[flexcoders] Re: Method for a Datagrid Button Itemrenderer
I typically use code like this to call a method in the parent MXML page that contains the dataGrid... mx:AdvancedDataGridColumn width=80 headerText=Launch dataField=contentURL mx:itemRenderer mx:Component mx:Button label=Launch click=parentDocument.goDownload();/ /mx:Component /mx:itemRenderer /mx:AdvancedDataGridColumn Don --- In flexcoders@yahoogroups.com, Angelo Anolin angelo_ano...@... wrote: I know someone has encountered this before. Better to rephrase this one I guess. I have an MXML file, where I have a method. In that MXML file, I have a datagrid, where one of the columns, I created an external itemrenderer. The itemrenderer is a button. When I click that button, I want that button to call the method in the MXML file (so that I could re-use the button on other datagrids). Thanks. From: Angelo Anolin angelo_ano...@... To: flexcoders@yahoogroups.com Sent: Mon, 16 August, 2010 13:54:33 Subject: [flexcoders] Method for a Datagrid Button Itemrenderer Hi Flexcoders, I have a datagrid and an button itemrenderer named btnRenderer.as I have set this button as an itemRenderer in one of my datagrid columns. mx:DataGridColumn id=dgColCancel width=100 itemRenderer=btnRenderer / I need to respond to an click event on button, passing some of the value from the dataProvider attached to the datagrid. Should I place my codes on the mxml file where my datagrid is declared? How would the btnRenderer know that the method is called? Thanks.
[flexcoders] Re: Flexgateway sandbox violation
Thanks Alex! Saw your post on the Adobe forums and responded there... http://forums.adobe.com/message/3019978#3019978 explicitly loading it via my IP address worked. Don --- In flexcoders@yahoogroups.com, Alex Harui aha...@... wrote: You might want to try an explicit call to load the policy file at http://www.rodomain.com/crossdomain.xml before an RO calls are made. On 7/31/10 10:13 AM, fusionpage fusionp...@... wrote: I have a flex app that is shared by many virtual sites www.domain1.com/myapp, www.domain2.com/myapp, www.domain3.com/myapp, etc. All the domains have virtual directories pointing to/ myapp.myapp.swf calls remoteObject using the same ro endpoint http://www.rodomain.com/flex2gateway/ . I want all of these virtual sites to share the same myapp but be able to call the same ro endpoint to ColdFusion. Of course, I'm getting sandbox violation that domainX.com cannot load data from http://www.rodomain.com/flex2gateway/ . How do I allow all of the virtual domains to make the data calls to the same ro endpoint url? I do have a crossdomain.xml file in the root of the server, but that does not resolve the problem. I assume I need something in my Flex code to make it work, but the many postings I find on the internet related to crossdomain are outdated. My environment is Flash 10.1, Flex 4.1, ColdFusion 9, Windows 2003 Server/IIS. Thanks! Don -- Alex Harui Flex SDK Team Adobe System, Inc. http://blogs.adobe.com/aharui
[flexcoders] Flexgateway sandbox violation
I have a flex app that is shared by many virtual sites www.domain1.com/myapp, www.domain2.com/myapp, www.domain3.com/myapp, etc. All the domains have virtual directories pointing to/ myapp.myapp.swf calls remoteObject using the same ro endpoint http://www.rodomain.com/flex2gateway/ . I want all of these virtual sites to share the same myapp but be able to call the same ro endpoint to ColdFusion. Of course, I'm getting sandbox violation that domainX.com cannot load data from http://www.rodomain.com/flex2gateway/ . How do I allow all of the virtual domains to make the data calls to the same ro endpoint url? I do have a crossdomain.xml file in the root of the server, but that does not resolve the problem. I assume I need something in my Flex code to make it work, but the many postings I find on the internet related to crossdomain are outdated. My environment is Flash 10.1, Flex 4.1, ColdFusion 9, Windows 2003 Server/IIS. Thanks! Don
[flexcoders] Spark List item 0 not visible
Strange. DataProvider contains an item at zero, but it doesn't appear visible
in the list. Selecting the item works fine and the data is there... it is just
not visible. Is this a known bug? It occurs with/without the custom skinClass.
