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C#编程之串口（三）

这一章我将继续上一章内容进一步完善我们的串口通信，并添加对话框的美观设计。

首先我们说一下双向通讯，上一章我们实现了单向接收功能，这里将说一下发射功能：

数据发送，总共有三种形式，发送字符串类，发送byte类，发送char类。要实现这三种，都必须调用串口写操作方法 SerialPort.Write（），该方法对于不同类型的发送，通过方法重载的方式定义了相应的方法：

public void Write (string str); 发送字符串
public void Write (byte[] buffer, int offset, int count); 发送byte类型
public void Write (char[] buffer, int offset, int count); 发送char类型

本例程发送的是加密后的序列号码，所以只需调用 myPort.Write(output,0,output.Length); 方法即可。此外我们添加一个清空按键:

       private void Btn2_Click(object sender, RoutedEventArgs e)
        {
            m_textBox1.Text = "";
            m_textBox2.Text = "";
        }

<Button Content="Clear" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="51" Margin="0,0,22,80" Click="Btn2_Click" Height="58"/>

同时为了美观对话框，我们加入之前定义好的按键动态效果模板来实现按键的动态效果，和加入对label字体格式，textbox背景颜色，以及对话框背景修改：

  1 <Window.Resources>
  2         <!--define glass gradient stop resource-->
  3         <GradientStopCollection x:Key="myGradientStopResource">
  4             <GradientStop Color="WhiteSmoke" Offset="0.2"/>
  5             <GradientStop Color="Transparent" Offset="0.4"/>
  6             <GradientStop Color="WhiteSmoke" Offset="0.5"/>
  7             <GradientStop Color="Transparent" Offset=" 0.75"/>
  8             <GradientStop Color="WhiteSmoke" Offset="0.9"/>
  9             <GradientStop Color="Transparent" Offset=" 1.0"/>
 10         </GradientStopCollection>
 11 
 12         <!--define gradient brush resource-->
 13         <LinearGradientBrush x:Key="myGlassBrushResource" StartPoint="0,0" EndPoint=" 1,1" Opacity="0.75"
 14                              GradientStops="{StaticResource myGradientStopResource }"/>
 15 
 16         <!--background brush resource-->
 17         <LinearGradientBrush x:Key="grayBlueGradientBrush" StartPoint=" 0,0" EndPoint="1,1">
 18             <GradientStop Color="Gray" Offset="0"/>
 19             <GradientStop Color="Cyan" Offset="0.5"/>
 20             <GradientStop Color="Gold" Offset="1.0"/>
 21         </LinearGradientBrush>
 22 
 23         <!--define button options-->
 24         <Style TargetType="Button">
 25             <!--define button background-->
 26             <Setter Property="Background" Value="{StaticResource grayBlueGradientBrush}"/>
 27             <!--define button template-->
 28             <Setter Property="Template">
 29                 <Setter.Value>
 30                     <!--target type is button-->
 31                     <ControlTemplate TargetType="{x:Type Button}">
 32                         <Grid Margin="-1,0,-10,1">
 33                             <!--outline rectangle-->
 34                             <Rectangle x:Name="outerRectangle" HorizontalAlignment="Stretch"
 35                                        VerticalAlignment="Stretch" Stroke="{TemplateBinding Background}"
 36                                        RadiusX="10" RadiusY="10" StrokeThickness="5" Fill="Transparent"/>
 37                             <!--inner rectangle-->
 38                             <Rectangle x:Name="innerRectangle" HorizontalAlignment="Stretch"
 39                                        VerticalAlignment="Stretch" Stroke="Transparent"
 40                                        StrokeThickness="5" Fill="{TemplateBinding Background}"
 41                                        RadiusX="10" RadiusY="10"/>
 42                             <!--glass rectangle-->
 43                             <Rectangle x:Name="glassCube" HorizontalAlignment="Stretch"
 44                                        VerticalAlignment="Stretch" StrokeThickness="1"
 45                                        RadiusX="5" RadiusY="5" Opacity="0" 
 46                                        Fill="{StaticResource myGlassBrushResource}"
 47                                        RenderTransformOrigin="0.5,0.5">
 48                                 <!--rectangle stroke-->
 49                                 <Rectangle.Stroke>
 50                                     <LinearGradientBrush StartPoint=" 0.5,0" EndPoint="0.5,1">
 51                                         <LinearGradientBrush.GradientStops>
 52                                             <GradientStop Color="LightBlue" Offset="0.0"/>
 53                                             <GradientStop Color="Gray" Offset="1.0"/>
 54                                         </LinearGradientBrush.GradientStops>
 55                                     </LinearGradientBrush>
 56                                 </Rectangle.Stroke>
 57                                 <!--glass rectangle render transform-->
 58                                 <Rectangle.RenderTransform>
 59                                     <TransformGroup>
 60                                         <!--To stretch or contact horizontally or vertially-->
 61                                         <ScaleTransform/>
 62                                         <!--rotate transform by angles-->
 63                                         <RotateTransform/>
 64                                     </TransformGroup>
 65                                 </Rectangle.RenderTransform>
