C#

public static T MyMethod<T>(this string Myxml)
{
  XmlDocument Mydocument = new XmlDocument();
  using (XmlTextReader XmlTr = new XmlTextReader(new StringReader(Myxml)))
  {
    Mydocument.Load(XmlTr);
  }
  // How do I return the result ?
  return ???
}

private void button1_Click(object sender, EventArgs e) {
    using (XmlWriter Writer = XmlWriter.Create(Application.StartupPath + "\\Designs\\" + StyleName + ".xml", XmlSettings)) {
        Writer.WriteStartElement("Settings");
        PropertyDescriptorCollection PropertyCollection = TypeDescriptor.GetProperties(propertyGrid2.SelectedObject);
        foreach (PropertyDescriptor Prop in PropertyCollection) {
            Writer.WriteStartElement(Prop.Name);
            Writer.WriteString(Prop.GetValue(propertyGrid2.SelectedObject).ToString());
            Writer.WriteEndElement();
        }
    }
}

protected void SubmitButton_Click(object sender, EventArgs e)
           {

               const string Query = "IF NOT EXISTS (SELECT * FROM StaffTrackingFTEData) INSERT INTO StaffTrackingFTEData ([StaffTrackingID], [EstimateHours], [EstimateFTE], [ActualHours], [ActualFTE],[Comment], [CommentBy], [Period]) VALUES ((Select StaffTracking.ID From StaffTracking where StaffTracking.CATWResourceName = @Name), @Estimatehours, @EstimateFTE, @ActualHours, @ActualFTE, @Comment, @CommentBy, @Period)";
               SqlConnection conn = new SqlConnection(ConfigurationManager.ConnectionStrings["SQLStaffingConn"].ConnectionString);

               using (SqlCommand command = new SqlCommand(Query, conn))
               {
                   conn.Open();
                   command.Parameters.AddWithValue("@StaffTrackingID", SqlDbType.Int).Direction = ParameterDirection.Output;
                   foreach (GridViewRow row in gvCATW.Rows)
                   {


                       command.Parameters.AddWithValue("@Name", ((TextBox)row.FindControl("txtName")).Text);
                       command.Parameters.AddWithValue("@EstimateHours", ((TextBox)row.FindControl("txtEstimateHours")).Text);
                       command.Parameters.AddWithValue("@EstimateFTE", ((TextBox)row.FindControl("txtEstimateFTE")).Text);
                       command.Parameters.AddWithValue("@ActualHours", ((TextBox)row.FindControl("txtHours")).Text);
                       command.Parameters.AddWithValue("@ActualFTE", ((Label)row.FindControl("Label1")).Text);
                       command.Parameters.AddWithValue("@Comment", ((TextBox)row.FindControl("txtComment")).Text);
                       command.Parameters.AddWithValue("@CommentBy", ((TextBox)row.FindControl("txtCommentBy")).Text);
                       command.Parameters.AddWithValue("@Period", ((TextBox)row.FindControl("txtPeriod")).Text);


                       command.ExecuteNonQuery();
                       command.Parameters.Clear();
                   }
               }

           }

   //protected void SubmitButton_Click(object sender, EventArgs e)