[C# WPF / MVVM] 데이터그리드 바인딩 (DataGrid Binding)

해당 포스트는 C# WPF .NET 6 기반, NuGet "CommunityToolkit.Mvvm"으로 작성되었습니다.

 

MainWidow.xaml

<Window x:Class="DataBinding.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:DataBinding"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
             <DataGrid                       
                    Margin="5"
                    AutoGenerateColumns="False"
                    CanUserAddRows="False"
                    FontSize="11"
                    IsReadOnly="False"
                    ItemsSource="{Binding DataGrid}">
                <DataGrid.Columns>
                    <DataGridTextColumn
                                    Binding="{Binding DataGrid_NO}"
                                    Header="No" />
                    <DataGridTextColumn
                                    Binding="{Binding DataGrid_Name}"
                                    Header="Name" />
                    <DataGridTextColumn
                                    Binding="{Binding DataGrid_ETC}"
                                    Header="ETC" />
            </DataGrid.Columns>
            </DataGrid>
        <Button Grid.Row="1" Content="버튼" Command="{Binding Btn_ButtonCommand}"/>
    </Grid>
</Window>

 

MainWindow.cs

using System.Windows;

namespace DataBinding
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = Main_Model.main_ViewModel;
        }
    }
}

 

Main_Model.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DataBinding
{
    public class Main_Model
    {
        public static Main_ViewModel main_ViewModel = new Main_ViewModel();
    }
}

 

DataGrid_Class.cs

   public class DataGrid_Class
    {
        public string DataGrid_NO { get; set; }
        public string DataGrid_Name { get; set; }
        public string DataGrid_ETC { get; set; }
    }

 

Main_ViewModel.cs

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Windows;
using System.Windows.Data;

namespace DataBinding
{
    public partial class Main_ViewModel : ObservableObject
    {
        public Main_ViewModel()
        {
            Main_Model.main_ViewModel = this;
            dataGrid = CollectionViewSource.GetDefaultView(datagrid_);
        }

        [ObservableProperty]
        private ICollectionView dataGrid;

        public ObservableCollection<DataGrid_Class> datagrid_ { get; set; } = new ObservableCollection<DataGrid_Class>();

        [RelayCommand]
        private void Btn_Button()
        {
            datagrid_.Add(new DataGrid_Class()
            {
                DataGrid_NO = "1",
                DataGrid_Name = "개발자",
                DataGrid_ETC = "n년차",
            });
        }
    }    
}

 

- 실행결과

 

버튼 3번 클릭시