SourceGrid - Open Source C# Grid Control

using System;
using System.Collections;
using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using System.Reflection;

namespace SourceGrid
{
	/// <summary>
	/// Summary description for PropertyGridEx.
	/// </summary>
	public class PropertyGridEx : System.Windows.Forms.UserControl
	{
		#region System

		/// <summary> 
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;

		public PropertyGridEx()
		{
			// This call is required by the Windows.Forms Form Designer.
			InitializeComponent();

			// TODO: Add any initialization after the InitForm call

		}

		/// <summary> 
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if(components != null)
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Component Designer generated code
		/// <summary> 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.panel1 = new System.Windows.Forms.Panel();
			this.propertyGrid = new SourceGrid.Grid();
			this.panel1.SuspendLayout();
			this.SuspendLayout();
			// 
			// panel1
			// 
			this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.panel1.Controls.AddRange(new System.Windows.Forms.Control[] {
																				 this.propertyGrid});
			this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
			this.panel1.Name = "panel1";
			this.panel1.Size = new System.Drawing.Size(352, 280);
			this.panel1.TabIndex = 0;
			// 
			// propertyGrid
			// 
			this.propertyGrid.AutoSizeMinHeight = 20;
			this.propertyGrid.AutoSizeMinWidth = 20;
			this.propertyGrid.BackColor = System.Drawing.Color.White;
			this.propertyGrid.CellsContainerCursor = System.Windows.Forms.Cursors.Default;
			this.propertyGrid.CellsContainerToolTipText = "";
			this.propertyGrid.Cols = 0;
			this.propertyGrid.CustomScrollArea = new System.Drawing.Size(0, 0);
			this.propertyGrid.CustomScrollPosition = new System.Drawing.Point(0, 0);
			this.propertyGrid.Dock = System.Windows.Forms.DockStyle.Fill;
			this.propertyGrid.FixedCols = 0;
			this.propertyGrid.FixedRows = 0;
			this.propertyGrid.GridScrollPosition = new System.Drawing.Point(0, 0);
			this.propertyGrid.Name = "propertyGrid";
			this.propertyGrid.Rows = 0;
			this.propertyGrid.Size = new System.Drawing.Size(350, 278);
			this.propertyGrid.TabIndex = 5;
			this.propertyGrid.ToolTipActive = true;
			// 
			// PropertyGridEx
			// 
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.panel1});
			this.Name = "PropertyGridEx";
			this.Size = new System.Drawing.Size(352, 280);
			this.panel1.ResumeLayout(false);
			this.ResumeLayout(false);

		}
		#endregion

		private System.Windows.Forms.Panel panel1;

		#endregion
		private SourceGrid.Grid propertyGrid;

		public void LoadProperties(string[] p_Caption, Type[] p_ObjectType, object[] p_DefaultValue, bool p_bUnloadCurrentObject)
		{
			if (p_bUnloadCurrentObject)
				UnLoadProperties();
			InitGrid();
			for (int i = 0; i < p_ObjectType.Length; i++)
			{
				Cell l_CaptionCell;
				Cell l_ValueCell;
				if (p_DefaultValue!=null)
					GetCells(p_Caption[i],p_ObjectType[i],p_DefaultValue[i],out l_CaptionCell, out l_ValueCell);
				else
					GetCells(p_Caption[i],p_ObjectType[i],null,out l_CaptionCell, out l_ValueCell);
				int l_CurrentRow = propertyGrid.Rows;
				propertyGrid.AddRow(l_CurrentRow);
				propertyGrid[l_CurrentRow,0] = l_CaptionCell;
				propertyGrid[l_CurrentRow,1] = l_ValueCell;
			}
			EndGrid();
		}
		public void LoadProperties(object p_ObjectInstance)
		{
			LoadProperties(p_ObjectInstance,p_ObjectInstance.GetType().GetProperties());
		}
		public void LoadProperties(object p_ObjectInstance, PropertyInfo[] p_Properties)
		{
			UnLoadProperties();
			InitGrid();
			for (int i = 0; i < p_Properties.Length; i++)
			{
				if (IsBrowsable(p_Properties[i]))
				{
					Cell l_CaptionCell;
					Cell l_ValueCell;
					GetCells(p_Properties[i],p_ObjectInstance,out l_CaptionCell, out l_ValueCell);
					int l_CurrentRow = propertyGrid.Rows;
					propertyGrid.AddRow(l_CurrentRow);
					propertyGrid[l_CurrentRow,0] = l_CaptionCell;
					propertyGrid[l_CurrentRow,1] = l_ValueCell;
				}
			}
			EndGrid();
		}

