Using StringValidator to check if the character count is within range : StringValidator « Data Model « Flex

1. Flex
2. Data Model
3. StringValidator

Using StringValidator to check if the character count is within range

   

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
    <mx:StringValidator source="{username}" 
                        property="text"
                        minLength="3" 
                        maxLength="20" 
                        trigger="{submitButton}"
                        triggerEvent="click"
                        tooShortError="at least 3 characters"
                        tooLongError="too long" />
    <mx:Text text="Enter your username:" />
    <mx:TextInput id="username" />
    <mx:Button label="Submit" id="submitButton" />
</mx:Application>

   
    
    
  

Related examples in the same category

1.	Using ActionScript to validate min length text input
2.	Change event we can validate in real time
3.	Set StringValidator to validate required field
4.	Using the StringValidator class
5.	A StringValidator ensures text has been entered.
6.	Too long error and too short error messages for StringValidator
7.	StringValidator for Form text input
8.	Validating required fields