I dragged a Table View from the library, and linked the datasource and delegate, it worked. But when the Application is running, I can double click the row in the table, and actually put some words in it. I just want it to be non-editable. What should I do?
Implement the following delegate method that will return NO
- (BOOL)tableView:(NSTableView *)aTableView shouldEditTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
{
return NO;
}
You can just uncheck the Editable button in table column attributes in xib file.
Related
When I use a custom view as the cell of a view-based NSTableView, the custom view is somewhat below the table row. When I click on it, instead of affecting the elements (e.g. text field) custom view, the table row was selected (and highlighted). I have to reclick to select the text field.
- (NSView*)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row {
NSLog(#"We are creating views!");
NSTableCellView *newView;
newView = [tableView makeViewWithIdentifier:#"PostCell" owner:self];
NSTextField *newTextField = [[NSTextField alloc] init];
[newView addSubview:newTextField];
return newView;
}
When I disable the row selection according to NSTableView - Disable Row Selection, there was no selection.
- (BOOL)selectionShouldChangeInTableView:(NSTableView *)tableView {
return NO;
}
But I still cannot select directly the text field. What's worse, I cannot even select it using the mouse. Only tab on the keyboard works.
There seem to be something above it. But is it the "table column" shown in interface builder? Or something else?
How can I fix this?
Use a custom subclass of NSTableView and override -validateProposedFirstResponder:forEvent: to return YES.
See this blog entry from the Apple engineer who wrote the view-based table view code.
Make sure following code is present.
- (BOOL)tableView:(NSTableView *)aTableView shouldSelectRow:(NSInteger)rowIndex {
return YES;
}
You may try logging the subviews Or you can check superviews of view.
This will help to understand view hierarchy.
Also on side note if one of the view's userInteraction is disable then it's subview's won't be able to receive the events. Please verify that all the views and it's subviews userInteraction is enable.
I hope this helps.
I am a little stuck and can't seem to work this out from the apple docs.
I have two buttons in an NSTable column, contained within an NSTableCellView.
I am trying to, in code, hide the button depending on the values of the object in the row.
Getting the values is fine, but i can't work out how to target the specific button, i can't bind it to an outlet as it's within a table. I have tried the below code, but that just hides the entire NSTableCellView rather than the specific button, i have also tried changing the identifier to be of the button, but that seems to do the same.
if(selectedTweet.imageURL){
NSButton *imageButton = [tableView makeViewWithIdentifier:#"secondButtons" owner:self];
[imageButton setHidden:NO];
return imageButton;
} else {
NSButton *imageButton = [tableView makeViewWithIdentifier:#"secondButtons" owner:self];
[imageButton setHidden:YES];
return imageButton;
}
This is obviously much simpler than i am making it?? Help greatly appreciated.
Thanks
Gareth
If you are using CocoaBindings to populate that table, you can just bind the button's "Hidden" attribute to Table Cell View/objectValue.imageURL and use the NSIsNil value transformer. No code needed at all.
If you are using an old-fashioned data source, things become a tad more complicated. In that case you could have a imageButton property in your object, and set it in the NSTableViewDelegate's - (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row method.
OK, so here's my situation :
I've got an NSTableView.
Its columns are bound to an NSArrayController.
... which in turn is bound to an NSMutableArray.
However :
When the user click in any of the cells, he's allowed to edit their content.
We DON'T want that.
How should I do it, so that no table cells are editable?
In your NSTableViewDelegate return NO for this method:
- (BOOL)tableView:(NSTableView *)aTableView shouldEditTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
How I can store text field data in a view controller into a tableView cell in a TableViewController With Xcode using data source?
That means when the user taps "+" it will show another view that has the text field. When the user enters the text and presses save, the entered data will be stored as a table cell.
First make sure you understand data sources. Then you have to implement
- (NSInteger)numberOfRowsInTableView:(NSTableView *)tableView {
return self.data.count;
}
- (NSView *)tableView:(NSTableView *)tableView
viewForTableColumn:(NSTableColumn *)tableColumn
row:(NSInteger)row {
NSTableCellView * result = [tableView makeViewWithIdentifier:#"identifier" owner:self];
result.textField = #"Your special string";
return result;
}
After having setup it in IB like this and having connected the outlet of the Table View data source to your custom objects class (the class the above code is in) it should look like this
Please notice I used the same identifier as in the code so that I can get the created table cell view back easily.
self.data could be an array for example in which you store all your underlying objects (for the cell creation).
Of course you could also add any kind of UI elements to the cell view as well. In this case I use a custom subclass for the cell view. You would have to do something like this then (and set your class as the class of the cell view within IB of course. This is the part in the screenshot that has an NSTableCellView currently in it. It had to be MyGreatCellView from now on):
#interface MyGreatCellView : NSTableCellView {
IBOutlet NSTextField *files;
}
#property (assign) NSTextField *files;
Then you could also refer to result.files in the tableView:vieForTableColumn:row for example.
If something is unclear, just ask.
Getting the UITextField data onto a TableView Cell.
Here is a query for some one for the same issue.I think it will help you.
I have a NSTableVIew for multi-selection purposes with two columns, the first one with a NSButtonCell as checkbox and the other one as a title.
The idea is to check the items to be added afterwords to an array.
The problem is that the checkboxes don't change its state when I click them. I've tried to attach an IBAction but the sender to de action is the TableView but not the checkbox
Any ideas (or link) about how to achieve this kind of functionality?
Going on the assumption you're using a NSTableViewDataSource you need to implement three methods:
- (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
- (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex
- (NSInteger)numberOfRowsInTableView:(NSTableView *)aTableView
When the checkbox is clicked the first method is called. If aTableColumn has your checkboxes you would save the new state, which is [anObject boolValue].
When the table needs to draw a row, it calls the second method. When the table column is your checkbox column, return the state that you saved in the first method.
The last method tells the table view how many rows there will be.
See the table data source documentation for more details, but I've pretty much summarized it here.