[WPF] PageFunction

PageFunction 은 쉽게 설명하면 Navigation 구조에서 리턴이 있는 페이지 라고 보면 되겠다

회원가입절치를 진행할 때 주소입력시 주소를 조회하기위한 화면이 뜨고

주소검색이 끝나면 다시 원래 페이지로 돌아와 주소가 입력되게 되는데

주소를 조회하기 위한 화면이 PageFunction 으로 구현하면 된다.

 

MainWindow.xaml

<Window x:Class="WpfApp.MainWindow"         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"         xmlns:d="http://schemas.microsoft.com/expression/blend/2008"         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"         mc:Ignorable="d"         WindowStartupLocation="CenterScreen"         Title="MainWindow" Height="400" Width="250">     <Grid>         <Frame Source="MainPage.xaml" />     </Grid> </Window>

 

MainWindow.xaml.cs

using System.Windows;   namespace WpfApp {     public partial class MainWindow : Window     {         public MainWindow()         {             InitializeComponent();         }     } }

 

MainPage.xaml

<Page x:Class="WpfApp.MainPage"       xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"       xmlns:d="http://schemas.microsoft.com/expression/blend/2008"       xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"       xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"       mc:Ignorable="d"       d:DesignHeight="450" d:DesignWidth="250"       Title="Page1" Background="White">     <StackPanel>         <StackPanel Orientation="Horizontal" Margin="5">             <Label Content="이름 : " VerticalAlignment="Center" />             <TextBox Background="LightGray" VerticalAlignment="Center" Width="100"/>         </StackPanel>         <Button Name="addressButton" Content="주소입력" Click="AddressButton_Click" />         <StackPanel Orientation="Horizontal" Margin="5">             <Label Content="주소 : " VerticalAlignment="Center" />             <TextBlock Name="addressTextBlock" Background="LightGray" Width="200" VerticalAlignment="Center"/>         </StackPanel>     </StackPanel> </Page>

 

* MainPage 에서 PageFunction 페이지를 호출하고 입력값을 리턴 받는다.

 

MainPage.xaml.cs

using System.Windows.Controls; using System.Windows.Navigation;   namespace WpfApp {     public partial class MainPage : Page     {         public MainPage()         {             InitializeComponent();         }           /// <summary>         /// 주소입력 버튼 클릭이벤트입니다.         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         private void AddressButton_Click(object sender, System.Windows.RoutedEventArgs e)         {             InputAddressPage inputAddressPage = new InputAddressPage();               inputAddressPage.Return += new ReturnEventHandler<string>(InputAddressPage_Return);               NavigationService.Navigate(inputAddressPage);         }           /// <summary>         /// InputAddressPage 가 닫혔을 때 결과값을 받아 처리하는 이벤트입니다.         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         void InputAddressPage_Return(object sender, ReturnEventArgs<string> e)         {             this.addressTextBlock.Text = e.Result;         }     } }

 

InputAddressPage.xaml

<PageFunction x:Class="WpfApp.InputAddressPage"               xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"               xmlns:d="http://schemas.microsoft.com/expression/blend/2008"               xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"               xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"               xmlns:sys="clr-namespace:System;assembly=mscorlib"               x:TypeArguments="sys:String"               mc:Ignorable="d"               d:DesignHeight="300" d:DesignWidth="300"               Title="InputAddressPage" Background="Yellow">     <StackPanel>         <TextBlock Name="addressTextBlock" Text="주소를 입력하세요" VerticalAlignment="Center"/>         <TextBox Name="addressTextBox" VerticalAlignment="Center"/>         <Button Name="inputButton" Content="입력" Click="InputButton_Click" />     </StackPanel> </PageFunction>

 

InputAddressPage.xaml.cs

using System.Windows; using System.Windows.Navigation;   namespace WpfApp {     public partial class InputAddressPage : PageFunction<string>     {         public InputAddressPage()         {             InitializeComponent();         }           /// <summary>         /// 입력 버튼 클릭시 이벤트입니다.         /// </summary>         /// <param name="sender"></param>         /// <param name="e"></param>         private void InputButton_Click(object sender, RoutedEventArgs e)         {             // MainPage 로 값을 넘겨줍니다.             OnReturn(new ReturnEventArgs<string>(this.addressTextBox.Text));         }     } }