Tag Archive for 'selecteditem'

16
Jan

Preventing specific items from being selected in a Flex Tree control

In a previous example, “Preventing branches from being selected in a Flex Tree control”, we saw how we could prevent users from selecting branches (folders) in a Tree container in Flex by using the itemClick event and the Tree class’s dataDescriptor.isBranch() method.

The following example shows you how you can prevent any item from being selected by adding an attribute (named “clickable”, but you could name it anything you wanted) and using E4X expressions to determine if the currently clicked item should be selectable or not.

Full code after the jump.

Continue reading ‘Preventing specific items from being selected in a Flex Tree control’

16
Jan

Preventing branches from being selected in a Flex Tree control

The following example shows you how you can prevent users from selecting the branch (folder) items in a Tree control in Flex by listening for the itemClick event and using the Tree class’s dataDescriptor.isBranch() method to determine whether the currently selected item is a branch, and if so, deselect the item.

Full code after the jump.

Continue reading ‘Preventing branches from being selected in a Flex Tree control’

29
Nov

Using the itemDoubleClick event to open nodes in a Flex Tree control

The following example shows how you can use the itemDoubleClick event to open the selected Tree node in Flex.

Full code after the jump.

Continue reading ‘Using the itemDoubleClick event to open nodes in a Flex Tree control’