 66                             </Rectangle>
 67                             <!--dock panel-->
 68                             <DockPanel Name="myContentPresenterDockPanel">
 69                                 <ContentPresenter x:Name="myContentPresent" HorizontalAlignment="Center" Margin="0,20"
 70                                                   Content="{TemplateBinding Content}" TextBlock.Foreground="Black" TextBlock.FontWeight="Bold"/>
 71                             </DockPanel>
 72                         </Grid>
 73                         <!--control template-->
 74                         <ControlTemplate.Triggers>
 75                             <!--mouse over trigger-->
 76                             <Trigger Property="IsMouseOver" Value="True">
 77                                 <!--rectangle stroke-->
 78                                 <Setter Property="Rectangle.Stroke" TargetName="outerRectangle"
 79                                         Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
 80                                 <Setter Property="Rectangle.Opacity" Value="1" TargetName="glassCube"/>
 81                             </Trigger>
 82                             <!--Mouse focused trigger-->
 83                             <Trigger Property="IsFocused" Value="True">
 84                                 <Setter Property="Rectangle.Stroke" TargetName="innerRectangle"
 85                                         Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
 86                                 <Setter Property="Rectangle.Opacity" Value="1" TargetName="glassCube"/>
 87                             </Trigger>
 88                             <!--Event trigger mouse enter-->
 89                             <EventTrigger RoutedEvent="Mouse.MouseEnter">
 90                                 <!--actions-->
 91                                 <EventTrigger.Actions>
 92                                     <!--begin story board-->
 93                                     <BeginStoryboard Name="mouseEnterBeginStoryboard">
 94                                         <Storyboard>
 95                                             <!--animation-->
 96                                             <DoubleAnimation Storyboard.TargetName="glassCube"
 97                                                              Storyboard.TargetProperty=
 98                                                              "(Rectangle.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"
 99                                                              By="-0.2" Duration="0:0:0.5" />
100                                             <DoubleAnimation Storyboard.TargetName="glassCube"
101                                                              Storyboard.TargetProperty=
102                                                              "(Rectangle.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"
103                                                              By="-0.2" Duration="0:0:0.5" />
104                                         </Storyboard>
105                                     </BeginStoryboard>
106                                 </EventTrigger.Actions>
107                             </EventTrigger>
108                             <!--event trigger mouse leave-->
109                             <EventTrigger RoutedEvent="Mouse.MouseLeave">
110                                 <EventTrigger.Actions>
111                                     <StopStoryboard BeginStoryboardName="mouseEnterBeginStoryboard"/>
112                                 </EventTrigger.Actions>
113                             </EventTrigger>
114                             <!--event trigger button click-->
115                             <EventTrigger RoutedEvent="Button.Click">
116                                 <EventTrigger.Actions>
117                                     <BeginStoryboard>
118                                         <Storyboard>
119                                             <DoubleAnimation Storyboard.TargetName="glassCube"
120                                                              Storyboard.TargetProperty=
121                                                              "(Rectangle.RenderTransform).(TransformGroup.Children)[1].(RotateTransform.Angle)"
122                                                              By="360" Duration="0:0:0.5"/>
123                                         </Storyboard>
124                                     </BeginStoryboard>
125                                 </EventTrigger.Actions>
126                             </EventTrigger>
127                         </ControlTemplate.Triggers>
128                     </ControlTemplate>
129                 </Setter.Value>
130             </Setter>
131         </Style>
132 
133         <Style TargetType="Label">
134             <Setter Property="FontWeight" Value="Bold"/>
135         </Style>
136         <Style TargetType="TextBox">
137             <Setter Property="Background" Value="LightCyan"/>
138         </Style>
139     </Window.Resources>
140

