Actionscript 3 :: Force Flex Datagrid To Scroll
Dec 15, 2009
Is there a way to make the datagrid scroll if it's width exceeds it's parent container (instead of making the parent container scroll?) I have a datagrid with a fixed column, and of course I want the scrollbar to appear for the datagrid and not the enclosing HBox. I already set minWidth of the HBox to 0, tried autoLayout=false, but with no effects. The datagrid is dynamically created in AS3, so the enclosing container.
Maybe I did not express my needs clearly - the content of the datagrid should not be wider than the datagrid itself. I just want to surrounding Canvas of the Datagrid to not have any scrollbars and let the datagrid itself scroll. But just setting the scrollpolicy to off on the Canvas will not yield to scrollbars on the datagrid, it will rather clip the data.
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Dec 2, 2009
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Jul 7, 2011
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Jun 2, 2009
I'm having an issue with a custom ItemRenderer I've written for a DataGrid. With this ItemRenderer, it's possible that the contents could exceed the width and height of the DataGrid cell - and when this happens, scroll bars appear, letting me scroll the individual cell.What I would like, however, is that when the contents of the cell are too large, the entire DataGrid scrolls, rather than the individual cells.
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Dec 15, 2011
I have a spark datagrid on a mobile application, I set the
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Sep 1, 2011
I have 2 questions: 1. What would be the event to capture the fact a scroll has taken place in a datagrid?
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Sep 8, 2008
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Nov 30, 2007
autoscroll functionality in Flex2's DataGrid while dragging an element row in it. Is there such a functionality or not?
I mean, I have a DataGrid which contains a collection of rows. The collection is longer that the DataGrid could fit, hence there is a vertical scrollbar that allows to get to the rest of rows. I have enabled the functionality of moving-by-draging to be able to change the order of rows in the DataGrid (see the simple code below).
Now, let's say I want to move the first (topmost) row to the last (bottom) position of the collection. When the top row is displayed, the bottom one is not visible (not without moving the scrollbar). So when I drag the top row, I cannot drop it beyond the few currently visible rows. Surely I could drag a bit and then scroll to bottom and then drag a bit more, but that's not the point. The point is - is there a functionality of autoscroll implemented in Flex2 DataGrid, where the collection would scroll itself automatically to allow one to drag beyond the few visible rows?
In Adobe's official PDF document "Flex2 Developer's Guide", section "Using drag-and-drop with list-based controls" I've found this sentence:
Quote:
If the control has active scroll bars, hovering the mouse pointer over the controls top or bottom scrolls the contents.
Well, it suggests that there should be this functionality I ask about. But it doesn't work for me.
Here's the simple code that builds the DataGrid in Flex2, that fails to autoscroll, if you care to check it:
[Code]...
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May 16, 2011
I'm trying to create a layout not too different from the feed reader sample.The problem I'm having is that I'm finding the documentation unclear. There are so many different types of layouts that I don't know which one to use when.In the example, on the right side there are a few horizontal panels:
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Nov 18, 2009
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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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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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Jan 11, 2010
I have a situation where I need my swf to load from a domain. Currently my flex set up always loads a SWF from file [URL]...
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Apr 4, 2010
My operation system is Window XP in Chinese. I'm running flex sdk > asdoc in command line. Asdoc picks up the system default language. How can I force it to be run in English language environment?
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Jan 10, 2011
I have an app w/ a login screen. When the user hits "enter", the state changes to "login" & a child component is triggered to load (though the child stays invisible at the moment). The child contains many functions that the user needs upon logging in (ie their screenname & settings are retrieved from a database). The following is included in 'Parent':
<local:comp id="localComp" includeIn="login" includeInLayout="false" visible="false"/>
<mx:Button label="login" click="currentState='login'"/>
<mx:Button label="logout" click="currentState='Default'"/>
My problem is when a user logs out (state changes to 'Default') & then logs back in (state changes back to 'login') the child doesn't get "triggered" again & the functions w/in the child don't reload. Is there a way to force my child to refresh?
Note: While it would be easier to just move the child's functions to the parent it is complex...I moved these functions to the child to make it easier to follow
UPDATE: I even tried adding an "exitState" to my state:
<s:State name="login" exitState="removeElement(localComp)" />
This doesn't work either, as I get an error: "RangeError: Index 0 is out of range."
UPDATE: Even though you are allowed to call a child's function from a parent, my problem is that the child needs to be "created" in order to not show errors. It makes no sense to me why the flex team would make something like removing & adding children so complicated.
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Jan 28, 2011
I'm using an iFrame in a Flex 3 project. The problem is that if the user opens my site in a small browser window, they don't get scrollbars. How can I solve this problem? Is there a way to force the browser to put up scrollbars?
If I set the main app to horizontalScrollPolicy="on" verticalScrollPolicy="on" or to "auto", then as you scroll down, the iFrame is stuck to the top of the browser window and obscures the content.
In the main app:
[Code].....
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Jul 22, 2009
I have a page-like flex application. In my main application is a holder (a canvas) that displays all the pages. The problem is that the components that are loaded inside the holder are bigger than the holder is when the main application starts. The holder height is set to 100% but still he gets scrollbars when I load a bigger component inside of him then himselHow can I solve this problem? And if it isn't solvable would it work correct if I use a viewstack?the holder looks like this:
<mx:canvas height="100%">
</canvas>
But the end of the application is 500 pixels lower so canvas height is 500 pixels high. Now I put a new child inside the holder that is 1000 pixels high.
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