Flex :: Setting Value In A Datagrid?
Oct 9, 2010
how to set value at a cell level in a data grid
I used the following
private function dataPanel(rowindex:Number, Var1:Number, Var1Name:String, Var2:Number, Var2Name:String, Var3:Number, Var3Name:String, Var4:Number, Var4Name:String): void {
trace("rowindex ", rowindex)
[Code]....
col1,col2, col3, col4 are id's for the 4 columns in data grid rowindex increments for value in each row...
it compiles and i get an error- it gets a strange error when i try to assign col1[].
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Similar Posts:
Oct 8, 2010
I have Flex 4 DataGrid, what I would like to do is when an cell has been edited, I would then like to walk through the values of that column and preform math on the values, e.g., I want to total up certain values.
1) How do I reference individual values of a specific column so that I may set them.
2) How do I then set those values or should I create a new column array and pop it in place of that column.
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Nov 23, 2011
I have created a search tab and by giving different inputs I am listing search objects in my datagrid. I want to color each row wrt to its type e.g For Admin Red color or red text is displayed in respected datagrid row. How can I do that, atm I am using this code for creating datagrid.
<mx:DataGrid x="170" y="10" height="238" width="318"
dataProvider="{userContacts}" id="contactsGridView">
<mx:columns>
<mx:DataGridColumn width="80" headerText="Username" dataField="username"/>
<mx:DataGridColumn width="80" headerText="First Name" dataField="firstName"/>
[Code] .....
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Oct 10, 2011
I have this spark DataGrid with five columns. my third and fourth columns represent amount (of product ordered) and price (of a unit of the product). My issue now is to set the fifth column equal to price*amount. I can't seem to find a way to do this.
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Sep 8, 2011
I have a spark DataGrid component with several columns and I want to have my application default to descending order on the first column in the DataGrid. I would like to use the built-in default sort that occurs when clicking the top header once. I have no need to sort the ArrayCollection I'm working with or change what the comparators are.I also want any user-generated sorting such as clicking on a different column's header to override the default sorting.
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Apr 24, 2007
I have 2 columns in a datagrid.Is it possible to set the 1st column's length? If so, can anyone give me direction on how to do this?
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Nov 15, 2011
Now, I created two codes. The code of （１） is displayed correctly. However, as for the code of （２）,doesn't wrap.
<mx:DataGrid id="myGrid" horizontalScrollPolicy="auto" dataProvider="{mounth}" width="100%" height="100%" variableRowHeight="true" wordWrap="true">
<mx:columns>
<mx:DataGridColumn headerText="Header1" wordWrap="true">
[Code]....
I want to display a character according to the width of DataGridColumn of DataGrid.
Is there how to display by variable length? Incidentally (1) is displayed by variable length.
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Jan 31, 2012
I am currently working on making my Flex application accessible. I have an mx DataGrid that I am using for showing complex data. Each row contains information about a person and one of the columns contains a button to "submit" that person's information. Currently if I tab to the DataGrid, it has focus on the whole thing, but I cannot tab to individual cells. For accessibility purposes, I need the user to be able to tab to each of these cells to read the information. Everywhere I've looked I've found that it seems the only way to focus on an individual cell is to set the editable property to true. However, I do not want to make the field editable, as that information should not be changed.
At the very least I would like to be able to tab to the cell that has the button ItemRendender for each person. I could set the rest of the information in the accessibilityName of that. Is there any way to accomplish this? Or am I going to have to find a more "creative" solution?
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Feb 29, 2008
How to get my data grid working so that it is set the stage.width - 250; therefore it would scale with the window when minimized.
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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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Feb 4, 2010
I am attempting to style the headers in a flex datagrid and I keep getting the warning:
Type DataGrid in CSS selector 'DataGrid' must be qualified with a namespace
What does this mean? I have gone through a bunch of tutorials and none of them have worked. It seems like changing a the colors in a datagrid should be relatively simple.
Here is a code sample:
<mx:Style>
.headerCustomStyle
{
fontWeight: "bold";
[code]....
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May 13, 2011
in Flex I have something like that: [code]and dg is ALWAYS pointing at DataGrid (even if dg1 has name DataGrid_test and dg2 = DataGrid_test2) and finally action is made on my first DataGrid (DataGrid_test).[code]and search still points at ColorColumn :/ My problem is really easy- I just want to pass to search different dataGrid on each state.But still I don't understand why it doesn't work. My search function uses algorhitm Boyer-Moor for searching through dataGrid.dataProvider for some text. If it find something then it is pushed into new array and after passing whole dataProvider I colorize rows with searched word.
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Jul 12, 2010
Here's what works with ant build.xml:
[Code]...
I tried the following values in Project > Properties > Compiler Options > Additional Compiler Options but none of them worked:
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Apr 7, 2011
How can i settings crossdomain.xml my flex project.* this is my crossdomain.xml.
<?xml version="1.0"?>
<!DOCTYPE cross-domain-policy SYSTEM "/xml/dtds/cross-domain-policy.dtd">
<cross-domain-policy>
<site-control permitted-cross-domain-policies="all"/>
[code].....
I've tried lots of different methods but my project send error message "Security error accessing url Unable to load WSDL. If currently online, please verify the URI and/or format of the WSDL [URL]"
put the file in different places
C:wampwwwMYPROJECTin-debugcrossdomain.xml
(my swf url : http://localhost/bin-debug/test.html checked http://localhost/bin-debug/crossdomain.xml its ok)
C:wampwwwcrossdomain.xml
I added the load line of the project
protected function application1_initializeHandler(event:FlexEvent):void
{
Security.loadPolicyFile("http://localhost/MYPROJECT/bin-debug/crossdomain.xml");
}
if flex server type select none everythings ok. but server type select PHP need crossdomain.xml how can i fix.
