I have a table column of NSTableView bound to to an NSArrayController in Interface Builder. The array controller is bound to Shared User Defaults Controller for the Content Array. I had to select Handles Content As Compound Value to make adding new objects work. Unfortunately, this disables the highlighting of the table row when I add: an object to the array. The object is added but the table row is not highlighted and you have to double-click where you think the row is to be able to edit it.
My goal is to add: a row to the table view using the array controller; then, have that row automatically be highlighted and editable for the user.
Attributes for the NSArrayController:
Bindings for the the NSArrayController:
Bindings for the TableView Column:
The workaround that I found here worked for me.
You need to subclass NSArrayController and implement your own add: method
//
// MyArrayController.h
//
#import <AppKit/AppKit.h>
#interface MyArrayController : NSArrayController
#end
and
//
// MyArrayController.m
//
#import "MyArrayController.h"
#implementation MyArrayController
- (void)add:(id)sender {
[super add:sender] ;
[self performSelector:#selector(selectLastObject)
withObject:nil
afterDelay:0.0] ;
}
- (void)selectLastObject {
if ([self selectsInsertedObjects]) {
NSArray* arrangedObjects = [self arrangedObjects] ;
NSInteger nObjects = [arrangedObjects count] ;
if (nObjects > 0) {
[self setSelectionIndex:nObjects-1] ;
}
}
}
#end
Related
I followed the advice here on how to setup a MainWindowController: NSWindowController for my project's single window. I used a Cocoa class to create the .h/.m files, and I checked the option Also create .xib for User Interface. As a result, Xcode automatically hooked up a window, which I renamed MainWindow.xib, to my MainWidowController.
Next, I deleted the window in the default MainMenu.xib file (in Interface Builder I selected the window icon, then I hit the delete key). After that, I was able to Build my project successfully, and my controller's window in MainWindow.xib displayed correctly with a few buttons on it.
Then I tried adding an NSTableView to my MainWindowController's window. In Xcode, I dragged the requisite delegate and datasource outlets for the NSTableView onto File's Owner, which is my MainWindowController, and I implemented the methods in MainWindowController.m that I thought would make the NSTableView display my data:
- tableView:viewForTableColumn:row:
- numberOfRowsInTableView:
Now, when I Build my project, I don't get any errors, but the data doesn't appear in the NSTableView.
My code is below. Any tips are welcome!
//
// AppDelegate.h
// TableViews1
//
#import <Cocoa/Cocoa.h>
#interface AppDelegate : NSObject <NSApplicationDelegate>
#end
...
//
// AppDelegate.m
// TableViews1
//
#interface AppDelegate ()
#property (weak) IBOutlet NSWindow *window;
#property (strong) MainWindowController* mainWindowCtrl;
#end
#implementation AppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification {
// Insert code here to initialize your application
[self setMainWindowCtrl:[[MainWindowController alloc] init] ];
[[self mainWindowCtrl] showWindow:nil];
}
- (void)applicationWillTerminate:(NSNotification *)aNotification {
// Insert code here to tear down your application
}
#end
...
//
// MainWindowController.h
// TableViews1
//
#import <Cocoa/Cocoa.h>
#interface MainWindowController : NSWindowController
#end
...
//
// MainWindowController.m
// TableViews1
//
#import "MainWindowController.h"
#import "Employee.h"
#interface MainWindowController () <NSTableViewDataSource, NSTableViewDelegate>
#property (strong) NSMutableArray* employees;
#property (weak) IBOutlet NSTableView* tableView;
#end
#implementation MainWindowController
- (NSView*)tableView:(NSTableView *)tableView
viewForTableColumn:(NSTableColumn *)tableColumn
row:(NSInteger)row {
Employee* empl = [[self employees] objectAtIndex:row];
NSString* columnIdentifier = [tableColumn identifier];
//The column identifiers are "firstName" and "lastName", which match my property names.
//You set a column's identifier by repeatedly clicking on the TableView until only
//one of the columns is highlighted, then select the Identity Inspector and change the column's 'Identifier' field.
