Add a button dyeing device to the GridColumn column of the DataGrid.

In a project, a function such as effect is required:

 

You need to add a button to the GridColumn column of the DataGrid:

1. Declare a spark DataGrid first. Add the button advertiser and the red code part to the last column.

[Html]
<S: DataGrid id = "DataGrid2" verticalScrollPolicy = "on" horizontalScrollPolicy = "on" width = "100%" height = "100%" minHeight = "200" skinClass = "com. tm. skin. dataGridSkin ">
<S: columns>
<S: ArrayList>
<S: GridColumn headerText = "region name" dataField = "areaName"/>
<S: GridColumn headerText = "region NO" dataField = "areaNo"/>
<S: GridColumn headerText = "whether to use" dataField = "isUse" labelFunction = "isUseValue"/>
<SPAN style = "COLOR: # ff0000"> <s: GridColumn itemRenderer = "com. tm. renderer. OperateItem" editable = "false"/> </SPAN>
</S: ArrayList>
</S: columns>
</S: DataGrid>

<S: DataGrid id = "DataGrid2" verticalScrollPolicy = "on" horizontalScrollPolicy = "on" width = "100%" height = "100%" minHeight = "200" skinClass = "com. tm. skin. dataGridSkin ">
<S: columns>
<S: ArrayList>
<S: GridColumn headerText = "region name" dataField = "areaName"/>
<S: GridColumn headerText = "region NO" dataField = "areaNo"/>
<S: GridColumn headerText = "whether to use" dataField = "isUse" labelFunction = "isUseValue"/>
<S: GridColumn itemRenderer = "com. tm. renderer. OperateItem" editable = "false"/>
</S: ArrayList>
</S: columns>
</S: DataGrid> 2 There are two buttons in the GridItemRenderer class of the Declaration dyeing tool, and a custom event is added to the two buttons for distribution:

[Java]
<Fx: Script>
<! [CDATA [
Import com. tm. event. OperateEvent;
Private function removeItem (): void {
Trace (data );
Var removeEvent: OperateEvent = new OperateEvent (OperateEvent. REMOVE, data );
This. dispatchEvent (removeEvent );
}

Private function updateItem (): void {
Var updateEvent: OperateEvent = new OperateEvent (OperateEvent. UPDATE, data );
This. dispatchEvent (updateEvent );
}
]>
</Fx: Script>

<S: Button label = "edit" click = "updateItem ()"/>
<S: Button label = "delete" click = "removeItem ()"/>

<Fx: Script>
<! [CDATA [
Import com. tm. event. OperateEvent;
Private function removeItem (): void {
Trace (data );
Var removeEvent: OperateEvent = new OperateEvent (OperateEvent. REMOVE, data );
This. dispatchEvent (removeEvent );
}

Private function updateItem (): void {
Var updateEvent: OperateEvent = new OperateEvent (OperateEvent. UPDATE, data );
This. dispatchEvent (updateEvent );
}
]>
</Fx: Script>
 
<S: Button label = "edit" click = "updateItem ()"/>
<S: Button label = "delete" click = "removeItem ()"/> 3. The Custom Event is as follows:

[Java]
Public class OperateEvent extends Event
{
Public var data: Object;
Public static const REMOVE: String = "remove ";
Public static const UPDATE: String = "update ";
Public function OperateEvent (type: String, data: Object, bubbles: Boolean = true, cancelable: Boolean = false)
{
This. data = data;
Super (type, bubbles, cancelable );
}
}

Public class OperateEvent extends Event
{
Public var data: Object;
Public static const REMOVE: String = "remove ";
Public static const UPDATE: String = "update ";
Public function OperateEvent (type: String, data: Object, bubbles: Boolean = true, cancelable: Boolean = false)
{
This. data = data;
Super (type, bubbles, cancelable );
}
}
4 finally, we need to add the listening method for custom events to the creationComplete Initialization Method in the main program, that is, the DataGrid class using spark:

[Html]
Protected function CompleteHandler (event: FlexEvent): void
{
<SPAN style = "COLOR: # cc0000"> maid (OperateEvent. REMOVE, removeUI );
DataGrid2.addEventListener (OperateEvent. UPDATE, updateUI); </SPAN>
ServerPagingBar1.dataGrid = maid;
// Flex paging
ServerPagingBar1.pagingFunction = pagingFunction;
}

Protected function CompleteHandler (event: FlexEvent): void
{
DataGrid2.addEventListener (OperateEvent. REMOVE, removeUI );
DataGrid2.addEventListener (OperateEvent. UPDATE, updateUI );
ServerPagingBar1.dataGrid = maid;
// Flex paging
ServerPagingBar1.pagingFunction = pagingFunction;
} 5. After listening to these two events, write the handler: removeUI Delete, update and edit as follows:

[Html]
Protected function updateUI (event: OperateEvent): void
{
Var areaUI: AreaUI = PopUpManager. createPopUp (this, AreaUI) as AreaUI;
AreaUI. state = "update ";
AreaUI. areaVo = event. data as AreaVo;
PopUpManager. centerPopUp (areaUI );
}

Protected function updateUI (event: OperateEvent): void
{
Var areaUI: AreaUI = PopUpManager. createPopUp (this, AreaUI) as AreaUI;
AreaUI. state = "update ";
AreaUI. areaVo = event. data as AreaVo;
PopUpManager. centerPopUp (areaUI );
} [Html] view plaincopyprint? Protected function removeUI (event: OperateEvent): void
{
Alert. okLabel = 'true ';
Alert. cancelLabel = 'cancel ';
Alert. show ("are you sure you want to delete this record", "Are you sure you want to delete this record? ", Alert. OK | Alert. CANCEL, this, removeFunction );
RecId = event. data. recNo;

}

Protected function removeUI (event: OperateEvent): void
{
Alert. okLabel = 'true ';
Alert. cancelLabel = 'cancel ';
Alert. show ("are you sure you want to delete this record", "Are you sure you want to delete this record? ", Alert. OK | Alert. CANCEL, this, removeFunction );
RecId = event. data. recNo;

} End!