[C#/WPF] FocusManager 클래스 : SetFocusedElement 정적 메소드를 사용해 논리적 포커스 설정하기

■ FocusManager 클래스의 SetFocusedElement 정적 메소드를 사용해 논리적 포커스를 설정하는 방법을 보여준다.

▶ TestWindow.xaml


<Window x:Class="TestProject.TestWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="600"
    Height="450"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid>
        <StackPanel
            HorizontalAlignment="Center"
            VerticalAlignment="Center">
            <TextBox Name="textBox1"
                Width="200"
                Height="25"
                VerticalContentAlignment="Center" />
            <TextBox Name="textBox2"
                Margin="0 10 0 0"
                Width="200"
                Height="25"
                VerticalContentAlignment="Center" />
        </StackPanel>
    </Grid>
</Window>

<Window x:Class="TestProject.TestWindow"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

Width="600"

Height="450"

FontFamily="나눔고딕코딩"

FontSize="16">

<Grid>

<StackPanel

HorizontalAlignment="Center"

VerticalAlignment="Center">

<TextBox Name="textBox1"

Width="200"

Height="25"

VerticalContentAlignment="Center" />

<TextBox Name="textBox2"

Margin="0 10 0 0"

Width="200"

Height="25"

VerticalContentAlignment="Center" />

</StackPanel>

</Grid>

</Window>

▶ MainWindow.xaml.cs


using System.Windows;
using System.Windows.Input;

namespace TestProject
{
    /// <summary>
    /// 메인 윈도우
    /// </summary>
    public partial class MainWindow : Window
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainWindow()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainWindow()
        {
            InitializeComponent();

            Loaded += Window_Loaded;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 윈도우 로드시 처리하기 - Window_Loaded(sender, e)

        /// <summary>
        /// 윈도우 로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            TestWindow window1 = new TestWindow();

            window1.Owner = this;
            window1.Title = "테스트 윈도우 1";

            DependencyObject focusScope1 = FocusManager.GetFocusScope(window1.textBox1);

            FocusManager.SetFocusedElement(focusScope1, window1.textBox1);

            TestWindow window2 = new TestWindow();

            window2.Owner = this;
            window2.Title = "테스트 윈도우 2";

            DependencyObject focusScope2 = FocusManager.GetFocusScope(window2.textBox2);

            FocusManager.SetFocusedElement(focusScope2, window2.textBox2);

            window1.Show();

            window2.Show();
        }

        #endregion
    }
}

using System.Windows;

using System.Windows.Input;

namespace TestProject

{

/// <summary>

/// 메인 윈도우

/// </summary>

public partial class MainWindow : Window

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainWindow()

/// <summary>

/// 생성자

/// </summary>

public MainWindow()

{

InitializeComponent();

Loaded += Window_Loaded;

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

#region 윈도우 로드시 처리하기 - Window_Loaded(sender, e)

/// <summary>

/// 윈도우 로드시 처리하기

/// </summary>

/// <param name="sender">이벤트 발생자</param>

/// <param name="e">이벤트 인자</param>

private void Window_Loaded(object sender, RoutedEventArgs e)

{

TestWindow window1 = new TestWindow();

window1.Owner = this;

window1.Title = "테스트 윈도우 1";

DependencyObject focusScope1 = FocusManager.GetFocusScope(window1.textBox1);

FocusManager.SetFocusedElement(focusScope1, window1.textBox1);

TestWindow window2 = new TestWindow();

window2.Owner = this;

window2.Title = "테스트 윈도우 2";

DependencyObject focusScope2 = FocusManager.GetFocusScope(window2.textBox2);

FocusManager.SetFocusedElement(focusScope2, window2.textBox2);

window1.Show();

window2.Show();

}

#endregion

}

TestProject.zip