		public void LoadProperties(ParameterInfo[] p_Parameters)
		{
			UnLoadProperties();
			InitGrid();
			for (int i = 0; i < p_Parameters.Length; i++)
			{
				if (IsBrowsable(p_Parameters[i]))
				{
					Cell l_CaptionCell;
					Cell l_ValueCell;
					GetCells(p_Parameters[i],out l_CaptionCell, out l_ValueCell);
					int l_CurrentRow = propertyGrid.Rows;
					propertyGrid.AddRow(l_CurrentRow);
					propertyGrid[l_CurrentRow,0] = l_CaptionCell;
					propertyGrid[l_CurrentRow,1] = l_ValueCell;
				}
			}
			EndGrid();
		}

		public object[] GetValues()
		{
			object[] l_Objs = new object[propertyGrid.Rows];
			for (int r = 0; r < l_Objs.Length; r++)
			{
				l_Objs[r] = propertyGrid[r,1].Value;
			}
			return l_Objs;
		}

		public void UnLoadProperties()
		{
			ClearObjectProperties();
		}

		protected virtual void ClearObjectProperties()
		{
			propertyGrid.Redim(0,0);
		}

		protected virtual void InitGrid()
		{
			propertyGrid.Cols = 2;
			propertyGrid.Selection.SelectionMode = GridSelectionMode.Row;
		}

		protected virtual void EndGrid()
		{
			propertyGrid.SetColWidth(0,130);
			propertyGrid.SetColWidth(1,Math.Max(100,propertyGrid.Width-propertyGrid.GetColWidth(0)-30));
		}

		private TypeCreator.TypeCreator m_Typereator = new TypeCreator.TypeCreator();
		public TypeCreator.TypeCreator TypeCreator
		{
			get{return m_Typereator;}
			set{m_Typereator = value;}
		}

		#region Property
		protected virtual void GetCells(PropertyInfo p_Info, object p_ObjectInstance, out Cell p_CaptionCell, out Cell p_ValueCell)
		{
			p_CaptionCell = new Cell(p_Info.Name);
			p_CaptionCell.ToolTipText = p_Info.Name + "("+ p_Info.PropertyType.ToString() + ")";
			p_CaptionCell.TextAlignment = ContentAlignment.MiddleLeft;
			p_CaptionCell.BackColor = Color.WhiteSmoke;

			try
			{
				//se pu� leggere e puo scrivere o � un reference type
				if (p_Info.CanWrite || p_Info.PropertyType.IsValueType==false )
				{
//					p_ValueCell = new CellTyped(p_Info.PropertyType,
//						new CellFormatter.CellFormatterTypeConverter(System.ComponentModel.TypeDescriptor.GetConverter(p_Info.PropertyType)),
//						(System.Drawing.Design.UITypeEditor)System.ComponentModel.TypeDescriptor.GetEditor(p_Info.PropertyType,typeof(System.Drawing.Design.UITypeEditor)),
//						p_Info.GetValue(p_ObjectInstance,null),
//						p_Info.GetValue(p_ObjectInstance,null),
//						TypeCreator);

					p_ValueCell = new Cell(p_Info.GetValue(p_ObjectInstance,null));
					p_ValueCell.Editor = Utility.CreateCellEditor(p_Info.PropertyType, p_Info.GetValue(p_ObjectInstance,null) , !(p_Info.PropertyType.IsValueType), TypeCreator);

					if (p_Info.CanWrite)
						p_ValueCell.BindValueAtProperty(p_Info,p_ObjectInstance);

