Flex :: Write A DataGrid Programmatically?
Aug 10, 2011
I have this code but I am trying to convert this to actionscript so I render this programaticaly but I failed. how do i write this on AS?
<mx:DataGrid allowMultipleSelection="true" id="dg_disk" dataProvider="{people}" height="100%" width="100%" selectedIndex="0" x="50" y="50">
<mx:columns>
<mx:DataGridColumn dataField="name"
[Code]...
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Jan 28, 2010
I have a question I came up with 3 days ago about how to do the blue underlining of a datagrid row programmatically. I thought to have found the solution, with just adding the column and row Indexes to the datagrids editedItemPosition Property.It turned out, that this is just practical if you want to be able to edit the grids row right away. But what if I just want to underline it with the blue color?Additionally how to detect that a list based Item got this kind of selection? es there a event to detect that? whats the name of this kind of selection?
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Feb 11, 2011
I have a Datagrid that is being populated by an ArrayCollection (rows) of Arrays (columns).I need to update the headerText of each column based on a List that will correspond with the total number of items within each array in the arraycollection. What is the best way of doing this? I know that I can set a listener in the List and update the headerText using (matrixDatagrid.columns[i] as DataGridColumn).headerText but I am looking for a cleaner solution.
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Jul 24, 2011
What is the equivalent of editedItemPosition for the Spark datagrid?
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Jan 25, 2010
I have two datagrids which should do everything synchronic except the data entry. I already managed to make them scroll synchronic by using the scroll event. My question is now how to select a item of a datagrid only programmatically, and how to get the mouseover effect and underlining the corresponding row with a bright blue color?
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Jun 14, 2011
I'm new to Flash and PHP. I'm using the FlashBuilder with PHP product. I have a data grid that is connected to a PHP script that retrieves and updates data via the 'Enable Data Management' function. If I modify data on the grid by using the screen and call .commit(), everything works OK.
However I would like to programmatically change some of the values in the data that underly the grid and have those changes get back to the update function in the PHP script when commit(). is called. But I can't figure out how to change the underlying data.
Here's the code I've tried: (the object that I pass back and forth to the PHP script is call MailPiece. I want to set the WORKORDERNUMBER field on each row of the data)
[Code]...
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Jan 24, 2012
I'm using the Spark DataGrid for the first time and finding it generally very usable.There's something I'd like to do with the contents of my grid now that I've drawn it though and I'm a bit stuck as how to proceed.I'd like to make a function that runs through each cell of a certain column in the DataGrid, that checks each value against an Array of predefined values; if it finds a match, it should then highlight the cell as conflicting, by changing its colour.I know you can access a particular cell's item renderer, by using the getItemRendererAt() function, and passing the column and row indices. But I can't see how I would, for example, loop through the values in each column
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Jul 6, 2011
I have a spark skinnable component which contains a datagroup with images. The datagroup is scrolled by hovering the mouse over it. Everything works fine except one thing: after I change the datagroup provider, I need to scroll down automatically. The problem is the images are not loaded immediately after I set the provider so (contentHeight - height) does not yet represent the actual maximum scrolling position. Is there an easy way of telling the datagroup to scroll down as its content loads? Because the workaround seems to be not so straightforward. This is the code for scrolling(thumbnailStrip is my datagroup):
[Code]...
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Feb 14, 2010
I've added an eventListener to the COLLECTION_CHANGE event that is fired when the grid is finished resorting the items in its dataProvider, after the user clicks on a column header:MyType (myDataGrid.dataProvider).addEventListener(CollectionEvent.COLLECTION_CHANGE,onDataGridResort);
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Mar 15, 2010
I am working on a problem since a week soon, but I still couldn't make it work as expected. I have a DataGrid which has HBox with a CheckBox an a Label as itemRenderer (see Code below). When I tap in to the Cell the standard itemEditor pops up and lets you enter the content of the label. Thats the standard behavior. I works fine except for 2 problems:
If I enter to much text, the horizontal srollbar pops up, and the cell is filled with that scrollbar. As you see I tried to set the horizontalScrollPolicy to off, but that doesnt work at all... I tried to do that for all the different elements, but the failure is still existent. When I have filled more than one row, there is an other mistake happening. If I tap on a row, the datagrid selects the one below that row. That's only if one line is already selected. If I tap outside the datagrid and then, tap at any row the itemEditor of the right row will show up... Is there anything now wright in the setup of my set data method?
package components
{
import mx.containers.HBox;
import mx.controls.CheckBox;
[Code]......
