MainWindow.xaml

<Window x:Class="UndoOperation.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:UndoOperation"
        xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
        xmlns:dxb="http://schemas.devexpress.com/winfx/2008/xaml/bars"
        xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"
        xmlns:dx="http://schemas.devexpress.com/winfx/2008/xaml/core"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <dxb:ToolBarControl>
            <dxb:BarButtonItem Content="Refresh (F5)" Command="{Binding View.Commands.RefreshDataSource, ElementName=grid}" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Refresh.svg}" BarItemDisplayMode="ContentAndGlyph" />
            <dxb:BarButtonItem Content="Edit (F2)" Command="{Binding View.Commands.EditFocusedRow, ElementName=grid}" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Edit.svg}" BarItemDisplayMode="ContentAndGlyph" />
            <dxb:BarButtonItem Content="New" Command="{Binding View.Commands.AddNewRow, ElementName=grid}" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Add.svg}" BarItemDisplayMode="ContentAndGlyph" />
            <dxb:BarButtonItem Content="Delete (Del)" Command="{Binding View.Commands.DeleteFocusedRow, ElementName=grid}" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Delete.svg}" BarItemDisplayMode="ContentAndGlyph" />
            <dxb:BarButtonItem Content="Undo (Ctrl+Z)" Command="{Binding UndoCommand, ElementName=undoBehavior}" Glyph="{dx:DXImage SvgImages/Icon Builder/Actions_Undo.svg}" BarItemDisplayMode="ContentAndGlyph" />
        </dxb:ToolBarControl>
        <dxg:GridControl x:Name="grid" ItemsSource="{Binding ItemsSource}" RestoreStateKeyFieldName="Id" RestoreStateOnSourceChange="True" Grid.Row="1">
            <dxg:GridControl.View>
                <dxg:TableView NewItemRowPosition="Top"
                               ShowUpdateRowButtons="OnCellEditorOpen"
                               ValidateRowCommand="{Binding ValidateRowCommand}"
                               ValidateRowDeletionCommand="{Binding ValidateRowDeletionCommand}"
                               DataSourceRefreshCommand="{Binding DataSourceRefreshCommand}"
                               ShowFixedTotalSummary="True">
                    <dxmvvm:Interaction.Behaviors>
                        <local:UndoCRUDOperationsBehavior x:Name="undoBehavior" CopyOperationsSupporter="{Binding CopyOperationsSupporter}" />
                    </dxmvvm:Interaction.Behaviors>
                </dxg:TableView>
            </dxg:GridControl.View>
            <dxg:GridColumn FieldName="Id" IsSmart="True" ReadOnly="True" />
            <dxg:GridColumn FieldName="FirstName" IsSmart="True" />
            <dxg:GridColumn FieldName="LastName" IsSmart="True" />
            <dxg:GridControl.InputBindings>
                <KeyBinding Command="{Binding View.Commands.DeleteFocusedRow, ElementName=grid}" Key="Delete" />
                <KeyBinding Command="{Binding UndoCommand, ElementName=undoBehavior}" Key="Z" Modifiers="Ctrl" />
            </dxg:GridControl.InputBindings>
            <dxg:GridControl.TotalSummary>
                <dxg:GridSummaryItem SummaryType="Count" Alignment="Right" />
            </dxg:GridControl.TotalSummary>
        </dxg:GridControl>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition />
        </Grid.RowDefinitions>
    </Grid>
    <Window.DataContext>
        <local:MainViewModel />
    </Window.DataContext>
</Window>