The following example shows how you can create an editable Flex DataGrid control by setting the editable property on the DataGrid and DataGridColumn objects.
Full code after the jump.
<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/05/11/creating-an-editable-datagrid-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
<mx:ArrayCollection id="arrColl">
<mx:source>
<mx:Array>
<mx:Object label="Student A" score="85" />
<mx:Object label="Student B" score="48" />
<mx:Object label="Student C" score="71" />
<mx:Object label="Student D" score="88" />
<mx:Object label="Student E" score="24" />
<mx:Object label="Student F" score="64" />
<mx:Object label="Student G" score="76" />
<mx:Object label="Student H" score="76" />
<mx:Object label="Student I" score="93" />
<mx:Object label="Student J" score="88" />
<mx:Object label="Student K" score="48" />
<mx:Object label="Student L" score="76" />
</mx:Array>
</mx:source>
</mx:ArrayCollection>
<mx:DataGrid id="dataGrid"
dataProvider="{arrColl}"
editable="true"
rowCount="8">
<mx:columns>
<mx:DataGridColumn dataField="label"
editable="false" />
<mx:DataGridColumn dataField="score"
editable="true" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
View source is enabled in the following example.
When working with editable DataGrid controls, there are three events which can be useful: itemEditBeginning, itemEditBegin, and itemEditEnd.
<?xml version="1.0" encoding="utf-8"?>
<!-- http://blog.flexexamples.com/2008/05/11/creating-an-editable-datagrid-control-in-flex/ -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
layout="vertical"
verticalAlign="middle"
backgroundColor="white">
<mx:Script>
<![CDATA[
import mx.events.DataGridEvent;
private function addEvent(evt:DataGridEvent):void {
eventsArrColl.addItem(evt);
}
private function clearEvents():void {
eventsArrColl = new ArrayCollection();
}
]]>
</mx:Script>
<mx:ArrayCollection id="arrColl">
<mx:source>
<mx:Array>
<mx:Object label="Student A" score="85" />
<mx:Object label="Student B" score="48" />
<mx:Object label="Student C" score="71" />
<mx:Object label="Student D" score="88" />
<mx:Object label="Student E" score="24" />
<mx:Object label="Student F" score="64" />
<mx:Object label="Student G" score="76" />
<mx:Object label="Student H" score="76" />
<mx:Object label="Student I" score="93" />
<mx:Object label="Student J" score="88" />
<mx:Object label="Student K" score="48" />
<mx:Object label="Student L" score="76" />
</mx:Array>
</mx:source>
</mx:ArrayCollection>
<mx:ArrayCollection id="eventsArrColl" />
<mx:ApplicationControlBar dock="true">
<mx:Button label="Clear DataGrid" click="clearEvents();" />
</mx:ApplicationControlBar>
<mx:DataGrid id="dataGrid"
dataProvider="{arrColl}"
editable="true"
rowCount="8"
itemEditBegin="addEvent(event);"
itemEditBeginning="addEvent(event);"
itemEditEnd="addEvent(event);"
itemFocusIn="//addEvent(event);"
itemFocusOut="//addEvent(event);">
<mx:columns>
<mx:DataGridColumn dataField="label"
editable="false" />
<mx:DataGridColumn dataField="score"
editable="true" />
</mx:columns>
</mx:DataGrid>
<mx:DataGrid id="eventsDataGrid"
dataProvider="{eventsArrColl}"
itemRenderer="mx.controls.Label"
verticalScrollPolicy="on"
rowCount="9"
width="100%">
<mx:columns>
<mx:DataGridColumn dataField="columnIndex" />
<mx:DataGridColumn dataField="dataField" />
<mx:DataGridColumn dataField="itemRenderer" />
<mx:DataGridColumn dataField="reason" />
<mx:DataGridColumn dataField="rowIndex" />
<mx:DataGridColumn dataField="type" />
</mx:columns>
</mx:DataGrid>
</mx:Application>
View source is enabled in the following example.
Hello, I am UI Designer and new to Flex
according to our new project,
we have Combo box which has Any and Specific,and default is Any. and if the User Selects the Specific, we need to Show a “Text Input”, so that User can specify a value to search.
Can you please let me known how to do that By Action Script
Thank a lot in Advance
PSamanth
Prashanth Samanth,
Does this work for you?
