Just a bunch of Adobe Flex Examples
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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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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 the selectedItem property.
Full code after the jump.
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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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