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PropertyDescriptorCollection::Item Property (Int32)

.NET Framework (current version)
 

Gets or sets the PropertyDescriptor at the specified index number.

Namespace:   System.ComponentModel
Assembly:  System (in System.dll)

C#
C++
F#
VB
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public:
property PropertyDescriptor^ default[
	int index
] {
	virtual PropertyDescriptor^ get(int index);
}

Parameters

index
Type: System::Int32

The zero-based index of the PropertyDescriptor to get or set.

Property Value

Type: System.ComponentModel::PropertyDescriptor^

The PropertyDescriptor with the specified index number.

Exception Condition
IndexOutOfRangeException

The index parameter is not a valid index for Item.

The index number is zero-based. Therefore, you must subtract 1 from the numerical position of a particular PropertyDescriptor to access that PropertyDescriptor. For example, to get the third PropertyDescriptor, you need to specify myColl[2].

The following code example uses the Item property to print the name of the PropertyDescriptor specified by the index number in a text box. Because the index number is zero-based, this example prints the name of the second PropertyDescriptor. It requires that button1 has been instantiated on a form.

C#
C++
VB
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void PrintIndexItem()
{

   // Creates a new collection and assigns it the properties for button1.
   PropertyDescriptorCollection^ properties = TypeDescriptor::GetProperties( button1 );

   // Prints the second property's name.
   textBox1->Text = properties[ 1 ]->ToString();
}

.NET Framework
Available since 1.1
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