<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="vertical"> <mx:Form width="350"> <mx:FormItem label="User:"> <mx:ComboBox id="comboBox"> <mx:dataProvider> <mx:Array> <mx:String>Any</mx:String> <mx:String>Specific</mx:String> </mx:Array> </mx:dataProvider> </mx:ComboBox> <mx:TextInput id="textInput" visible="{comboBox.selectedItem == 'Specific'}" includeInLayout="{textInput.visible}" /> </mx:FormItem> <mx:FormItem label="Date range:" direction="horizontal"> <mx:DateField id="startDate" /> <mx:DateField id="endDate" /> </mx:FormItem> </mx:Form> </mx:Application>Peter
Hi Peter.
First, terrific site. It is my #1 goto site for working examples of real-world Flex scenarios. Thank you for keeping this site updated. It’s is extremely useful to me.
Question: How would I make a datagrid editable, but also add the “restrict” attribute to that field. I see how to do it to text fields, but how do I add it for a datagrid? Like in your example above, restrict the field so that the score had to be numeric? I can see adding an editEnd event that looks to see if it’s a number and then not allowing it. Is that the best way? I was hoping I could just add the restrict tag somewhere easily.
thanks !!!
OK I found the answer. Only the text input component will accept the restrict tag. But you can add an item renderer and do it like this.
http://blog.classsoftware.com/index.cfm/2007/6/11/Flex-Datagrid-Editing-Cells
I like this because it solves 2 problems:
1. Telling the user which fields are editable.
2. Ability to restrict the input chars without more functions.
I made some slight variations on this in order to center the field values.
Hey peterd,
Thanks a lot Dude, that works, I had implemented same code for Multiple Combo Boxes and it’s very easy to use
Thank a lot again
Hello
How to create a Browse Button in Flex, Like we give “type=”file” in HTML, so that we can browse the file from System and upload
This is the HTML Tag: , which I want to include in Flex
Prashanth Samanth,
File uploads and file downloads are handled by the FileReference class. For a few examples, see
http://blog.flexexamples.com/tag/filereference/.
Peter
Peterd,
I even want a Text input before the Browse, so that the User can directly type the path he want to upload…
PSamanth
Peted,
File uploads and Downloads I got this and implemented, please have look at this
http://livedocs.adobe.com/flex/3/html/help.html?content=17_Networking_and_communications_9.html,
thought it will help you too
PSamanth
Yeah yeah check this out. Dig this, Johnson !!
Here’s your dataGrid code:
And here’s your editable cell editor:
<?xml version="1.0" encoding="utf-8"?> <mx:TextInput xmlns:mx="http://www.adobe.com/2006/mxml" width="100%" height="100%" restrict="0-9"> <mx:Script> <![CDATA[ import mx.controls.DataGrid; /** * Override data setter to set cell text according to the dataField */ public override function set data(value:Object):void { var dg:DataGrid = owner as DataGrid; text = value[dg.columns[dg.editedItemPosition.columnIndex].dataField]; } ]]> </mx:Script> </mx:TextInput>This is even better since you don’t need to know which order your dataGrid column is and cuts your code by like 90%.
Opps forgot the renderer above.
<?xml version="1.0" encoding="utf-8"?> <mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml" implements="mx.controls.listClasses.IDropInListItemRenderer" horizontalAlign="center" verticalScrollPolicy="off" horizontalScrollPolicy="off" preinitialize="init()"> <mx:Label id="CellText" width="93%" paddingLeft="20" /> <mx:Label textAlign="right" text="+" toolTip="Edit" width="12" styleName="editPlusSign" /> <mx:Script> <![CDATA[ import mx.controls.dataGridClasses.DataGridListData; import mx.controls.listClasses.BaseListData; import mx.controls.DataGrid; private var iListData:BaseListData; /** * Implement listData getter from IDropInListItemRenderer */ public function get listData():BaseListData { return iListData; } /** * Implement listData setter from IDropInListItemRenderer */ public function set listData( value:BaseListData ):void { iListData = value; } /** * Add event listener for when data changes */ private function init():void { addEventListener("dataChange", handleDataChanged); } /** * When data changes update the cell text based on the dataField */ private function handleDataChanged(event:Event):void { // Cast listData to DataGridListData. var myListData:DataGridListData = DataGridListData(listData); CellText.text = data[myListData.dataField]; } ]]> </mx:Script> </mx:HBox>Hi. Is there an example of how to do paging on a Flex datagrid? This way you only show a certain number of records per page and have Next/Previous buttons to let the user view more pages of records or jump to a specific page.
hi i want one thing is that after editing the cell value of data grid , i want that changed cell value.please anybody can help me.