Unable to cast object of type 'System.Data.DataTable' to type 'System.Data.DataSet'.

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.NET3.5

.NET

Helloo ,

Can anyone help me i got this issue ,how solve this

Posted 5-Feb-13 1:09am

Mamtha7

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gagan sawaliya 5-Feb-13 7:13am

post some code

2 solutions

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Pete O'Hanlon · Answer 1 · 2013-02-05T01:43:00

Solution 2

If you need to return a DataSet, and all you have is a DataTable, you can add the DataTable to a dummy DataSet and return that. Here's an example:

C#

public DataSet DoSomething()
{
  DataTable people = GetPeopleWhoMatchSomeCriteria();
  DataSet dummySet = new DataSet();
  dummySet.Tables.Add(people);
  return dummySet;
}

The alternative is to change the return type from DataSet to DataTable.

Posted 5-Feb-13 1:43am

Pete O'Hanlon

Comments

thatraja 5-Feb-13 13:59pm

5Hi Pete!

Pete O'Hanlon 5-Feb-13 14:08pm

How do mate? How are you doing?

thatraja 5-Feb-13 14:29pm

I'm OK, It's been long time, hope you're doing great. I come back here today....(I was inactive here)

Pete O'Hanlon 5-Feb-13 14:51pm

I'm fine thanks. Busy busy. Hope you're keeping well.

Sergey Alexandrovich Kryukov 5-Feb-13 23:53pm

Answered without repeating what the compiler already told to him :-), a 5.
—SA

scarletwitch1990 · Answer 2 · 2013-02-05T01:13:00

Solution 1

you can't cast a DataTable to DataSet.

Posted 5-Feb-13 1:13am

scarletwitch1990

Comments

Pete O'Hanlon 5-Feb-13 7:43am

That doesn't really help solve the issue though, does it? You're just telling him what the compiler already told him.

scarletwitch1990 5-Feb-13 23:12pm

actually, im completely new to Asp.Net...so my knowledge is limited....but thanks anyway for your solution.
No one told me the alternate method