NSString* emplInfo = [empl valueForKey:columnIdentifier]; //Taking advantage of Key-Value coding
NSTableCellView *cellView =
[tableView makeViewWithIdentifier:columnIdentifier
owner:self];
NSLog(#"The Table view is asking for employee: %#", [empl firstName]);
[[cellView textField] setStringValue:emplInfo];
return cellView;
}
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
return [[self employees] count];
}
- (void)windowDidLoad {
[super windowDidLoad];
// Implement this method to handle any initialization after your window controller's window has been loaded from its nib file.
Employee* e1 = [[Employee alloc] initWithFirstName:#"Joe" lastName:#"Blow"];
Employee* e2 = [[Employee alloc] initWithFirstName:#"Jane" lastName:#"Doe"];
[self setEmployees:[NSMutableArray arrayWithObjects:e1, e2, nil]];
//Test to see if the employees array was populated correctly:
Employee* e = [[self employees] objectAtIndex:0];
NSLog(#"Here is the first employee: %#", [e firstName]);
//I see the output: "Here is the first employee: Joe"
}
- (id)init {
return [super initWithWindowNibName:#"MainWindow"];
}
- (id)initWithWindowNibName:(NSString *)windowNibName {
NSLog(#"Clients cannot call -[%# initWithWindowNibName] directly!",
[self class]
);
[self doesNotRecognizeSelector:_cmd];
return nil;
}
#end
...
//
// Employees.h
// TableViews1
#import <Foundation/Foundation.h>
#interface Employee : NSObject
#property NSString* firstName;
#property NSString* lastName;
- initWithFirstName:(NSString*)first lastName:(NSString*)last;
#end
...
//
// Employees.m
// TableViews1
//
#import "Employee.h"
#implementation Employee
- (id)initWithFirstName:(NSString *)first lastName:(NSString *)last {
if (self = [super init]) {
_firstName = first; //I read that you shouldn't use the accessors in init methods.
_lastName = last;
}
return self;
}
#end
File's Owner(=MainWindowController) connections:
NSTableView connections:
Response to comments:
Here is why calling [self tableView] reloadData] at the end of -windowDidLoad, as suggested in the comments, didn't work:
My _tableView instance variable--created by my #property declaration in MainWindowController.m--doesn't point to anything; therefore calling:
[[self tableView] reloadData]
I think is equivalent to calling:
[nil reloadData]
which doesn't do anything.
I never assigned anything to the _tableView instance variable in the -init method, nor did I assign it a value by dragging an outlet somewhere in Interface Builder. To fix that problem, I selected MainWindow.xib (the controller's window) in the Project Navigator(left pane), and then in the middle pane(Interface Builder), I selected the cube representing the File's Owner(selecting the Identity Inspector in the right pane reveals that the File's Owner is the MainWindowController). Then in the right pane, I selected the Connections Inspector, and it revealed an outlet called tableView, which is the IBOutlet variable I declared in MainWindowController.m.
Next, I dragged from the tableView outlet onto the TableView in the middle pane:
Doing that assigns the NSTableView object to the _tableView instance variable that was created by my #property declaration in MyWindowControler.m:
#property (weak) IBOutlet NSTableView* tableView;
As an experiment, I disconnected the outlet, then commented out the #property declaration for tableview, and the tableView outlet no longer appeared in the Connections Inspector. Also, if I change the declaration from:
#property (weak) IBOutlet NSTableView* tableView;
to:
#property (weak) NSTableView* tableView;
...then the tableView outlet doesn't appear in the Connections Inspector. That experiment answered a couple of questions I had about whether I should declare a property as an IBOutlet or not: if you need to assign one of the objects in Interface Builder to one of your variables, then declare the variable as an IBOutlet.
Thereafter, calling [self tableView] reloadData] at the end of -windowDidLoad succeeds in populating the TableView. However, I have not seen any tutorials that call reloadData, and even Apple's guide does not do that.
So, I am still puzzled about whether calling -reloadData is a hack or it's the correct way to do things.
Without it, your table view sits there blissfully clueless about your
expectation that it should even bother asking its datasource for data.
I assumed that an NSTableView automatically queries its datasource when it is ready to display itself, and that my code needed to be able to provide the data at that time.
I don't see you sending -reloadData to your table view anywhere. Tacking it onto the end of -windowDidLoad would be a good place. Without it, your table view sits there blissfully clueless about your expectation that it should even bother asking its datasource for data.
