Detecting a double click on a TextInput control in Flex

The following example shows how you can detect when a user double clicks a Flex TextInput control using the doubleClick event.

Full code after the jump.

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/24/detecting-a-double-click-on-a-textinput-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white">

    <mx:Script>
        <![CDATA[
            private function textInput_doubleClick(evt:MouseEvent):void {
                var ti:TextInput = evt.currentTarget as TextInput;
                ti.enabled = !ti.enabled;
                ti.editable = ti.enabled;
            }
        ]]>
    </mx:Script>

    <mx:TextInput id="textInput1"
            text="The quick brown fox jumped over the lazy dog"
            doubleClickEnabled="true"
            doubleClick="textInput_doubleClick(event);" />

    <mx:TextInput id="textInput2"
            text="The quick brown fox jumped over the lazy dog"
            doubleClickEnabled="true"
            doubleClick="textInput_doubleClick(event);" />

</mx:Application>

View source is enabled in the following example.

Due to popular demand, here is the “same” example in a more ActionScript friendly format:

View MXML

<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/06/24/detecting-a-double-click-on-a-textinput-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        initialize="init();">

    <mx:Script>
        <![CDATA[
            import mx.controls.TextInput;

            private var textInput1:TextInput;
            private var textInput2:TextInput;

            private function init():void {
                textInput1 = new TextInput();
                textInput1.text = "The quick brown fox jumped over the lazy dog";
                textInput1.doubleClickEnabled = true;
                textInput1.addEventListener(MouseEvent.DOUBLE_CLICK,
                            textInput_doubleClick);
                addChild(textInput1);

                textInput2 = new TextInput();
                textInput2.text = "The quick brown fox jumped over the lazy dog";
                textInput2.doubleClickEnabled = true;
                textInput2.addEventListener(MouseEvent.DOUBLE_CLICK,
                            textInput_doubleClick);
                addChild(textInput2);
            }

            private function textInput_doubleClick(evt:MouseEvent):void {
                var ti:TextInput = evt.currentTarget as TextInput;
                ti.enabled = !ti.enabled;
                ti.editable = ti.enabled;
            }
        ]]>
    </mx:Script>

</mx:Application>

8 thoughts on “Detecting a double click on a TextInput control in Flex

  1. Hi,

    when you doubleclick you will select a whole word. To remove the selection, add the following befor the closing brace of the function:


    ti.setSelection(0,0);

    This will select nothing.

    g2 cbr

  2. Quick question, I have built the same application with a basic textinput but on my laptop I cant type number and the ‘%’ char. But on this example I can.

    So what are the differences???

  3. Hi peterd, yes I restrict only number. But I have the same problem with a TextInput w/o any restrict. I have noticed I have this problem on some other flex applications, should be a local setting compiler or something like that?

Comments are closed.