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Unleash PropertyGrid with Dynamic Properties and Globalization

, 29 Jan 2004
The article presents a way to enhance the use of the PropertyGid control with dynamic properties and globalization
using System;
using System.ComponentModel;
using System.Globalization;
using System.ComponentModel.Design;
using System.ComponentModel.Design.Serialization;
using System.Collections;
using CustomControls.ApplicationBlocks;
using CustomControls.Editors;
using System.Drawing;

namespace DynamicProperties
{
	[TypeConverter(typeof(Employee_Converter))]
	public class Employee:DynamicTypeDescriptor
	{

		private string _Name=string.Empty;
		private int _Age=-1;
	
		//Avoid using the name "Name" for your property  in  objects that implements IComoponent, because it may interfier with the  Design-Time property "Name" 
		[Category("EmployeeInfo")]
		public string FullName
		{
			get{return _Name;}
			set
			{
				if(value!=_Name)
				{
					_Name= value;
				}
			}
		}

		[Category("EmployeeInfo")]
		public int Age
		{
			get{return _Age;}
			set
			{
				if(value!=_Age)
				{
					_Age= value;
				}
			}
		}
		public Employee()
		{
			
		}
		public Employee(string Name, int Age)
		{
			this._Name= Name;
			this._Age= Age;
		}

		#region "Localization"

		public override string GetLocalizedName(string Name)
		{			
			string name=CustomControls.Globalization.Dictionary.Translate(Name);
			if(name!=null ){return name;}
			return base.GetLocalizedName (Name);
		}

		public override string GetLocalizedDescription(string Description)
		{
			string descr=CustomControls.Globalization.Dictionary.Translate(Description + "_Descr");
			if(descr!=null ){return descr;}
			return base.GetLocalizedName (Description);
		}

        
		#endregion
	}

	internal class Employee_Converter:ExpandableObjectConverter
	{
	
		public override bool CanConvertTo(ITypeDescriptorContext context, Type destType) 
		{
			if (destType == typeof(InstanceDescriptor)) 
			{
				return true;
			}
			return base.CanConvertTo(context, destType);
		}	
		
		
		public override object  ConvertTo(ITypeDescriptorContext context,CultureInfo info,object value,Type destType )
		{
			if (destType == typeof(InstanceDescriptor)) 
			{
				return new InstanceDescriptor(typeof(Employee).GetConstructor(new Type[0]),null,false);
			}
			return base.ConvertTo(context,info,value,destType);
		}

		
	}
	public class Employee_Collection:CollectionBase
	{
		

		public Employee_Collection()
		{
			
		}

		public int Add(Employee e)
		{
			return this.InnerList.Add(e);
		}

		public void AddRange(Employee[] es)
		{
			this.InnerList.AddRange(es);	
		}

		public void Remove(Employee e)
		{
			InnerList.Remove(e);
		}

		public new void RemoveAt(int index)
		{
			InnerList.RemoveAt(index);
		}

		public bool Contains(Employee e)
		{
			return InnerList.Contains(e);
		}

		public Employee this[int index]
		{
			get{return (Employee)this.InnerList[index];}
			set{this.InnerList[index]= value;}
		}
	}
	public class Employees_CollectionEditorForm:CustomControls.Editors.CustomCollectionEditorForm
	{

		public Employees_CollectionEditorForm()
		{
				this.ImageList=CustomControls.BaseClasses.ImageRes.ImageList;
		}


		protected override void SetProperties(TItem titem, object reffObject)
		{
			
			if(reffObject is Employee)
			{
				Employee emp =(Employee)reffObject;
			
				titem.Text=emp.FullName;
				if(emp.Age<18)
				{
					titem.ForeColor=Color.Red;
					titem.ImageIndex=12;
					titem.SelectedImageIndex=12;
				}
				else
				{
					titem.ForeColor=Color.Black;
					titem.ImageIndex=11;
					titem.SelectedImageIndex=11;
				}
			}
			
					
		}

		
	}


	public class Employees_CollectionEditor:CustomCollectionEditor
	{
		protected override CustomCollectionEditorForm CreateForm()
		{
			return new Employees_CollectionEditorForm();
		}

	}
}

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License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

About the Author

Daniel Zaharia
Web Developer
Romania Romania
No Biography provided

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