Thanks,
Made a couple of modifications based on your example and got it to
work.
Here is the function for the record (headers String and Alert
commented out):
public function updateGridData():void{
var newColumns:Array = new Array();
//var headers:String = new String();
var i:int;
for (i = 0; i<columnData.length; i++) {
var column:DataGridColumn = new DataGridColumn();
column.dataField = columnData[i].name;
column.headerText = getheaderText(columnData[i]);
//headers = headers + column.headerText + ", ";
newColumns.push(column);
}
dGrid.dataProvider = gridData;
dGrid.columns = newColumns;
//mx.controls.Alert.show("Updated the DataGrid. Headers SHOULD
be: " + headers);
}
--- In [email protected], "Sebastian Zarzycki" <[EMAIL PROTECTED]>
wrote:
>
> But what result you get? Make sure that data are already there
(gridData and
> columnData are filled with values) when you launch this method.
> I would fix the code with the following :
>
> var headers:String = new String();
> var newColumns:Array = new Array();
>
> // flex loops are generally done this way (see
>
http://livedocs.adobe.com/flex/2/docs/wwhelp/wwhimpl/common/html/wwhel
p.htm?
> context=LiveDocs_Parts&file=00001831.html)
> var i:int;
> for (i = 0; i<columnData.length; i++) {
> var column:DataGridColumn = new DataGridColumn(columnData
[i].name);
> column.dataField = columnData[i].name; // there wasn't [i]
index here
> column.headerText = getheaderText(columnData[i]); // aren't you
setting
> name/header in constructor?
> //headers = headers + getheaderText(columnData[i]) + ", "; //
what is
> this for?
> newColumns.push(column);
> }
>
> dGrid.dataProvider = gridData;
> dGrid.columns = newColumns; // it's better to assign at the end, to
avoid
> datagrid invalidations on every column added.
>
>
>
>
> -----Original Message-----
> From: [email protected]
[mailto:[EMAIL PROTECTED] On
> Behalf Of Dominic Pazula
> Sent: Monday, January 21, 2008 9:04 PM
> To: [email protected]
> Subject: [flexcoders] Dynamically Generating Column Attributes for
a Data
> Grid
>
> I tried to search for this but got a "server busy" error. I
figured
> I would go ahead and post it. I appologize if this has been
covered
> before.
>
> I'm trying to dynamically generate columns for my datagrid. I
don't
> have prior knowledge of the column attributes before receiving the
> data. I get two ArrayCollection objects, one with the data
(gridData)
> and one with the metadata about the columns (called columnData from
> here on).
>
> Here is the function I am trying to write:
> public function updateGridData():void{
> var column:DataGridColumn;
> var headers:String = new String();
>
> for (var i:int =0; i<columnData.length; i++){
> column = new DataGridColumn(columnData[i].name);
> //column.dataField = columnData.name;
> column.headerText = getheaderText(columnData[i]);
> //headers = headers + getheaderText(columnData[i]) + ", ";
> dGrid.columns.push(column);
> }
> dGrid.dataProvider = gridData;
> //mx.controls.Alert.show("Updated the DataGrid. Headers SHOULD
be: "
> + headers);
> }
>
> The "getheaderText()" function returns the header text value based
on
> a user selection (description or name).
>
> What am I doing wrong here?
>
> Thanks
> Dominic
>
>
>
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