View Code

因为我们之前定义好的模板，我们直接调用即可，这些方法我们也可以运用到其他的设计中。这样做的目的是大大的缩短了我们设计的时间。

最后完整码如下：

XAML:

  1 <Window x:Class="SearilPort.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="525" Background="LightSkyBlue">
  5     <Window.Resources>
  6         <!--define glass gradient stop resource-->
  7         <GradientStopCollection x:Key="myGradientStopResource">
  8             <GradientStop Color="WhiteSmoke" Offset="0.2"/>
  9             <GradientStop Color="Transparent" Offset="0.4"/>
 10             <GradientStop Color="WhiteSmoke" Offset="0.5"/>
 11             <GradientStop Color="Transparent" Offset=" 0.75"/>
 12             <GradientStop Color="WhiteSmoke" Offset="0.9"/>
 13             <GradientStop Color="Transparent" Offset=" 1.0"/>
 14         </GradientStopCollection>
 15 
 16         <!--define gradient brush resource-->
 17         <LinearGradientBrush x:Key="myGlassBrushResource" StartPoint="0,0" EndPoint=" 1,1" Opacity="0.75"
 18                              GradientStops="{StaticResource myGradientStopResource }"/>
 19 
 20         <!--background brush resource-->
 21         <LinearGradientBrush x:Key="grayBlueGradientBrush" StartPoint=" 0,0" EndPoint="1,1">
 22             <GradientStop Color="Gray" Offset="0"/>
 23             <GradientStop Color="Cyan" Offset="0.5"/>
 24             <GradientStop Color="Gold" Offset="1.0"/>
 25         </LinearGradientBrush>
 26 
 27         <!--define button options-->
 28         <Style TargetType="Button">
 29             <!--define button background-->
 30             <Setter Property="Background" Value="{StaticResource grayBlueGradientBrush}"/>
 31             <!--define button template-->
 32             <Setter Property="Template">
 33                 <Setter.Value>
 34                     <!--target type is button-->
 35                     <ControlTemplate TargetType="{x:Type Button}">
 36                         <Grid Margin="-1,0,-10,1">
 37                             <!--outline rectangle-->
 38                             <Rectangle x:Name="outerRectangle" HorizontalAlignment="Stretch"
 39                                        VerticalAlignment="Stretch" Stroke="{TemplateBinding Background}"
 40                                        RadiusX="10" RadiusY="10" StrokeThickness="5" Fill="Transparent"/>
 41                             <!--inner rectangle-->
 42                             <Rectangle x:Name="innerRectangle" HorizontalAlignment="Stretch"
 43                                        VerticalAlignment="Stretch" Stroke="Transparent"
 44                                        StrokeThickness="5" Fill="{TemplateBinding Background}"
 45                                        RadiusX="10" RadiusY="10"/>
 46                             <!--glass rectangle-->
 47                             <Rectangle x:Name="glassCube" HorizontalAlignment="Stretch"
 48                                        VerticalAlignment="Stretch" StrokeThickness="1"
 49                                        RadiusX="5" RadiusY="5" Opacity="0" 
 50                                        Fill="{StaticResource myGlassBrushResource}"
 51                                        RenderTransformOrigin="0.5,0.5">
 52                                 <!--rectangle stroke-->
 53                                 <Rectangle.Stroke>
 54                                     <LinearGradientBrush StartPoint=" 0.5,0" EndPoint="0.5,1">
 55                                         <LinearGradientBrush.GradientStops>
 56                                             <GradientStop Color="LightBlue" Offset="0.0"/>
 57                                             <GradientStop Color="Gray" Offset="1.0"/>
 58                                         </LinearGradientBrush.GradientStops>
