基于WPF技术的换热站智能监控系统16--动态数据绑定

1、实现思路

1）实时读取到的数据绑定到前台UI控件上，这个通过MVVM模式实现，同时注意实时读取必须通过任务task异步方式，这就需要读取PLC数据。

2）UI控件的动作，如开或关水泵，必定能够将值写入PLC，这就需要写入PLC数据，此时当上面1的任务执行时，又获取到了新的实时数据，从而改变UI控件

注意：

默认启动程序后，就主动读取PLC数据，启动成功后，可以关闭某个水泵

2、开搞

1、完善数据块中的变量

每个水泵有3个数据，即状态，温度，压力，所以有9个变量

2、完善监控变量

3、完善逻辑代码

  private void ReadmyPLC(){tasks.Add(Task.Run(async () =>{ plc.Open();while (!cts.IsCancellationRequested){await Task.Delay(5000);//读取float，从左到右参数依次是：数据块类型，数据块号，启始地址，变量类型，读取数量var result = plc.Read(S7.Net.DataType.DataBlock, 1, 2, S7.Net.VarType.Real, 6);float[] values = (float[])result; //水泵1数据MainData.MomentDataList1[0].Value = values[0]; MainData.MomentDataList1[1].Value = values[1];//水泵2数据MainData.MomentDataList2[0].Value = values[2];MainData.MomentDataList2[1].Value = values[3];//水泵3数据MainData.MomentDataList3[0].Value = values[4];MainData.MomentDataList3[1].Value = values[5];//读取bool，DB1.DBX0.0是变量的具体地址var result2 = plc.Read(pumpaddr1);   //水泵1状态 Pump1State = bool.Parse(result2.ToString());if (!Pump1State){WaterDirection1 = "NONE";//停止流动}else{WaterDirection1 = "EW";//开始流动}result2 = plc.Read(pumpaddr2);//水泵2状态 Pump2State = bool.Parse(result2.ToString());if (!Pump3State){WaterDirection2 = "NONE";}else{WaterDirection2 = "EW";}result2 = plc.Read(pumpaddr3); //水泵3状态 Pump3State = bool.Parse(result2.ToString());if (!Pump3State){WaterDirection3 = "NONE";WaterDirection32 = "NONE";}else{WaterDirection3 = "EW";WaterDirection32 = "WE";}}}, cts.Token));}

