Question

I have an NSCrollView that contains an NSTableView. It has 3 columns and 4 rows. I have 4 NSStrings with content that I need to copy into the scrollview.

Using Xcode 4 I tried connecting the table or the NSTextFieldCell and then adding the text via

[_Cell1 setStringValue:MyString]; 

But nothing happens. It doesn’t get updated.

Any way to do this?
Thank you.

EDIT:

I found the following answer to a similar question. I still am confused but after reading Apple’s example about bindings I can only say that this does not make any sense, so much code to achieve something so simple. That’s the problem with everything being an object and with OOP in general.

Any simple samples out there? I don’t even know how to start setting this or connecting the gazillion things you need to connect to start working with this

Answer 1

Unfortunately, you can’t “add” or “set” the content of a table view. Like most view objects, a table view doesn’t store content; it depends on a controller to provide content when it needs it.

There are two options:

• Data source: simplest, easiest to understand
• Binding to an array controller: harder to understand, but less work to implement

The best Apple resource on the subject: Populating Cell-Based Table Views from the Table View Programming Guide. If you’re struggling, I suggest you start with the data source option. It’ll be just a few lines of code, and you can adapt the simple samples from that document.

To populate the table, you need to implement these two methods:

– numberOfRowsInTableView:
– tableView:objectValueForTableColumn:row:

And to change the data, you’ll need to implement one more:

- tableView:setObjectValue:forTableColumn:row:

You’ll need to set your controller as the data source for the table view in interface builder. And the correct protocol for this is NSTableViewDataSource, not NSTableViewDelegate.