 59                                     </LinearGradientBrush>
 60                                 </Rectangle.Stroke>
 61                                 <!--glass rectangle render transform-->
 62                                 <Rectangle.RenderTransform>
 63                                     <TransformGroup>
 64                                         <!--To stretch or contact horizontally or vertially-->
 65                                         <ScaleTransform/>
 66                                         <!--rotate transform by angles-->
 67                                         <RotateTransform/>
 68                                     </TransformGroup>
 69                                 </Rectangle.RenderTransform>
 70                             </Rectangle>
 71                             <!--dock panel-->
 72                             <DockPanel Name="myContentPresenterDockPanel">
 73                                 <ContentPresenter x:Name="myContentPresent" HorizontalAlignment="Center" Margin="0,20"
 74                                                   Content="{TemplateBinding Content}" TextBlock.Foreground="Black" TextBlock.FontWeight="Bold"/>
 75                             </DockPanel>
 76                         </Grid>
 77                         <!--control template-->
 78                         <ControlTemplate.Triggers>
 79                             <!--mouse over trigger-->
 80                             <Trigger Property="IsMouseOver" Value="True">
 81                                 <!--rectangle stroke-->
 82                                 <Setter Property="Rectangle.Stroke" TargetName="outerRectangle"
 83                                         Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
 84                                 <Setter Property="Rectangle.Opacity" Value="1" TargetName="glassCube"/>
 85                             </Trigger>
 86                             <!--Mouse focused trigger-->
 87                             <Trigger Property="IsFocused" Value="True">
 88                                 <Setter Property="Rectangle.Stroke" TargetName="innerRectangle"
 89                                         Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
 90                                 <Setter Property="Rectangle.Opacity" Value="1" TargetName="glassCube"/>
 91                             </Trigger>
 92                             <!--Event trigger mouse enter-->
 93                             <EventTrigger RoutedEvent="Mouse.MouseEnter">
 94                                 <!--actions-->
 95                                 <EventTrigger.Actions>
 96                                     <!--begin story board-->
 97                                     <BeginStoryboard Name="mouseEnterBeginStoryboard">
 98                                         <Storyboard>
 99                                             <!--animation-->
100                                             <DoubleAnimation Storyboard.TargetName="glassCube"
101                                                              Storyboard.TargetProperty=
102                                                              "(Rectangle.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleX)"
103                                                              By="-0.2" Duration="0:0:0.5" />
104                                             <DoubleAnimation Storyboard.TargetName="glassCube"
105                                                              Storyboard.TargetProperty=
106                                                              "(Rectangle.RenderTransform).(TransformGroup.Children)[0].(ScaleTransform.ScaleY)"
