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From "Santanu Karar (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLEX-35197) [FlexJS] Data-binding is broken or not implemented in DataGrid component
Date Mon, 05 Dec 2016 16:08:59 GMT

     [ https://issues.apache.org/jira/browse/FLEX-35197?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Santanu Karar updated FLEX-35197:
---------------------------------
    Description: 
(I've took the _DataGrid_ example that supplied within the nightly build of 0.8.0 FlexJS SDK
bundle, and I tried all my tests in that project only)

h3.Requirement

Binding is a strong feature in Flex technology. As an user I also do expect that FlexJS will
also empowers us with the same strength developing projects. While testing _DataGrid_ example
that supplies within SDK bundle, I noticed that pay-as-you-go view only available but no actual
run-time data binding (as far I tested); which is the strength that I was talking about. Is
run-time data-binding (by any _beads_ or any other way) to DataGrid component is at all available
yet? 

h3.Actual Result

Run-time data update to DataGrid UI is not working.

h3.How I Tested

I've attached the source ZIP that I supplied within SDK bundle and I modified few codes to
test my requirement. The places which I've changed as follows. 

*Product.as*
{code}
// since I was trying to update one field at least to DataGrid UI, I added get/set methods
to the _image_ field
private var _image:String;

[Bindable(event="imageChanged")]
public function get image():String
{
	return _image;
}
		
public function set image(value:String):void
{
	if (value != _image)
	{
		_image = value;
		dispatchEvent(new Event("imageChanged"));
	}
}
{code}

*MyInitialView.mxml*
{code}
// Upon a button click I tried to change collection data at run-time to make effect in DataGrid
UI
private function onButtonClicked():void
{
	// 1. This part not working or updating to DataGrid UI
	/*var tmp:Product = ProductsModel(applicationModel).productList.getItemAt(1) as Product;
	tmp.image = "Modified Text";*/
			
	// 2. This part not working or updating to DataGrid UI either
	/*ProductsModel(applicationModel).productList.source[1] = tmp;
	ProductsModel(applicationModel).dispatchEvent(new Event("propertyChange"));*/
			
	// 3. Only this part worked when *SimpleBinding used instead of ConstantBinding*
	ProductsModel(applicationModel).productList = new ArrayList([new Product("ps220","Weejets",35,190,"assets/smallorangerect.jpg")]);
}

...

// DataGrid ConstantBinding bead replaced with SimpleBinding
<js:DataGrid id="dataGrid" x="20" y="30" width="400" height="300" change="dataGridChange()"
rowHeight="30">
		<js:beads>
			<js:SimpleBinding sourceID="applicationModel"
							  sourcePropertyName="productList" destinationPropertyName="dataProvider" eventName="propertyChange"/>
...
{code}

I also created a new MXML based _DataItemRenderer_ component to see if binding is working
anyway: *ProductItemRendererMXML.mxml*; But it didn't worked either. 

I discussed this at dev mailing-list (http://apache-flex-development.2333347.n4.nabble.com/Why-same-files-exists-in-multiple-places-td56983.html)
where Alex suggested that a chain of specific beads usage may help this feature, but he wasn't
sure if such beads already developed or not. 

Is there any such beads or procedure already available, or, in-development? 

  was:
(I've took the _DataGrid_ example that supplied within the nightly build of 0.8.0 FlexJS SDK
bundle, and I tried all my tests in that project only)

h3.Requirement

Binding is a strong feature in Flex technology. As an user I also do expect that FlexJS will
also empowers us with the same strength developing projects. While testing _DataGrid_ example
that supplies within SDK bundle, I noticed that pay-as-you-go view only available but no actual
run-time data binding (as far I tested); which is the strength that I was talking about. Is
run-time data-binding (by any _beads_ or any other way) to DataGrid component is at all available
yet? 

h3.Actual Result

Run-time data update to DataGrid UI is not working.

h3.How I Tested

I've attached the source ZIP that I supplied within SDK bundle and I modified few codes to
test my requirement. The places which I've changed as follows. 