Any ideas?
Don
s:List id=topLeft creationComplete=topLeft_creationCompleteHandler(event)
dataProvider={photosDP} borderColor=0xff borderAlpha=0.3
skinClass=TouchListHorizontal width=100% height=100%
itemRenderer=ImageRendererPhotosThumb horizontalCenter=0 verticalCenter=0
s:layout
s:HorizontalLayout horizontalAlign=center
verticalAlign=middle /
/s:layout
/s:List
[flexcoders] Re: Spark List item 0 not visible
This question was answered by Adobe on their Flex forum.
You have set an explicit width of mx:Image in your list renderer
http://forums.adobe.com/message/2916563#2916563
Just wanted to close the loop here in case others see the same issue.
Don
--- In flexcoders@yahoogroups.com, fusionpage fusionp...@... wrote:
Strange. DataProvider contains an item at zero, but it doesn't appear
visible in the list. Selecting the item works fine and the data is there...
it is just not visible. Is this a known bug? It occurs with/without the
custom skinClass.
Any ideas?
Don
s:List id=topLeft
creationComplete=topLeft_creationCompleteHandler(event)
dataProvider={photosDP} borderColor=0xff borderAlpha=0.3
skinClass=TouchListHorizontal width=100% height=100%
itemRenderer=ImageRendererPhotosThumb horizontalCenter=0
verticalCenter=0
s:layout
s:HorizontalLayout horizontalAlign=center
verticalAlign=middle /
/s:layout
/s:List
[flexcoders] Re: mutitouch for HP DX9000 Touchsmart pc?
My HP Touchsmart 300 works fine with both Gestures and raw touch points with Flash 10.1 and Air 2. It worked out-of-the-box without having to go to the control panel Touch tab to enable touch. I suspect your model uses the same NextWindow drivers. Your model might require enabling touch drivers. Don --- In flexcoders@yahoogroups.com, markflex2007 markflex2...@... wrote: I use windows 7 with HP DX9000 Touchsmart pc. I have install flash player 10.1 and Air 2.0. but when I didi followings trace(Multitouch.supportsGestureEvents); trace(Multitouch.supportsTouchEvents); trace(Multitouch.supportedGestures); trace(Multitouch.maxTouchPoints); I get the results false false null 0 How I can do now for this case? which touch pc support flash player 10.1? Thanks Mark
[flexcoders] Flex 4 image scaling for multiple devices/screens
I can't seem to get the image to appear when assigning the source at runtime? Works fine if the source is hardcoded. My remoteobject calls loads to a list of images. On select of an image, I want to display the selected image and have it scale. What is the best way to do this in Flex 4? I know how to pass the selected image source, I just can't get it to load in a s:bitmapImage? I tried to dynamically add an @Embed in AS3 and couldn't get it to work. I tried wrapping it with an s:Graphic and that didn't help. mx:Image works fine, but I'm not aware of any scaling features for it. I'm hoping bitmapImage will give me better looking graphic/photo at different sizes. So, let me back up: I have a touch screen application that could run on multiple devices/screens and resolutions. I want my image to scale based on the device/screen resolution. What is the best way to do this? Thanks, Don Kerr
[flexcoders] Re: Doug Mccune's FOAM Physics example on Flex 4/Air 2
Bill White has a nice example of spark components with Physics
http://www.billdwhite.com/wordpress/?p=256#more-256
Thanks Bill!