107                                                              By="-0.2" Duration="0:0:0.5" />
108                                         </Storyboard>
109                                     </BeginStoryboard>
110                                 </EventTrigger.Actions>
111                             </EventTrigger>
112                             <!--event trigger mouse leave-->
113                             <EventTrigger RoutedEvent="Mouse.MouseLeave">
114                                 <EventTrigger.Actions>
115                                     <StopStoryboard BeginStoryboardName="mouseEnterBeginStoryboard"/>
116                                 </EventTrigger.Actions>
117                             </EventTrigger>
118                             <!--event trigger button click-->
119                             <EventTrigger RoutedEvent="Button.Click">
120                                 <EventTrigger.Actions>
121                                     <BeginStoryboard>
122                                         <Storyboard>
123                                             <DoubleAnimation Storyboard.TargetName="glassCube"
124                                                              Storyboard.TargetProperty=
125                                                              "(Rectangle.RenderTransform).(TransformGroup.Children)[1].(RotateTransform.Angle)"
126                                                              By="360" Duration="0:0:0.5"/>
127                                         </Storyboard>
128                                     </BeginStoryboard>
129                                 </EventTrigger.Actions>
130                             </EventTrigger>
131                         </ControlTemplate.Triggers>
132                     </ControlTemplate>
133                 </Setter.Value>
134             </Setter>
135         </Style>
136 
137         <Style TargetType="Label">
138             <Setter Property="FontWeight" Value="Bold"/>
139         </Style>
140         <Style TargetType="TextBox">
141             <Setter Property="Background" Value="LightCyan"/>
142         </Style>
143     </Window.Resources>
144     <Grid Margin="0,-2,0,2">
145         <TextBox HorizontalAlignment="Left" VerticalAlignment="Top" VerticalScrollBarVisibility="Auto" 
146                  Width="324" Height="119" Name="m_textBox1" Margin="10,40,0,0"/>
147         <TextBox Name="m_textBox2" HorizontalAlignment="Left" VerticalScrollBarVisibility="Auto" 
148                  Height="106" Margin="10,195,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="324"/>
149 
150         <ComboBox Name="myCOM" Margin="0,58,38,0" VerticalAlignment="Top" HorizontalAlignment="Right" Width="90" Height="22"/>
151         <ComboBox Name="myBaudRate" Margin="0,116,38,0" VerticalAlignment="Top" HorizontalAlignment="Right" Width="90" Height="22"/>
152 
153         <Label Content="COM" HorizontalAlignment="Left" Margin="389,27,0,0" VerticalAlignment="Top" Width="62"/>
154         <Label Content="BaudRate" HorizontalAlignment="Left" Margin="389,85,0,0" VerticalAlignment="Top"/>
155         <Label Content="Received Data" HorizontalAlignment="Left" Margin="15,10,0,0" VerticalAlignment="Top" Width="97"/>
156         <Label Content="Transmit Data" HorizontalAlignment="Left" Margin="15,164,0,0" VerticalAlignment="Top" Width="97"/>
157 
158         <Button Content="Clear" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="51" Margin="0,0,22,80" Click="Btn2_Click" Height="58"/>
159         <Button Content="Open" HorizontalAlignment="Right" VerticalAlignment="Bottom" Width="51" Margin="0,0,95,81" Click="Btn1_Click" 
160                 Name="myBtn" RenderTransformOrigin="0.5,0.5" Height="57"/>
161 
162     </Grid>
163 </Window>

