信息栏增加异常显示红色

MainWindow.xaml

@@ -117,7 +117,7 @@
                      IsReadOnly="True" IsUndoEnabled="False" MaxLines="1" IsEnabled="False"/>
             <TextBox Text="{Binding Status_Str}" HorizontalAlignment="Center" Height="50" Margin="0,0,0,0" 
                      TextWrapping="Wrap" VerticalAlignment="Top" Width="700" FontSize="35" 
-                     Background="{x:Null}" BorderBrush="{x:Null}" SelectionBrush="{x:Null}" 
+                     Background="{x:Null}" BorderBrush="{x:Null}" SelectionBrush="{x:Null}" Foreground="{Binding Status_Str_coloer}"
                      IsReadOnly="True" IsUndoEnabled="False" MaxLines="1" IsEnabled="False"/>
             <TextBox Text="{Binding Sys_Time}" HorizontalAlignment="Right" Height="50" Margin="0,0,5,0" 
                      TextWrapping="Wrap" VerticalAlignment="Top" Width="150" FontSize="20" 

UserClass/ERRinf.cs

@@ -38,8 +38,9 @@ namespace DyeingComputer.UserClass
         public static int i=0;
         public static string ERRinf_r(DataTable dataTable)//读取
         {
-            if (i >= dataTable.Rows.Count) { i = 0; } else { i++; }
+            if (i < 0) { i = dataTable.Rows.Count - 1; }
             string index = dataTable.Rows[i].Field<string>("INF");
+            i--;
             return index;
         }
     }

ViewModel/MainWindowViewModel.cs

@@ -1,37 +1,38 @@
-using System;
-using System.Collections.Generic;
-using System.ComponentModel;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
+using CommonServiceLocator;
 using CommunityToolkit.Mvvm.ComponentModel;
-using CommonServiceLocator;
-using System.Windows.Threading;
-using static DyeingComputer.UserClass.SqliteHelper;
-using System.Data;
-using System.Collections.ObjectModel;
-using DyeingComputer.View;
-using System.Windows;
+using CommunityToolkit.Mvvm.Input;
+using DyeingComputer.Properties;
 using DyeingComputer.UserClass;
-using System.Reflection;
-using System.Windows.Documents;
-using System.Runtime.CompilerServices;
+using DyeingComputer.View;
+using Microsoft.Win32;
 using NModbus;
 using NModbus.Serial;
-using System.IO.Ports;
 using OpenTK.Graphics.ES11;
-using DyeingComputer.Properties;
-using Microsoft.Win32;
-using static DyeingComputer.Windows.ViewStep;
-using System.Windows.Media;
-using System.Runtime.Remoting.Channels;
+using System;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.ComponentModel;
+using System.Data;
 using System.Diagnostics.Eventing.Reader;
+using System.Drawing;
 using System.IO;
+using System.IO.Ports;
+using System.Linq;
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Runtime.Remoting.Channels;
+using System.Text;
 using System.Threading;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Threading;
 using TouchSocket.Sockets;
+using static DyeingComputer.UserClass.SqliteHelper;
+using static DyeingComputer.Windows.ViewStep;
 using static System.Windows.Forms.VisualStyles.VisualStyleElement.Button;
-using System.Windows.Input;
-using CommunityToolkit.Mvvm.Input;
 
 
 namespace DyeingComputer.ViewModel
@@ -61,6 +62,8 @@ namespace DyeingComputer.ViewModel
 
     public class MainWindowViewModel : ViewModelBase
     {
+        System.Windows.Media.Brush Status_red = new SolidColorBrush() { Color = System.Windows.Media.Color.FromArgb(255, 255, 0, 0) };
+        System.Windows.Media.Brush Status_Black = new SolidColorBrush() { Color = System.Windows.Media.Color.FromArgb(255, 0, 0, 0) };
         private static SQLiteHelper SQLiteHelpers = null;  //定义数据库
         private readonly static string DBAddress = Environment.CurrentDirectory + "\\DataBase\\800COMPUTER.db";  //数据库路径
         private readonly string ChartAdress = Environment.CurrentDirectory + "\\DataBase\\Chart.db";  //数据库路径
@@ -116,6 +119,16 @@ namespace DyeingComputer.ViewModel
                 OnPropertyChanged("Link_bool");
             }
         }
+        System.Windows.Media.Brush Status_str_coloer;
+        public System.Windows.Media.Brush Status_Str_coloer
+        {
+            get => Status_str_coloer;
+            set
+            {
+                Status_str_coloer = value;
+                OnPropertyChanged("Status_Str_coloer");
+            }
+        }
         public string work_Temp;  //显示温度
         public string Work_Temp  //通知UI控件参数改变
         {
@@ -414,13 +427,14 @@ namespace DyeingComputer.ViewModel
             IO_view();
             TechnologicalProcess_view();
 
-            if (errTabler.Rows.Count!=0) 
+            if (errTabler.Rows.Count != 0)
             {
                 Status_Str = ERRinf.ERRinf_r(errTabler);
-
                 Alert_red = true;
                 Alert_bell = true;
+                Status_Str_coloer = Status_red;
             }
+            else { Status_Str_coloer = Status_Black; }
 
                 Updata_dtd("3001", Alert_red);
             Updata_dtd("3003", Alert_yellow);