Selecting Items

The SelectedIndex property determines which item is selected in a drop-down list. The SelectedIndex is based on a zero-based index, meaning that 0 represents the first C1ComboBoxItem, 1 represents the second C1ComboBoxItem, and so on. In the image below, the SelectedIndex is set to 2, which selects the third C1ComboBoxItem.

In XAML
In Code
In the Designer

To set a selected item, add SelectedIndex="0" to the <c1:C1ComboBoxItem> tag so that the markup resembles the following:

XAML	Copy Code
<c1:C1ComboBoxItem Content="C1ComboBoxItem1" SelectedIndex="1">

Complete the following steps:

Open the MainWindow.xaml.cs or the MainPage.xaml.cs page (or the MainWindow.xaml.vb page for Visual Basic).
Add the following code beneath the InitializeComponent() method:

Visual Basic
Copy Code
C1ComboBoxItem1.SelectedIndex = 1
C#
Copy Code
c1ComboBoxItem1.SelectedIndex = 1;

Visual Basic	Copy Code
C1ComboBoxItem1.SelectedIndex = 1

C#	Copy Code
c1ComboBoxItem1.SelectedIndex = 1;

Run the program.

Complete the following steps:

Select the C1ComboBox control.
In the Properties window, set the SelectedIndex property to "1" so that the second C1ComboBoxItem will be selected.