How to remove row in dataset and apply the deleting in the XML file?

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ASP.NET

XML

I tried to convert the dataset to DataTable and DataView, but it wasn't helpful

I think this code must apply the deleting:

string id = GV.SelectedRow.Cells[1].Text.ToString();

         using (DataSet dsStudentsSystem = new DataSet())
       {
        dsStudentsSystem.ReadXml(Server.MapPath("~/StudentsSystem.xml"));

 for (int counter = 0; counter < dsStudentsSystem.Tables["Students"].Rows.Count; counter++)
               {
                   if (dsStudentsSystem.Tables["Students"].Rows[counter]["ID"]==id)
                   {
                       dsStudentsSystem.Tables["Students"].Rows[counter].Delete();

                       dsStudentsSystem.AcceptChanges();

                   }
               }
 dsStudentsSystem.WriteXml(Server.MapPath("~/StudentsSystem.xml"));
               GV.DataBind();

But it's do nothing!