첨부 실행 코드는 나눔고딕코딩 폰트를 사용합니다.
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■ LengthConverter 클래스의 ConvertFromString 메소드를 사용해 문자열에서 길이를 구하는 방법을 보여준다.

TestProject.zip
0.01MB

▶ MainWindow.xaml

<Window x:Class="TestProject.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Width="800"
    Height="600"
    Title="TestProject"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid Margin="10">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="Auto" />
            <ColumnDefinition Width="*"    />
        </Grid.ColumnDefinitions>
        <ListBox Name="listBox" Grid.Column="0"
            VerticalAlignment="Top"
            Width="100"
            BorderThickness="1"
            BorderBrush="Black">
            <ListBoxItem>Auto</ListBoxItem>
            <ListBoxItem>10</ListBoxItem>
            <ListBoxItem>20</ListBoxItem>
            <ListBoxItem>30</ListBoxItem>
            <ListBoxItem>40</ListBoxItem>
            <ListBoxItem>50</ListBoxItem>
            <ListBoxItem>60</ListBoxItem>
            <ListBoxItem>70</ListBoxItem>
            <ListBoxItem>80</ListBoxItem>
            <ListBoxItem>90</ListBoxItem>
            <ListBoxItem>100</ListBoxItem>
        </ListBox>
        <Border Grid.Column="1"
            Margin="10 0 0 0"
            BorderThickness="1"
            BorderBrush="Black">
            <Canvas Name="canvas">
                <TextBox Name="textBox" Canvas.Left="50" Canvas.Top="100"
                    Width="200"
                    Height="25"
                    BorderThickness="1"
                    BorderBrush="Black"
                    VerticalContentAlignment="Center" />
            </Canvas>
        </Border>
    </Grid>
</Window>

 

▶ MainWindow.xaml.cs

using System.Windows;
using System.Windows.Controls;

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

        #region 생성자 - MainWindow()

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

            this.listBox.SelectedIndex = 5;

            this.listBox.SelectionChanged += listBox_SelectionChanged;
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 리스트 박스 선택 변경시 처리하기 - listBox_SelectionChanged(sender, e)

        /// <summary>
        /// 리스트 박스 선택 변경시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void listBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            ListBox listBox = sender as ListBox;

            ListBoxItem listBoxItem =listBox.SelectedItem as ListBoxItem;

            LengthConverter lengthConverter = new LengthConverter();

            double left = (double)lengthConverter.ConvertFromString(listBoxItem.Content.ToString());

            Canvas.SetLeft(this.textBox, left);
        }

        #endregion
    }
}
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