io修改限制

View/InOutView.xaml.cs

@@ -56,6 +56,7 @@ namespace DyeingComputer.View
         {
 
         }
+
         private void Grid_D_BeginningEdit(object sender, DataGridBeginningEditEventArgs e)
         {
             MainWindowViewModel.D_view = false;
@@ -76,13 +77,16 @@ namespace DyeingComputer.View
         }
         private void Grid_D_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e)
         {
-            string newValue = (e.EditingElement as TextBox).Text;//获得输入单元格信息         
-            Dictionary<string, object> datagrid_v = new Dictionary<string, object>();//缓存函数
-            datagrid_v.Add("PLC", newValue);
-            // SQLiteHelpers = new SQLiteHelper(DBAddress); //数据库连接路径
-            // SQLiteHelpers.Open();  //打开数据库
-            MainWindow.SQLiteHelpers.Update("IOName", datagrid_v, "ID ='" + ID + "'", null);//更新
-            //SQLiteHelpers.Close();//关闭数据库
+            string newValue = (e.EditingElement as TextBox).Text;//获得输入单元格信息
+            if (newValue.Count() == 4)
+            {
+                Dictionary<string, object> datagrid_v = new Dictionary<string, object>();//缓存函数
+                datagrid_v.Add("PLC", newValue);
+                // SQLiteHelpers = new SQLiteHelper(DBAddress); //数据库连接路径
+                // SQLiteHelpers.Open();  //打开数据库
+                MainWindow.SQLiteHelpers.Update("IOName", datagrid_v, "ID ='" + ID + "'", null);//更新
+                                                                                                //SQLiteHelpers.Close();//关闭数据库
+            }
             MainWindowViewModel.SQL_data();//重新获得io表
             MainWindowViewModel.D_view = true;
         }
@@ -108,13 +112,15 @@ namespace DyeingComputer.View
         private void Grid_A_CellEditEnding(object sender, DataGridCellEditEndingEventArgs e)
         {
             string newValue = (e.EditingElement as TextBox).Text;//获得输入单元格信息
-            Dictionary<string, object> datagrid_v = new Dictionary<string, object>();//缓存函数
-            datagrid_v.Add("PLC", newValue);
-            //SQLiteHelpers = new SQLiteHelper(DBAddress); //数据库连接路径
-            //SQLiteHelpers.Open();  //打开数据库
-            MainWindow.SQLiteHelpers.Update("IOName", datagrid_v, "ID ='" + ID + "'", null);//更新                                                                                            
-            //SQLiteHelpers.Close();//关闭数据库
-
+            if (newValue.Count() == 4)
+            {
+                Dictionary<string, object> datagrid_v = new Dictionary<string, object>();//缓存函数
+                datagrid_v.Add("PLC", newValue);
+                //SQLiteHelpers = new SQLiteHelper(DBAddress); //数据库连接路径
+                //SQLiteHelpers.Open();  //打开数据库
+                MainWindow.SQLiteHelpers.Update("IOName", datagrid_v, "ID ='" + ID + "'", null);//更新                                                                                            
+                                                                                                //SQLiteHelpers.Close();//关闭数据库
+            }
             MainWindowViewModel.SQL_data();//重新获得io表
             MainWindowViewModel.A_view = true;
         }