Does data binding work with the UITextField? Unfortunately, I'm getting the variable instead of the bound data.
[Bindable]
public var myString:String;
in a function, where tf is a UITextField:
myString = "blah blah blah";
blah blah...
tf.text="{myString}";
It's giving me {myString} instead of its data.
If user change the value of the TextInput, then click refresh button to retrieve the data model from backend again, the GUI value will not change back. Re-binding not happen, Since the value of data model not changed, no propertyChanged event fired.In this case, I must Programmatically set the model value to the GUI after data refreshing done.I know bi-directional binding can solve this problem(when user change value on GUI, set the new value to data model immediately). But sometimes I cannot use bi-directional binding, for example, the data model is a int, but user input a non-int value, I cannot set the value to data model. So the value in data model do not change, when refresh data, rebinding still not happen.
This will make the data binding useless. How to resolve this?I put pseudo-code here for now, I will put real code later:1. retrieve a data model from server, via blazeds or something else.2. bind the model to a TextInput on GUI.3. user change the TextInput text.4. User click a refresh button, triger retrieve the model value again.5. Now since the model value do not change, no PropertyChanged event fired.6. GUI value still is the user's input, not the value from the model. can clear the model value before set the velue back, make re-binding happen.(but sometimes you do not know how to clean the model value, take int for example, you may do not know the original value and happen set the same value). Or I can manually set the model value to GUI. But both are not good looking.
I am using flex SDK 3.5. I have model.as and in it i have an ArrayCollection (name it arr_mod) which is Bindable.
From my mxml i link to this arr_mod in three places:
1) in DataGrid i set dataprovider={arr_mode} ...
2) in Button i add new item to the arr_mod this way: mx:Button .. click = "{arr_mod.addItem(new Item)}"
3) in textBox i want to add mx:TextBox text="{mySpecialCounterFunc(arr_mod)}"
note that in the Script of mxml arr_mod is Bindable as well as in the class definition in model.as
The problem is, that when clicking on button, mySpecialCounterFunc is not called! it should be called, since i use {} and this should listen to changes in arr_mod (a change that was made in the button should cause a new item to be added.. and than the listener to respond). While The DataGrid is updated correctly! By the way, if i change arr_mod to simple String or Int it works.. i.e. mySpecialCounterFunc is called Why??
I'm trying to implement a binding between some custom-built models and just beginning to dabble with the whole mx.binding.* collection. I tried this simple, stripped down example, but can't get the binding working correctly. Can somebody tell me where I'm going wrong?
[Code]...
The Flex application below generates the compiler warning: Data binding will not be able to detect assignments to 'dp'. This seems correct since the variable 'dp' is not a bindable property (there is no [Bindable] metadata tag). I have added a button which appends items to the back of 'dp' when it is clicked. Although the compiler warns me that I will not see changes to 'dp', the list shows the new item every time the button is clicked! I do not understand why I can see new items appear in the list. Can someone explain why this still works although 'dp' is not bindable?
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical" minWidth="955" minHeight="600">
<mx:Script>
[code].....
first one shows playheadtime of videodisplay and another is also used for same purpose. the difference is that when we are in add mode(decided from a flag variable) both should show current playheadtime using binding. but when we are in edit mode(again decided from flag) the latter label should remain static, to be more specific, the value retrived from database.how can I do that using actionscript. I tried ChangeWathcer but I found it a bit tricky. Is there any other simpler way or am I missing something. following is my code.
private function init():void
{
if (queFlag == 'a')
[code].....
I'm having some troubles with binding data. I have an application that contains a viewstack of components. Let's say I have comp1, comp2 and comp3 inside the viewstack. Each component, has its own data class --> comp1Data.as, comp2Data.as and comp3Data.as. All values in each component are binded to the corresponding data in it's data object.
A click in a control in comp1 leads to comp3, the same goes for comp2. Clicking a control in comp2 leads to comp3. When going from comp1 to comp3, comp3Data.as is initialized and and comp3 displays the binded values. When going from comp2 to comp3, comp3Data.as is also initialized but the binded values are not displayed...
[Code]...
I'd like to add a derived property to flex:[code]However, derived won't update when I change a or b.Is there a better (faster) way to make derived update than giving a and b setter methods which invalidate it?added keyword "get".This makes more sense now, I hope.
View 3 RepliesI need to bind a property to an edit control and have the control write its value back to the same property. The problem is, I'm setting the source value before the control is created:
<mx:Panel>
<mx:Script>
<![CDATA[
[Bindable] public var editedDocument: XML;
[code].....
