Actionscript :: DataGrid: Get Data Object From Row Index & Vice Versa?
Feb 11, 2011
Using a standard Flex DataGrid, is there an easy way to determine the grid row index given the data object or index of the data object in the data provider? On the flip side, is there a way to get the index of an object in the data provider based on the DataGrid row index?
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test.fla's document class is Test.as
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directly,
using something called Casting (??),
assigning an instance name,
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package com.hello.test.test
{
import flash.display.Sprite;
import flash.events.Event;[code]........
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Jun 21, 2011
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[Code]....
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Dec 5, 2011
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Jan 12, 2010
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Mar 31, 2011
I am trying to create an animation that will show the basics of steering a sailboat. The idea is that there will be a top view of the boat with the tiller and rudder very pronounced. I want the learner to be able to click and drag the tiller one direction or the other, while the tiller is dragging I want the rudder and the boat to rotate the proper direction. Example, I want the boat to go left I will push the tiller to starboard and the rudder will rotate clockwise and the boat will turn left. There doesn't need to be forward motion by the boat in my head, I think that as long as the boat rotates it would be fine.
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Jul 4, 2009
i have a loader.swf contains important functions and variables that loads 10 external swf-s (site compontents) in a container MC, those external swf-s also have some important functions and variables.my problem is that i don't know how to access the variables and functions declared in the main swf ( loader.swf ) from the loaded swf-s.so the hierarchy looks like:
Code: Select all
main swf ( loader.swf )
childAt(0) ( container MC )[code].........
1. ( for example ) : how can I access/refer the functions and variables declared in the "main swf" ( loader.swf ) from the "2. loaded swf" ?
2. how can i access/refer the functions and variables declared in the "2. loaded swf" from the "1. loaded swf" ?
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Jun 22, 2011
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Jan 18, 2007
How do you get the selected index in a datagrid, thats it
by the way the actual situation is that I'm tryin to show the data of a selected row in a datagrid, when a row is selected the current slide is set as invisible and the message_view slide is made visible and the data is shown in a text box. e.g.
on_datagrid_click_event (
text_box.text = data_at_selected_index;
this._visible = false;
_parent.messageView._visible = true;
}
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Nov 24, 2009
Is it possible to dynamically show row index for DataGrid rows ?
I have a static ArrayCollection which is set to be DataGrid's data provider and I would like to always have row numbering for each populated row (e.g. in a column called "#").
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May 14, 2011
linedataColl is an AC that contains 100+ of rows extract from CSV, I wish to add item into SuperDataCollection object by object but the only problem was I'm unable to see any data display in "S" which is a datagrid. What wrong with my code?
var superDataCollection:ArrayCollection = new ArrayCollection();
var dc:ArrayCollection = new ArrayCollection();
var di:Object = new Object();[code]......
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Mar 2, 2011
It would be an easy question, but property 'selectable' is set to 'false' and therefore selectedItem is always null.
In each row I have 3 buttons. When I click a button, I need to extract data corresponding to clicked row.
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Jul 7, 2011
I am performing a find operation in a datagrid on one of the columns. After I find the row containing the item, I make that as the selected index row, which highlights it. But now I also want to scroll the datagrid down or up (if the item is out of screen scope) to show that selected item automatically on this find operation.
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Jan 16, 2012
I am trying to use the same custom renderer for all the columns in a spark DataGrid. I need to know the dataField or columnIndex based on which I can change state in my custom itemrenderer.
Earlier in mx:DataGrid, this can be achieved by extending the MXDataGridItemRenderer which implements IDropInListItemRenderer and hence dataGridListData property is available.
But using the spark DataGrid, I am extending the GridItemRenderer which DOES NOT implement the IDropInListItemRenderer and hence unable to access dataGridListData property. I have tried to write an action script class extending GridItemRenderer and implementing dataGridListData but flex throws an error in the set function of this variable.
// Sample itemRenderer used for mx:DataGrid [Working Code]
<fx:Script>
<![CDATA[
import mx.events.FlexEvent;
[Code]....
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Feb 16, 2011
I have an array collection as the dataprovider to a datagrid. When I change a value in the arraycollection, a particular row gets updated in the datagrid. I want to get the index of that particular row. How do I get it?
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Feb 20, 2011
I have a datagrid with an xmlListCollection bound to it:
<mx:DataGrid id="dgCompetente" includeIn="Competente" x="10" y="66" width="547" height="468"
change="dgCompetente_changeHandler(event)" dataProvider="{colCompetente}"
editable="false">
[Code]......
I want the selectedIndex to remain the same. So, if I delete item 2, the next in the list should be selected. The problem is that if I delete item 2, item 3 will be selected and I have no idea why.
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Jan 10, 2012
I've got a Gridcolumn in a Datagrid (Spark). The Column's dataprovider is a Number value that gets updated via Binding.Now, without an item renderer the cell displays the correct values.If I set an item renderer, I can't access the values in this renderer.My renderer looks like this, so nothing really do here (for now) but to trace the value, but the value is always NaN.
<?xml version="1.0" encoding="utf-8"?>
<s:GridItemRenderer xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" width="100%" height="100%" >[code].......
without the renderer, the column displays the correct values, so apparently the DefaultGridItemRenderer works fine.As requested, here is my Datagrid;
<s:DataGrid id="dataGrid" dataProvider="{_listItems}">
<s:columns>
<s:ArrayList>[code]..........
_listItems is an ArrayList with instances of a model class, which has (amongst others) a property called change of type Number.
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Dec 4, 2009
I have a DataGrid whose dataProvider is an Array of int Arrays (each with different lengths). Since each row has variable size (and I want to display all the data), I decided to extend DataGridColumn and overwrite the itemToLabel function to be able to display the data. The problem is that I also need to display the data differently depending on the int value.
I believe the only solution is to write an itemRenderer, but the only input the itemRenderer.set(data) function receives is the entire int Array. I believe I need either the exact string returned by itemToLabel or the column index of the cell the itemRenderer is for (to basically do the same parsing I implemented in itemToLabel).
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Jan 11, 2010
I have a bunch of objects that i add to an array.Each of these objects know of their position in the array.Each of these objects can remove themselves from the array with the slice command.example would be great, was thinking something along the lines of hashtable, but couldent find one in the docs.Speed is of importance. The objects are entities in a game im making, so looping through the entire array to find themselves is not an option.
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Apr 9, 2010
Like I have a parent with 5 children which are the same type of object, like the same class. Is there a function or property that tells me what index this particular child is in its parent? Like this child is the 3rd child in its parent.
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