unable to cast object of type 'system.data.datatable' to type 'system.data.dataset'

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1.00/5 (2 votes)

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C#

Session[StringConstants.DTRefTransactions] = dsRefTransactions.Tables[0];

getting error as unable to cast object of type 'system.data.datatable' to type 'system.data.dataset' on above line of code . how to type cast it?

Posted 8-Nov-11 3:02am

durgeshtupkar10

Updated 8-Nov-11 3:04am

jim lahey

v2

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Sergey Alexandrovich Kryukov 8-Nov-11 11:13am

Can you read the error message?
Why do you think you want to cast it?
--SA

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Abhinav S · Answer 1 · 2011-11-08T03:04:00

Solution 1

You cannot. A DataTable is not a DataSet.

Posted 8-Nov-11 3:04am

Abhinav S

Comments

durgeshtupkar10 8-Nov-11 9:10am

what solution then?

Sergey Alexandrovich Kryukov 8-Nov-11 11:13am

Enough said, a 5.
--SA

Abhinav S 8-Nov-11 11:24am

Thanks SA.

jim lahey · Answer 2 · 2011-11-08T03:10:00

Solution 2

You can't cast a DataTable to a DataSet. It sounds like your code is expecting a DataSet so you could try:

C#

Session[StringConstants.DTRefTransactions] = dsRefTransactions;

Posted 8-Nov-11 3:10am

jim lahey

Comments

durgeshtupkar10 8-Nov-11 9:17am

but on following ur above suggestion it works but i want oth index datatable from that datasetparticular

jim lahey 8-Nov-11 9:19am

You've got the whole dataset in session. You can read it back out of session and do: dsRefTransactions.Tables[0]

Sergey Alexandrovich Kryukov 8-Nov-11 11:14am

No ifs no buts.
--SA

Sergey Alexandrovich Kryukov 8-Nov-11 11:15am

Sure, a 5. OP cannot apply simple logic.
--SA