I'm using Flex with Cairngorm framework.I have a custom component which I create like this:
<components:FriendSearchPaginator id="searchResultsPaginator"
paginationElement="{_model.findFriendsPaginationElement}"
visible="{_model.friendsSearchResultsPaginatorVisible}" />
Where the findFriendsPaginationElement is inside the model locator:
public var
[Bindable]
findFriendsPaginationElement:PaginationElement = new PaginationElement();
Inside the custom component I have button that uses a property of findFriendsPaginationElement object:
<s:Button id="previousButton"
label=" prev "
click="paginateSearchResults(false)"
enabled="{_model.findFriendsPaginationElement.more_previous}"/>
But I get a warning from Flex that the binding wouldn't work that way and it doesn't. It works the first time I load up the component but every time I change findFriendsPaginationElement it doesn't reflect on the component. Do you know how I can go about doing this? (making changing a value in the binding variable changes the status of an element inside a component?)
I'm binding two AutoCompleteModified objects to one another; meaning you type in one and it selects the correct object in the other. It works fine when I define it in MXML: However, a user can add a new row to a Grid and then I set up the binding and objects via actionscript and it gives an 'undefined' error:
ChangeWatcher line 427/wrapHandler.
var innerHBox:HBox = new HBox();
var dtc_acm:AutoCompleteModified = new AutoCompleteModified();
dtc_acm.dataProvider = data2;
dtc_acm.labelField = 'id';
var cp_acm:AutoCompleteModified = new AutoCompleteModified();
[Code] .....
If I only keep it 1-way binding then it works fine. But both throw this error. Is there something about not only doing it 2-way in actionscript, but adding components that aren't on the stage yet?
I have a bit of a problem (since I'm not used to binding with AS3), the thing is that I want to do this kind of data binding:
<mx:Application xmlns:mx="[URL]"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
[Code] .....
But the ComboBoxes are being created dynamically with AS3, everything is working except I cant bind the second ComboBox dataProvider to be the XMLList in the first ComboBox's selectedItem.
I have two Datagrid in flex. I am binding data from Datagrid1 to Datagrid2 like
(Datagrid2.dataProvider=Datagrid1.dataProvider as ArrayCollection;)
If I delete Datagrid2 data then automatically another Datagrid1 deleted .
So I don't want delete data in Datagrid1 . how can i do that , But I have other option for delete data to Datagrid1?
In Flex 3, I've created a ComboBox within an MXML component similar to the following:
<mx:ComboBox id="comboBox" dataProvider="{_choices}" />
<mx:Script> <![CDATA[
import mx.collections.ArrayCollection;
// etc...
public function get choices():ArrayCollection { return _choices; }
[Code] .....
In the parent MXML application, I'm modifying the contents of the choices property:
myComponentId.choices.removeAll();
myComponentId.choices.addItem({data: "NY", label: "New York"});
myComponentId.choices.addItem({data: "CA", label: "California"});
// etc...
The binding is working in that the ComboBox is automatically picking up the new contents added at runtime, however it is not adjusting its width. The initial width of the ComboBox is wide enough only to show the initial item "All" declared in the component. However, I want and would have expected the ComboBox to re-size automatically during binding to be able to show "California", but it isn't. How can I get the ComboBox to update its width after I have added new wider labels to its dataProvider?
I have a main.mxml application that lays out my application, it contains a "browse and upload" button. And contains an image to view the users uploaded image like so:
<mx:Application
<mx:Script>
<![CDATA[
[Code].....
In my myModel class I have a img_scld_bm that the browseAndUpload() function draws into after scaling it.
My intent is that my mx:Image will display the image. As shown here I'm assigning the image source="mymodel.img_scld_bm", this ends up just showing a broken image icon.
I also tried data binding, where in my myModel class I have [Bindable] var img_scld_bm. And then tried setting my mx:Image source="{myModel.img_scld_bm}" .. that didn't seem to do anything either. All this compiles fine, no warnings. I think in this case, I'm not setting a trigger or propertyChange event to update the binding?
how to correctly bind an mx:Image source to some bitmap?
class A: with a property "data:ArrayCollection". It's my data source (data provider) and has bitmaps.
class B: has an instance of A (called "Ainst") and calls the following method: C.init( Ainst.data). To pass the data provider to Object C.
class C: has a reference of the data provider "data" (because of "init" method). It shows the arrayCollection into Images as: Image.source = data.getItemAt(0).
But C never updates its images, that is, data binding doesn't work with this scheme. I've put [Bindable] meta-tag in all properties and even classes.
