I want to group , ungroup canvas user control in wpf application.Though this can be achieved with microsoft visual studio in built function Group and Ungroup which we get from Object and Timeline window.Through ungrouping we are removing unwanted canvas and making only one parent(canvas) to child controls.
Phis i need to achieve programmatically.Please suggest how can I achieve this through programmatically though I want to process my xaml file without doing this manual step and handle it through code behind.

Below mentioned is code snippet of xaml data which is not yet grouped and after that grouping.

Code before ungrouping :

<Canvas Name="_01" RenderTransform="1, 0, 0, 1, 130.919685, -4.32">
          <Canvas Name="_64" RenderTransform="-0.999991, 0.004316, -0.004316, -0.999991, 14.637921, 2145.991988">
            <Path Name="_64_G0__MrkrEnd" Visibility="Collapsed" RenderTransform="3.31258, -1.721798, -1.721798, -3.31258, 5.998991, 1066.51392" StrokeLineJoin="Round" Data="M -1 -1 L 0 0 L 1 -1 ">
            </Path>
          </Canvas>
 </Canvas>
     
 Code after Ungrouping and grouping into a canvas, which allow a single parent node to the child.

 <Canvas Name="_01" RenderTransform="1, 0, 0, 1, 130.919685, -4.32">
        	<Path x:Name="_64_G0__MrkrEnd" Visibility="Collapsed" StrokeLineJoin="Round" Data="M -1 -1 L 0 0 L 1 -1 " Canvas.Left="14.637" RenderTransformOrigin="0.5,0.5" Canvas.Top="2145.992"/>
        </Canvas>

[OpcItem("Simulate")]
public Boolean Simulate
{
    get { return _simulate; }
    set
    {
        _simulate = value;
        SetValueToPlc(MethodBase.GetCurrentMethod().MethodHandle, value);
        RaisePropertyChanged();
    }
}

<FixedDocument  
   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xml:lang="en-au">
   <FixedDocument.Resources>
      <BooleanToVisibilityConverter x:Key="visConverter"/>
   </FixedDocument.Resources>
   <PageContent>
      <FixedPage Width="793.76" Height="1122.56">
         <!-- Page 1 Begins Here -->
         <StackPanel Margin="50">
            <Border BorderThickness="5" BorderBrush="Gray" CornerRadius="10"
               Padding="20" Width="690">
               <StackPanel Orientation="Horizontal" Margin="0 0 0 0">
                  <Image Source="truck.jpg" HorizontalAlignment="Left"/>
                  <TextBlock Margin="30 0 0 0" FontSize="50"
                     Text="{Binding Path=Heading}" VerticalAlignment="Center"/>
               </StackPanel>
            </Border>
            <TextBlock Margin="0 30 0 0"
               Text="{Binding Path=CurrentDate, StringFormat='{}{0:d MMMM yyyy}'}"/>
            <TextBlock Margin="0 30 0 0"
               Text="{Binding Path=Name, StringFormat='Dear {0},'}" />
            <ItemsControl Margin="30 20 0 0" ItemsSource="{Binding Path=DotPoints}"
               HorizontalAlignment="Left">
               <ItemsControl.ItemTemplate>
                  <DataTemplate>
                     <StackPanel Margin="0,8,0,0" Orientation="Horizontal" >
                        <TextBlock Text="• " />
                        <TextBlock Text="{Binding}" TextWrapping="Wrap" Width="400"/>
                     </StackPanel>
                  </DataTemplate>
               </ItemsControl.ItemTemplate>
            </ItemsControl>
            <TextBlock Margin="0 30 0 0"
               Text="Congratulations, you are entitled to a 50% discount!"
               Visibility="{Binding Path=GiveDiscount,
                                        Converter={StaticResource visConverter}}"/>
         </StackPanel>
      </FixedPage>
   </PageContent>
   <PageContent>
      <FixedPage Width="793.76" Height="1122.56">
         <!-- Page 2 Begins Here -->
         <TextBlock Margin="50" Text="Nothing to see here."/>
      </FixedPage>
   </PageContent>
</FixedDocument> 

<Window
    x:Class="ODIN.DataSheetFixedDocument"
    WindowStartupLocation="CenterScreen"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:v="clr-namespace:ODIN.View"
    xmlns:local="clr-namespace:ODIN"    
    local:WindowCustomizer.CanMaximize="False"
    local:WindowCustomizer.CanMinimize="False"
    Title="Administrated Master View"
    Width="1024"
    Height="768"
    >
    <Grid Name="MainGrid">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="97*" />
        </Grid.ColumnDefinitions>
        <Grid.RowDefinitions>
            <RowDefinition Height="115*"  />
        </Grid.RowDefinitions>

