[flexcoders] Why defaultButton do not work when in TabNavigator?

[Sergey Kovalyov]

Hi All!

I have simple application. Authentication form with Sign in button
assigned as defaultButton. The source is available below:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
        horizontalAlign="left">
        
        <mx:Script>
                <![CDATA[

                        import mx.controls.Alert;
                        
                        private function onSignInButtonClick() : void {
                                Alert.show("Sign in clicked");
                        }
                        
                ]]>
        </mx:Script>

        <mx:Form defaultButton="{signInButton}">
                <mx:FormItem label="Username:">
                        <mx:TextInput />
                </mx:FormItem>
                <mx:FormItem label="Password:">
                        <mx:TextInput displayAsPassword="true" />
                </mx:FormItem>
                <mx:FormItem>
                        <mx:Button id="signInButton" label="Sign in" 
click="onSignInButtonClick()" />
                </mx:FormItem>
        </mx:Form>

</mx:Application>



When you set focus on any TextInput instance inside the form and click
Enter, alert window is shown. But when I put form into the
TabNavigator container, this does not work. Look at the code below:

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml";
        horizontalAlign="left">
        
        <mx:Script>
                <![CDATA[

                        import mx.controls.Alert;
                        
                        private function onSignInButtonClick() : void {
                                Alert.show("Sign in clicked");
                        }
                        
                ]]>
        </mx:Script>

        <mx:TabNavigator>
                <mx:Form label="Authentication form" 
defaultButton="{signInButton}">
                        <mx:FormItem label="Username:">
                                <mx:TextInput />
                        </mx:FormItem>
                        <mx:FormItem label="Password:">
                                <mx:TextInput displayAsPassword="true" />
                        </mx:FormItem>
                        <mx:FormItem>
                                <mx:Button id="signInButton" label="Sign in"
click="onSignInButtonClick()" />
                        </mx:FormItem>
                </mx:Form>
        </mx:TabNavigator>

</mx:Application>



What is wrong with this?

Regards, Sergey.


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