MainWindow.xaml

<Window x:Class="LockOnRowEdit_CodeBehind.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:LockOnRowEdit_CodeBehind"
        xmlns:dxg="http://schemas.devexpress.com/winfx/2008/xaml/grid"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <dxg:GridControl x:Name="grid" AutoGenerateColumns="AddNew">
            <dxg:GridControl.View>
                <dxg:TableView x:Name="view" EditFormShowMode="Inline" RowEditStarted="OnRowEditStarted" RowEditFinished="OnRowEditFinished"/>
            </dxg:GridControl.View>
        </dxg:GridControl>
    </Grid>
</Window>