dataset?
i have 1 dataset and in 1 dataset i have 4 datatables.
i want to sum each column of each datatable.
How can i do that?

Best Regards,

Posted 6-May-11 16:50pm

soeun tony

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Sandeep Mewara 6-May-11 23:26pm

It's simple looping through one table at a time and sum the rows. Tried it?

2 solutions

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Atmir · Answer 1 · 2011-05-07T03:24:00

Solution 2

dataset1.datatable1.sum("sum(colum1)",string.empty)
dataset1.datatable2.sum("sum(colum1)",string.empty)
dataset1.datatable3.sum("sum(colum1)",string.empty)
dataset1.datatable4.sum("sum(colum1)",string.empty)
try something like this!

Posted 7-May-11 3:24am

Atmir

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soeun tony 8-May-11 21:49pm

Thanks for your reply.
if do like this. it means that we have 4 results(1 for datatable1 result,2 for datatable2 result,3 for datatable3 result,4 for datatable4 resutl). but i want to get only one result and that result will sum all columns of each datatable.
Best Regards,

Atmir · Answer 2 · 2011-05-09T08:20:00

sumary in text box:

dim d1 as ineger
dim d2 as integer 
dim d3 as inrteger
dim d4 as integer

d1=dataset1.datatable1.sum("sum(colum1)",string.empty) 
d2=dataset1.datatable2.sum("su(colum1)",string.empty)
d3=dataset1.datatable3.sum("sum(colum1)",string.empty)
d4=dataset1.datatable4.sum("sum(colum1)",string.empty)

me.textbox1.text=d1+d2+d3+d4