For all it knows, the data is simply not ready / available, so why would it try? More importantly, when should it try? It'd be rather rude of it to try whenever it pleases, considering the UI may not have finished loading / connecting to outlets, or its datasource may be in a vulnerable state (like teardown during/after dealloc) and sending datasource requests may result in a crash, etc.
Two things:
1st, set some breakpoints on when you set your employees array in windowDidLoad vs. when the table first attempts to populate itself and your numberOfRowsInTableView implementation gets called. If the latter happens before the former, then you'll need to add a reloadData after you create your array.
2nd, I personally always use NSCell instead of NSViews for my tables, so I always implement objectValueForTableColumn in my table's datasource. So I'm not sure if there's something different you need to do when you use NSView objects and implement viewForTableColumn. Is there a reason you're not using NSCell?
I have a dynamic NSTableView which can add a number of columns depending on the data provided. For each column I have set the header cell to be a NSPopUpButtonCell. (Side-note: I've had to use a custom subclass class for NSTableHeaderView otherwise the menu doesn't pop-up). All works well, apart from a duplicate or extra header button cell on the top right. It mirrors perfectly the previous column selection as shown in screenshots. My question is how do I stop the NSTableView from recycling the previous popup header cell? (By the way I have tried the setCornerView method but that only effects the header area above the vertical scrollbar.)
I came across the same problem this week. I went with the quick fix,
[_tableView sizeLastColumnToFit];
(However, after discussion with OP this requires that you use a subclass of NSPopUpButtonCell in the header and also NSTableHeaderView. I attach my solution below)
You can to this by combining the approaches outlined here,
PopUpTableHeaderCell
DataTableHeaderView
Here is a simplified snippet,
// PopUpTableHeaderCell.h
#import <Cocoa/Cocoa.h>
/* Credit: http://www.cocoabuilder.com/archive/cocoa/133285-placing-controls-inside-table-header-view-solution.html#133285 */
#interface PopUpTableHeaderCell : NSPopUpButtonCell
#property (strong) NSTableHeaderCell *tableHeaderCell; // Just used for drawing the background
#end
// PopUpTableHeaderCell.m
#implementation PopUpTableHeaderCell
- (id)init {
if (self = [super init]){
// Init our table header cell and set a blank title, ready for drawing
_tableHeaderCell = [[NSTableHeaderCell alloc] init];
[_tableHeaderCell setTitle:#""];
// Set up the popup cell attributes
[self setControlSize:NSMiniControlSize];
[self setArrowPosition:NSPopUpNoArrow];
[self setBordered:NO];
[self setBezeled:NO];
[self setFont:[NSFont systemFontOfSize:[NSFont smallSystemFontSize]]];
}
return self;
}
// We do all drawing ourselves to make our popup cell look like a header cell
- (void)drawWithFrame:(NSRect)cellFrame inView:(NSView*)controlView{
[_tableHeaderCell drawWithFrame:cellFrame inView:controlView];
// Now draw the text and image over the top
[self drawInteriorWithFrame:cellFrame inView:controlView];
}
#end
Now for the NSTableViewHeader subclass.
//DataTableHeaderView.h
#import <Cocoa/Cocoa.h>
/* Credit: http://forums.macnn.com/79/developer-center/304072/problem-of-nspopupbuttoncell-within-nstableheaderview/ */
#interface DataTableHeaderView : NSTableHeaderView
#end
//DataTableHeaderView.m
#import "DataTableHeaderView.h"
/* Credit: http://forums.macnn.com/79/developer-center/304072/problem-of-nspopupbuttoncell-within-nstableheaderview/ */
#implementation DataTableHeaderView
- (id)initWithFrame:(NSRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Initialization code here.
