Need help on datagridview column sorting

I am trying to read a xml data into datagridview and want to sort the first column in ASC order.

$ds=New-ObjectSystem.Data.Dataset
$dataGridView=New-ObjectSystem.Windows.Forms.DataGridview
$ConfigXMLFile="D:\test.xml"
$ds.ReadXml($ConfigXMLFile)
$dataGridView.DataSource=$ds.Tables[0].DefaultView
$dataGridView.Sort($dataGridView.Columns[0],'ASC')

Output of the above script is as follows

sequence   Name
     1           SSS
     10         YYYY
     2           aaaa
     3           bbbb

But I want to sort the above result as below

sequence   Name
     1           SSS
     2           aaaa
     3           bbbb 
     10         YYYY

Thanks in advance.