XAML

CS:

  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 using System.IO.Ports;
 16 using System.Security.Cryptography;
 17 
 18 namespace SearilPort
 19 {
 20     /// <summary>
 21     /// Interaction logic for MainWindow.xaml
 22     /// </summary>
 23     public partial class MainWindow : Window
 24     {
 25         SerialPort myPort = new SerialPort();
 26         bool serialState;
 27         public MainWindow()
 28         {
 29             InitializeComponent();
 30             myComboxs();
 31         }
 32         private void myComboxs()
 33         {
 34             myCOM.Items.Add("COM0");
 35             myCOM.Items.Add("COM1");
 36             myCOM.Items.Add("COM2");
 37             myCOM.Items.Add("COM3");
 38             myCOM.Items.Add("COM4");
 39             myCOM.SelectedIndex = myCOM.Items.IndexOf("COM1");
 40             myBaudRate.Items.Add("2400");
 41             myBaudRate.Items.Add("4800");
 42             myBaudRate.Items.Add("9600");
 43             myBaudRate.Items.Add("38400");
 44             myBaudRate.Items.Add("115200");
 45             myBaudRate.SelectedIndex = myBaudRate.Items.IndexOf("9600");
 46             serialState = false;
 47             myPort.DataReceived += DataReceived;
 48         }
 49         private void Btn1_Click(object sender, RoutedEventArgs e)
 50         {
 51             try
 52             {
 53                 if (serialState == false)
 54                 {
 55                     if(myPort.IsOpen)
 56                     {
 57                         myPort.Close();
 58                     }
 59                     myPort.BaudRate = int.Parse(myBaudRate.Text);
 60                     myPort.DataBits = 8;
 61                     myPort.PortName = myCOM.Text;
 62                     myPort.Open();
 63                     serialState = true;
 64                     m_textBox1.Text = "Serial Port is Opened...
";
 65                     myBtn.Content = "Closed";
 66                 }
 67                 else
 68                 {
 69                     if (myPort.IsOpen)
 70                     {
 71                         myPort.Close();
 72                     }
 73                     serialState = false;
 74                     m_textBox1.Text = "Serial Port is Closed...
";
 75                     m_textBox2.Text = "";
 76                     myBtn.Content = "Open";
 77                 }
 78             }
 79             catch(Exception ex)
 80             {
 81                 MessageBox.Show(ex.Message);
 82             }
 83         }
 84         private void Btn2_Click(object sender, RoutedEventArgs e)
 85         {
 86             m_textBox1.Text = "";
 87             m_textBox2.Text = "";
 88         }
 89         private void DataReceived(object sender,SerialDataReceivedEventArgs e)
 90         {
 91             try
 92             {
 93                 byte[] inbuf = new byte[8];
 94                 byte[] output = new byte[16];
 95                 myPort.Read(inbuf, 0, inbuf.Length);
 96                 string str = System.Text.Encoding.Default.GetString(inbuf);
 97                 this.Dispatcher.Invoke(new Action(() =>
 98                     {
 99                         foreach (byte i in inbuf)
100                         {
101                             m_textBox1.Text += i.ToString("X2");
102                         }
103                         m_textBox1.Text += "
";
104                         using (var aes = new RijndaelManaged())
105                         {
106                             aes.Key = new byte[] { 0x1F, 0x54, 0x52, 0x6A, 0x73, 0x93, 0x58, 0x9E, 0x4B, 0xCF, 0xFB, 0xAE, 0xFC, 0x97, 0x59, 0x3E };
107                             aes.IV = new byte[16];
108                             aes.Padding = PaddingMode.None;
109                             for (int i = 0; i < 8; i++)
110                             {
111                                 output[i] = inbuf[i];
112                             }
113                             for (byte i = 8; i < 16; i++)
114                             {
115                                 output[i] = (byte)(output[i - 8] ^ output[i - 4]);
116                             }
117                             m_textBox1.Text += "16 byte ids:
";
118                             foreach (byte i in output)
119                                 m_textBox1.Text += i.ToString("X2");
120                             m_textBox1.Text += "
";
121                             var cryptoTransform = aes.CreateEncryptor();
122                             byte[] resultBuffer = cryptoTransform.TransformFinalBlock(output, 0, output.Length);
123                             m_textBox2.Text += "SerialNo.=
";
124                             foreach (byte i in resultBuffer)
125                             {
126                                 m_textBox2.Text += i.ToString("X2");
127                             }
128                             m_textBox2.Text += "
";
129                         }
130                         myPort.Write(output,0,output.Length);
131                         m_textBox1.ScrollToEnd();
132                         m_textBox2.ScrollToEnd();
133                     }));
134             }
135             catch(Exception ex)
136             {
137                 MessageBox.Show(ex.Message);
138             }
139         }
140     }
141 }

编译运行：

End.

谢谢.

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原文地址：https://www.cnblogs.com/lumao1122-Milolu/p/12015181.html