[flexcoders] Re: How to properly subclass a component using mxml

[hank williams]

One guess I have is that there are issues regarding using mxml to populate an *inherited* field. In this case "columns" is not a component, but a field which contains an Array of of 
DataGridColumn 
objects. But the error that flex gives indicates that it thinks "columns" is supposed to be a compoent because the error message is "could not resolve <mx:columns> to a component implementation." 
Is it just the fact that columns doesnt have a capital letter that should tell the compiler that this is a field and not a component? Should it just be looking first for fields first and then components?This seems like a relatively basic issue. Someone out there must know!?
HankOn 7/6/06, hank williams <[EMAIL PROTECTED]> wrote:
I want to create a subclass of DataGrid. So far what I have done is to create a new MXML component that is based on DataGrid.The problem is that if I try to use the new component as if it was a dataGrid, certain things dont work. For example:
<myComp:BetterDataGrid>     <mx:columns>            <mx:DataGridColumn headerText="Song Name" dataField="label"/>            <mx:DataGridColumn headerText="Artist" dataField="label"/>
    </mx:columns></myComp:BetterDataGrid>in the above example, it doesnt like me using the columns construct to define the columns. In order to define columns in this way I need to put then in the actual BetterDataGrid component as opposed to in this instance. This makes it doggone hard to use BetterDataGrid as a generic "better dataGrid" since I cannot define its behavior on an instance by instance basis.
I am sure what I am doing wrong here is simple, but I dont know what.Any insight appreciated.Hank



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