[Code]...
How do you set the selectedColor of a colorpicker when you bind data from a database? I have a bindable variable, objProject, with a field called color and it has a color code such as #ff00ff in it. I want to set the selectedColor. I tried to cast the color as a uint, but no joy.
objProject = cmbProject.selectedItem;
c = uint(objProject.color);
<mx:ColorPicker id="graphColor" x="17" y="219" width="128" height="40"
selectedColor="{c}" editable="true" />
I did try selectedColor="{objProject.color}" and that didn't work either.
i'm using flash builder 4..i want to ask something..how to binding data to custom list component in flex??...i already try binding data from webservice to standard datagrid component in flex, and it's work perfectly...this is my code for binding to datagrid..
<mx:DataGrid includeIn="LobbyPage" x="30" y="319" id="dataGrid" creationComplete="dataGrid_creationCompleteHandler(event)" dataProvider="{TakeUserResult4.lastResult}">
[code]....
I'm trying to extend ButtonBarButton to include an additional label that shows the number of updates for the respective box in a viewstack (which is the tabbar's dataProvider).
I can get the additional label (named indicatorLabel) to read an initial value from data, but I can't get it to update automatically like the actual "label" attribute. My understanding was that you could bind to the data object, but that doesn't appear to be the case.
[Code]...
Is there some way in Flex where I can tell when all of the data has finished binding to my AdvancedDataGrid? I have a bunch of label functions that run and I need to a busy cursor while the grid gets populated. I then want to remove it when it's all done. And also fire another event.
View 1 RepliesI have a flex datagrid. it is bound to an array collection. if the user sorts on column X it works fine. then, if the user causes the array collection to change, the datagrid forgets that it was sorted on column X.what do I need to do to preserve this sort preference so that the new array data will appear sorted by column X?
View 4 RepliesI have a main mxml file (flex4) and want to pass a parameter (user_name) to a component in a directory called components. When I run the program, the user_name is NOT being sent from the main to the component file. (Interestingly, if you make the component visible, you can see the parameter has been passed).
I have hacked much larger files down to get the following two files:
Main
<?xml version="1.0" encoding="utf-8"?>
<s:Application
xmlns:mx="library://ns.adobe.com/flex/mx" minWidth="955" minHeight="600"
[Code] .....
Assume i have a custom actionscript class. [code]...
Suppose also that i have a different class, that changes a second variable, which has the metadatatag [Bindable]. What methods and events do i have to implement in either of these classes, to make myVariable change, whenever the other is changend?
I have a situation where I need to update a DropDownList's dataProvider and selectedItem in a specific order. See the following code ...
<s:DropDownList id="dropDownList"
dataProvider="{someDataProvider}"
selectedItem="{someSelectedItem}" />
In my case, some user interaction produces new values for the bindable variables "someDataProvider", and "someSelectedItem". However, when flex renders the DropDownList, the control's selected value is empty.
The reason for this is that the DropDownList's "selectedItem" property gets bound before the "dataProvider" property. The "dataProvider" needs to be bound first for "selectedItem" to be valid, this is because the new "selectedItem" points into the new "dataProvider".
what is the best practice for updating bindable properties in a specific order? I've come up with a few ways (e.g. using a valueCommit handler), but I wanted to see what the community had to say.
I have the following code:
<fx:Script>
<![CDATA[
import shared.GlobalsManager;
[code].....
Is it possible to give move effect on a UITextField.
var aminolabel:UITextField;
var aminoLabelMove:Move = new Move(aminolabel);
aminoLabelMove.xFrom = 0;
aminoLabelMove.xTo = 100
aminoLabelMove.duration = 1300;
aminoLabelMove.play();
i am using a UITextField with multilines and want to add line specing as i need how to do so in flex action script;
View 1 RepliesI am rendering html in a Flex 3.x UITextField. The problem I am facing now is that when punctuation is at the end of a word, it can sometimes be wrapped to the next line.
For example:
That which doesn't kill me makes me stronger ,so I became a developer.
This seems like a bug in the algorithm to me. Is there a workaround?
How would I go about Embedding SubScript/SuperScript fonts in a Flex UITextField ? I have already downloaded the required fonts. I need to make them work in a UITextField in Flex. I have tried using CSS/Stylemanager etc. , and tried using createInFontContext also... Still it does not work. The fonts only work if they are installed on the user PC. i.e. they do not get embedded in to the application.
View 2 RepliesI am migrating an application from Flex 3 to Flex 4. In some cases there are popup windows of which the width and height is bound to the application width and height.
[Code]...