Don
--- In flexcoders@yahoogroups.com, fusionpage fusionp...@... wrote:
I tried to open the FOAM physics form example (built for Flex 3) in Flex
4/Air 2
http://dougmccune.com/blog/2008/02/26/examples-from-my-360flex-session-using-open-source-community-projects/
And get the compiler errors below. I've posted a comment on Doug's blog but
thought I'd also bounce it off this list. Any ideas?
compiler error is on this line in the setGravity function
_gravityForce = new Gravity( new Vector(xValue, yValue) );
public function setGravity(yValue:Number=0, xValue:Number=0):void {
if(_gravityForce) {
foam.removeGlobalForceGenerator(_gravityForce);
}
else {
foam.simulate();
}
_gravityForce = new Gravity( new Vector(xValue, yValue) );
foam.addGlobalForceGenerator(_gravityForce);
}
here are the errors:
1067: Implicit coercion of a value of type __AS3__.vec:Vector to an unrelated
type org.generalrelativity.foam.math:Vector. PhysicsContainer.as
1137: Incorrect number of arguments. Expected no more than 0.
PhysicsContainer.as
I'm using Flash Builder 4 with Flex 4 SDK w/ Air 2 SDK.
Looks like an SDK compatibility issue
Any ideas?
Thanks,
Don
[flexcoders] Doug Mccune's FOAM Physics example on Flex 4/Air 2
I tried to open the FOAM physics form example (built for Flex 3) in Flex 4/Air 2
http://dougmccune.com/blog/2008/02/26/examples-from-my-360flex-session-using-open-source-community-projects/
And get the compiler errors below. I've posted a comment on Doug's blog but
thought I'd also bounce it off this list. Any ideas?
compiler error is on this line in the setGravity function
_gravityForce = new Gravity( new Vector(xValue, yValue) );
public function setGravity(yValue:Number=0, xValue:Number=0):void {
if(_gravityForce) {
foam.removeGlobalForceGenerator(_gravityForce);
}
else {
foam.simulate();
}
_gravityForce = new Gravity( new Vector(xValue, yValue) );
foam.addGlobalForceGenerator(_gravityForce);
}
here are the errors:
1067: Implicit coercion of a value of type __AS3__.vec:Vector to an unrelated
type org.generalrelativity.foam.math:Vector. PhysicsContainer.as
1137: Incorrect number of arguments. Expected no more than 0.
PhysicsContainer.as
I'm using Flash Builder 4 with Flex 4 SDK w/ Air 2 SDK.
Looks like an SDK compatibility issue
Any ideas?
Thanks,
Don
[flexcoders] Re: Doug Mccune's FOAM Physics example on Flex 4/Air 2
I downloaded the latest FOAM version
http://code.google.com/p/foam-as3/
and it looks like the same Vector-related errors also occurs in all their
examples.
Looks like FOAM needs to be updated to support Flex 4/Air 2. Maybe the Vector
name used in FOAM conflicts with a new Vector class in Flex 4 or something???
Maybe there is a quick fix to solve this one Vector error?
Don
--- In flexcoders@yahoogroups.com, fusionpage fusionp...@... wrote:
I tried to open the FOAM physics form example (built for Flex 3) in Flex
4/Air 2
http://dougmccune.com/blog/2008/02/26/examples-from-my-360flex-session-using-open-source-community-projects/
And get the compiler errors below. I've posted a comment on Doug's blog but
thought I'd also bounce it off this list. Any ideas?
compiler error is on this line in the setGravity function
_gravityForce = new Gravity( new Vector(xValue, yValue) );
public function setGravity(yValue:Number=0, xValue:Number=0):void {
if(_gravityForce) {
foam.removeGlobalForceGenerator(_gravityForce);
}
else {
foam.simulate();
}
_gravityForce = new Gravity( new Vector(xValue, yValue) );
foam.addGlobalForceGenerator(_gravityForce);
}
here are the errors:
1067: Implicit coercion of a value of type __AS3__.vec:Vector to an unrelated
type org.generalrelativity.foam.math:Vector. PhysicsContainer.as
1137: Incorrect number of arguments. Expected no more than 0.
