> Untyping variables is generally a poor workaround Yeah Matt! That's why, I wanted you answer this...
-abdul ________________________________ From: Matt Chotin [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 15, 2005 11:23 PM To: [email protected] Subject: RE: [flexcoders] ComboBox databinding <mx:Binding source="String(countries.value)" destination="vo.country"/> The value of ComboBox is typed as Object, but if it's a String then you can cast it. Untyping variables is generally a poor workaround J Matt ________________________________ From: Tom Fitzpatrick [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 15, 2005 9:16 AM To: [email protected] Subject: RE: [flexcoders] ComboBox databinding At 10:44 AM 3/15/2005, you wrote: Abdul - That worked - thanks! I'm still troubled as to why I can't set types for the variables in my value object, though - if anyone has an idea. - Tom >I leave this for Matt, he is Binding guru :) > >I just removed type annotation from VO > >class EmployeeOptions >{ > public var firstname; > public var lastname; > public var country; >} > > > >I see no error.... > >Stay tuned.. > >-abdul > > >-----Original Message----- >From: Tom Fitzpatrick [mailto:[EMAIL PROTECTED] >Sent: Tuesday, March 15, 2005 6:58 PM >To: [email protected] >Subject: RE: [flexcoders] ComboBox databinding > > >Hi - > >Your example works fine, but when I try to achieve a similar binding using >a value object defined as an external class, I get a type mismatch error: > >"Type mismatch in assignment statement: found Object where String is >required". > >Here are some more details of my test setup. > >I have a value object defined as a class: > >class EmployeeOptions >{ > public var firstname:String; > public var lastname:String; > public var country:String; >} > >In a component called Employee, I've instantiated the class as: > ><EmployeeOptions id="vo"/> > >I'm trying to bind it from text fields and the comboBox this way: > > <mx:Binding source="firstName.text" destination="vo.firstname" /> > <mx:Binding source="lastName.text" destination="vo.lastname" /> > <mx:Binding source="countries.value" destination="vo.country"/> > >To return values to my component, I've created a delegate called >EmployeeDelegate. This is instantiated in the component as: > ><EmployeeDelegate id="delegate"/> > >I'm trying to call methods in the delegate to populate the component with >constructions such as: > ><mx:Label id="Name" >text="{delegate.getEmployeeName(vo.firstname,vo.lastname)}"/> > >This setup works just fine with the text fields, but the comboBox gives me >the type mismatch error when I use the above bindings. > >Help! > >- Tom > > > > > >At 08:38 PM 3/14/2005, you wrote: > >Hi, > > > >I don't have the book so couldn't look at the code...I know code is > >available somewhere online, but me being lazy :) > > > >However, following code might help you... > > > >###mxBindingTest.mxml### > ><mx:Application width="800" height="600" > >xmlns:mx="<<http://www.macromedia.com/2003/mxml>http://www.macromedia.com > /2003/mxml>http://www.macromedia.com/20 >03/mxml" > > > > > > > <!-- Form contains user input controls. --> > > <mx:Form label="Employee Information"> > > <mx:FormItem label="First Name"> > > <mx:TextInput id="firstName" /> > > </mx:FormItem> > > <mx:FormItem label="Last Name"> > > <mx:TextInput id="lastName" /> > > </mx:FormItem> > > <mx:FormItem label="Department"> > > <mx:TextInput id="department" /> > > </mx:FormItem> > > <mx:FormItem label="Email Address"> > > <mx:TextInput id="email" /> > > </mx:FormItem> > > <mx:FormItem label="Country"> > > <mx:ComboBox id="countries" > > > <mx:dataProvider> > > <mx:Array> > > <mx:String>India</mx:String> > > <mx:String>USA</mx:String> > > </mx:Array> > > </mx:dataProvider> > > </mx:ComboBox> > > </mx:FormItem> > > </mx:Form> > > > > <!-- The myEmployee data model --> > > <mx:Model id="myEmployee"> > > <name> > > <first/> > > <last/> > > </name> > > <department/>/ > > <email/> > > <country /> > > </mx:Model> > > > > <!-- Properties of user interface controls are bound to the > > myEmployee data model using <mx:Binding> tags --> > > > > <mx:Binding source="firstName.text" > >destination="myEmployee.name.first" /> > > <mx:Binding source="lastName.text" > >destination="myEmployee.name.last" /> > > <mx:Binding source="department.text" > >destination="myEmployee.department"/> > > <mx:Binding source="email.text" destination="myEmployee.email"/> > > <mx:Binding source="countries.value" > >destination="myEmployee.country"/> > > > > > > <mx:TextInput text="{myEmployee.country}"/> > > > > > > </mx:Application> > > > > > > > >Notice how combobox box is bound to a Model and Model is bound to > >TextInput... > > > >-abdul > > > >-----Original Message----- > >From: Tom Fitzpatrick [mailto:[EMAIL PROTECTED] > >Sent: Tuesday, March 15, 2005 6:01 AM > >To: [email protected] > >Subject: [flexcoders] ComboBox databinding > > > > > >I'm trying to create an application based on the LoanCalculator example in > >the Webster/McLeod book. > > > >Everything's working fine for simple bindings between text inputs on a form > >and the value object. Where I'm having trouble creating a databinding > >between a comboBox in the form and the value object. When the user selects > >an item in the comboBox it should be stored as a string in the value >object. > > > >What's the way to accomplish this? All the value object variables are > >public, as in the book example. > > > >Specifically, what would the <mx:Binding/> statement look like? A simple > >example would be even better. > > > >Thanks. > > > >- Tom > > > > > > > > > > > > > > > >Yahoo! Groups Links > > > > > > > > > > > > > > > > > >Yahoo! Groups Sponsor > >ADVERTISEMENT > ><<http://us.ard.yahoo.com/SIG=129m8jrlh/M=298184.6018725.7038619.3001176/ > D=g>http://us.ard.yahoo.com/SIG=129m8jrlh/M=298184.6018725.7038619.3001176/D =g >roups/S=1705007207:HM/EXP=1110937115/A=2593423/R=0/SIG=11el9gslf/*<http://w ww>http://www >.netflix.com/Default?mqso=60190075> > >click here > > > >[] > > > > > > > >---------- > >Yahoo! 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