在这一部分里，我将讲解如何编写一个应用程序以及访问Windows Phone中文本框的值。
首先从编写应用程序说起。
编写第一个应用程序
从File菜单选择New project，并选择Windows Phone applicaton。将三个文本框添加到网格面板，前两个文本框用于输入数值，第三个文本框显示结果。
MainPage.xaml<!--LayoutRoot is the root grid where all page content is placed--> <Grid x:Name="LayoutRoot" Background="Transparent"> <Grid.RowDefinitions> <RowDefinition Height="Auto"/> <RowDefinition Height="*"/> </Grid.RowDefinitions> <!--TitlePanel contains the name of the application and page title--> <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28"> <TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/> <TextBlock x:Name="PageTitle" Text="1st Application" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/> </StackPanel> <!--ContentPanel - place additional content here--> <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0"> <TextBlock x:Name="lblfirst" Text="Enter 1st Number" Margin="25,38,241,527"></TextBlock> <TextBlock x:Name="lblsecond" Text="Enter 2nd Number" Margin="25,98,241,467"></TextBlock> <TextBlock x:Name="lblresult" Text="Result" Margin="25,161,241,404"></TextBlock> <TextBox x:Name="txtfirst" Margin="225,24,6,508"></TextBox> <TextBox x:Name="txtsecond" Margin="225,84,6,450"></TextBox> <TextBox x:Name="txtresult" Margin="225,147,6,381"></TextBox> <Button x:Name="btnadd" Height="95" Content="Addition" Margin="0,232,0,280" Click="btnadd_Click"></Button> </Grid> </Grid>
现在为按钮的点击事件编写代码，第一个和第二个文本框接收用户输入的数据，第三个文本框显示两个数字相加的结果。
MainPage.xaml.csusing System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using Microsoft.Phone.Controls; namespace WriteFirstApplication { public partial class MainPage : PhoneApplicationPage { // Constructor public MainPage() { InitializeComponent(); } private void btnadd_Click(object sender, RoutedEventArgs e) { int result = Convert.ToInt32(txtfirst.Text)+Convert.ToInt32(txtsecond.Text); txtresult.Text = result.ToString(); } } }
所有完成之后运行应用程序。
现在编写显示运行消息的信息提示框。你只需要添加一行代码就可以完成信息提示框的设计。
MessageBox.Show(“YourContent”)
MainPage.xaml.csusing System; using System.Collections.Generic; using System.Linq; using System.Net; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using Microsoft.Phone.Controls; namespace WriteFirstApplication { public partial class MainPage : PhoneApplicationPage { // Constructor public MainPage() { InitializeComponent(); } private void btnadd_Click(object sender, RoutedEventArgs e) { int result = Convert.ToInt32(txtfirst.Text)+Convert.ToInt32(txtsecond.Text); MessageBox.Show("Addition of "+ txtfirst.Text +"&"+ txtsecond.Text +"=" +result.ToString()); } } }
本文翻译自 c-sharpcorner.com
标签： windows客户端开发