How do I add items to list boxes or combo boxes?
To add or remove items from a list box or combo box control, you must access methods for the Items property. Perform the following steps:
- Highlight the control in Object Explorer.
- Click at the top of Object Explorer.
- On the list of properties that displays, highlight the Items property.
- To see a list of available properties and methods, click .
- In the Configuration dialog, click the methods that you want to use and click . The methods that you selected display in the Object Explorer. Commonly used methods are displayed in the following list:
- Items.Add – Adds an item at the specified index.
- Items.AddRange – There are two AddRange methods, AddRange(ObjectCollection value) and AddRange((Object[] items). To add an array of items, use the AddRange(Objec[] items) method.
- Items.Clear – Removes all items from the list box or combo box.
- Items.Remove – Removes the item with the specified value.
- Items.RemoveAt – Removes the item at the specified index.
The following automation shows how you can add and remove items from a list box:
![Connection block example using the AddRange(Object[]) method](https://docs-previous.pega.com/sites/default/files/images/OpenSpan/1287951_03.png)
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