        <FixedPage Width="1024" Height="768" x:Name="theFixedPage">
            <StackPanel Background="Green" Width="200" Height="30" HorizontalAlignment="Left" Margin="0,100,0,0" Grid.Column="0" Grid.Row="0">
                <TextBlock Width="465" HorizontalAlignment="Left" Height="92" Foreground="Black" Margin="0,0,-265,0">Hello</TextBlock>
            </StackPanel>
        </FixedPage>
        <DocumentViewer>
            <FixedDocument x:Name="uiFixedDocument">

            </FixedDocument>
        </DocumentViewer>
    </Grid>
</Window>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace ODIN
{
    /// <summary>
    /// Interaction logic for DataSheetFixedDocument.xaml
    /// </summary>
    public partial class DataSheetFixedDocument : Window
    {
        public DataSheetFixedDocument()
        {
            InitializeComponent();

            Grid grid = new Grid();
            grid = (Grid)this.theFixedPage.Parent;
            grid.Children.Remove(this.theFixedPage);
            PageContent pageContent = new PageContent();
            pageContent.Child = theFixedPage;
            FixedDocument.Pages.Add(pageContent);
            uiFixedDocument.Pages.Add(pageContent);
            // Below is where I get the not able to convert
            // FixedPage to an UIElement.
            grid.Children.Add((UIElement) uiFixedDocument);
        }
    }
}

PLATFORM VERSION INFO
    Windows             : 6.1.7601.65536 (Win32NT)
    Common Language Runtime     : 4.0.30319.42000
    System.Deployment.dll       : 4.6.118.0 built by: NETFXREL3STAGE
    clr.dll             : 4.6.1076.0 built by: NETFXREL3STAGE
    dfdll.dll           : 4.6.118.0 built by: NETFXREL3STAGE
    dfshim.dll          : 4.0.41209.0 (Main.041209-0000)

SOURCES
    Deployment url          : <a href="http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.xbap">http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.xbap</a>
    Application url         : <a href="http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.exe.manifest">http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.exe.manifest</a>

IDENTITIES
    Deployment Identity     : WpfBrowserApplication12015.xbap, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c836e075e9e59aa1, processorArchitecture=msil
    Application Identity        : WpfBrowserApplication12015.exe, Version=1.0.0.0, Culture=neutral, PublicKeyToken=c836e075e9e59aa1, processorArchitecture=msil, type=win32

APPLICATION SUMMARY
    * Online only application.
    * Browser-hosted application.

ERROR SUMMARY
    Below is a summary of the errors, details of these errors are listed later in the log.
    * An exception occurred while downloading the application. Following failure messages were detected:
        + Downloading <a href="http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.exe.deploy">http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.exe.deploy</a> did not succeed.
        + The remote server returned an error: (404) Not Found.

COMPONENT STORE TRANSACTION FAILURE SUMMARY
    No transaction error was detected.

WARNINGS
    There were no warnings during this operation.

OPERATION PROGRESS STATUS
    No phase information is available.

ERROR DETAILS
    Following errors were detected during this operation.
    * [9/18/2016 8:02:15 PM] System.Deployment.Application.DeploymentDownloadException (Unknown subtype)
        - Downloading <a href="http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.exe.deploy">http://localhost/WPFBrowserApplication/WpfBrowserApplication12015.exe.deploy</a> did not succeed.
        - Source: System.Deployment
        - Stack trace:
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)
            at System.Deployment.Application.SystemNetDownloader.DownloadAllFiles()
            at System.Deployment.Application.FileDownloader.Download(SubscriptionState subState)
            at System.Deployment.Application.DownloadManager.DownloadDependencies(SubscriptionState subState, AssemblyManifest deployManifest, AssemblyManifest appManifest, Uri sourceUriBase, String targetDirectory, String group, IDownloadNotification notification, DownloadOptions options)
            at System.Deployment.Application.DeploymentManager.SynchronizeCore(Boolean blocking)
            at System.Deployment.Application.DeploymentManager.SynchronizeAsyncWorker()
        - Inner Exception -
        System.Net.WebException
        - The remote server returned an error: (404) Not Found.
        - Source: System
        - Stack trace:
            at System.Net.HttpWebRequest.GetResponse()
            at System.Deployment.Application.SystemNetDownloader.DownloadSingleFile(DownloadQueueItem next)

COMPONENT STORE TRANSACTION DETAILS
    No transaction information is available.