contactform.mxml

flex编程学习以及应用很好的源码

<!--
   Copyright 2007, Firemoss, LLC

   Licensed under the Apache License, Version 2.0 (the "License");
   you may not use this file except in compliance with the License.
   You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.
-->
<mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" xmlns:ac="com.adobe.ac.*">

<mx:Script>
<![CDATA[
import mx.controls.Alert;
import mx.events.ValidationResultEvent;
import com.firemoss.modelglue.examples.contactmanager.model.ContactTO;

[Bindable]
public var contact:ContactTO;

private var _dataChanged:Boolean = false;

[Bindable]
public function set dataChanged(value:Boolean):void {
	this._dataChanged = value;
}

public function get dataChanged():Boolean {
	return this._dataChanged;
}

private function formValueChanged():void {
	this.dataChanged = true;
}

public function get isValid():Boolean {
	var valid:Boolean = true;

	if (firstnameValidator.validate().type == ValidationResultEvent.INVALID) valid = false;
	if (lastnameValidator.validate().type == ValidationResultEvent.INVALID) valid = false;
	if (phoneValidator.validate().type == ValidationResultEvent.INVALID) valid = false;
	if (emailValidator.validate().type == ValidationResultEvent.INVALID) valid = false;
	
	return valid;
}

private function resetValidation():void {
	if (this.firstname) {
		this.firstname.errorString = null;	
		this.lastname.errorString = null;	
		this.phone.errorString = null;	
		this.emailAddress.errorString = null;	
	}
}

public function applyChanges():void {
	this.contact.firstname = this.firstname.text;
	this.contact.lastname = this.lastname.text;
	this.contact.phone = this.phone.text;
	this.contact.emailAddress = this.emailAddress.text;
}

public function undoChanges():void {
	this.firstname.text = this.contact.firstname;
	this.lastname.text = this.contact.lastname;
	this.phone.text = this.contact.phone;
	this.emailAddress.text = this.contact.emailAddress;
	
	this._dataChanged = false;
	this.resetValidation();
}

private function contactChanged(c:ContactTO):void {
	this.resetValidation()
}
]]>
</mx:Script>

<ac:Observe source="{this.contact}" handler="contactChanged" />

<mx:StringValidator id="firstnameValidator" source="{firstname}" property="text" maxLength="50" required="true" />
<mx:StringValidator id="lastnameValidator" source="{lastname}" property="text" maxLength="50" required="true" />
<mx:StringValidator id="phoneValidator" source="{phone}" property="text" maxLength="50" required="true" />
<mx:EmailValidator id="emailValidator" source="{emailAddress}" property="text" />

<mx:Form width="90%">
	<mx:FormItem label="First Name" width="100%">
		<mx:TextInput id="firstname" text="{this.contact.firstname}" maxChars="50" width="100%" change="this.formValueChanged()" />
	</mx:FormItem>
	<mx:FormItem label="Last Name" width="100%">
		<mx:TextInput id="lastname" text="{this.contact.lastname}" maxChars="50" width="100%" change="this.formValueChanged()" />
	</mx:FormItem>
	<mx:FormItem label="Phone Number" width="100%">
		<mx:TextInput id="phone" text="{this.contact.phone}" maxChars="50" width="100%" change="this.formValueChanged()" />
	</mx:FormItem>
	<mx:FormItem label="E-Mail Address" width="100%">
		<mx:TextInput id="emailAddress" text="{this.contact.emailAddress}" maxChars="50" width="100%" change="this.formValueChanged()" />
	</mx:FormItem>
</mx:Form>	

</mx:VBox>