}
return self;
}
- (void)mouseDown:(NSEvent *)theEvent {
// Figure which column, if any, was clicked
NSPoint clickedPoint = [self convertPoint:theEvent.locationInWindow fromView:nil];
NSInteger columnIndex = [self columnAtPoint:clickedPoint];
if (columnIndex < 0) {
return [super mouseDown:theEvent];
}
NSRect columnRect = [self headerRectOfColumn:columnIndex];
// I want to preserve column resizing. If you do not, remove this
if (![self mouse:clickedPoint inRect:NSInsetRect(columnRect, 3, 0)]) {
return [super mouseDown:theEvent];
}
// Now, pop the cell's menu
[[[self.tableView.tableColumns objectAtIndex:columnIndex] headerCell] performClickWithFrame:columnRect inView:self];
[self setNeedsDisplay:YES];
}
- (BOOL)isOpaque {
return NO;
}
- (void)drawRect:(NSRect)dirtyRect {
[super drawRect:dirtyRect];
// Drawing code here.
}
#end
You can tie everything together in the AppDelegate -awakeFromNib or similar,
-(void) awakeFromNib {
/* NB the NSTableHeaderView class is changed to be an DataTableHeaderView in IB! */
NSUInteger numberOfColumnsWanted = 5;
for (NSUInteger i=0; i<numberOfColumnsWanted; i++) {
PopUpTableHeaderCell *headerCell;
headerCell = [[PopUpTableHeaderCell alloc] init];
[headerCell addItemWithTitle:#"item 1"];
[headerCell addItemWithTitle:#"item 2"];
[headerCell addItemWithTitle:#"item 3"];
NSTableColumn *column;
[column setHeaderCell:headerCell];
[column sizeToFit];
[_tableView addTableColumn:column];
}
/* If we don't do this we get a final (space filling) column with an unclickable (dummy) header */
[_tableView sizeLastColumnToFit];
}
Other than that I haven't figured out how to properly correct the drawing in that region.
It seems like it's the image of the last cell that is being duplicated. So I slightly more hack-ish approach would be to add a extra column to your table view with a blank name and which intentionally ignores the mouse clicks. Hopefully by setting the display properties of the last column you can make it look the way you want.
I couldn't find any NSTableView or NSTableViewDelegate method that allow control of this region, so may any other solution would be very complicated. I would be interested in a nice solution too, but I hope this gets you started!
I have this issue and i don't use NSPopUpButtonCell at all.
I just want to tell about other method how to hide this odd header. This methods will not remove an odd table column, i.e. if you have 2 'legal' columns and hide this extra 3rd column header, you will still be able to move separator between 2nd and 3rd column. But in this case you won't see redundant header even if you want to resize any column.
I still need solution how to completely remove the redundant column, and why this is happening. (and why Apple won't fix this bug?)
So... you can just calculate index of column which this header belongs to and according to this draw your header or don't. First, subclass NSTableHeaderCell and set it as a cell class for columns. Let assume your subclass named TableHeaderCell:
for column in self.tableView.tableColumns {
let col:NSTableColumn = column as! NSTableColumn
//you can operate with header cells even for view-based tableView's
//although the documentation says otherwise.
col.headerCell = TableHeaderCell(textCell: col.title)
//or what initialiser you will have
}
Then in TableHeaderCell's drawWithFrame method you should have:
override func drawWithFrame(cellFrame: NSRect, inView controlView: NSView) {
let headerView = controlView as! HashTableHeaderView
let columnIndex = headerView.columnAtPoint(cellFrame.origin)
if columnIndex == -1 {
return
}
//parent's drawWithFrame or your own draw logic:
super.drawWithFrame(cellFrame, inView: controlView)
}
After this you won't have redundant header drawn because it not belongs to any column and columnAtPoint method will return -1.
I have my core data shown in a NSTableView. I want to be able to use user inputs (NSTextFields) to populate the next row when the user clicks add.
My current approach is to try to use a manager object to collect the string value from the text field and then make that the default for the next core data addition.
for some reason after I alloc and init the textfield I cant use the value (it shows up as blank in my table) (not null).