*Product.as*
{code}
// since I was trying to update one field at least to DataGrid UI, I added get/set methods
to the _image_ field
private var _image:String;

[Bindable(event="imageChanged")]
public function get image():String
{
	return _image;
}
		
public function set image(value:String):void
{
	if (value != _image)
	{
		_image = value;
		dispatchEvent(new Event("imageChanged"));
	}
}
{code}

*MyInitialView.mxml*
{code}
// Upon a button click I tried to change collection data at run-time to make effect in DataGrid
UI
private function onButtonClicked():void
{
	// 1. This part not working or updating to DataGrid UI
	/*var tmp:Product = ProductsModel(applicationModel).productList.getItemAt(1) as Product;
	tmp.image = "Modified Text";*/
			
	// 2. This part not working or updating to DataGrid UI either
	/*ProductsModel(applicationModel).productList.source[1] = tmp;
	ProductsModel(applicationModel).dispatchEvent(new Event("propertyChange"));*/
			
	// 3. Only this part worked when *SimpleBinding used instead of ConstantBinding*
	ProductsModel(applicationModel).productList = new ArrayList([new Product("ps220","Weejets",35,190,"assets/smallorangerect.jpg")]);
}
{code}

I also created a new MXML based _DataItemRenderer_ component to see if binding is working
anyway: *ProductItemRendererMXML.mxml*; But it didn't worked either. 

I discussed this at dev mailing-list (http://apache-flex-development.2333347.n4.nabble.com/Why-same-files-exists-in-multiple-places-td56983.html)
where Alex suggested that a chain of specific beads usage may help this feature, but he wasn't
sure if such beads already developed or not. 

Is there any such beads or procedure already available, or, in-development? 


> [FlexJS] Data-binding is broken or not implemented in DataGrid component
> ------------------------------------------------------------------------
>
>                 Key: FLEX-35197
>                 URL: https://issues.apache.org/jira/browse/FLEX-35197
>             Project: Apache Flex
>          Issue Type: Question
>    Affects Versions: Apache FlexJS 0.8.0
>            Reporter: Santanu Karar
>         Attachments: src.zip
>
>
> (I've took the _DataGrid_ example that supplied within the nightly build of 0.8.0 FlexJS
SDK bundle, and I tried all my tests in that project only)
> h3.Requirement
> Binding is a strong feature in Flex technology. As an user I also do expect that FlexJS
will also empowers us with the same strength developing projects. While testing _DataGrid_
example that supplies within SDK bundle, I noticed that pay-as-you-go view only available
but no actual run-time data binding (as far I tested); which is the strength that I was talking
about. Is run-time data-binding (by any _beads_ or any other way) to DataGrid component is
at all available yet? 
> h3.Actual Result
> Run-time data update to DataGrid UI is not working.
> h3.How I Tested
> I've attached the source ZIP that I supplied within SDK bundle and I modified few codes
to test my requirement. The places which I've changed as follows. 
> *Product.as*
> {code}
> // since I was trying to update one field at least to DataGrid UI, I added get/set methods
to the _image_ field
> private var _image:String;
> [Bindable(event="imageChanged")]
> public function get image():String
> {
> 	return _image;
> }
> 		
> public function set image(value:String):void
> {
> 	if (value != _image)
> 	{
> 		_image = value;
> 		dispatchEvent(new Event("imageChanged"));
> 	}
> }
> {code}
> *MyInitialView.mxml*
> {code}
> // Upon a button click I tried to change collection data at run-time to make effect in
DataGrid UI
> private function onButtonClicked():void
> {
> 	// 1. This part not working or updating to DataGrid UI
> 	/*var tmp:Product = ProductsModel(applicationModel).productList.getItemAt(1) as Product;
> 	tmp.image = "Modified Text";*/
> 			
> 	// 2. This part not working or updating to DataGrid UI either
> 	/*ProductsModel(applicationModel).productList.source[1] = tmp;
> 	ProductsModel(applicationModel).dispatchEvent(new Event("propertyChange"));*/
> 			
> 	// 3. Only this part worked when *SimpleBinding used instead of ConstantBinding*
> 	ProductsModel(applicationModel).productList = new ArrayList([new Product("ps220","Weejets",35,190,"assets/smallorangerect.jpg")]);
> }
> ...
> // DataGrid ConstantBinding bead replaced with SimpleBinding
> <js:DataGrid id="dataGrid" x="20" y="30" width="400" height="300" change="dataGridChange()"
rowHeight="30">
> 		<js:beads>
> 			<js:SimpleBinding sourceID="applicationModel"
> 							  sourcePropertyName="productList" destinationPropertyName="dataProvider" eventName="propertyChange"/>
> ...
> {code}
> I also created a new MXML based _DataItemRenderer_ component to see if binding is working
anyway: *ProductItemRendererMXML.mxml*; But it didn't worked either. 
> I discussed this at dev mailing-list (http://apache-flex-development.2333347.n4.nabble.com/Why-same-files-exists-in-multiple-places-td56983.html)
where Alex suggested that a chain of specific beads usage may help this feature, but he wasn't
sure if such beads already developed or not. 
> Is there any such beads or procedure already available, or, in-development? 



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