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Oct 17, 2010
Anyone know how to change a single instance of an item renderer for a Flex tree item at runtime? To reiterate, I'm not trying to change the entire tree's item renderer like this:tree.itemRenderer = new ClassFactory(ItemRenderer2);I'm trying to change the item renderer of a single tree item like this (the following code does not work):tree.selectedItem.itemRenderer = new ClassFactory(ItemRenderer2);To put it more simply, does anyone know how to reference an instance of an item renderer and set it to a new item renderer class? I've tried using the Tree's itemToItemRenderer() method with no success.
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Feb 22, 2010
How do I limit my amf sessions to flex over pyamf?
I have set up a pyamf gateway to that serves value objects that originate from a django admin panel, through sqlalchemy to my authenticated flex client. It's working great, however there is a problem. My sessions are persisting and clogging up the server, so after about 20 or so AMF sessions are authenticated, it refuses any more until I restart the server.
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Oct 21, 2010
I have a Flex Tree component in my app. I set the icons for open and close.
BUT I can't find something about changing the default background-color from white to something different.
obviously there is no background-color setable in css...
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Apr 11, 2011
I'm making a trivia in an Air application, a question, three buttons, after you choose one, the right button gets coloured green, the wrong ones get coloured red. I was trying to do this changing the styles, so I created a Button.Right and a Button.Wrong style, but I also need to disable the buttons so they don't get clicked more than once while I'm showing the correct answers.
So I'm having trouble making it so the buttons don't look greyish and with the alpha turned down when I set their enabled property to false. I'm trying to be as minimalistic as possible here, changing disabled-overlay-alpha or disabledOverlayAlpha in the css file doesn't seem to do the trick, neither does changing disabledBorderColor
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Aug 11, 2011
I have a TabNavigator, and each tab is a Module. One of the modules is labelled Units and the full code of the module is posted in this post. There are several problems:
1) Forms are not populated with data from the datagrid selection.
2) Selecting a row and clicking delete gives the very-common error: TypeError: Error #1009: Cannot access a property or method of a null object reference.
A trace on the valueObject unit within the selectionChangeHandler function gives NULL. Why? Note: In other modules (other tabs of the TabNavigator), I have DropDownLists populated with units. This means that the valueObject Unit is defined in the other modules. However, valueObjects should be private to modules, and not shared.
[Code]....
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Feb 4, 2011
i have a problem using the itemRenderer functionality. When using an ArrayCollection the visible Data in the DataGrid using the itemRenderer will be rendered just fine. But if i start scrolling the entries are repeating in the cells using the renderer. The cells are not filled with date according to the id. What mistake i'm doing here.
I read a lot of the explainations like:
[URL]
here is the code for the set data function (itemRenderer is extending HBox):
override public function set data(value:Object):void {
_data = value;
if(data!=null)
[code]....
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Feb 12, 2012
I'm using Flex 4 and I need to render the data that resembles HTML Table with row span in a Flex component.My inclination was to use a DataGrid but I believe that rowSpan is not supported for that component. I looked at the AdvancedDataGrid but the user does not want to have a tree-structure in any of the columns. Looking to see if there are any hints/tips for modifying the DataGrid or AdvancedDataGrid to produce an "HTML Table with rowspan" look.
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Apr 13, 2011
How can you display a multi-line column header using the Flex Spark Data Grid for Flex 4.5?
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Nov 3, 2009
I have a datagrid which is editable and I need to send that back to the database via a CFC for insertion into the database after all the editing is complete. Dumping the array collection to cfdump tells me that I have an array with items and a structure but i cannot understand how to "loop" through each and insert into the DB.There seems to be very little written which actually works! My MXML and CFC are below but give me the error of "You have attempted to dereference a scalar variable of type class coldfusion.runtime.Array as a structure with members." -which is nice
[Bindable]
private var getconsent:ArrayCollection = new ArrayCollection([
{LocationName:'Service A', Contact: 'Bob Jones' },
[code].....
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Jul 27, 2010
I have several datagrids with changing columns. For the text fields the datagrid's sort function neems to be making a case sensitive compare. eg. the following list sorted would look like this apples strawberries Autos Autos should be with apples but since the capital A is counted differently all capital letters come after. I've found a lot of information on setting a CASEINSENSITIVE flag, but I can't figure out where to do this. The best solution would be one where I can override the default behavior to be case insensitive for all my datagrids and all my compare functions.
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Dec 23, 2010
I am in a situation where user gets the cars data from the database based on the selection and displays it in datagrid like below ( for example)
Company Model Year No
GM Chevy 2010 10
GM Chevy 2009 5
GM Pontiac 2010 12
Honda Civic 2009 12
and there will be a link next to datagrid to get Pie chart based on the data displays in the data grid . The pie graph should display grouping by company and the count . I mean for the above example that should give with two pie items , one for GM showing the number of vehicles ( in this case 3 ) and Honda showing the number of vehicles ( in this case 1 ).
I thought of getting it from the database by querying and grouping it .But here the problem is after getting the data above in the datagrid user can able to filter at client end ( By year or model ) and can say get graph . This time that should only display the graph for the data visible in Datagrid .Grouping on database for every operation is becoming expensive. Since we have already data available at client end , is there any way to group it at client ..?
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Jan 18, 2011
I am loading the data externally from xml and displaying in a datagrid. I have 2 buttons addRow and deleteRow. My datagrid headertext names are "name" "age" "rollno" "image", where image also will be loading externally thru an xml file. now when i am pressing the deleteRow button, whole row is getting deleted but an image icon is still appearing under "image" headertext. It was not an actual image but a blank image icon kind of thing is appearing, how to remove the icon. i want my whole row to be deleted. but its not happening.
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