DataView基本调试完成，还存在一些小错误和小功能缺失。

查询数据还不太流畅，考虑加入流水线工作模式。

FrameworkLocal/UIClient/CenterViews/DataLogs/Core/ParameterNode.cs

@@ -46,7 +46,7 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.Core
             _isUpdateSuspended = false;
 
             Name = name;
-            RawData = new List<ParameterNodePoint>();
+            //RawData = new List<ParameterNodePoint>();
             MaxTerminalSelectionAllowed = -1;
             ChildNodes = new ParameterNodeCollection(this);
             ChildNodes.TerminalNodeSelectionChanged += OnTerminalNodeSelectionChanged;
@@ -186,7 +186,7 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.Core
 
         public ParameterNode ParentNode { get; set; }
 
-        public List<ParameterNodePoint> RawData { get; }
+        //public List<ParameterNodePoint> RawData { get; }
 
         public Visibility IsVisibilityParentNode { get; set; }
 

FrameworkLocal/UIClient/CenterViews/DataLogs/Core/SicFastLineSeries.cs

@@ -4,6 +4,7 @@ using System;
 using System.ComponentModel;
 using System.Runtime.CompilerServices;
 using System.Windows.Media;
+using SciChart.Charting.Model.Filters;
 
 namespace MECF.Framework.UI.Client.CenterViews.DataLogs.Core
 {
@@ -29,8 +30,10 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.Core
             XAxisId = "DefaultAxisId";
             YAxisId = "DefaultAxisId";
 
-            var ds = new XyDataSeries<DateTime, double>();
+            DataSeries = new XyDataSeries<DateTime, double>
-            DataSeries = ds;
+            {
+                SeriesName = dataName
+            };
 
             DisplayName = displayName;
             DataName = dataName;
@@ -96,6 +99,12 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.Core
             }
         }
 
+        public double DataMin { get; }
+
+        public double DataMax { get; }
+
+        public double DataAverage { get; }
+
         #endregion
 
         #region Methods
@@ -120,12 +129,13 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.Core
                 for (var i = 0; i < ds.Count; i++)
                 {
                     var y = (ds.Metadata[i] as ParameterNodePoint)?.Value;
-                    if(y == null)
+                    if (y == null)
                         continue;
 
                     ds.Update(i, (double)y * _dataFactor + DataOffset);
                 }
 
+
                 //var dataSeries = DataSeries as XyDataSeries<DateTime, double>;
                 //for (var index = 0; index < dataSeries.Count; ++index)
                 //    dataSeries.Update(index, _queueRawData.ElementAt(index).Item2 * _dataFactor + _dataOffset);

FrameworkLocal/UIClient/CenterViews/DataLogs/DataHistory/DataViewModel.cs

@@ -228,27 +228,22 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
             foreach (var module in selectedModules)
             {
                 var selectedTerminal = module.Flatten(true).Where(x => x.IsSelected == true);
-
+                
                 foreach (var terminal in selectedTerminal)
                 {
-                    terminal.RawData.Clear();
-                    var line2D = new SicFastLineSeries(terminal.FullName)
-                    {
-                        AntiAliasing = true,
-                        ResamplingMode = ResamplingMode.MinMax
-                    };
-
                     // 确保当列队未空时不会出错，选择默认黑色。
                     var color = colorPattern.Any()
                         ? colorPattern.Dequeue()
                         : Color.FromArgb(255, colorRandom.Next(0, 255), colorRandom.Next(0, 255),
                             colorRandom.Next(0, 255));
 
-                    line2D.Stroke = System.Windows.Media.Color.FromRgb(color.R, color.G, color.B);
+                    var line2D = new SicFastLineSeries(terminal.FullName)
-
+                    {
-                    var ds = line2D.GetDataSeries();
+                        AntiAliasing = true,
-                    ds.Tag = terminal;
+                        ResamplingMode = ResamplingMode.MinMax,
-
+                        Stroke = System.Windows.Media.Color.FromRgb(color.R, color.G, color.B),
+                        Tag = terminal
+                    };
 
