How to implement the below code in add button update button and delete button in below code

<Window x:Class="Wpf1.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"
        mc:Ignorable="d"
        Title="MainWindow" 
        xmlns:local="clr-namespace:Wpf1"
        ResizeMode="NoResize"
        SizeToContent="WidthAndHeight"
        WindowStartupLocation="CenterScreen"
        Height="1000" Width="1100">


  <window.resources>
    <local:EnumBooleanConverter  x:Key="EnumBooleanConverter"/>
  

  <grid>
    <grid.columndefinitions>
      <ColumnDefinition Width="481*" />
      <ColumnDefinition Width="511*" />
    
    <Grid Height="421" Margin="12,12,0,0" Name="grid1" VerticalAlignment="Top" HorizontalAlignment="Left" Width="411">
      <grid.rowdefinitions>
        <RowDefinition Height="50*" />
        <RowDefinition Height="42*" />
        <RowDefinition Height="44*" />
        <RowDefinition Height="43*" />
        <RowDefinition Height="46*" />
        <RowDefinition Height="45*" />
        <RowDefinition Height="45*" />
        <RowDefinition Height="44*" />
        <RowDefinition Height="62*" />
      
      <grid.columndefinitions>
        <ColumnDefinition Width="104*" />
        <ColumnDefinition Width="307*" />
      

      

      <TextBox Height="23" HorizontalAlignment="Left" Margin="3,27,0,0" Name="NameTextBox" VerticalAlignment="Top" Width="211" Text="{Binding Name, Mode=TwoWay, UpdateSourceTrigger=LostFocus, ValidatesOnDataErrors=True, NotifyOnValidationError=True}" Grid.Column="1"/>

      

      <TextBox Height="23" HorizontalAlignment="Left" Margin="2,14,0,0" Name="FathernameTextBox" VerticalAlignment="Top" Width="211" Text="{Binding FatherName, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" Grid.Column="1" Grid.Row="1"/>

      

      <DatePicker Height="25" HorizontalAlignment="Left" Margin="3,19,0,0" Name="DOBDatePicker" VerticalAlignment="Top" Width="211" Text="{Binding DOB, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" Grid.Column="1" Grid.Row="2"/>

      

      <RadioButton Content="Male" Margin="3,27,0,0" Name="MaleRadioButton" IsChecked="{Binding Gender, Mode=TwoWay,UpdateSourceTrigger=LostFocus, Converter = {StaticResource EnumBooleanConverter}, ConverterParameter=Male}" Grid.Column="1" HorizontalAlignment="Left" Width="42" Grid.Row="3" />

      <RadioButton Content="Female" Height="16" HorizontalAlignment="Left" Margin="56,27,0,0" Name="FemaleRadioButton" VerticalAlignment="Top" IsChecked = "{Binding Gender, Mode=TwoWay, UpdateSourceTrigger=LostFocus, Converter={StaticResource EnumBooleanConverter}, ConverterParameter=Female}" Grid.Column="1" Grid.Row="3" />

      

      <ComboBox Height="23" HorizontalAlignment="Right" Margin="0,23,93,0" Name="StateComboBox" VerticalAlignment="Top" Width="211" Text="{Binding State, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" Grid.Row="4" Grid.Column="1">
        <ComboBoxItem Content="Gujarat"/>
        <ComboBoxItem Content="Rajesthan"/>
        <ComboBoxItem Content="dilhi"/>
      

      

      <ComboBox Height="23" HorizontalAlignment="Right" Margin="0,22,93,0" Name="DistrictComboBox" VerticalAlignment="Top" Width="211" Text="{Binding District, Mode=TwoWay,UpdateSourceTrigger=LostFocus}" Grid.Row="5" Grid.Column="1">
        <ComboBoxItem Content="X"/>
        <ComboBoxItem Content="Y"/>
        <ComboBoxItem Content="Z"/>
      

      

      

      

    
    <DataGrid AutoGenerateColumns="False" Height="200" HorizontalAlignment="Left" Margin="34,123,0,0" Name ="PersonDatagrid" VerticalAlignment="Top" Width="502"  Grid.Column="1">

      <datagrid.columns>
        <DataGridTextColumn Header="Name" Width="100" Binding="{Binding Name}"/>
        <DataGridTextColumn Header="Fathername" Width="100" Binding="{Binding FatherName}"/>
        <DataGridTextColumn Header="DOB" Width="70" Binding="{Binding DOB, StringFormat=dd/MM/yyyy}"/>
        <DataGridTextColumn Header="Gender" Width="50" Binding="{Binding Gender, Converter={StaticResource EnumBooleanConverter}}"/>
        <DataGridTextColumn Header="State" Width="80" Binding="{Binding State}"/>
        <DataGridTextColumn Header="District" Width="98" Binding="{Binding District}"/>

      
    
  
</Window

xaml.cs

 public class personalinfo
    {
        public string Name { get; set; }
        public Genders Gender { get; set; }

        public string State { get; set; }

        public string District { get; set; }

        public string DOB { get; set; }

        public string Fathername { get; set; }
    }

   public enum Genders
   {
       Male = 1,
       Female
   }
}

 public  class EnumBooleanConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            var ParameterString = parameter as string;
            if (ParameterString == null)
                return DependencyProperty.UnsetValue;

            if (Enum.IsDefined(value.GetType(), value) == false)
                return DependencyProperty.UnsetValue;

            object paramvalue = Enum.Parse(value.GetType(), ParameterString);
            return paramvalue.Equals(value);
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            var ParameterString = parameter as string;
            if (ParameterString == null)
                return DependencyProperty.UnsetValue;

            return Enum.Parse(targetType, ParameterString);
        }

    }

}


namespace Wpf1
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// 
    public partial class MainWindow : Window
    {

        public MainWindow()
        {
            InitializeComponent();

            PersonDatagrid.ItemsSource = new List<personalinfo> 
            
            { 
                new personalinfo {Name = "Mariya", Fathername = "shakti", DOB = "26/12/1992", Gender = Genders.Male, State = "Gujarat", District="Baroda" }  
            };
        }
            private void SaveButton_Click(object sender, RoutedEventArgs e)
            {
                //personalinfo.Add(new Button() {Content = $"Button {index++}"});
                Console.WriteLine(string.Format("You clicked on the {0}. button.", (sender as Button).Tag));
             }

            private void DeleteButton_Click(object sender, RoutedEventArgs e)
            {

            }

            private void RefreshButton_Click(object sender, RoutedEventArgs e)
            {

            } 
    }
}