C2021-059 - Moved updates to branch

PROMS/Volian.Controls.Library/vlnTreeView.cs

@@ -27,6 +27,7 @@ namespace Volian.Controls.Library
 	public delegate bool vlnTreeViewBoolEvent(object sender, vlnTreeEventArgs args);
 	public delegate bool vlnTreeViewItemInfoDeleteEvent(object sender, vlnTreeItemInfoEventArgs args);
 	public delegate bool vlnTreeViewItemInfoInsertEvent(object sender, vlnTreeItemInfoInsertEventArgs args);
+	public delegate bool vlnTreeViewItemInfoDeleteFolderEvent(object sender, vlnTreeFolderDeleteEventArgs args);
 	public delegate bool vlnTreeViewItemInfoPasteEvent(object sender, vlnTreeItemInfoPasteEventArgs args);
 	public delegate TreeNode vlnTreeViewTreeNodeEvent(object sender, vlnTreeEventArgs args);
 	public delegate DialogResult vlnTreeViewPropertyEvent(object sender, vlnTreePropertyEventArgs args);
@@ -220,6 +221,15 @@ namespace Volian.Controls.Library
 		}
 		#endregion
 	}
+	public class vlnTreeFolderDeleteEventArgs : EventArgs
+	{
+		public int FolderId { get; }
+
+		public vlnTreeFolderDeleteEventArgs(int folderId)
+		{
+			FolderId = folderId;
+		}
+	}
 	public enum E_InsertType {Before, After, Child};
 	public partial class vlnTreeItemInfoInsertEventArgs
 	{
@@ -427,6 +437,12 @@ namespace Volian.Controls.Library
 			if (DeleteItemInfo != null) return DeleteItemInfo(sender, args);
 			return false;
 		}
+		public event vlnTreeViewItemInfoDeleteFolderEvent DeleteFolder;
+		private bool OnDeleteFolder(object sender, vlnTreeFolderDeleteEventArgs args)
+		{
+			if (DeleteItemInfo != null) return DeleteFolder(sender, args);
+			return false;
+		}
 		public event vlnTreeViewItemInfoInsertEvent InsertItemInfo;
 		private bool OnInsertItemInfo(object sender, vlnTreeItemInfoInsertEventArgs args)
 		{
@@ -3582,6 +3598,39 @@ namespace Volian.Controls.Library
 			}
 			return false;
 		}
+		public void RemoveFolder(int folderId)
+		{
+			TreeNode nodeToRemove = FindNodeById(folderId, this.Nodes);
+			if (nodeToRemove != null)
+			{
+				// Perform the removal logic
+				nodeToRemove.Remove(); // This removes the node from its parent
+			}
+		}
+		private TreeNode FindNodeById(int folderId, TreeNodeCollection nodes)
+		{
+			foreach (TreeNode node in nodes)
+			{
+				VETreeNode vetNode = node as VETreeNode;
+				if (vetNode != null)
+				{
+					FolderInfo folderInfo = vetNode.VEObject as FolderInfo;
+					if (folderInfo != null && folderInfo.FolderID == folderId)
+					{
+						return node;
+					}
+					else
+					{
+						TreeNode foundNode = FindNodeById(folderId, node.Nodes);
+						if (foundNode != null)
+						{
+							return foundNode;
+						}
+					}
+				}
+			}
+			return null;
+		}
 		private bool DeleteItemInfoAndChildren(ItemInfo ii)
 		{
 			DateTime dtStart = DateTime.Now;