4、完善控件数据绑定

<Window x:Class="West.HeatExchange.Views.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:local="clr-namespace:West.HeatExchange.Views"mc:Ignorable="d"xmlns:c="clr-namespace:West.HeatExchange.Controls"xmlns:lvc="clr-namespace:LiveCharts.Wpf;assembly=LiveCharts.Wpf"WindowStyle="None" AllowsTransparency="True" WindowStartupLocation="CenterScreen" ResizeMode="CanResizeWithGrip"Background="#F7F9FA" FontFamily="Microsoft YaHei" Foreground="#333"Title="MainWindow" Height="650" Width="1200"  ><!--窗体资源--><Window.Resources><!--手动模式/自动模式单选控件样式--><Style TargetType="RadioButton" x:Key="ModeButtonStyle"><Setter Property="Background" Value="#FFF0F4F8"/><Setter Property="Foreground" Value="Gray"/><Setter Property="FontSize" Value="12"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="RadioButton"><Border Background="{TemplateBinding Background}" Name="bor"><ContentPresenter Margin="30,5"/></Border></ControlTemplate></Setter.Value></Setter><!--触发器--><Style.Triggers><Trigger Property="IsChecked" Value="True"><Setter Property="Background" Value="#FF3BBAFF"/><Setter Property="Foreground" Value="White"/></Trigger></Style.Triggers></Style><!--水泵开样式--><Style TargetType="RadioButton" x:Key="LeftSwitchButtonStyle"><Setter Property="Background" Value="#FFF0F4F8"/><Setter Property="Foreground" Value="Gray"/><Setter Property="HorizontalAlignment" Value="Center"/><Setter Property="Template"><Setter.Value><ControlTemplate TargetType="RadioButton"><Grid><!--绘制下划线--><Border BorderBrush="Transparent" BorderThickness="0,0,0,1" Height="30" Margin="5,0" Name="bor" Width="20" HorizontalAlignment="Left"/><!--绘制曲线--><Path Data="M3 0 45 0 48 3 28 20 3 20 0 17 0 3z" Stroke="#DDD" StrokeThickness="1" Fill="{TemplateBinding 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EndPoint="1,0"><GradientStop Color="#FF3BBAFF" Offset="0"/><GradientStop Color="#113BBAFF" Offset="1"/></LinearGradientBrush></Border.Background></Border></UniformGrid></Grid><!--第4行，故障统计--><Grid Grid.Row="3" Background="#FFF0F4F8" Margin="0,5"><Border Height="16" VerticalAlignment="Bottom" Background="#FF0E3A52" CornerRadius="8"/><lvc:CartesianChart DisableAnimations="True"><lvc:CartesianChart.Series><lvc:ColumnSeries Values="319,223,63,257,335,440,178,223,53,117" MaxColumnWidth="6"/></lvc:CartesianChart.Series><lvc:CartesianChart.AxisX><lvc:Axis Labels="设备1,设备2,设备3,设备4,设备5,设备6,设备7,设备8,设备9,设备10" FontFamily="Microsoft YaHei" FontSize="6" Foreground="White"><lvc:Axis.Separator><lvc:Separator Step="1" StrokeThickness="0"/></lvc:Axis.Separator></lvc:Axis></lvc:CartesianChart.AxisX><lvc:CartesianChart.AxisY><lvc:Axis MinValue="0" MaxValue="600" Foreground="Transparent"><lvc:Axis.Separator><lvc:Separator StrokeThickness="1" Stroke="#DDD" Step="760"/></lvc:Axis.Separator></lvc:Axis></lvc:CartesianChart.AxisY></lvc:CartesianChart><Border Background="#FF3BBAFF" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="2"><TextBlock Text="故障统计" Foreground="White" FontSize="10" Margin="5,1"/></Border></Grid><!--第5行，数据报表--><Grid Grid.Row="4" Background="#FFF0F4F8" Margin="0,5"><lvc:PieChart  InnerRadius="40" Width="110" Height="110"  DisableAnimations="True" StartingRotationAngle="0" HoverPushOut="0"  ><!--以下是静态显示--><lvc:PieChart.Series><lvc:PieSeries  Values="23"  Fill="#2BBF6E" StrokeThickness="2" DataLabels="True" Foreground="Black" FontSize="11" LabelPosition="OutsideSlice" Title="锻烧车间"></lvc:PieSeries><lvc:PieSeries  Values="37" Fill="#3DDFEE" StrokeThickness="2" DataLabels="True" Foreground="Black" FontSize="11" LabelPosition="OutsideSlice" Title="模具车间"></lvc:PieSeries><lvc:PieSeries  Values="80" Fill="Red" StrokeThickness="2" DataLabels="True" Foreground="Black" FontSize="11" LabelPosition="OutsideSlice" Title="电噴车间"></lvc:PieSeries><lvc:PieSeries  Values="60" Fill="Blue" StrokeThickness="2" DataLabels="True" Foreground="Black" FontSize="11" LabelPosition="OutsideSlice" Title="组装车间"></lvc:PieSeries></lvc:PieChart.Series></lvc:PieChart><Border Background="#FF3BBAFF" VerticalAlignment="Top" HorizontalAlignment="Left" Margin="2"><TextBlock Text="数据报表" Foreground="White" FontSize="10" Margin="5,1"/></Border></Grid></Grid></Border><!--右上区域，控制模式--><Border Height="80" DockPanel.Dock="Top" Background="White" Margin="0,10,20,0" CornerRadius="3"><Border.Effect><DropShadowEffect BlurRadius="10" ShadowDepth="0" Color="LightGray" Opacity="0.3"/></Border.Effect><UniformGrid Rows="1"><!