如何使用 InterfaceBuilder 绑定对 NSTableColumn 中的绑定数据进行排序？
使用 IB 绑定对 NSTableColumn 中的绑定数据进行排序。
键： NSTableColumn 、排序、NSArrayController、内容集
contentSet 充当 TableColumn 的数据源，
它处理具有两个单列 NSTableView 的 SplitView TableViews 的名称是 BookCategory 和 图书。 书籍表有一个包含 book_titles 的列。 Class BookCategory 具有一对多关系 预订。
BookCategory 表在加载时使用以下方式进行排序：
@implementation MyBookCategoryController
- (id)init
{
self = [super init];
if (self) {
// Initialization code here.
NSSortDescriptor *descript =
[NSSortDescriptor sortDescriptorWithKey:@"name"
ascending:YES selector:@selector(caseInsensitiveCompare:)];
[self setSortDescriptors:[[NSArray arrayWithObject:descript] autorelease] ];
}
return self;
}
This same approach fails to sort the BookTitle table at load. !!
The BookTitle table/column loads unsorted.
For the TableColumn the Attributes Inspector has
Sort Key:title
Selector: caseInsensitiveCompare:
Order: Ascending
这似乎可以在单击时启用排序 在列标题上。
I want the data sorted when the view loads.
The binding inspector for this book_title column has:
Value : BookCategoryArrayController.arrangedObjects.name
The BookTitleArrayController in binding inspector shows
Content Set: Book Category ArrayController.selection.books
为了重述问题，带有书名的表格视图 加载未排序。仅在用户第一次单击后才排序 列标题。
假设有三个书籍类别：艺术、历史、体育。 当应用程序加载拆分视图中的左表时，它已排序， 即：
Art
History
Sports
当用户选择任何类别时，所有书籍的标题 类别中的内容出现在右侧的 tableView 中但未排序。 如果用户点击 book_title TableColumn 的 Header 初始排序是在列上完成的。此后 选择任何书籍类别都会导致排序显示 右侧 tableView 中的 book_titles。也就是说，只有第一个 选择类别会产生未排序的书名列表。
非常感谢您的阅读，马克
Sorting Bound Data in NSTableColumn using IB binding.
Keys: NSTableColumn , sorting, NSArrayController, Content Set
A contentSet serves like a data source for a TableColumn
This deals with a SplitView with two single column NSTableViews
The names of the TableViews are BookCategory and
Books.
The Books Table has a single column with book_titles.
The Class BookCategory has a one to many relationship
to Book.
The BookCategory Table is sorted at load using:
@implementation MyBookCategoryController
- (id)init
{
self = [super init];
if (self) {
// Initialization code here.
NSSortDescriptor *descript =
[NSSortDescriptor sortDescriptorWithKey:@"name"
ascending:YES selector:@selector(caseInsensitiveCompare:)];
[self setSortDescriptors:[[NSArray arrayWithObject:descript] autorelease] ];
}
return self;
}
This same approach fails to sort the BookTitle table at load. !!
The BookTitle table/column loads unsorted.
For the TableColumn the Attributes Inspector has
Sort Key:title
Selector: caseInsensitiveCompare:
Order: Ascending
This appears to enable the sorting when one clicks
on the column header.
I want the data sorted when the view loads.
The binding inspector for this book_title column has:
Value : BookCategoryArrayController.arrangedObjects.name
The BookTitleArrayController in binding inspector shows
Content Set: Book Category ArrayController.selection.books
To restate the problem, the tableview with the book titles
load unsorted. It sorts only after the user's FIRST click on the
column header.
Say there are three book categories Art, History, Sports.
When the app loads the left table in the splitview is sorted,
that is :
Art
History
Sports
When the user selects ANY category, titles for all books
in the category appear in the right tableView but unsorted.
If the user clicks on the Header of the book_title TableColumn
the initial sorting is done on the column. Thereafter
the selection of ANY book category causes a sorted display
of book_titles in the right tableView. That is, ONLY the first
selection of a category results in an Unsorted book title list.
Thanks a lot for reading, Mark
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这是最终对我有用的概述。
This is an outline of what finally worked for me.