Re: [Junk E-Mail - MED] Re: [flexcoders] dataGrid drop-in itemRenderer/Editor

Fri, 14 Jul 2006 14:18:36 -0700

You can use this class as your item renderer

 

package com.theriabook.controls {

   import mx.controls.CheckBox;

   import mx.controls.dataGridClasses.DataGridListData;

  

   public class CheckBox extends mx.controls.CheckBox    {

       public var onValue:Object = 1;

       public var offValue:Object = 0;

       public function set value(o:Object) :void {

         selected = (o == onValue);

       }

       public function get value():Object  {

         return selected?onValue:offValue;

       }

       override public function set data(item:Object):void     {

         super.data = "">

         if( item!=null )

           value = item[DataGridListData(listData).dataField];

       }

   }

}


and these attributes on the datagridcolumn
 

...   itemRenderer="com.theriabook.controls.CheckBox" 

                rendererIsEditor="true"  editorDataField="value">

 

Styling and dealing with settings controls defaults without drop-in itemRenderer requires subclassing of DataGridColumn and it's ClassFactory - described in details in upcoming Flex book, but would take about 5 pages to explain. Nevertheless, the case is "classical, will try to respond via components forum

 

Thank you,

Anatole

 

 

 

 

 
On 7/14/06, Shannon Hicks <[EMAIL PROTECTED]> wrote:

Pan-
 
I tried this, and the checkbox shows up properly checked/unchecked.
 
Now, I get this error when I change the state:
 
ReferenceError: Error #1069: Property selected not found on flexComponents.editMouse_inlineComponent1 and there is no default value.
 
Shan

From: flexcoders@yahoogroups.com [mailto:flexcoders@yahoogroups.com] On Behalf Of Pan Troglodytes
Sent: Friday, July 14, 2006 2:58 PM
To: flexcoders@yahoogroups.com
Subject: [Junk E-Mail - MED] Re: [flexcoders] dataGrid drop-in itemRenderer/Editor

 

Flash knows how to convert 0/1 to Boolean, it just doesn't always know WHEN to do it.  To answer both your questions, here is a modified version of the help example:

<?xml version="1.0"?>
<mx:Application xmlns:mx=" http://www.adobe.com/2006/mxml" height="700" width="700">
 
  <mx:Script>
    <![CDATA[
       
      [Bindable]
      public var myDP:Array =         [
          {label1:"Order #2314", contact:"John Doe", quant:3, solddate:new Date(2005, 0, 1), Sent:1},
          {label1:"Order #2315", contact:"Jane Doe",  quant:3, solddate:new Date(2005, 0, 5), Sent:0}];
    ]]>
  </mx:Script>

  <mx:DataGrid id="myDG" dataProvider="{myDP}"     variableRowHeight="true" width="500" height="250" editable="true">
    <mx:columns>
        <mx:DataGridColumn dataField="label1"           headerText="Order #" editable="false"/>
        <mx:DataGridColumn dataField="quant"           headerText="Quantity"           itemEditor="mx.controls.NumericStepper "            editorDataField="value"/>
        <mx:DataGridColumn dataField="solddate"           headerText="Date"            itemRenderer=" mx.controls.DateField"           rendererIsEditor="true"           editorDataField="selectedDate"/>
        <mx:DataGridColumn dataField="Sent" rendererIsEditor="true" editorDataField="selected" textAlign="center">
          <mx:itemRenderer>
          <mx:Component>
            <mx:Canvas width="100%" height="100%">
            <mx:CheckBox selected="{Boolean(data.Sent)}" horizontalCenter="0" verticalCenter="0"/>
            </mx:Canvas>
          </mx:Component>
          </mx:itemRenderer>
        </mx:DataGridColumn>
    </mx:columns>
  </mx:DataGrid>
</mx:Application>



On 7/14/06, Shannon Hicks < [EMAIL PROTECTED]> wrote:

I have a dataGrid where I'd like to use a checkbox drop-in renderer/editor. My query returns two columns: name [varchar(45)] and featured [smallint]. Featured returns either 1 or 0.
 
Now, in the dataGrid, my featured column looks like this:
 
<mx:DataGridColumn headerText="Featured Image" dataField="featured" itemRenderer="mx.controls.CheckBox" rendererIsEditor="true" editorDataField="selected" textAlign="center"/>
 
First off... The checkbox doesn't show checked/unchecked according to the value of featured (1 or 0). Do I need to somehow convert 1 & 0 to boolean values? Isn't flash supposed to do this automatically?
 
Secondly... The checkbox isn't centered. I'm not sure how to do that, as silly as it sounds.
 
Shan

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Jason


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