--<Button Content="连接PLC" Width="60" Height="40" Click="Button_Click_1" ></Button>--><StackPanel VerticalAlignment="Center" HorizontalAlignment="Center"><RadioButton Content="手动模式" IsChecked="True" Style="{StaticResource ModeButtonStyle}"/><RadioButton Content="自动模式" Style="{StaticResource ModeButtonStyle}"/></StackPanel><!--补水泵1--><Grid Background="#88F0F4F8" VerticalAlignment="Center" HorizontalAlignment="Center"><Grid.RowDefinitions><RowDefinition/><RowDefinition/></Grid.RowDefinitions><TextBlock Text="No.1 补水泵" Margin="20,3" HorizontalAlignment="Center"/><Grid Grid.Row="1" Margin="10,0"><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition Width="15"/><ColumnDefinition/></Grid.ColumnDefinitions><RadioButton Grid.Column="0" IsChecked="True"  Command="{Binding StartCommand}" CommandParameter="1" Grid.ColumnSpan="2"  Style="{StaticResource LeftSwitchButtonStyle}" Name="rb"/><RadioButton Grid.Column="1" Grid.ColumnSpan="2" Command="{Binding StopCommand}"  CommandParameter="1" Style="{StaticResource RightSwitchButtonStyle}"/></Grid></Grid><!--补水泵2--><Grid Background="#88F0F4F8" VerticalAlignment="Center" HorizontalAlignment="Center"><Grid.RowDefinitions><RowDefinition/><RowDefinition/></Grid.RowDefinitions><TextBlock Text="No.2 补水泵" Margin="20,3" HorizontalAlignment="Center"/><Grid Grid.Row="1" Margin="10,0"><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition Width="15"/><ColumnDefinition/></Grid.ColumnDefinitions><RadioButton IsChecked="True" Grid.ColumnSpan="2" Command="{Binding StartCommand}" CommandParameter="2" Style="{StaticResource LeftSwitchButtonStyle}"/><RadioButton Grid.Column="1" Grid.ColumnSpan="2" Command="{Binding StopCommand}"  CommandParameter="2" Style="{StaticResource RightSwitchButtonStyle}"/></Grid></Grid><!--补水泵3--><Grid Background="#88F0F4F8" VerticalAlignment="Center" HorizontalAlignment="Center"><Grid.RowDefinitions><RowDefinition/><RowDefinition/></Grid.RowDefinitions><TextBlock Text="No.3 补水泵" Margin="20,3" HorizontalAlignment="Center"/><Grid Grid.Row="1" Margin="10,0"><Grid.ColumnDefinitions><ColumnDefinition/><ColumnDefinition Width="15"/><ColumnDefinition/></Grid.ColumnDefinitions><RadioButton IsChecked="True" Grid.ColumnSpan="2" Command="{Binding StartCommand}" CommandParameter="3" Style="{StaticResource LeftSwitchButtonStyle}"/><RadioButton Grid.Column="1" Grid.ColumnSpan="2" Command="{Binding StopCommand}"  CommandParameter="3" Style="{StaticResource RightSwitchButtonStyle}"/></Grid></Grid><!--故障切换--> <Grid Background="#88F0F4F8" VerticalAlignment="Center" HorizontalAlignment="Center"><Grid.RowDefinitions><RowDefinition/><RowDefinition/></Grid.RowDefinitions><CheckBox Content="循环变频故障" Grid.Row="0" Style="{StaticResource WarningButtonStyle}" IsChecked="True"/><CheckBox Content="补水变频故障" Grid.Row="1" Style="{StaticResource WarningButtonStyle}"/></Grid></UniformGrid></Border><!--右中区域，系统运行--><Border Background="White" Margin="0,10,20,10" CornerRadius="3" ><Border.Effect><DropShadowEffect BlurRadius="10" ShadowDepth="0" Color="LightGray" Opacity="0.3"/></Border.Effect><Canvas><!--管道--> <c:PipeLine Height="7" Width="839" Direction="EW" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="10" Canvas.Top="44"/><c:PipeLine x:Name="middle" Panel.ZIndex="3" Canvas.Left="234" Canvas.Top="49"   Direction="EW"   Height="7" Width="182" CapRadius="3"><c:PipeLine.RenderTransform><TransformGroup><RotateTransform Angle="90" ></RotateTransform></TransformGroup></c:PipeLine.RenderTransform></c:PipeLine><c:PipeLine Height="7" Width="619" Direction="EW" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="230" Canvas.Top="224"/><c:PipeLine x:Name="middle2" Panel.ZIndex="3" Canvas.Left="164" Canvas.Top="139.5"   Direction="{Binding WaterDirection2}"   Height="7" Width="185" CapRadius="3"><c:PipeLine.RenderTransform><TransformGroup><RotateTransform Angle="90" ></RotateTransform></TransformGroup></c:PipeLine.RenderTransform></c:PipeLine><c:PipeLine Height="7" Width="399" Direction="{Binding WaterDirection2}" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="450" Canvas.Top="296"  /><c:PipeLine x:Name="right" Panel.ZIndex="3" Margin="0" Canvas.Left="223" Canvas.Top="302" Width="131" Direction="{Binding WaterDirection32}"  Height="7" CapRadius="1"><c:PipeLine.RenderTransform><TransformGroup><TranslateTransform X="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Canvas}, Path=ActualHeight}" Y="0"></TranslateTransform><RotateTransform Angle="90" CenterX="{Binding RelativeSource={RelativeSource