Thanks Derrell,
I think I'll try your method. I was trying to do something similar
originally, but wasn't attaching the attribute properly, so it never got
passed along.in the rowInfo.
Ken
On Fri, Nov 5, 2010 at 5:35 PM, Derrell Lipman <
[email protected]> wrote:
> On Fri, Nov 5, 2010 at 17:25, Ken MacDonald <[email protected]> wrote:
>
>> Hi,
>> I've been displaying a table, but now we have a request to highlight
>> certain rows in the table. I have a RowRenderer to handle the rendering,
>> does highlights when row selected, etc. but wondering the best way to pass
>> the "is a header" attribute for a particular row to be highlighted. So,
>> something like:
>>
>> data = ["header 1", "row b", "row c", "this is a hdr, too", "row e", "row
>> f"]; // this is really an array of arrays, not just strings!
>> dataModel.setData(data);
>>
>> In my rowRenderer, I have a createRowStyle : function(rowInfo) which sets
>> the colors for the row, etc. but the rowInfo param doesn't have much in the
>> way of attributes - it has the row number (I could use this, I suppose, to
>> remember that row 0 and row 3 are headers), but there's not much else to go
>> on. Is there a way to attach a user attribute to rowInfo?
>>
>> What I did for the meantime is to add an additional invisible column to my
>> data array (my table has only 1 visible column):
>>
>> Instead of
>> data.append(["Im a header"]);
>>
>> I did:
>> data.append(["Im a header", true]);
>>
>> and tested for the value of the invisible column in the RowRenderer to see
>> if it should be treated as a header:
>>
>> if (rowInfo.rowData[1]) // render as header - different colors, etc.
>>
>> Works slick, but I'm just wondering if there's a more standard way to
>> handle this.
>>
>
> It sounds like you're well familiar with the rowInfo map, which contains,
> among other things, the entire row being rendered. The way you're doing it
> is reasonable. An alternative is something like this in the data model,
> assuming you have full control of the model:
>
> var rows = [];
>
> // A normal row
> var row = [ 23, "hello world" ];
> rows.push(row);
>
> // A header row
> row = [42, "I'm Special"];
> row.bIsHeader = true;
> rows.push(row);
>
> When each row is now passed to your row renderer, you can check for
> row.bIsHeader === true to know if it's a header row.
>
> You're on the right track with what you're doing, and what I showed is just
> an alternative that may or may not be better for your environment.
>
> Derrell
>
>
>
>
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