Launching with the Drop- Down List Open

To launch the ComboBox with its drop-down list open, set the IsDropDownOpen property to True.

In XAML

Complete the following steps:

1. Add IsDropDownOpen="True" to the <c1:C1ComboBox> tag so that the markup resembles the following:

<c1:C1ComboBox HorizontalAlignment="Left" Width="249" IsDropDownOpen="True">

2. Run the program and observe that the drop-down list is open upon page load.

In Code

Complete the following steps:

1. Add x:Name="C1ComboBox1" to the <c1:C1ComboBox> tag so that the object will have a unique identifier for you to call in code.
2. Open the MainPage.xaml.cs or the MainWindow.xaml.cs page.
3. Add the following code beneath the InitializeComponent() method:

C1ComboBox1.IsDropDownOpen = True

C1ComboBox1.IsDropDownOpen = true;

4. Run the program and observe that the drop-down list is open upon page load.

In the Designer

Complete the following steps:

1. Click the C1ComboBox control once to select it.
2. In the Properties window, select the IsDropDownOpen check box.
3. Run the program and observe that the drop-down list is open upon page load.