PropertyDescriptorCollection.Count Property

Gets the number of property descriptors in the collection.

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

public int Count { get; }

Property Value

Type: System.Int32
The number of property descriptors in the collection.

You can use the Count property to set the limits of a loop that iterates through a collection of objects. Because the collection is zero-based, be sure to use Count - 1 as the upper boundary of the loop.

The following code example uses the Count property to print the number of properties on button1. It requires that button1 and textBox1 have been instantiated on a form.

private void GetCount() {
    // Creates a new collection and assign it the properties for button1.
    PropertyDescriptorCollection properties = TypeDescriptor.GetProperties(button1);

    // Prints the number of properties on button1 in a textbox.
    textBox1.Text = properties.Count.ToString();
 }

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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