                     SelectedData.Add(line2D);
                 }
@@ -266,6 +261,21 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
                 if (e.Item1 == 100)
                 {
                     IsBusy = false;
+
+                    foreach (var renderableSeries in SelectedData)
+                    {
+                        var series = renderableSeries as SicFastLineSeries;
+                        var dataSeries = series?.GetDataSeries();
+                        if (series?.Tag is ParameterNode parameterNode && dataSeries!= null)
+                        {
+                            parameterNode.MaxValue = ((double)dataSeries.YMax).ToString("F2");
+                            parameterNode.MinValue = ((double)dataSeries.YMin).ToString("F2");
+                            parameterNode.AverageValue =
+                                dataSeries.Metadata.Cast<ParameterNodePoint>().Average(x => x.Value).ToString("F2");
+                        }
+                        
+
+                    }
                 }
 
                 BusyIndicatorContent = e.Item2;
@@ -556,7 +566,7 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
                     var dataSeries = line2D.GetDataSeries();*/
 
                     var dataSeries =
-                        dataSeriesList.FirstOrDefault(x => (x.Tag is ParameterNode node) && node.FullName == fullName);
+                        dataSeriesList.FirstOrDefault(x => x.SeriesName == fullName);
 
                     if (dataSeries == null)
                         continue;
@@ -564,9 +574,9 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
                     /*// ParameterNode放在line2D.DataSeries.Tag中，而不是line2D.Tag中，因为ParameterNode需要从Task中抛给seriesAppendDone
                     // 进行数据统计，但Task中无法访问line2D对象，因为跨线程访问问题。
                     dataSeries.Tag = node;*/
-                    var rawData = (dataSeries.Tag as ParameterNode)?.RawData;
+                    //var rawData = (dataSeries.Tag as ParameterNode)?.RawData;
-                    if(rawData == null)
+                    //if(rawData == null)
-                        continue;
+                    //    continue;
                     
 
                     #endregion
@@ -813,8 +823,8 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
 
                     for (var i = 0; i < SelectedData.Count; i++)
                     {
-                        var points = (((SelectedData[i] as SicFastLineSeries))?.GetDataSeries().Tag as ParameterNode)
+                        var points = ((SelectedData[i] as SicFastLineSeries))?.GetDataSeries().Metadata
-                            ?.RawData;
+                            .Cast<ParameterNodePoint>().ToList();
                         if (points != null)
                         {
                             foreach (var p in points)
@@ -840,10 +850,11 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
                         using (_cancellationTokenSource.Token.Register(Thread.CurrentThread.Abort))
                         {
                             var csvBuilder = new StringBuilder();
+                            csvBuilder.Append("Time,");
                             csvBuilder.AppendLine(string.Join(",", columns));
                             foreach (var tv in timeValue)
                             {
-                                csvBuilder.Append(tv.Key);
+                                csvBuilder.Append($" {tv.Key:yyyy/MM/dd HH:mm:ss.fff}");
                                 csvBuilder.Append(",");
                                 csvBuilder.AppendLine(string.Join(",", tv.Value));
 
@@ -945,8 +956,7 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
 #endif
 
 
-                    var node = cp?.GetDataSeries().Tag as ParameterNode;
+                    var points = cp?.GetDataSeries().Metadata.Cast<ParameterNodePoint>().ToList();
-                    var points = node?.RawData;
 
                     var csvBuilder = new StringBuilder();
 
@@ -959,14 +969,14 @@ namespace MECF.Framework.UI.Client.CenterViews.DataLogs.DataHistory
                             {
 
 #if EXPORT_TO_CSV
-                                csvBuilder.AppendLine($"Time,{node.FullName}"); // table header
+                                csvBuilder.AppendLine($"Time,{cp.DataName}"); // table header
 #endif
 
                                 foreach (var p in points)
                                 {
 
 #if EXPORT_TO_CSV
-                                    csvBuilder.AppendLine($"{p.Time},{p.Value}");
+                                    csvBuilder.AppendLine($" {p.Time:yyyy/MM/dd HH:mm:ss.fff},{p.Value}");
 #else
                             var row = ds.Tables[0].NewRow();
                             row[0] = p.Time;