Can you please advise? Thank you in advance:
//this is my core data object
// ItemEntity.h
#import <Foundation/Foundation.h>
#interface ItemEntity : NSManagedObject{
}
-(NSString *) titleValue;
#end
// ItemEntity.m
#import "ItemEntity.h"
#import "MyManager.h"
#implementation ItemEntity
-(NSString *)titleValue{
MyManager *sharedManager = [MyManager sharedManager];
NSString *nam = [NSString stringWithFormat:#"%#", sharedManager.titleText]; //titleText from MyManager;
return nam;
}
#end
// MyManager.h
#import <Foundation/Foundation.h>
#interface MyManager : NSObject {
#private
IBOutlet NSTextField *titleLabel;
NSString *titleText;
}
#property (nonatomic, retain) NSString *titleText;
+ (id)sharedManager;
#end
// MyManager.m
#import "MyManager.h"
#implementation MyManager
#synthesize titleText;
+ (id)sharedManager {
static MyManager *sharedMyManager = nil;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sharedMyManager = [[self alloc] init];
});
return sharedMyManager;
}
- (id)init {
if (self = [super init]) {
titleLabel = [[NSTextField alloc] init];
NSString *myString = [titleLabel stringValue];
titleText = [[NSString alloc] initWithFormat:#"default, %#", myString];
}
return self;
}
#end
titleLabel links to the input NSTextField
titleText is a singleton that passes the string to ItemEntity
titleValue is the model key path in core data
Thank you!
you can do following steps:
1)Create New project using core data
2)you will find CoreDataExample.xcdatamodelid, click on that.
3)select entity and click on Add Entity, this option will be in bottom.
4)select Entities and add attribute and set type as string
5)go to mainmenu.xib drag table view, text field and two buttons "+" and "-".
make tableview non editable
5)drag one array controller in main menu.xib,select arraycontroller go to Attribute inspector
make the changes in following parameter
Mode - Entity Name
Entity Name - label (whatever you have given in "CoreDataExample.xcdatamodelid")
check two checkbox - prepare and Editable
6)select table column bind to ArrayController, controller key:arrangedObjects
modelKeypath:titleValue
select Textfield bind to ArrayController, controller key:selection modelKeypath:titleValue
8)connect + button to ArrayController's add action, Connect - button to ArrayController's
remove action.
9)launch the application, cick on add button, row will be add to table view, start typing in
text field, tab out and see table view will populate with same thing
How can one have checkboxes and textfield (for section headings) in a single tableview column using NSTableViewDataSource Protocol?
My requirement is to use a Cell Based TableView.
I answered your other question without any code and i think you had trouble understanding it.
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
// Insert code here to initialize your application
array = [[NSMutableArray alloc]initWithObjects:#0,#1,#2, nil];//instead this you can add your class object
[self.myTableView reloadData];
}
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView
{
return [array count];
}
- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row
{
NSButtonCell * cell =[[NSButtonCell alloc]init];
[cell setButtonType:NSSwitchButton];
if([array objectAtIndex:row] == [NSNumber numberWithInt:0])
{
[tableColumn setDataCell:cell];
[[tableColumn dataCell]setTitle:#"Are you single?"];// instead this you can access title from your class object or from any other storage
}
else if ([array objectAtIndex:row] == [NSNumber numberWithInt:1])
{
[tableColumn setDataCell:[[NSTextFieldCell alloc]init]];
}
else if ([array objectAtIndex:row] == [NSNumber numberWithInt:2])
{
[tableColumn setDataCell:cell];
[[tableColumn dataCell]setTitle:#"Are you happy?"];
}
return [array objectAtIndex:row];
}
So thought this would help:) Cheers.
Here are the steps to make a single column tableview where the column can have row(s) that are section headings (NSTextFieldCells) followed by rows that are checkboxes (NSButtonCells) having descriptive titles. Similar to a listbox in MS MFC. To be compatible with older versions of OS X it needs to be a Cell based tableview:
Using IB drag a tableView control into the Application Window. In the Attributes inspector set Content Mode as "Cell Based", and Columns to 1.
Using IB drag a "Check Box Cell" control from the Object Library into the Application Window's column. (note: this step probably can be omitted since in the example code shown below, the cell type is being set explicitly to be either a NSButtonCell (checkbox) or NSTextFieldCell). If one needs to expand this example to use multiple columns, then probably want to set the Identifier for the NSTableColumn(s) in IB's Identity Inspector, in order that in the code one can filter by column/row instead of only by row (i.e. inside of the method objectValueForTableColumn).
Set the TableView's datasource and delegate to be the auto generated App Delegate object (in this case ApplicationAppDelegate.h). Do this by opening IB, and using the "Connection Inspector" click and drag from the datasource circle connection icon to the "App Delegate" object icon in the IB panel that shows objects that are loaded from the NIB such as controls, controllers etc.(icon for App Delegate is a blue cube). Do the same click and drag operation with the delegate circle icon.