PhysicsContainer.as
I'm using Flash Builder 4 with Flex 4 SDK w/ Air 2 SDK.
Looks like an SDK compatibility issue
Any ideas?
Thanks,
Don
[flexcoders] Re: DataGrids with large datasets Tips Tricks?
Thanks Alex. This is very helpful and exactly in the direction of what I'm seeking to understand. I appreciate it. Have any recommended resources to learn more? Thanks, Don --- In flexcoders@yahoogroups.com, Alex Harui aha...@... wrote: It doesn't matter if you add columns at run-time or not. The main factor is how many column you are displaying and how many rows will be displayed. And note that is different from the total set of columns that could be displayed and total number of data items: Example: I have a 1 person database with 100 different statistics on each person. I set up my DataGrid to have 100 columns representing each statistic, but because it won't fit on the screen I set horizontalScrollPolicy=true. Still, the DG is likely to be full screen so it can show about 20 columns and 30 rows. Note that if do not set horizontalScrollPolicy=true, the DG will cram all 100 columns on screen. This makes a significant difference. Instead of 20x30=600 renderers, it is 100x30=3000 renderers. The DG will take more than 5 times longer to set up and render 3000 renderers instead of 600 renderers, memory usage will go way up, and even things like mouse tracking and CPU utilization at idle time will be impacted. The next important thing to remember is that DG has a very generalized update mechanism. If it detects a change to any of the 1 person records, it will refresh all of the renderers on the screen. It does not optimize for whether that renderer is associated with that data item because labelFunctions and custom renderers make it possible for any data item change to affect every renderer. This is very inefficient, but we have to be this conservative otherwise your renderers could miss updates. This is important in how you setup and maintain your dataProvider. A common mistake I see is to take some XML, make a new ArrayCollection, and loop through the XML creating Person records and using push/addItem to add it to the ArrayCollection. Every time you do that, the AC generates a change event, and if the DG is already bound, it is going to try to refresh all of its renderers. So, aggregate changes. If you are converting XML, make an array, convert items and push them on the array and then set the whole array into the ArrayCollection's source. HTH, On 3/22/10 4:28 PM, fusionpage fusionp...@... wrote: Does anyone have any tips or tricks, in general, about optimizing the Flex client for best performance in populating/rendering large datasets in an AdvancedDataGrid? I'm specifically NOT asking about improving the server-side. I'm trying to understand what the factors are on the Flex client-side that impact how fast data loads/renders into an ADG, when the columns use in-line itemrenderers and/or the columns are added at run-time. Are there any significant difference in performance when comparing different design patterns or ways of generating the datagrid? e.g. does it matter if it generated via pure AS3, or if you use MXML? Is performance the same no matter which design pattern one uses? Assume the data is loading via a RemoteObject call. In my case via a ColdFusion CFC. Any tips, tricks, or links so I can learn more? So, far, in my experience, most of the performance issues come from the server-side, but I may be ignorant on the impact of the design on the Flex side. Thanks, Don -- Alex Harui Flex SDK Team Adobe System, Inc. http://blogs.adobe.com/aharui
[flexcoders] DataGrids with large datasets Tips Tricks?
Does anyone have any tips or tricks, in general, about optimizing the Flex client for best performance in populating/rendering large datasets in an AdvancedDataGrid? I'm specifically NOT asking about improving the server-side. I'm trying to understand what the factors are on the Flex client-side that impact how fast data loads/renders into an ADG, when the columns use in-line itemrenderers and/or the columns are added at run-time. Are there any significant difference in performance when comparing different design patterns or ways of generating the datagrid? e.g. does it matter if it generated via pure AS3, or if you use MXML? Is performance the same no matter which design pattern one uses? Assume the data is loading via a RemoteObject call. In my case via a ColdFusion CFC. Any tips, tricks, or links so I can learn more? So, far, in my experience, most of the performance issues come from the server-side, but I may be ignorant on the impact of the design on the Flex side. Thanks, Don