					p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
				}
				else
					p_ValueCell = new Cell(p_Info.GetValue(p_ObjectInstance,null));

				p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
			}
			catch(Exception err)
			{
				p_ValueCell = new Cell(err.Message);
				p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
			}
		}

		protected virtual bool IsBrowsable(PropertyInfo p_Info)
		{
			object[] l_browsable = p_Info.GetCustomAttributes(typeof(BrowsableAttribute),true);
			for (int i = 0; i < l_browsable.Length; i++)
			{
				BrowsableAttribute l_attribute = (BrowsableAttribute)l_browsable[i];
				if (l_attribute.Browsable == false)
					return false;
			}
			if (p_Info.CanRead)
				return true;
			else
				return false;
		}

		#endregion

		#region Parameter
		protected virtual void GetCells(ParameterInfo p_Info, out Cell p_CaptionCell, out Cell p_ValueCell)
		{
			p_CaptionCell = new Cell(p_Info.Name);
			p_CaptionCell.ToolTipText = p_Info.Name + "("+ p_Info.ParameterType.ToString() + ")";
			p_CaptionCell.TextAlignment = ContentAlignment.MiddleLeft;
			p_CaptionCell.BackColor = Color.WhiteSmoke;

			try
			{
				//if (p_Info.IsIn) //This method depends on an optional metadata flag. This flag can be inserted by compilers, but the compilers are not obligated to do so

				object l_DefaultValue = null;
				if (p_Info.ParameterType.IsValueType)
					l_DefaultValue = Activator.CreateInstance(p_Info.ParameterType);

//				p_ValueCell = new CellTyped(p_Info.ParameterType,
//					new CellFormatter.CellFormatterTypeConverter(System.ComponentModel.TypeDescriptor.GetConverter(p_Info.ParameterType)),
//					(System.Drawing.Design.UITypeEditor)System.ComponentModel.TypeDescriptor.GetEditor(p_Info.ParameterType,typeof(System.Drawing.Design.UITypeEditor)),
//					l_DefaultValue,
//					l_DefaultValue,
//					TypeCreator);
				p_ValueCell = new Cell(l_DefaultValue);
				p_ValueCell.Editor = Utility.CreateCellEditor(p_Info.ParameterType,l_DefaultValue,!(p_Info.ParameterType.IsValueType),TypeCreator);

				p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
			}
			catch(Exception err)
			{
				p_ValueCell = new Cell(err.Message);
				p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
			}
		}

		protected virtual bool IsBrowsable(ParameterInfo p_Info)
		{
			return true;
		}
		#endregion

		#region CustomType
		protected virtual void GetCells(string p_Caption, Type p_Type, object p_DefaultValue, out Cell p_CaptionCell, out Cell p_ValueCell)
		{
			p_CaptionCell = new Cell(p_Caption);
			p_CaptionCell.ToolTipText = p_Caption + "("+ p_Type.ToString() + ")";
			p_CaptionCell.TextAlignment = ContentAlignment.MiddleLeft;
			p_CaptionCell.BackColor = Color.WhiteSmoke;

			try
			{
				/*object l_DefaultValue = null;
				if (p_Type.IsValueType)
					l_DefaultValue = Activator.CreateInstance(p_Type);*/

//				p_ValueCell = new CellTyped(p_Type,
//					new CellFormatter.CellFormatterTypeConverter(System.ComponentModel.TypeDescriptor.GetConverter(p_Type)),
//					(System.Drawing.Design.UITypeEditor)System.ComponentModel.TypeDescriptor.GetEditor(p_Type,typeof(System.Drawing.Design.UITypeEditor)),
//					p_DefaultValue,
//					p_DefaultValue,
//					TypeCreator);
				p_ValueCell = new Cell(p_DefaultValue);
				p_ValueCell.Editor = Utility.CreateCellEditor(p_Type,p_DefaultValue,!(p_Type.IsValueType),TypeCreator);

				p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
			}
			catch(Exception err)
			{
				p_ValueCell = new Cell(err.Message);
				p_ValueCell.TextAlignment = ContentAlignment.MiddleLeft;
			}
		}
		#endregion
	}
}