The following example creates the MyImage property. The property has two attributes, a DescriptionAttribute and a CategoryAttribute.
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<Description("The image associated with the control"), _
Category("Appearance")> _
Public Property MyImage() As Image
Get
' Insert code here.
Return image1
End Get
Set
' Insert code here.
End Set
End Property
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[Description("The image associated with the control"),Category("Appearance")]
public Image MyImage {
get {
// Insert code here.
return image1;
}
set {
// Insert code here.
}
}
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public:
property Image^ MyImage
{
[Description("The image associated with the control"),Category("Appearance")]
Image^ get()
{
// Insert code here.
return image1;
}
void set( Image^ value )
{
// Insert code here.
}
}
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/** @attribute Description("The image associated with the control")
@attribute Category("Appearance")
*/
/** @property
*/
public Image get_MyImage()
{
// Insert code here.
return image1;
} //get_MyImage
/** @property
*/
public void set_MyImage(Image value)
{
// Insert code here.
} //set_MyImage
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The next example gets the description of MyImage. First the code gets a PropertyDescriptorCollection with all the properties for the object. Next it indexes into the PropertyDescriptorCollection to get MyImage. Then it returns the attributes for this property and saves them in the attributes variable.
The example then prints the description by retrieving DescriptionAttribute from the AttributeCollection, and writing it to the console screen.
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' Gets the attributes for the property.
Dim attributes As AttributeCollection = _
TypeDescriptor.GetProperties(Me)("MyImage").Attributes
' Prints the description by retrieving the DescriptionAttribute
' from the AttributeCollection.
Dim myAttribute As DescriptionAttribute = _
CType(attributes(GetType(DescriptionAttribute)), DescriptionAttribute)
Console.WriteLine(myAttribute.Description)
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// Gets the attributes for the property.
AttributeCollection attributes =
TypeDescriptor.GetProperties(this)["MyImage"].Attributes;
/* Prints the description by retrieving the DescriptionAttribute
* from the AttributeCollection. */
DescriptionAttribute myAttribute =
(DescriptionAttribute)attributes[typeof(DescriptionAttribute)];
Console.WriteLine(myAttribute.Description);
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// Gets the attributes for the property.
AttributeCollection^ attributes = TypeDescriptor::GetProperties( this )[ "MyImage" ]->Attributes;
/* Prints the description by retrieving the DescriptionAttribute
* from the AttributeCollection. */
DescriptionAttribute^ myAttribute = dynamic_cast<DescriptionAttribute^>(attributes[ DescriptionAttribute::typeid ]);
Console::WriteLine( myAttribute->Description );
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// Gets the attributes for the property.
AttributeCollection attributes = TypeDescriptor.GetProperties(this).
get_Item("MyImage").get_Attributes();
/* Prints the description by retrieving the DescriptionAttribute
from the AttributeCollection.
*/
DescriptionAttribute myAttribute = (DescriptionAttribute)(attributes.
get_Item(DescriptionAttribute.class.ToType()));
Console.WriteLine(myAttribute.get_Description());
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