Checking that an item is selected in the Spark DropDownList control in Flex 4

By Peter deHaan On March 12, 2010 · 1 Comment

The following example shows how you can check whether the user has selected an item in the Spark DropDownList control in Flex 4 by setting the Boolean requiresSelection property to true or using a NumberValidator to check the DropDownList control’s selectedIndex property is greater than -1.

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Setting the selected item on the FxButtonBar control in Flex Gumbo

By Peter deHaan On February 21, 2009 · Leave a Comment

In a previous example, “Setting the selected index on the FxButtonBar control in Flex Gumbo”, we saw how you could set the selected index on a Flex Gumbo FxButtonBar control by setting the selectedIndex property.

The following example shows how you can set the selected item on a Flex Gumbo FxButtonBar control by setting [...]

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Requiring a user has an item selected on the FxButtonBar in Flex Gumbo

By Peter deHaan On February 9, 2009 · Leave a Comment

The following example shows how you can make sure that the Flex Gumbo FxButtonBar control has an item selected by setting the Boolean requiresSelection property.

Full code after the jump.

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