help w/ multiple columns in NSTableView

[Willian Irving Zumwalt]

Hey All,

I'm trying to load a file with columns of data separated by white
space and display it in an NSTableView. The file loads fine, but each
line of data is being shown in each and every column for that row.
Here's an example of four rows of data from the file.

0 -0.749318 0.0892089 -1
1 -0.171308 0.167947 1
2 -0.651408 0.923422 -1
3 0.380259 -0.414841 1

My problem is that the first row of data is put in every column on the
first row, the second row in every column of the second row, and so
on. I'm not sure how to split the data up and place each item in a
column.

Below is my code.

Any help much appreciated.

--- mycontroller.mm ---

- (void)filePanelDidEnd:(NSWindow*)sheet returnCode:(int)returnCode
context:(void*)contextInfo
{
...
while ([scanner scanUpToString:@"\n" intoString:&currentLine])
{
...
listItems = [currentLine componentsSeparatedByString:@" "];
}

[lines addObject:listItems];
}

- (id)tableView:(NSTableView *)tableView
objectValueForTableColumn:(NSTableColumn *) tableColumn row:(int)row
{
return [lines objectAtIndex:row];
}

[matt neuburg]

Willian Irving Zumwalt <wizumwalt@yahoo.com> wrote:

> I'm trying to load a file with columns of data separated by white
> space and display it in an NSTableView. The file loads fine, but each
> line of data is being shown in each and every column for that row.
>
> - (id)tableView:(NSTableView *)tableView
> objectValueForTableColumn:(NSTableColumn *) tableColumn row:(int)row
> {
> return [lines objectAtIndex:row];
> }

You've no cause for complaint; Cocoa is doing exactly what your code is
telling it to do. If you want Cocoa to do something else, you will have
to write different code.

For example, if you want various things to appear in various columns,
you will need to use the tableColumn parameter you're being handed. The
value you return will depend upon this, as well as upon the row
parameter. Eh? m.

--
matt neuburg, phd = [email]matt@tidbits.com[/email], [url]http://www.tidbits.com/matt/[/url]
Read TidBITS! It's free and smart. [url]http://www.tidbits.com[/url]

[Eric Pepke]

[email]wizumwalt@yahoo.com[/email] (Willian Irving Zumwalt) wrote in message news:<dd8fee65.0309201458.68d040e4@posting.google. com>...

> - (id)tableView:(NSTableView *)tableView
> objectValueForTableColumn:(NSTableColumn *) tableColumn row:(int)row
> {
> return [lines objectAtIndex:row];
> }

objectValueForTableColumn is supposed to return different,
column-specific information based on which column it is.
So, you have to look at tableColumn, figure out which one
it is, and then break up your line and return the correct
chunk accordingly.