how to specify row in datatable

hi,

DataReader object provides a read only, forward only, high performance mechanism to retrieve data from a data store, so i think you cannot move data from datatable to datareader.

to move datarow form one table to other table

var logEntries = new DataTable()
//Fill logEntries data table
...
...

// Move Row from logEntries to datatable.

var dataTable = new DataTable();
dataTable.Columns.Add("EntryType");
dataTable.Columns.Add("TimeGenerated");
dataTable.Columns.Add("Message");
dataTable.Columns.Add("Category");
for (int loop = logEntries.Count - 1; loop >= 0; loop--)
{
    var row = new[]
    {
        logEntries[loop].EntryType.ToString(),
        logEntries[loop].TimeGenerated.ToString(),
        logEntries[loop].Message,
        logEntries[loop].Category
    };
    dataTable.Rows.Add(row);
}

please refer
http://support.microsoft.com/default.aspx?scid=kb;EN-US;Q308909

hope this will help you.