diff --git a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/AttrributesListViewCtrl.cs b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/AttrributesListViewCtrl.cs
index 825016d..4ee2569 100644
--- a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/AttrributesListViewCtrl.cs
+++ b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/AttrributesListViewCtrl.cs
@@ -109,6 +109,13 @@ namespace Opc.Ua.Client.Controls
         {
             AttributesLV.Items.Clear();
 
+
+            // effettua check preliminarei folder out...
+            string outPath = Path.Combine(Directory.GetCurrentDirectory(), "trace");
+            string expFile = Path.Combine(outPath, $"{nodeId}.txt".Replace("=", "_").Replace(";", "_"));
+            Directory.CreateDirectory(outPath);
+            StringBuilder sb = new StringBuilder();
+
             if (NodeId.IsNull(nodeId))
             {
                 return;
@@ -177,6 +184,17 @@ namespace Opc.Ua.Client.Controls
 
                 // display in list.
                 AttributesLV.Items.Add(item);
+
+                // accoda in scrittura
+                StringBuilder sbr = new StringBuilder();
+                foreach (var sItem in item.SubItems)
+                {
+                    var currItem = sItem.ToString();
+                    sbr.Append($" | {currItem.Replace("ListViewSubItem: ", "").Replace("{", "").Replace("}", "")}");
+                }
+                // sistemo la riga...
+                string newRow = $"{sbr}";
+                sb.AppendLine(newRow.Substring(3, newRow.Length - 3));
             }
 
             if (showProperties)
@@ -190,15 +208,7 @@ namespace Opc.Ua.Client.Controls
                 AttributesLV.Columns[ii].Width = -2;
             }
 
-            // effettua print proprietà...
-            string outPath = Path.Combine(Directory.GetCurrentDirectory(), "hist");
-            string expFile = Path.Combine(outPath, $"{nodeId}.txt".Replace("=", "_").Replace(";", "_"));
-            Directory.CreateDirectory(outPath);
-            StringBuilder sb = new StringBuilder();
-            foreach (var item in AttributesLV.Items)
-            {
-                sb.AppendLine($"{item}");
-            }
+            // export finale su file proprietà...
             string nodeData = sb.ToString();
             File.WriteAllText(expFile, nodeData);
         }
diff --git a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseNodeCtrl.cs b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseNodeCtrl.cs
index 9ebdc02..23f5f03 100644
--- a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseNodeCtrl.cs
+++ b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseNodeCtrl.cs
@@ -180,6 +180,14 @@ namespace Opc.Ua.Client.Controls
             add { BrowseCTRL.AfterSelect += value; }
             remove { BrowseCTRL.AfterSelect -= value; } 
         }
+
+        /// <summary>
+        /// effettua espansione di ogni nodo dell'albero
+        /// </summary>
+        public void expandAll()
+        {
+            BrowseCTRL.expandAll();
+        }
         #endregion
 
         #region Private Methods
diff --git a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.Designer.cs b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.Designer.cs
index 9879d0e..2294d54 100644
--- a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.Designer.cs
+++ b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.Designer.cs
@@ -88,6 +88,7 @@ namespace Opc.Ua.Client.Controls
             this.BrowseTV.TabIndex = 2;
             this.BrowseTV.BeforeExpand += new System.Windows.Forms.TreeViewCancelEventHandler(this.BrowseTV_BeforeExpand);
             this.BrowseTV.AfterSelect += new System.Windows.Forms.TreeViewEventHandler(this.BrowseTV_AfterSelect);
+            this.BrowseTV.AfterExpand += new System.Windows.Forms.TreeViewEventHandler(this.BrowseTV_AfterSelect);
             // 
             // BrowseTreeViewCtrl
             // 
diff --git a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.cs b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.cs
index 341f2aa..411695f 100644
--- a/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.cs
+++ b/IOB-OPC-UA/Applications/ClientControls.Net4/Common/Client/BrowseTreeViewCtrl.cs
@@ -188,6 +188,12 @@ namespace Opc.Ua.Client.Controls
             }
         }
 
