DotNet 4.8.1 build of DotNetBar

PROMS/DotNetBar Source Code/AdvTree/CellCollection.cs

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+using System;
+using System.Collections;
+using System.ComponentModel;
+
+namespace DevComponents.AdvTree
+{
+	///<summary>
+	/// A strongly-typed collection of <see cref="Cell"/> objects.
+	///</summary>
+	public class CellCollection:CollectionBase 
+	{
+		#region Private Variables
+		private Node m_ParentNode=null;
+		#endregion
+
+		#region Internal Implementation
+		/// <summary>Creates new instance of the class.</summary>
+		public CellCollection()
+		{
+		}
+		/// <summary>
+		/// Adds new object to the collection.
+		/// </summary>
+		/// <param name="cell">Object to add.</param>
+		/// <returns>Index of newly added object.</returns>
+		public int Add(Cell cell)
+		{
+			return List.Add(cell);
+		}
+		/// <summary>
+		/// Returns reference to the object in collection based on it's index.
+		/// </summary>
+		public Cell this[int index]
+		{
+			get {return (Cell)(List[index]);}
+			set {List[index] = value;}
+		}
+        /// <summary>
+        /// Returns reference to the object in collection based on it's name. Returns null/nothing if cell with given name is not found.
+        /// </summary>
+        public Cell this[string name]
+        {
+            get 
+            {
+                foreach (Cell item in List)
+                {
+                    if (item.Name == name) return item;
+                }
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// Gets the cell based on the column name. Node must be able to reach AdvTree control for this method to work.
+        /// </summary>
+        /// <param name="columnName">Column name.</param>
+        /// <returns>Cell object or null.</returns>
+        public Cell GetByColumnName(string columnName)
+        {
+            if (string.IsNullOrEmpty(columnName))
+                throw new ArgumentException("columnName argument must be non-empty non-null string with column name");
+            Node parentNode = this.ParentNode;
+            AdvTree tree = parentNode.TreeControl;
+            if (tree == null)
+                throw new NullReferenceException("AdvTree control cannot be reached. Node is not added to a tree.");
+            Cell cell = null;
+            if (parentNode.Parent != null && parentNode.Parent.NodesColumns.Count > 0)
+            {
+                int index= parentNode.Parent.NodesColumns.IndexOf(columnName);
+                if (index >= 0) cell = this[index];
+            }
+            else
+            {
+                int index = tree.Columns.IndexOf(columnName);
+                if (index >= 0) cell = this[index];
+            }
+            return cell;
+        }
+
+		/// <summary>
+		/// Inserts new object into the collection.
+		/// </summary>
+		/// <param name="index">Position of the object.</param>
+		/// <param name="value">Object to insert.</param>
+		public void Insert(int index, Cell value) 
+		{
+			List.Insert(index, value);
+		}
+
+		/// <summary>
+		/// Returns index of the object inside of the collection.
+		/// </summary>
+		/// <param name="value">Reference to the object.</param>
+		/// <returns>Index of the object.</returns>
+		public int IndexOf(Cell value) 
+		{
+			return List.IndexOf(value);
+		}
+
+		/// <summary>
+		/// Returns whether collection contains specified object.
+		/// </summary>
+		/// <param name="value">Object to look for.</param>
+		/// <returns>true if object is part of the collection, otherwise false.</returns>
+		public bool Contains(Cell value) 
+		{
+			return List.Contains(value);
+		}
+
+		/// <summary>
+		/// Removes specified object from the collection.
+		/// </summary>
+		/// <param name="value"></param>
+		public void Remove(Cell value) 
+		{
+			List.Remove(value);
+		}
+
+		protected override void OnRemoveComplete(int index,object value)
+		{
+			base.OnRemoveComplete(index,value);
+			Cell cell=value as Cell;
+			cell.SetParent(null);
+			if(m_ParentNode!=null)
+				m_ParentNode.OnCellRemoved(cell);
+		}
+		protected override void OnInsertComplete(int index,object value)
+		{
+			base.OnInsertComplete(index,value);
+			Cell cell=value as Cell;
+			if(cell.Parent!=null && cell.Parent!=m_ParentNode)
+				cell.Parent.Cells.Remove(cell);
+			cell.SetParent(m_ParentNode);
+			if(m_ParentNode!=null)
+				m_ParentNode.OnCellInserted(cell);
+		}
+        protected override void OnInsert(int index, object value)
+        {
+            if (m_ParentNode != null && m_ParentNode.Site != null && m_ParentNode.Site.DesignMode && this.List.Count > 0)
+            {
+                Cell cell = value as Cell;
+                if (cell.Site == null && this.List.Contains(cell)) this.List.Remove(cell);
+            }
+
+            base.OnInsert(index, value);
+        }
+
+		/// <summary>
+		/// Copies collection into the specified array.
+		/// </summary>
+		/// <param name="array">Array to copy collection to.</param>
+		/// <param name="index">Starting index.</param>
+		public void CopyTo(Cell[] array, int index) 
+		{
+			List.CopyTo(array, index);
+		}
+
+		/// <summary>
+		/// Copies contained items to the Cell array.
+		/// </summary>
+		/// <param name="array">Array to copy to.</param>
+		internal void CopyTo(Cell[] array)
+		{
+			List.CopyTo(array,0);
+		}
+
+        private Cell _RootCell = null;
+		protected override void OnClear()
+		{
+            if (m_ParentNode != null && m_ParentNode.Site != null && m_ParentNode.Site.DesignMode && this.List.Count>0)
+            {
+                if (this[0].Site == null)
+                    _RootCell = this[0];
+            }
+			base.OnClear();
+		}
+
+        protected override void OnClearComplete()
+        {
+            base.OnClearComplete();
+            if (_RootCell != null)
+            {
+                this.Add(_RootCell);
+                _RootCell = null;
+            }
+        }
+
+        protected override void OnSet(int index, object oldValue, object newValue)
+        {
+            base.OnSet(index, oldValue, newValue);
+        }
+
+		/// <summary>
+		/// Gets or sets the node this collection is associated with.
+		/// </summary>
+		[Browsable(false),DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
+		public Node ParentNode
+		{
+			get {return m_ParentNode;}
+		}
+		/// <summary>
+		/// Sets the node collection belongs to.
+		/// </summary>
+		/// <param name="parent">Cell that is parent of this collection.</param>
+		internal void SetParentNode(Node parent)
+		{
+			m_ParentNode=parent;
+		}
+		#endregion
+	}
+}