1)       implement an itemRenderer that displays a NumericStepper.  You
can use an in-line renderer, using the mx:Component tag, if the renderer
is fairly simple. Set whatever properties you want in the
initialization, assuming they are the same for all rows.  Any dynamic
characteristics mys be set by the dataProfider item.  Find an example.

 

2)       You can't "move" a ComboBox into a DataGrid. Implement a
ComboBox itemRenderer, set any static properties on initialization, any
dynamic properties in the set data() override.  Example:
http://www.cflex.net/showfiledetails.cfm?ChannelID=1&Object=File&objectI
D=767

 

Tracy

 

________________________________

From: [email protected] [mailto:[EMAIL PROTECTED] On
Behalf Of Jeffrey Walker
Sent: Thursday, March 13, 2008 2:22 PM
To: [email protected]
Subject: Re: [flexcoders] Problem with dataGrid and the itemRenderers
for Numeric stepper and ComboBox

 

Thanks for the response. But have you seen my problems before. If so, do
you know I can fix it?

1. Numeric Stepper max being forced to 10 when moved to the datagrid.
2. ComboBox being blank when moved to the datagrid.

Can you please help me with my existing code? Thanks 



On Thu, Mar 13, 2008 at 11:23 AM, Tracy Spratt <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]> > wrote:

Using custom itemRenderers is easy if you are just rendering the data.
But when you start to use them interactively, to modify the data it gets
more complicated.

 

Start here for some good info:

http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.ht
ml
<http://blogs.adobe.com/aharui/2007/03/thinking_about_item_renderers_1.h
tml> 

 

And some advice, do not start from scratch, but find an example close to
what you want and modify it.  There are *very* many itemRender examples
available.

 

Tracy

 

________________________________

From: [email protected] <mailto:[email protected]>
[mailto:[email protected] <mailto:[email protected]> ]
On Behalf Of jeffreyr6915
Sent: Thursday, March 13, 2008 1:11 PM
To: [email protected] <mailto:[email protected]> 
Subject: [flexcoders] Problem with dataGrid and the itemRenderers for
Numeric stepper and ComboBox

 

I have a datagrid with an arrayCollection data provider. On a button
click, I call a method to update the dataGrid. Some of the cells in
the datagrid are supplied by comboBoxes and Numeric Steppers. The
following are the problems that I am having:

1. When using the itemRenderer="mx.controls.NumericStepper", a numeric
stepper is deployed into the datagrid as intended. But the maximum
value becomes 10 and does not keep the maximum value of the original
numeric stepper (i.e, any values of more than 10 will be changed to 10
when placed in the datagrid). How do I get the numeric stepper into
the datagrid with the original maximum value?

2. When using the itemRenderer="mx.controls.ComboBox", an empty
combobox is sent to the datagrid and not the comboBox populated with
the original choices (with the user's choice the one selected). Note
that if I use itemRenderer="mx.controls.TextInput", the user's choice
populates the datagrid cell but it is only text and not the combobox.
How can I get the original comboBox (with the user's choice selected)
into the datagrid cell?

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml
<http://www.adobe.com/2006/mxml> "
layout="absolute" backgroundGradientAlphas="[1.0, 1.0]"
backgroundGradientColors="[#FDFDFD, #FDFCFC]">
<mx:Script>
<![CDATA[

import mx.collections.ArrayCollection;
import mx.controls.List;
import mx.controls.CheckBox; 
import mx.controls.ComboBox;

[Bindable] 
private var myArray1:Array = new Array("a", "b", "c");

[Bindable] 
private var myArray2:Array = new Array("a", "b", "c");

[Bindable] 
private var myArray3:Array = new Array("a", "b", "c");


[Bindable]
private var dataGridProvider:ArrayCollection = new
ArrayCollection();


[Bindable]
private var selectCheckBox:CheckBox = new CheckBox();

private var cb:ComboBox = new ComboBox();


private function updateTable():void
{
//Add the new data into the table (into the next row
of the table)
dataGridProvider.addItem({col1:selectCheckBox,
col2:cb1.selectedLabel,col3: input1.text, col4:cb2.selectedLabel,
col5:ns1.value ,col6:cb3.selectedLabel, col7:ns2.value});

//Update the table's dataprovider with the updated
task row
table.dataProvider = dataGridProvider;

//Clear the data from the new task input form 
cb1.selectedIndex = -1;
input1.text = null;
cb2.selectedIndex = -1;
ns1.value = 0;
cb2.selectedIndex = -1;
ns2.value = 0;
}

private function removeTaskRecord():void
{
//Check if the checkbox for the task is selected 

//((CheckBox)(((Array)(dataGridProvider.getItemIndex(scrumTable.selected
Index)))[0])).selected

if(table.selectedIndex>=0)//selectCheckBox.selected)//if(datagrid
selected index is greater than or equal to 0)
{
//Remove the task record from the Data Grid data
provider

dataGridProvider.removeItemAt(table.selectedIndex); 

}



}



]]>
</mx:Script>

<mx:Panel width="1027" height="382" layout="absolute"
borderColor="#0C2B73" left="10" bottom="10">
<mx:DataGrid x="10" y="10" width="984" height="295"
wordWrap="true" id="table" dataProvider="{dataGridProvider}"
draggableColumns="false" variableRowHeight="true">
<mx:columns>
<mx:DataGridColumn headerText="col1" dataField="col1"
editable="true" itemRenderer="mx.controls.CheckBox" width="50"
textAlign="center"/>
<mx:DataGridColumn headerText="col2" dataField="col2"
editable="true" itemRenderer="mx.controls.TextInput"/>
<mx:DataGridColumn headerText="col3" dataField="col3"
editable="true" itemRenderer="mx.controls.TextInput"/>
<mx:DataGridColumn headerText="col4" dataField="col4"
editable="true" itemRenderer="mx.controls.TextInput"/>
<mx:DataGridColumn headerText="col5" dataField="col5"
editable="true" itemRenderer="mx.controls.NumericStepper"/>
<mx:DataGridColumn headerText="col6" dataField="col6"
editable="true" itemRenderer="mx.controls.TextInput"/>
<mx:DataGridColumn headerText="col7" dataField="col7"
editable="true" itemRenderer="mx.controls.NumericStepper"/>
</mx:columns>
</mx:DataGrid>
<mx:Button x="921" y="313" label="Remove" id="removeBtn"
enabled="true" click="removeTaskRecord()"/>
</mx:Panel>
<mx:Panel width="520" height="308" layout="absolute" left="10"
top="33" borderColor="#0C2B73">
<mx:ComboBox x="10" y="40" id="cb1" dataProvider="{myArray1}"
width="169" selectedIndex="-1"></mx:ComboBox>
<mx:TextInput x="202" y="40" width="255" id="input1"/>
<mx:ComboBox x="10" y="107" dataProvider="{myArray2}"
selectedIndex="-1" id="cb2"></mx:ComboBox>
<mx:ComboBox x="202" y="107" dataProvider="{myArray3}"
selectedIndex="-1" id="cb3"></mx:ComboBox>
<mx:NumericStepper x="10" y="179" maximum="25" id="ns1"/>
<mx:NumericStepper x="202" y="179" maximum="25" id="ns2"/>
<mx:Button x="392" y="218" label="Submit" id="sbBtn"
click="updateTable()"/>
</mx:Panel>


</mx:Application>

 

 

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