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Mar 24, 2010
From this (normal dataGrid)
into this (horisontal data grid)
How to turn Flex MXML DataGrid into something like Horisontal DataGrid? (may be some how with Flash builder 4?)
Keeping all stuff DataGrid has like eating data from data provider sortind dragging - droping items etc
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Oct 15, 2011
I have two datagrids:
- Division
- Members
Both have single columns. Selecting one item from Divsions datagrid should display members of that Division in the Members datagrid. But following code has some problem and Members of a particular division do not show up when respective Divsion is clicked.
Following are some snippets of the related code. Hope someone can spot an error in it.
[Code]..
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Oct 17, 2010
I'm using a dateField component (with editable = true) as an itemEditor in a dataGrid. Interestingly, when editing the textInput part of the dateField it doesn't seem to react to an ESC keydown as I would expect, i.e. reload old dateField value and give up focus. This seems to be standard for most other components, but not for as most other components do.
How would you go about implementing such behavior? I can listen to keydown == escape on the TextInput portion, but just realized that I don't know how to tell dateField to give up focus and politely close - in fact I'm not even sure that's the right strategy (maybe I should work at the DataGrid level?
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Jul 31, 2009
For poor performance reasons, the DataGrid will cache checkboxes and reuse them for different rows. If you have 50 rows, it won't create 50 checkboxes. It will create as many checkboxes at are visible, plus a few more for padding, and then reuse them as you scroll. This is why you need to explicitly manage their state. How can improve it ? How can fixed checkbox value ? i used checkbox like below But checkbox doesnot remembering the values
[Code]...
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Dec 7, 2009
I need to load several images as Bitmap or BitmapData objects. The images are hosted outside the Flex project, and they're referenced by an external configuration file, so I can't embed them. Because the images won't be displayed directly to the user (they're being added to a PDF that is generated for download), creating a grouping of Image objects, attaching them to the application, and waiting for their LoadComplete handler to fire seems inefficient.
What is the best way to load these images into an application? Programatically load images in it?
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Mar 17, 2010
I have I datagrid, on which I want to select multiple rows on a other user interaction than the one intended by the Programm. I'm wondering, whether I can programmatically select some rows depending only on code?
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May 4, 2010
how can I assign the stroke to my LineSeries, programmatically in Actionscript ?<mx:LineSeries stroke="{new Stroke(0xCC33CC, 2)}"/>How is it in Actionscript? LineSeries.stroke doesn't exist
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Jun 10, 2010
I'm trying to figure out how to in as3 (not mxml) add views to a view stack.For example I have a view component like so[code]I've being trying to add it to a viewstack in the following way.[code]I'm aware I have to assign ID's but for now I just want to get the view in there
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Feb 17, 2011
I would like to know the correct way to close an AIR application programmatically. In my Spark WindowedApplication I have:this.addEventListener( Event.CLOSING, shutdownApp );and of course an implementation of the shutdownApp method (which basically tidies up temporary files).his works fine for the top-right close button of the window. However I also have functionality which needs to shutdown the application. Within the code I have called:NativeApplication.nativeApplication.exit();However this doesn't trigger the Event.CLOSING method, and so my temporary files are not cleared up. Should I not be calling nativeApplication.exit ? If so, what should I call instead? I'd rather not have to call my shutdownApp method before the NativeApplication.exit() as this doesn't feel quite so elegant.
