How to Split one datatable to many datatables?

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Hi !! Have a good day

I have a question, please help me !
I want to split a datatable into many datatables, how to do that by c#.net.
Example : datatable is: DA has 250 rows ==> split into 3 datatable : DA1 (100rows) , DA2(100 rows), DA3(50rows)
If datatable DA has 1000 rows, ==> split into 10 datatables, ( thats mean one datatable have less than 100rows)

Thanks for your help!

Posted 11-Aug-09 21:58pm

NguyenDzung

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*dan!sh* · Accepted Answer · 2009-08-11T22:14:00

Solution 1

You will have to loop through the rows and copy them into a new datatable. You can also use DataTable.Select method as well instead of looping through all the rows.

Posted 11-Aug-09 22:14pm

dan!sh

Pete O'Hanlon · Accepted Answer · 2009-08-11T22:36:00

The simplest way would be to write a loop that iterated over the DataTable and allocate rows accordingly. When you do this, you need to clone the table structure, and use ImportRow to copy the row from one table to another. If you attempt to copy the row over directly, you'll get a "row belongs to another table" error. The following method does what you want:

private List<DataTable> CloneTable(DataTable tableToClone, int countLimit)<br />{<br />    List<DataTable> tables = new List<DataTable>();<br />    int count = 0;<br />    DataTable copyTable = null;<br />    foreach (DataRow dr in tableToClone.Rows)<br />    {<br />        if ((count++ % countLimit) == 0)<br />        {<br />            copyTable = new DataTable();<br />            // Clone the structure of the table.<br />            copyTable = tableToClone.Clone();<br />            // Add the new DataTable to the list.<br />            tables.Add(copyTable);<br />        }<br />        // Import the current row.<br />        copyTable.ImportRow(dr);<br />    }<br />    return tables;<br />}