[C#/WPF] LengthConverter 클래스 : ConvertFromString 메소드를 사용해 문자열에서 길이 구하기

■ LengthConverter 클래스의 ConvertFromString 메소드를 사용해 문자열에서 길이를 구하는 방법을 보여준다.

▶ 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>

<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.ColumnDefinitions>

</Grid.ColumnDefinitions>

<ListBox Name="listBox" Grid.Column="0"

VerticalAlignment="Top"

Width="100"

BorderThickness="1"

BorderBrush="Black">

</ListBox>

<Border Grid.Column="1"

Margin="10 0 0 0"

BorderThickness="1"

BorderBrush="Black">

<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
    }
}

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

}

TestProject.zip