WPF计算器设计
今天做了一个简单的加减乘除计算器：通过comboBox来选择计算方式，把编辑框内的两个数据进行计算，并显示到最终的编辑框中。
设计代码：
1 <Window x:Class="Calculator.MainWindow" 2 xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 3 xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 4 Title="MainWindow" Height="350" Width="500"> 5 <Grid Background="LightBlue"> 6 <TextBox x:Name="textBox1" HorizontalAlignment="Left" Margin="10,32,0,0" VerticalAlignment="Top" Width="400" Background="BurlyWood"/> 7 <TextBox x:Name="textBox2" HorizontalAlignment="Left" Margin="10,79,0,0" VerticalAlignment="Top" Width="400" Background="GreenYellow"/> 8 <TextBox x:Name="textBox3" HorizontalAlignment="Left" Margin="10,126,0,0" VerticalAlignment="Top" Width="400" Background="Goldenrod"/> 9 <Label Content="Data:" HorizontalAlignment="Left" Margin="10,1,0,0" VerticalAlignment="Top"/> 10 <Label Content="Data:" HorizontalAlignment="Left" Margin="10,59,0,0" VerticalAlignment="Top"/> 11 <Label Content="Result:" HorizontalAlignment="Left" Margin="10,106,0,0" VerticalAlignment="Top"/> 12 <Label Content="Method:" HorizontalAlignment="Left" Margin="10,150,0,0" VerticalAlignment="Top"/> 13 <Button Content="Calculate" HorizontalAlignment="Left" Margin="150,250,0,0" VerticalAlignment="Top" Width="80" Background="Green" Click="Click_Calculator" /> 14 <Button Content="Exit" HorizontalAlignment="Left" Margin="300,250,0,0" VerticalAlignment="Top" Width="80" Background="CadetBlue" Click="Click_Exit"/> 15 <ComboBox x:Name="method" HorizontalAlignment="Left" Margin="25,171,0,0" VerticalAlignment="Top" Width="120"> 16 <ComboBoxItem>Add </ComboBoxItem> 17 <ComboBoxItem>subtraction</ComboBoxItem> 18 <ComboBoxItem> multiplication </ComboBoxItem> 19 <ComboBoxItem>division</ComboBoxItem> 20 </ComboBox> 21 22 </Grid> 23 </Window>
cs代码：
1 using System; 2 using System.Collections.Generic; 3 using System.Linq; 4 using System.Text; 5 using System.Threading.Tasks; 6 using System.Windows; 7 using System.Windows.Controls; 8 using System.Windows.Data; 9 using System.Windows.Documents; 10 using System.Windows.Input; 11 using System.Windows.Media; 12 using System.Windows.Media.Imaging; 13 using System.Windows.Navigation; 14 using System.Windows.Shapes; 15 16 namespace Calculator 17 { 18 /// <summary> 19 /// MainWindow.xaml 的交互逻辑 20 /// </summary> 21 public partial class MainWindow : Window 22 { 23 public MainWindow() 24 { 25 InitializeComponent(); 26 } 27 28 private void Click_Calculator(object sender, RoutedEventArgs e) 29 { 30 double fdat0,fdat1,fdat2; 31 string str0 = textBox1.Text; 32 string str1 = textBox2.Text; 33 try 34 { 35 fdat0 = Convert.ToDouble(str0); 36 fdat1 = Convert.ToDouble(str1); 37 if (method.SelectedIndex == 0)///add 38 { 39 fdat2 = fdat0 + fdat1; 40 } 41 else if (method.SelectedIndex == 1)///subtraction 42 { 43 fdat2 = fdat0 - fdat1; 44 } 45 else if (method.SelectedIndex == 2)///multiplication 46 { 47 fdat2 = fdat0 * fdat1; 48 } 49 else if (method.SelectedIndex == 3)///division 50 { 51 fdat2 = fdat0 / fdat1; 52 } 53 else 54 { 55 fdat2 = fdat0 + fdat1; 56 } 57 textBox3.Text = Convert.ToString(fdat2); 58 } 59 catch (Exception ex) 60 { 61 MessageBox.Show("A handled exception just occurred: " + ex.Message, "Exception Sample", MessageBoxButton.OK, MessageBoxImage.Warning); 62 } 63 } 64 private void Click_Exit(object sender, RoutedEventArgs e) 65 { 66 App.Current.Shutdown(); 67 } 68 } 69 }
运行结果：
谢谢.
