Datagrid Cell render with custom component - actionscript-3

Question

A few hours ago I've asked how to create a custom component (textInput and label component and created a Component Definition) and with your answers I can do that now.
Problem 2: I'd like to use that component in a datagrid column so that the user can type a value in the textInput which will in turn update the underlying dataprovider.
I know I should use a cellrenderer like I've done with a checkbox column (also with help on the Net), but at this stage I'm only pulling my hair out.
Please help.

Answer 1

This might look messy as it's a modified example.
Make sure you have the DataGrid, Label and TextInput components in the library of the fla you want to try this:
// Import the required component classes.
import fl.controls.DataGrid;
import fl.controls.dataGridClasses.DataGridColumn;
import fl.data.DataProvider;
//get some data ready, notice data and label
var dp:DataProvider = new DataProvider();
for(var i:int = 0 ; i < 7; i++)
dp.addItem({data:'input '+(i+1),label:'label '+(i+1), title:"item " + (i+1)});
var dataCol:DataGridColumn = new DataGridColumn("data");
dataCol.cellRenderer = CustomCell;
var titleCol:DataGridColumn = new DataGridColumn("title");
var myDataGrid:DataGrid = new DataGrid();
myDataGrid.addColumn(dataCol);
myDataGrid.addColumn(titleCol);
myDataGrid.dataProvider = dp;
myDataGrid.rowHeight = 64;
myDataGrid.width = 500;
myDataGrid.rowCount = dp.length - 1;
myDataGrid.move(10, 10);
myDataGrid.editable = true;
addChild(myDataGrid);
And the CustomCell class looks like this:
package {
// Import the required component classes.
import fl.controls.listClasses.ICellRenderer;
import fl.controls.listClasses.ListData;
import fl.controls.Label;
import fl.controls.TextInput;
import fl.core.InvalidationType;
import fl.core.UIComponent;
import fl.data.DataProvider;
import flash.display.Sprite;
import flash.events.Event;
public class CustomCell extends UIComponent implements ICellRenderer {
protected var _data:Object;
protected var _listData:ListData;
protected var _selected:Boolean;
//the custom components
private var labelComponent:Label;
private var inputComponent:TextInput;
/**
* Constructor.
*/
public function CustomCell():void {
super();
init();
}
/**
* Draws the Label and TextInput components
*/
private function init():void{
labelComponent = new Label();
labelComponent.autoSize = 'right';
inputComponent = new TextInput();
inputComponent.editable = true;
addChild(labelComponent);
addChild(inputComponent);
inputComponent.x = labelComponent.width + 5;//5 pixels distance between components
inputComponent.drawFocus(true);
}
public function get data():Object {
return _data;
}
/**
* #private (setter)
*/
public function set data(value:Object):void {
_data = value;
//there's label data, update the label
if(_data.label) labelComponent.text = _data.label;
//there's data for the input, update that too
if(_data.data) inputComponent.text = _data.data;
}
public function get listData():ListData {
return _listData;
}
public function set listData(value:ListData):void {
_listData = value;
invalidate(InvalidationType.DATA);
invalidate(InvalidationType.STATE);
}
public function get selected():Boolean {
return _selected;
}
public function set selected(value:Boolean):void {
_selected = value;
invalidate(InvalidationType.STATE);
}
public function setMouseState(state:String):void {
}
}
}
The code mostly comes from this devnet article.
It works ok, as in, it's editable.
Solution is be a component class(a class extending fl.core.UIComponent), implementing the ICellRender interface so it can be set as a renderer, and containing the Label and TextInput components. Also data will be mapped to TextInput.text, so it can be easily edited.
If DataGrid is a bit bloated, and you want to use the Component Definition or something simpler. I guess you can hack together a solution using a List and setting a custom cellRenderer using styles.
I'm guessing custom clips are used as a cell renderer in the Plugins list on the tweenlite page.
HTH,
George