更新

WindowsFormsApp6/MainForm.cs

@@ -297,69 +297,151 @@ namespace WindowsFormsApp6
 
         /// <summary>
         /// 读取Form1数据（液体吸收时间）
-        /// PLC地址：D200 - 时间(s)
+        /// PLC地址：D200 - 时间(s)，每次测试读取1个试样（2个字节，1个寄存器）
         /// 信号量：M103
+        /// 每次测试添加一个试样，试样数量动态增长
         /// </summary>
         private void ReadForm1Data(byte slaveId)
         {
             try
             {
-                // 读取D200寄存器（时间数据）
+                // 每次只读取1个寄存器（1个试样的数据）
-                // 假设有5个试样，每个试样1个时间值
+                ushort[] registers = _modbusMaster.ReadHoldingRegisters(slaveId, 200, 1);
-                ushort[] registers = _modbusMaster.ReadHoldingRegisters(slaveId, 200, 5);
 
                 // 使用反射获取Form1的私有字段
                 var sampleDataTableField = form1Instance.GetType()
                     .GetField("sampleDataTable", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
                 
-                if (sampleDataTableField != null)
+                var currentSampleCountField = form1Instance.GetType()
+                    .GetField("currentSampleCount", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
+                
+                if (sampleDataTableField != null && currentSampleCountField != null)
                 {
                     DataTable dataTable = sampleDataTableField.GetValue(form1Instance) as DataTable;
+                    int currentSampleCount = (int)currentSampleCountField.GetValue(form1Instance);
                     
                     if (dataTable != null)
                     {
-                        // 清除旧的平均值行
+                        // 移除旧的平均值行
                         var avgRows = dataTable.Select("序号 = '平均时间(s)'");
                         foreach (var row in avgRows)
                         {
                             dataTable.Rows.Remove(row);
                         }
 
-                        // 创建新数据行
+                        // 获取所有现有的时间行
+                        var timeRows = dataTable.AsEnumerable()
+                            .Where(r => r.Field<string>("序号") == "时间(s)")
+                            .ToList();
+
+                        // 计算当前已有的试样数量
+                        int existingSampleCount = timeRows.Count;
+                        int newSampleIndex = existingSampleCount + 1;
+
+                        // 如果新试样索引超过当前列数，需要动态添加列
+                        if (newSampleIndex > currentSampleCount)
+                        {
+                            // 动态扩展DataTable列
+                            if (!dataTable.Columns.Contains($"试样{newSampleIndex}"))
+                            {
+                                dataTable.Columns.Add($"试样{newSampleIndex}", typeof(double));
+                            }
+
+                            // 更新currentSampleCount
+                            currentSampleCountField.SetValue(form1Instance, newSampleIndex);
+                            currentSampleCount = newSampleIndex;
+
+                            // 重新初始化DataGridView以显示新列
+                            this.Invoke(new Action(() =>
+                            {
+                                var initMethod = form1Instance.GetType()
+                                    .GetMethod("InitializeDataGridView", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Instance);
+                                initMethod?.Invoke(form1Instance, null);
+                            }));
+                        }
+
+                        // 创建新数据行（添加新试样）
                         DataRow dataRow = dataTable.NewRow();
                         dataRow["序号"] = "时间(s)";
                         
-                        // 填充时间数据（将寄存器值转换为实际时间，假设寄存器值为整数秒*10）
+                        // 将新读取的时间值转换并填充到对应的试样列
-                        for (int i = 0; i < Math.Min(registers.Length, 5); i++)
+                        double timeValue = registers[0] / 10.0; // 转换为秒
+                        dataRow[$"试样{newSampleIndex}"] = timeValue;
+                        
+                        // 其他列设置为空
+                        for (int i = 1; i < newSampleIndex; i++)
                         {
-                            double timeValue = registers[i] / 10.0; // 转换为秒
+                            if (dataTable.Columns.Contains($"试样{i}"))
-                            dataRow[$"试样{i + 1}"] = timeValue;
+                            {
+                                dataRow[$"试样{i}"] = DBNull.Value;
+                            }
                         }
                         
+                        // 添加新数据行
                         dataTable.Rows.Add(dataRow);
 
-                        // 计算并添加平均值行
+                        // 重新获取所有时间行（包括刚添加的）
-                        double totalAvg = 0;
+                        timeRows = dataTable.AsEnumerable()
-                        int count = 0;
+                            .Where(r => r.Field<string>("序号") == "时间(s)")
-                        for (int i = 0; i < Math.Min(registers.Length, 5); i++)
+                            .ToList();
+
+                        // 计算平均值：每5个试样计算一次平均值
+                        int totalSamples = timeRows.Count;
+                        int groupCount = (int)Math.Ceiling(totalSamples / 5.0);
+                        
+                        for (int groupIndex = 0; groupIndex < groupCount; groupIndex++)
                         {
-                            totalAvg += registers[i] / 10.0;
+                            int startSample = groupIndex * 5 + 1;
-                            count++;
+                            int endSample = Math.Min(startSample + 4, totalSamples);
+
+                            // 计算该组的平均值
+                            double groupSum = 0;
+                            int validCount = 0;
+
+                            for (int i = startSample; i <= endSample; i++)
+                            {
+                                var row = timeRows[i - 1]; // 索引从0开始
+                                
+                                // 找到该行中有值的列
+                                for (int col = 1; col <= currentSampleCount; col++)
+                                {
+                                    if (dataTable.Columns.Contains($"试样{col}") && 
+                                        row[$"试样{col}"] != DBNull.Value)
+                                    {
+                                        double value = Convert.ToDouble(row[$"试样{col}"]);
+                                        if (value > 0)
+                                        {
+                                            groupSum += value;
+                                            validCount++;
+                                            break; // 每行只取一个有效值
+                                        }
+                                    }
+                                }
                             }
 
-                        if (count > 0)
+                            if (validCount > 0)
                             {
+                                double groupAvg = groupSum / validCount;
+
+                                // 创建平均值行
                                 DataRow avgRow = dataTable.NewRow();
                                 avgRow["序号"] = "平均时间(s)";
-                            avgRow["试样1"] = totalAvg / count;
                                 
-                            for (int i = 2; i <= 5; i++)
+                                // 将平均值显示在该组的第一个试样列
+                                avgRow[$"试样{startSample}"] = groupAvg;
+                                
+                                // 其他列设置为空
+                                for (int i = 1; i <= currentSampleCount; i++)
+                                {
+                                    if (i != startSample && dataTable.Columns.Contains($"试样{i}"))
                                     {
                                         avgRow[$"试样{i}"] = DBNull.Value;
                                     }
+                                }
                                 
                                 dataTable.Rows.Add(avgRow);
                             }
+                        }
 
                         // 刷新显示
                         dataTable.AcceptChanges();
@@ -373,7 +455,7 @@ namespace WindowsFormsApp6
                     }
                 }
 
-                System.Diagnostics.Debug.WriteLine($"Form1数据读取成功：{registers.Length}个寄存器");
+                System.Diagnostics.Debug.WriteLine($"Form1数据读取成功：试样 #{timeRows.Count + 1}");
             }
             catch (Exception ex)
             {