PROMS/Volian.Controls.Library/DisplayRO.cs

@@ -12,6 +12,7 @@ namespace Volian.Controls.Library
 	public partial class DisplayRO : UserControl
 	{
 		#region Properties
+		private ROFST _CurROFST = null;
 		private ROFST _MyROFST;
 		public ROFST MyROFST
 		{
@@ -22,12 +23,21 @@ namespace Volian.Controls.Library
 				LoadTree();
 			}
 		}
-		private bool _Modify = false;
-		public bool Modify
+		private string _CurROLink;
+		public string CurROLink
 		{
-			get { return _Modify; }
-			set { _Modify = value; }
+			get { return _CurROLink; }
+			set
+			{
+				_CurROLink = value;
+				if (_CurROLink != null)
+				{
+					UpdateROTree();
+					_SavCurROLink = _CurROLink;
+				}
+			}
 		}
+		private string _SavCurROLink;
 		private ItemInfo _CurItem;
 		public ItemInfo CurItem
 		{
@@ -35,7 +45,6 @@ namespace Volian.Controls.Library
 			set { _CurItem = value; }
 		}
 		private DisplayRTB _MyRTB;
-
 		public DisplayRTB MyRTB
 		{
 			get { return _MyRTB; }
@@ -47,15 +56,14 @@ namespace Volian.Controls.Library
 		{
 			InitializeComponent();
 		}
-		public DisplayRO(ROFST rofst, ItemInfo curitm, bool modify, DisplayRTB rtb)
-		{
-			_MyROFST = rofst;
-			_CurItem = curitm;
-			_Modify = modify;
-			_MyRTB = rtb;
-			InitializeComponent();
-			LoadTree();
-		}
+		//public DisplayRO(ROFST rofst, ItemInfo curitm, bool modify, DisplayRTB rtb)
+		//{
+		//    _MyROFST = rofst;
+		//    _CurItem = curitm;
+		//    _MyRTB = rtb;
+		//    InitializeComponent();
+		//    LoadTree();
+		//}
 		#endregion
 		#region Events
 		private void tvROFST_AfterSelect(object sender, TreeViewEventArgs e)
@@ -77,6 +85,7 @@ namespace Volian.Controls.Library
 		private void LoadChildren(TreeNode tn)
 		{
 			object tag = tn.Tag;
+			if (tn.FirstNode != null && tn.FirstNode.Text != "VLN_DUMMY_FOR_TREE") return;  // already loaded.
 			if (tn.FirstNode != null && tn.FirstNode.Text == "VLN_DUMMY_FOR_TREE") tn.FirstNode.Remove();
 			ROFST.rochild[] chld = null;
 
@@ -125,6 +134,8 @@ namespace Volian.Controls.Library
 		private void LoadTree()
 		{
 			if (_MyROFST == null) return;
+			if (_MyROFST == _CurROFST) return;
+			_CurROFST = _MyROFST;
 			for (int i = 0; i < _MyROFST.myHdr.myDbs.Length; i++)
 			{
 				TreeNode tn = new TreeNode(_MyROFST.myHdr.myDbs[i].dbiTitle);
@@ -141,7 +152,63 @@ namespace Volian.Controls.Library
 				tn.Nodes.Add(tmp);
 			}
 		}
-		private void btnInsertRO_Click(object sender, EventArgs e)
+		private void UpdateROTree()
+		{
+			// walk down from root of tree, expanding values in the string
+			// that represents the ro link.
+			string tmpstr = _CurROLink;
+			int sp = tmpstr.IndexOf(" ");	// because parse of ro info is wrong!!
+			int rousageid = System.Convert.ToInt32(tmpstr.Substring(0, sp));
+			string roid = tmpstr.Substring(sp + 1, tmpstr.Length - sp - 1);
+			string db = roid.Substring(0, 4);
+
+			ROFST.rochild rochld = MyROFST.GetRoChild(roid.Substring(0, 12).ToUpper());
+			// use this to walk up tree until database - this is used to expand tree.
+			List<int> path = new List<int>();
+			int myid = rochld.ID;
+			while (myid > 0)
+			{
+				path.Insert(0,myid);
+				myid = rochld.ParentID;
+				rochld = MyROFST.GetRoChildFromID(myid);
+				if (rochld.ID == -1) myid = -1;
+			}
+			TreeNode tnExpand = null;
+			int titm = System.Convert.ToInt32(db);
+			// find database first
+			foreach (TreeNode tn in tvROFST.Nodes)
+			{
+				ROFST.rodbi thisdb = (ROFST.rodbi)tn.Tag;
+				if (thisdb.dbiID == titm)
+				{
+					LoadChildren(tn);
+					tnExpand = tn;
+					break;
+				}
+			}
+			if (tnExpand == null) return;  // something went wrong?
+			// use the path id list to load/find the treeview's nodes.
+			foreach (int citm in path)
+			{
+				if (citm != System.Convert.ToInt32(db))
+				{
+					LoadChildren(tnExpand);
+					tnExpand.Expand();
+					foreach (TreeNode tn in tnExpand.Nodes)
+					{
+						ROFST.rochild chld = (ROFST.rochild)tn.Tag;
+						if (chld.ID == citm)
+						{
+							tnExpand = tn;
+							break;
+						}
+					}
+				}
+			}
+
+			if (tnExpand != null) tvROFST.SelectedNode = tnExpand;
+		}
+		private void btnSaveRO_Click(object sender, EventArgs e)
 		{
 			if (tbROValue.Text == null || tbROValue.Text == "")
 			{
@@ -157,5 +224,11 @@ namespace Volian.Controls.Library
 			}
 		}
 		#endregion
+
+		private void btnCancelRO_Click(object sender, EventArgs e)
+		{
+			_CurROLink = _SavCurROLink;
+			UpdateROTree();
+		}
 	}
 }