MainPage.xaml

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:dx="http://schemas.devexpress.com/maui"
             xmlns:local="clr-namespace:EditFormTemplate"
             xmlns:ios="clr-namespace:Microsoft.Maui.Controls.PlatformConfiguration.iOSSpecific;assembly=Microsoft.Maui.Controls"
             ios:Page.UseSafeArea="true"
             x:Class="EditFormTemplate.MainPage">
    <ContentPage.BindingContext>
        <local:EmployeeDataViewModel/>
    </ContentPage.BindingContext>

    <ContentPage.Resources>
        <DataTemplate x:Key="CustomEditFormContent">
            <ScrollView>
                <Grid>
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto" />
                    </Grid.RowDefinitions>
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="Auto" />
                        <ColumnDefinition Width="*" />
                    </Grid.ColumnDefinitions>
                    <Image Source="{Binding Path=Item.Photo}" Grid.Row="0" Grid.Column="0"/>
                    <dx:DXStackLayout Orientation="Vertical" Padding="50, 20, 0, 0" 
                                 Grid.Row="0" Grid.Column="1">
                        <Label Text="{Binding Path=Item.Name}"  VerticalOptions="Start"
                               FontSize="20" FontAttributes="Bold" />
                        <dx:DXStackLayout Orientation="Horizontal">
                            <Label Text="Phone:"  FontSize="14" WidthRequest="100"
                                   HorizontalOptions="Start" VerticalOptions="Center" />
                            <Editor Text="{Binding Path=Item.Phone, Mode=TwoWay}" 
                                    FontSize="Small" HorizontalOptions="FillAndExpand"/>
                        </dx:DXStackLayout>
                        <dx:DXStackLayout Orientation="Horizontal">
                            <Label Text="Address:"  FontSize="14" WidthRequest="100"
                                   HorizontalOptions="Start" VerticalOptions="Center" />
                            <Editor Text="{Binding Path=Item.Address, Mode=TwoWay}" 
                                    FontSize="Small" HorizontalOptions="FillAndExpand"/>
                        </dx:DXStackLayout>
                    </dx:DXStackLayout>
                </Grid>
            </ScrollView>
        </DataTemplate>
    </ContentPage.Resources>
    <dx:DataGridView x:Name="grid" ItemsSource="{Binding Employees}" 
                      RowDoubleTapCommand="{Binding Source={RelativeSource Mode=Self}, Path=Commands.ShowDetailEditForm}"
                      DetailEditFormTemplate="{x:StaticResource CustomEditFormContent}">
        <dx:DataGridView.Columns>
            <dx:ImageColumn FieldName="Photo"  
                             Width="100" VerticalContentAlignment="Center"/>
            <dx:TemplateColumn FieldName="Name" Caption="Employee" 
                                IsReadOnly="true" AllowSort="False" MinWidth="200">
                <dx:TemplateColumn.DisplayTemplate>
                    <DataTemplate>
                        <Grid VerticalOptions="Center" Padding="15, 0, 0, 0">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto" />
                                <RowDefinition Height="Auto" />
                                <RowDefinition Height="Auto" />
                            </Grid.RowDefinitions>
                            <Label Text="{Binding Item.Name}" FontAttributes="Bold" FontSize="Medium" Grid.Row="0" />
                            <Label Text="{Binding Item.Position, StringFormat = 'Job Title: {0}'}"
                                   FontSize="Small" Grid.Row="1"/>
                            <Label Text="{Binding Item.HireDate, StringFormat = 'Hire Date: {0:d}'}" 
                                   FontSize="Small" Grid.Row="2" />
                        </Grid>
                    </DataTemplate>
                </dx:TemplateColumn.DisplayTemplate>
            </dx:TemplateColumn>
            <dx:TextColumn FieldName="Phone" 
                            MinWidth="130" VerticalContentAlignment="Center" />
            <dx:TextColumn FieldName="Address" 
                            MinWidth="150" VerticalContentAlignment="Center" />
            <dx:DateColumn FieldName="BirthDate" 
                            MinWidth="120" DisplayFormat="d" VerticalContentAlignment="Center"/>
            <dx:PickerColumn FieldName="Access" Caption="Access Level" 
                              MinWidth="140" VerticalContentAlignment="Center"/>
            <dx:CheckBoxColumn FieldName="OnVacation" 
                                MinWidth="130" VerticalContentAlignment="Center"/>
        </dx:DataGridView.Columns>
    </dx:DataGridView>
</ContentPage>