Open the Assistant Editor, with the App Delegate's .h file showing in the left vertical pane and the IB view of the Table View in the right vertical pane. Select on the TableView control and create an IB outlet named "tableView" by holding the control key and dragging from the TableView Control to the section of the .h file where properties are listed.
Declare a NSMutableArray variable in the .h file. It should look like the following (Note: there has been added NSTableViewDataSource as a supported protocol of ApplicationAppDelegate):
#import <Cocoa/Cocoa.h>
#interface ApplicationAppDelegate : NSObject <NSApplicationDelegate,NSTableViewDataSource>
{
NSMutableArray *state;
}
#property (assign) IBOutlet NSWindow *window;
#property (weak) IBOutlet NSTableView *tableView;
#end
6 . Add the following functions to the App Delegate implementation file (.m):
#import "ApplicationAppDelegate.h"
#implementation ApplicationAppDelegate
- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
state = [[NSMutableArray alloc]initWithObjects:#"Section Heading:",#0,#1, nil];//Note: values passed to NSButtonCells should be 0 or 1 or YES or NO, and the state passed to NSTextFieldCell is a NSString
[self.tableView reloadData];
}
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView
{
return [state count];
}
- (id)tableView:(NSTableView *)tableView objectValueForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row
{
NSButtonCell * cell =[[NSButtonCell alloc]init];
[cell setButtonType:NSSwitchButton];
if (row == 0)
{
[tableColumn setDataCell:[[NSTextFieldCell alloc]init]];
}
else if (row == 1)
{
[tableColumn setDataCell:cell];
[[tableColumn dataCell]setTitle:#"title row1"];
}
else if (row == 2)
{
[tableColumn setDataCell:cell];
[[tableColumn dataCell]setTitle:#"title row2"];
}
return [state objectAtIndex:row];
}
- (void)tableView:(NSTableView *)tableView setObjectValue:(id)value forTableColumn:(NSTableColumn *)column row:(NSInteger)row
{
[state replaceObjectAtIndex:row withObject:value];
[tableView reloadData];
}
#end
I created a View-Based NSTableView with a single column. This column is populated with a standard NSTableCellView from Interface Builder (I chose the version with image and textfield).
Now I want to make the textfield in the column editable.
My first attempt was to modify the NSTextField from Interface builder and set its behaviour as Editable. It works, indeed when I select a row and I push the enter key the field becomes editable and I can change its value. I thought I would be able to intercept this change thanks to some NSTableViewDataSource method like tableView:setObjectValue:forTableColumn:row: but this method never gets called in response of a textfield edit action.
Which is the right way to deal with editable field in a view-based NSTableView system? I suppose that the NSTableViewDataSource has something to do with it but I don't know how to get its methods called.
Create a subclass of NSTableCellView. (The appropriate .h and .m files) Make the class respond to the NSTextFieldDelegate protocol. Implement the control:textShouldEndEditing: method. Make this subclass the delegate of your label control.
Here is some example code.
CategoryListCell.h
#interface CategoryListCell : NSTableCellView
#end
CategoryListCell.m
#interface CategoryListCell()<NSTextFieldDelegate>
#property (weak) IBOutlet NSTextField *categoryLabel;
#property (assign) BOOL editing;
#property (copy) NSString* category;
#end
#implementation CategoryListCell
- (BOOL)control:(NSControl*)control textShouldBeginEditing:(NSText *)fieldEditor {
self.editing = YES;
return YES;
}
- (BOOL)control:(NSControl *)control textShouldEndEditing:(NSText *)fieldEditor; {
if (self.editing) {
self.editing = NO;
[self mergeFromSource:self.category toDestination:self.categoryLabel.stringValue];
}
return YES;
}
- (void)mergeFromSource:(NSString*)source toDestination:(NSString*) destination {
// your work here
}
#end
Sounds like you need to subclass the NSView that's in the NSTableView cell and make the subclassed view a delegate of the textfield. Your view will then get text change notifications via the NSTextField delegate method:
- (void)textDidChange:(NSNotification *)notification;