Mode=FindAncestor, AncestorType=Canvas}, Path=ActualHeight}" CenterY="0"></RotateTransform></TransformGroup></c:PipeLine.RenderTransform></c:PipeLine><c:PipeLine Height="7" Width="79" Direction="{Binding WaterDirection3}" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="640" Canvas.Top="426"  /><c:PipeLine Height="7" Width="79" Direction="{Binding WaterDirection3}" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="540" Canvas.Top="447"  /><c:PipeLine Height="7.5"  Width="409" Direction="{Binding WaterDirection1}"  HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="10" Canvas.Top="137"/><c:PipeLine Height="7.5"  Width="259" Direction="{Binding WaterDirection2}" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="158" Canvas.Top="317"/><c:PipeLine Height="7.5"  Width="459" Direction="{Binding WaterDirection3}" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="10" Canvas.Top="447"/><c:PipeLine Height="7.5" Width="399" Direction="{Binding WaterDirection1}" HorizontalAlignment="Left" VerticalAlignment="Center" Canvas.Left="450" Canvas.Top="116"/><!--图片--><Image Source="../Assets/Images/d1.jpg" Canvas.Left="35" Canvas.Top="29" Height="39" Width="61" HorizontalAlignment="Center" VerticalAlignment="Top"/><Image Source="../Assets/Images/d1.jpg" Canvas.Left="755" Canvas.Top="29" Height="39" Width="61" HorizontalAlignment="Center" VerticalAlignment="Top"/><Image Source="../Assets/Images/d1.jpg" Canvas.Left="755" Canvas.Top="279" Height="39" Width="61" HorizontalAlignment="Center" VerticalAlignment="Top"/><Image Source="../Assets/Images/d1.jpg" Panel.ZIndex="3" Canvas.Left="95" Canvas.Top="429" Height="39" Width="61" HorizontalAlignment="Center" VerticalAlignment="Top"/><Image Source="../Assets/Images/heat_exchange.jpg" Panel.ZIndex="2" Canvas.Left="264" Canvas.Top="20" Height="156" Width="80" HorizontalAlignment="Center" VerticalAlignment="Top"/><Image Source="../Assets/Images/heat_exchange.jpg" Panel.ZIndex="2" Canvas.Left="264" Canvas.Top="200" Height="156" Width="80" HorizontalAlignment="Center" VerticalAlignment="Top"/><Image Source="../Assets/Images/i2.jpg" Canvas.Left="164" Canvas.Top="13" Height="31" Width="25" HorizontalAlignment="Left" VerticalAlignment="Top"/><Image Source="../Assets/Images/i2.jpg" Canvas.Left="424" Canvas.Top="13" Height="31" Width="25" HorizontalAlignment="Left" VerticalAlignment="Top"/><Image Source="../Assets/Images/i2.jpg" Canvas.Left="524" Canvas.Top="85" Height="31" Width="25" HorizontalAlignment="Left" VerticalAlignment="Top"/><Image Source="../Assets/Images/i2.jpg" Canvas.Left="684" Canvas.Top="193" Height="31" Width="25" HorizontalAlignment="Left" VerticalAlignment="Top"/><Image Source="../Assets/Images/i2.jpg" Canvas.Left="584" Canvas.Top="265" Height="31" Width="25" HorizontalAlignment="Left" VerticalAlignment="Top"/><Image Source="../Assets/Images/f2.jpg" Panel.ZIndex="2" Canvas.Left="64" Canvas.Top="115" Height="33" Width="34" HorizontalAlignment="Left" VerticalAlignment="Top"/><Image Source="../Assets/Images/f2.jpg" Panel.ZIndex="2" Canvas.Left="224" Canvas.Top="425" Height="33" Width="34" HorizontalAlignment="Left" VerticalAlignment="Top"/><!--3个水泵--><c:Pump Width="42" Height="38" IsRunning="{Binding Pump1State}" Canvas.Left="411" Canvas.Top="111" HorizontalAlignment="Center" VerticalAlignment="Top"/><c:Pump Width="42" Height="38" IsRunning="{Binding Pump2State}" Canvas.Left="411" Canvas.Top="291" HorizontalAlignment="Center" VerticalAlignment="Top"/><c:Pump Width="42" Height="38" IsRunning="{Binding Pump3State}" Canvas.Left="611" Canvas.Top="421" HorizontalAlignment="Center" VerticalAlignment="Top"/><!--数据看板--><c:DataBoard Width="75" Height="40" Canvas.Left="30" Canvas.Top="71" ItemsSource="{Binding MainData.MomentDataList1}"/><c:DataBoard Width="75" Height="40" Canvas.Left="135" Canvas.Top="56" ItemsSource="{Binding MainData.MomentDataList1}"/><c:DataBoard Width="75" Height="40" Canvas.Left="545" Canvas.Top="71" ItemsSource="{Binding MainData.MomentDataList1}"/><c:DataBoard Width="75" Height="40" Canvas.Left="495" Canvas.Top="252" ItemsSource="{Binding MainData.MomentDataList2}"/> <c:DataBoard Width="75" Height="40" Canvas.Left="595" Canvas.Top="178" ItemsSource="{Binding MainData.MomentDataList2}"/> <c:DataBoard Width="75" Height="40" Canvas.Left="90" Canvas.Top="383" ItemsSource="{Binding MainData.MomentDataList3}"/><c:CoolingTower  RunningState="Normal" Width="140" Height="150"  Canvas.Left="415" Canvas.Top="347"></c:CoolingTower></Canvas></Border></DockPanel></Window>