+        public void expandAll()
+        {
+            // parto dal primo nodo...
+            BrowseTV.SelectedNode.ExpandAll();
+        }
+
         /// <summary>
         /// Returns the child node at the specified index.
         /// </summary>
diff --git a/IOB-OPC-UA/Applications/ReferenceClient/MainForm.Designer.cs b/IOB-OPC-UA/Applications/ReferenceClient/MainForm.Designer.cs
index 036bcf9..3b643be 100644
--- a/IOB-OPC-UA/Applications/ReferenceClient/MainForm.Designer.cs
+++ b/IOB-OPC-UA/Applications/ReferenceClient/MainForm.Designer.cs
@@ -70,12 +70,13 @@ namespace Quickstarts.ReferenceClient
             this.HelpMI = new System.Windows.Forms.ToolStripMenuItem();
             this.Help_ContentsMI = new System.Windows.Forms.ToolStripMenuItem();
             this.StatusBar = new System.Windows.Forms.StatusStrip();
+            this.toolStripProgressBar1 = new System.Windows.Forms.ToolStripProgressBar();
+            this.tsslAppVers = new System.Windows.Forms.ToolStripStatusLabel();
             this.ConnectServerCTRL = new Opc.Ua.Client.Controls.ConnectServerCtrl();
             this.BrowseCTRL = new Opc.Ua.Client.Controls.BrowseNodeCtrl();
             this.clientHeaderBranding1 = new Opc.Ua.Client.Controls.HeaderBranding();
-            this.tsslAppVers = new System.Windows.Forms.ToolStripStatusLabel();
-            this.toolStripProgressBar1 = new System.Windows.Forms.ToolStripProgressBar();
             this.timerUI = new System.Windows.Forms.Timer(this.components);
+            this.scanDataToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.MenuBar.SuspendLayout();
             this.StatusBar.SuspendLayout();
             this.SuspendLayout();
@@ -95,7 +96,8 @@ namespace Quickstarts.ReferenceClient
             // fileToolStripMenuItem
             // 
             this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
-            this.exitToolStripMenuItem});
+            this.exitToolStripMenuItem,
+            this.scanDataToolStripMenuItem});
             this.fileToolStripMenuItem.Name = "fileToolStripMenuItem";
             this.fileToolStripMenuItem.Size = new System.Drawing.Size(37, 20);
             this.fileToolStripMenuItem.Text = "&File";
@@ -103,7 +105,7 @@ namespace Quickstarts.ReferenceClient
             // exitToolStripMenuItem
             // 
             this.exitToolStripMenuItem.Name = "exitToolStripMenuItem";
-            this.exitToolStripMenuItem.Size = new System.Drawing.Size(93, 22);
+            this.exitToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
             this.exitToolStripMenuItem.Text = "E&xit";
             this.exitToolStripMenuItem.Click += new System.EventHandler(this.ExitToolStripMenuItem_Click);
             // 
@@ -120,21 +122,21 @@ namespace Quickstarts.ReferenceClient
             // Server_DiscoverMI
             // 
             this.Server_DiscoverMI.Name = "Server_DiscoverMI";
-            this.Server_DiscoverMI.Size = new System.Drawing.Size(133, 22);
+            this.Server_DiscoverMI.Size = new System.Drawing.Size(180, 22);
             this.Server_DiscoverMI.Text = "Discover...";
             this.Server_DiscoverMI.Click += new System.EventHandler(this.Server_DiscoverMI_Click);
             // 
             // Server_ConnectMI
             // 
             this.Server_ConnectMI.Name = "Server_ConnectMI";
-            this.Server_ConnectMI.Size = new System.Drawing.Size(133, 22);
+            this.Server_ConnectMI.Size = new System.Drawing.Size(180, 22);
             this.Server_ConnectMI.Text = "Connect";
             this.Server_ConnectMI.Click += new System.EventHandler(this.Server_ConnectMI_Click);
             // 
             // Server_DisconnectMI
             // 
             this.Server_DisconnectMI.Name = "Server_DisconnectMI";
-            this.Server_DisconnectMI.Size = new System.Drawing.Size(133, 22);
+            this.Server_DisconnectMI.Size = new System.Drawing.Size(180, 22);
             this.Server_DisconnectMI.Text = "Disconnect";
             this.Server_DisconnectMI.Click += new System.EventHandler(this.Server_DisconnectMI_Click);
             // 
@@ -163,6 +165,17 @@ namespace Quickstarts.ReferenceClient
             this.StatusBar.Size = new System.Drawing.Size(884, 22);
             this.StatusBar.TabIndex = 2;
             // 
+            // toolStripProgressBar1
+            // 
+            this.toolStripProgressBar1.Name = "toolStripProgressBar1";
+            this.toolStripProgressBar1.Size = new System.Drawing.Size(100, 16);
+            // 
+            // tsslAppVers
+            // 
+            this.tsslAppVers.Name = "tsslAppVers";
+            this.tsslAppVers.Size = new System.Drawing.Size(12, 17);
+            this.tsslAppVers.Text = "-";
+            // 
             // ConnectServerCTRL
             // 
             this.ConnectServerCTRL.Configuration = null;
@@ -211,16 +224,12 @@ namespace Quickstarts.ReferenceClient
             this.clientHeaderBranding1.Size = new System.Drawing.Size(884, 75);
             this.clientHeaderBranding1.TabIndex = 7;
             // 
-            // tsslAppVers
+            // scanDataToolStripMenuItem
             // 
-            this.tsslAppVers.Name = "tsslAppVers";
-            this.tsslAppVers.Size = new System.Drawing.Size(12, 17);
-            this.tsslAppVers.Text = "-";
-            // 
-            // toolStripProgressBar1
-            // 
-            this.toolStripProgressBar1.Name = "toolStripProgressBar1";
-            this.toolStripProgressBar1.Size = new System.Drawing.Size(100, 16);
+            this.scanDataToolStripMenuItem.Name = "scanDataToolStripMenuItem";
+            this.scanDataToolStripMenuItem.Size = new System.Drawing.Size(180, 22);
+            this.scanDataToolStripMenuItem.Text = "&Scan Data";
+            this.scanDataToolStripMenuItem.Click += new System.EventHandler(this.scanDataToolStripMenuItem_Click);
             // 
             // MainForm
             // 
@@ -263,5 +272,6 @@ namespace Quickstarts.ReferenceClient
         private System.Windows.Forms.ToolStripProgressBar toolStripProgressBar1;
         private System.Windows.Forms.ToolStripStatusLabel tsslAppVers;
         private System.Windows.Forms.Timer timerUI;
+        private System.Windows.Forms.ToolStripMenuItem scanDataToolStripMenuItem;
     }
 }
diff --git a/IOB-OPC-UA/Applications/ReferenceClient/MainForm.cs b/IOB-OPC-UA/Applications/ReferenceClient/MainForm.cs
index 45e1b73..f9b9e13 100644
--- a/IOB-OPC-UA/Applications/ReferenceClient/MainForm.cs
+++ b/IOB-OPC-UA/Applications/ReferenceClient/MainForm.cs
@@ -222,5 +222,11 @@ namespace Quickstarts.ReferenceClient
         }
 
         #endregion Private Methods
+
+        private void scanDataToolStripMenuItem_Click(object sender, EventArgs e)
+        {
+            // effettua selezione di ogni nodo dell'albero x esportare...
+            BrowseCTRL.expandAll();
+        }
     }
 }