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//A jouter une ref à System.Design.dll
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.ComponentModel;
using System.Drawing;
using System.ComponentModel.Design;
namespace HeritageControlCSHARP
{
public abstract class A:Control
{
public abstract void MethodeBase();
public abstract double D { get; set; }
public abstract string myStr { get; set; }
}
[DesignTimeVisible(false)]
public class B : A
{
public override void MethodeBase()
{
System.Console.WriteLine("MethodeBase.");
}
//proprietes de base implementees par N
//non browsable dans B et aussi ...dans C
[Browsable(false)]
[Description ("Propriete Largeur:Type Double")]
public override double D { get; set; }
[Browsable(false)]
[Description("Propriete Nom:Type string")]
public override string myStr { get; set; }
//1 nouvelles propriete propre -B- non browsable dans B =>egalement dans .....C
[Browsable(false)]
[Description("Propriete Number:Type int")]
public int Number { get; set; }
//1 nouvelles propriete de -B- browsable dans B =>egalement dans .....C
[Browsable(true)]
[Description("Propriete Size:Type Size")]
public Size CSize { get; set; }
}
[DesignTimeVisible(true)]
[DesignerAttribute(typeof(ClasseC_ControlDesigner), typeof(IDesigner))]
public class C : B
{
//1 nouvelles propriete propre à -C- browsable dans C
[Browsable(true)]
[Description("Propriete newProp:Type double")]
public double NewProp { get; set; }
}
//simple controldesigner pour la classe C
[System.Security.Permissions.PermissionSet(System.Security.Permissions.SecurityAction.Demand, Name = "FullTrust")]
public class ClasseC_ControlDesigner : System.Windows.Forms.Design.ControlDesigner
{
// In this implementation, the AccessibleDescription, AccessibleName and Dock
//property is hidden from any PropertyGrid or Properties window. This is done by
// creating a copy of the existing PropertyDescriptor and
// attaching two new Attributes: Browsable and EditorBrowsable.
protected override void PostFilterProperties(System.Collections.IDictionary properties)
{
PropertyDescriptor pd;
//3-prop AccessibleDescription
pd = properties["AccessibleDescription"] as PropertyDescriptor;
pd = TypeDescriptor.CreateProperty(
pd.ComponentType,
pd,
new Attribute[2] {
new BrowsableAttribute(false),
new EditorBrowsableAttribute(EditorBrowsableState.Never)});
properties[pd.Name] = pd;
//3-prop AccessibleName
pd = properties["AccessibleName"] as PropertyDescriptor;
pd = TypeDescriptor.CreateProperty(
pd.ComponentType,
pd,
new Attribute[2] {
new BrowsableAttribute(false),
new EditorBrowsableAttribute(EditorBrowsableState.Never)});
properties[pd.Name] = pd;
//3-prop Dock
pd = properties["Dock"] as PropertyDescriptor;
pd = TypeDescriptor.CreateProperty(
pd.ComponentType,
pd,
new Attribute[2] {
new BrowsableAttribute(false),
new EditorBrowsableAttribute(EditorBrowsableState.Never)});
properties[pd.Name] = pd;
// Always call the base PostFilterProperties implementation
// after you modify the properties collection.
base.PostFilterProperties(properties);
}
}
} |
[VS] problèmes avec mon custom control
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Envoyé par MABROUKI
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