I'm not sure I see where arrayStep is defined in parentDocument. ________________________________
From: [email protected] [mailto:[EMAIL PROTECTED] On Behalf Of freska Sent: Monday, September 03, 2007 10:18 PM To: [email protected] Subject: [flexcoders] passing reference? Hi list, Please review my code. I have no better words to explain my problem. In the main file, I have this variable. [Bindable] public var arrayStep:ArrayCollection = new ArrayCollection(); In my component file, I define a DataGrid component using three ComboBox as item editor. I need to pass that variable to one of them. Here is the code. I mark the part with a comment. <?xml version="1.0" encoding="utf-8"?> <mx:HBox xmlns:mx="http://www.adobe.com/2006/mxml <http://www.adobe.com/2006/mxml> " width="480" height="336"> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; // array untuk menyimpan data result (tabel) [Bindable] public var arrayStepResChild:ArrayCollection = new ArrayCollection(); /* This is not correct. */ [Bindable] public var myArrayStep:ArrayCollection = parentDocument.arrayStep; ]]> </mx:Script> <mx:Component id="goToEditor"> <mx:ComboBox dataProvider="{outerDocument.myArrayStep}" labelField="colLabel"/> </mx:Component> <mx:Component id="timeEditor"> <mx:ComboBox dataProvider="{arrayTime}" labelField="time"> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] public var arrayTime:ArrayCollection = new ArrayCollection([{time:"immediately"}, {time:"1 hour"}, {time:"1 day"}, {time:"1 week"}]); ]]> </mx:Script> </mx:ComboBox> </mx:Component> <mx:Component id="roleEditor"> <mx:ComboBox dataProvider="{arrayRole}" labelField="role"> <mx:Script> <![CDATA[ import mx.collections.ArrayCollection; [Bindable] public var arrayRole:ArrayCollection = new ArrayCollection([{role:"Employee"}, {role:"Manager"}, {role:"HR Admin"}, {role:"Finance"}]); ]]> </mx:Script> </mx:ComboBox> </mx:Component> <mx:Canvas width="100%" height="100%" minHeight="256"> <mx:Button id="btnAddStepResult" x="20" y="10" label="New" click="addStepResult()"/> <mx:Button id="btnSaveStepResult" x="78" y="10" label="Save"/> <mx:Button id="btnRemoveStepResult" x="140" y="10" label="Delete" click="removeStepResult()"/> <mx:DataGrid id="dataGridResult" x="20" y="40" width="428" height="110" sortableColumns="false" dataProvider="{arrayStepResChild}" editable="true" draggableColumns="false"> <mx:columns> <mx:DataGridColumn headerText="Result" dataField="colResult"/> <mx:DataGridColumn headerText="Go to" dataField="colGoTo" itemEditor="{goToEditor}"/> <mx:DataGridColumn headerText="Time" dataField="colTime" itemEditor="{timeEditor}"/> <mx:DataGridColumn headerText="Assigned to" dataField="colRole" itemEditor="{roleEditor}"/> </mx:columns> </mx:DataGrid> </mx:Canvas> </mx:HBox> Flex said, "Error #1009: Cannot access a property or method of a null object reference." I've tried to fill the arrayStep with initial value, but it also throws the same error message. Please give me a clue on this. TIA, Freska
