www.pudn.com > Fxj_Data_Fx.rar > ArrayDataView.cs

// Static Model 
 
namespace FinData 
{ 
	using System; 
	using System.ComponentModel; 
	/// 
 
	/// Represents a databindable, customized view of two dimentional array 
	/// 
 
	public class ArrayDataView	: IBindingList 
	{ 
		#region Variables 
 
		/// 
 
		/// array rows. 
		/// 
 
		private		ArrayRowView[]	_rows; 
		/// 
 
		/// Data which will be binded. 
		/// 
 
		internal	Array			_data; 
		/// 
 
		/// Alternative column names. 
		/// 
 
		private		string[]		_colnames;	 
 
		#endregion // Variables 
 
		#region Constructors 
 
		/// 
 
		/// Initializes a new ArrayDataView from array. 
		/// 
 
		/// array of data. 
		public ArrayDataView(Array array) 
		{ 
			if (array.Rank != 2) 
				throw new ArgumentException("Supports only two dimentional arrays","array"); 
 
			_data = array; 
		 
			_rows = new ArrayRowView[array.GetLength(0)]; 
 
			for(int i = 0; i < _rows.Length; i++) 
			{ 
				_rows[i] = new ArrayRowView(this,i); 
			} 
		} 
		 
		/// 
 
		/// Initializes a new ArrayDataView from array with custom column names. 
		/// 
 
		/// array of data. 
		/// collection of column names. 
		public ArrayDataView(Array array, object[] colnames) : this(array) 
		{ 
			if(colnames.Length != array.GetLength(1)) 
				throw new ArgumentException("column names must correspond to array columns.","colnames"); 
 
			_colnames = new string[colnames.Length]; 
			for(int i = 0; i < colnames.Length; i++) 
			{ 
				_colnames[i] = colnames[i].ToString(); 
			} 
		} 
 
		#endregion // Constructors 
 
//		#region Events 
//		public delegate void ValueChangingEventHandler(int row,int col,object value); 
//		public event ValueChangingEventHandler ValueChaning; 
// 
//		internal void OnValueChaning(int row,int col,object value) 
//		{ 
//			if( 
//		} 
//		 
// 
//		#endregion // Events 
 
		#region Properties 
 
		internal string[] ColumnNames 
		{ 
			get 
			{ 
				if (_colnames == null) 
				{ 
					_colnames = new string[_data.GetLength(1)]; 
					for(int i = 0; i < _colnames.Length; i++) 
					{ 
						_colnames[i] = i.ToString(); 
					} 
				} 
				return _colnames; 
			} 
		} 
 
		#endregion // Properties 
 
		#region Methods 
 
		public void Reset() 
		{ 
			OnListChanged(new ListChangedEventArgs(ListChangedType.Reset,-1)); 
		} 
 
		#endregion  
 
		#region IBindingList Members 
 
		public void AddIndex(PropertyDescriptor property) 
		{ 
			// TODO:  Add ArrayDataView.AddIndex implementation 
		} 
 
		public bool AllowNew 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.AllowNew getter implementation 
				return false; 
			} 
		} 
 
		public void ApplySort(PropertyDescriptor property, System.ComponentModel.ListSortDirection direction) 
		{ 
			// TODO:  Add ArrayDataView.ApplySort implementation 
		} 
 
		public PropertyDescriptor SortProperty 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.SortProperty getter implementation 
				return null; 
			} 
		} 
 
		public int Find(PropertyDescriptor property, object key) 
		{ 
			// TODO:  Add ArrayDataView.Find implementation 
			return 0; 
		} 
 
		public bool SupportsSorting 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.SupportsSorting getter implementation 
				return false; 
			} 
		} 
 
		public bool IsSorted 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.IsSorted getter implementation 
				return false; 
			} 
		} 
 
		public bool AllowRemove 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.AllowRemove getter implementation 
				return false; 
			} 
		} 
 
		public bool SupportsSearching 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.SupportsSearching getter implementation 
				return false; 
			} 
		} 
 
		public System.ComponentModel.ListSortDirection SortDirection 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.SortDirection getter implementation 
				return new System.ComponentModel.ListSortDirection (); 
			} 
		} 
 
		public event System.ComponentModel.ListChangedEventHandler ListChanged; 
 
		private void OnListChanged(ListChangedEventArgs e) 
		{ 
			if (ListChanged != null) 
			{ 
				ListChanged(this,e); 
			} 
		} 
 
		public bool SupportsChangeNotification 
		{ 
			get 
			{ 
				return true; 
			} 
		} 
 
		public void RemoveSort() 
		{ 
			// TODO:  Add ArrayDataView.RemoveSort implementation 
		} 
 
		public object AddNew() 
		{ 
			// TODO:  Add ArrayDataView.AddNew implementation 
			return null; 
		} 
 
		public bool AllowEdit 
		{ 
			get 
			{ 
				return true; 
			} 
		} 
 
		public void RemoveIndex(PropertyDescriptor property) 
		{ 
			// TODO:  Add ArrayDataView.RemoveIndex implementation 
		} 
 
		#endregion 
 
		#region IList Members 
 
		public bool IsReadOnly 
		{ 
			get 
			{ 
				return true; // we hold array. 
			} 
		} 
 
		public object this[int index] 
		{ 
			get 
			{ 
				return _rows[index]; 
			} 
			set 
			{ 
				 
			} 
		} 
 
		public void RemoveAt(int index) 
		{ 
			// TODO:  Add ArrayDataView.RemoveAt implementation 
		} 
 
		public void Insert(int index, object value) 
		{ 
			// TODO:  Add ArrayDataView.Insert implementation 
		} 
 
		public void Remove(object value) 
		{ 
			// TODO:  Add ArrayDataView.Remove implementation 
		} 
 
		public bool Contains(object value) 
		{ 
			// TODO:  Add ArrayDataView.Contains implementation 
			return false; 
		} 
 
		public void Clear() 
		{ 
			// TODO:  Add ArrayDataView.Clear implementation 
		} 
 
		public int IndexOf(object value) 
		{ 
			// TODO:  Add ArrayDataView.IndexOf implementation 
			return 0; 
		} 
 
		public int Add(object value) 
		{ 
			// TODO:  Add ArrayDataView.Add implementation 
			return 0; 
		} 
 
		public bool IsFixedSize 
		{ 
			get 
			{ 
				return true; 
			} 
		} 
 
		#endregion 
 
		#region ICollection Members 
 
		public bool IsSynchronized 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.IsSynchronized getter implementation 
				return false; 
			} 
		} 
 
		public int Count 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.Count getter implementation 
				return _rows.Length; 
			} 
		} 
 
		public void CopyTo(System.Array array, int index) 
		{ 
			// TODO:  Add ArrayDataView.CopyTo implementation 
		} 
 
		public object SyncRoot 
		{ 
			get 
			{ 
				// TODO:  Add ArrayDataView.SyncRoot getter implementation 
				return null; 
			} 
		} 
 
		#endregion 
 
		#region IEnumerable Members 
 
		public System.Collections.IEnumerator GetEnumerator() 
		{ 
			// TODO:  Add ArrayDataView.GetEnumerator implementation 
			return _rows.GetEnumerator(); 
		} 
 
		#endregion 
	}// END CLASS DEFINITION ArrayDataView 
 
} // FinData