[flexcoders] checkbox cell renderer
Hi I have a datagrid with a checkbox renderer. I want to know if checkbox in each row is checked or not. My datagrid is asmx:DataGrid id="classgroupOfModule" dataProvider="{moduleClassgroupList.currentItem.classgroups}" width="100%"mx:columnsmx:Arraymx:DataGridColumn headerText="Select" columnName="studentSelection" cellRenderer="com.lsmonline.client.view.util.CheckBoxCellRenderer"/mx:DataGridColumn headerText="Name" columnName="classgroupName" /mx:DataGridColumn headerText="Capacity" columnName="classgroupCapacity"
/mx:DataGridColumn headerText="Current Enrol" columnName="currentEnrolments" //mx:Array/mx:columns/mx:DataGridShould i use mx.controls.Checkbox as my renderer or should i customise it. In my customised renderer i do nothing really. My requirement is to get the selected rows which the user has checked.Please advise. ThanksHusain
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RE: [flexcoders] Checkbox Cell Renderer
Title: Checkbox Cell Renderer
Matt, Code is below. Can you please take
a look at it and let me know what I am doing wrong?
import mx.core.UIComponent
import mx.controls.CheckBox
class
com.idt.pcmssearch.parametric.renderers.CheckCellRenderer extends UIComponent
{
var check : MovieClip;
var listOwner : MovieClip;
var getCellIndex : Function;
var getDataLabel : Function;
function CheckCellRenderer()
{
}
function createChildren() :
Void
{
check =
createClassObject(CheckBox, check, 1, {styleName:this,
owner:this});
check.addEventListener(click,
this);
size();
}
function size() : Void
{
check.setSize(20,
layoutHeight);
check._x =
(layoutWidth-20)/2;
check._y =
(layoutHeight-16)/2;
}
function setValue(str :
String, currentItem : Object, sel : Boolean) : Void
{
//check._visible
= (currentItem!=undefined);
check.selected =
currentItem[getDataLabel()];
}
function getPreferredHeight()
: Number
{
return 16;
}
function getPreferredWidth()
: Number
{
return 20;
}
function click()
{
listOwner.editField(
getCellIndex().itemIndex, getDataLabel(), check.selected );
}
}
Thanks
Agha Mehdi
IDT - eBusiness Program Manager
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Matt Chotin
Sent: Saturday, September 10, 2005
9:16 PM
To: flexcoders@yahoogroups.com
Subject: RE: [flexcoders] Checkbox
Cell Renderer
Im guessing that you accidentally
have a reference to something that is not being cleared in your renderer.
Remember that the renderer is re-used for many items and as you scroll up and
down it changes position. So maybe theres an instance variable in your
renderer thats accidentally staying set, i.e., youre not clearing
everything that you need to in your setValue method.
Matt
From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Mehdi, Agha
Sent: Friday, September 09, 2005
5:09 PM
To: flexcoders@yahoogroups.com
Subject: [flexcoders] Checkbox
Cell Renderer
Hi all,
I have a weirdo thing going on with this
renderer. When I check the
checkbox in the grid, it automatically selects other checkboxes in the same
grid randomly. The most interesting part is that when I scroll through the
grid, it keeps checking/unchecking the boxes without any reason. Also, when I
have some rows checked and I get new data in the grid, it keeps the boxes
checked at previous indexes.
Anyone ever ran into this issue?
Thanks
Agha Mehdi
IDT - eBusiness Program Manager
Work: 408.284.8239
Fax: 408.284.2766
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RE: [flexcoders] Checkbox Cell Renderer
Title: Checkbox Cell Renderer Im guessing that you accidentally have a reference to something that is not being cleared in your renderer. Remember that the renderer is re-used for many items and as you scroll up and down it changes position. So maybe theres an instance variable in your renderer thats accidentally staying set, i.e., youre not clearing everything that you need to in your setValue method. Matt From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Mehdi, Agha Sent: Friday, September 09, 2005 5:09 PM To: flexcoders@yahoogroups.com Subject: [flexcoders] Checkbox Cell Renderer Hi all, I have a weirdo thing going on with this renderer. When I check the checkbox in the grid, it automatically selects other checkboxes in the same grid randomly. The most interesting part is that when I scroll through the grid, it keeps checking/unchecking the boxes without any reason. Also, when I have some rows checked and I get new data in the grid, it keeps the boxes checked at previous indexes. Anyone ever ran into this issue? Thanks Agha Mehdi IDT - eBusiness Program Manager Work: 408.284.8239 Fax: 408.284.2766 -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
[flexcoders] Checkbox Cell Renderer
Title: Checkbox Cell Renderer Hi all, I have a weirdo thing going on with this renderer. When I check the checkbox in the grid, it automatically selects other checkboxes in the same grid randomly. The most interesting part is that when I scroll through the grid, it keeps checking/unchecking the boxes without any reason. Also, when I have some rows checked and I get new data in the grid, it keeps the boxes checked at previous indexes. Anyone ever ran into this issue? Thanks Agha Mehdi IDT - eBusiness Program Manager Work: 408.284.8239 Fax: 408.284.2766 -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com SPONSORED LINKS Web site design development Software design and development Macromedia flex Software development best practice YAHOO! GROUPS LINKS Visit your group "flexcoders" on the web. To unsubscribe from this group, send an email to:[EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.