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Sep 2, 2011
I have various components that are skinned through a programmatic skin. The skin class references a singleton class that holds various colors to be applied to different aspects of the component. The singleton class has default colors set to variations of black/grey etc. I'm loading in custom colors from an XML file that are then loaded into the singleton. I'm applying the custom skin through a css stylesheet that is included in the main Application mxml.
The problem is that when the swf initially loads, the components that are drawn on screen are black and don't reflect the changes in color loaded from the XML file. I have some dropdown windows that show on button clicks and those dropdowns do reflect the correct colors from the XML file. Therefore, the system is working correctly, but the initial drawing of components obviously happens before the XML is loaded and applied to the singleton.
My question is, is there a way to apply a skin to an element programmatically by calling the constructor?
I have this in my css file:
.PanControlsBackground {
borderSkin:ClassReference('skins.buttons.PanControlsBackground');
}
[Code]....
or something to that effect? This way, I can remove the loading of the skins in the css file and control when they are instantiated to ensure that the correct colors are applied before displaying the various components.
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Nov 8, 2009
I need to programmatically add a set of controls with some amount of pixels between them. I can't seem to find how to do this in the Flex docs.
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Dec 31, 2009
In Flex you can stream microphone audio to an FMS/Red5 server using NetStream.attachAudio, which requires a Microphone object. Is it possible to stream audio through the NetStream from somewhere other than a Microphone? For example, from a file/embedded resource?
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Feb 11, 2010
How to remove validation programmatically from flex componentThis is my method
public static function validateRequired(txt:TextInput, errorMessage:String="This field is required"):Boolean
{
[code]....
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Mar 10, 2010
I created an application as part of an ASP.NET site. I would like to receive error notifications in my inbox whenever something goes wrong with that flash application.As I do not have control over our mail server (which has a different domain name), I cannot establish a cross domain policy allowing me to send error emails to my inbox.Instead, thought I'd send a request to an ASP.NET handler that sends an email on behalf of the flash app.Now the problem: the error report should include a screenshot of the flash application at the time the error occurred. The FileReference class however only allows file uploads with user interaction (browse dialog) and cannot be used programmatically to send the screenshot to my ASP.NET handler. The plain old POST back only allows files up to ~200K.
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Jun 22, 2010
Consider the following mx:TextArea <mx:TextArea id="textArea"/>
periodically being updated with new lines of text using ..
textArea.text += newLineBeingAdded + "
";
how do I make sure the textarea is scrolled down to the bottom so that the last line added is visible to the user?
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Aug 13, 2010
How to programmatically enlarge a flex 3 button's hitArea. Is there some function that I can override? There is no function in the button class called hitArea. What I have done is, I have created a programmaticskin for a button. The form of the skin consists out four arrows. In between the arrows there is nothing (meaning transparent). Because of the way the skin is shaped, it's difficult to click on the button. The skin has alter the buttons hitArea. What I'm looking for is a way to enlarge the hitArea and alter the hitArea shape in to an square. (the hit area must ofcourse still be invisible).
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Aug 18, 2010
I have a chart with 2 line series in it.So, "Jan" (x-axis point) will have 2 Y-axis pointsThe problem :Is there anyway to force flex to show tooltip on both series simultaneously?
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Dec 3, 2010
I'd like to be able to tell my ADG to set a specific row to be highlighted and update the adg rendering to match such new value. Note: highlight != selected.
I thought perhaps setting highlightUID would do the trick, but I can't seem to get the ADG rendering to update.
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Oct 19, 2011
Make strikethrough text programmatically in it? I know I can do this in MXML[code]....
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Oct 24, 2011
I am experimenting with e4x. I could programmatically add an attribute to an Xml by doing something like this :
[Code]...
now i have added a name attribute to it programmatically because even though the xml had no attribute called name, after the statement above, it automatically has one now. My difficulty now is how do i , as well, remove the name attribute i have inserted programmatically again?
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