macos - NSTableView 单元格编辑：在哪里进行后期编辑操作？

Question

NSTableView我通过直接选择单元格 ( NSTextFieldCell) 并编辑其中的文本来修改 a 的源数据。

我需要在编辑单元格之前和之后对单元格执行一些操作。我在编辑之前执行了这样的操作：

- (BOOL)tableView:(NSTableView *)aTableView shouldEditTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex

但是我可以在哪里执行编辑后的操作？

谢谢

Answer 1

https://developer.apple.com/library/mac/documentation/Cocoa/Reference/ApplicationKit/Protocols/NSTableDataSource_Protocol/index.html#//apple_ref/occ/intfm/NSTableViewDataSource/tableView:setObjectValue:forTableColumn:row:

- (void)tableView:(NSTableView *)aTableView
   setObjectValue:(id)anObject
   forTableColumn:(NSTableColumn *)aTableColumn
              row:(NSInteger)rowIndex

Quoted from: https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/TableView/PopulatingCellTables/PopulatingCellTables.html

For your app to edit the content of an NSCell-based table view, you implement the tableView:setObjectValue:forTableColumn:row: data source protocol method. This method is similar to tableView:objectValueForTableColumn:row:, which provides the data for the table view, but instead of requesting that you return a value for the specified row and column, it provides the new value for that row and cell

Answer 2

让google搜索nstableview edit change，你会得到很多详细的答案。

简而言之：使用（某些）以下（和类似的）委托方法：

- (void)controlTextDidEndEditing:(NSNotification *)obj
- (void)controlTextDidChange:(NSNotification *)aNotification
- (BOOL)control:(NSControl *)control textShouldEndEditing:(NSText *)fieldEditor

并测试它们以显示适合您的应用程序的内容：

- (void)controlTextDidEndEditing:(NSNotification *)obj
{
    NSDictionary *userInfo = [obj userInfo];
    NSTextView *aView = [userInfo valueForKey:@"NSFieldEditor"];
    NSLog(@"controlTextDidEndEditing %@", [aView string] );
}

- (void)controlTextDidChange:(NSNotification *)aNotification
{
    NSDictionary *userInfo = [aNotification userInfo];
    NSTextView *aView = [userInfo valueForKey:@"NSFieldEditor"];
    NSLog(@"controlTextDidChange >>%@<<", [aView string] );
}

- (BOOL)control:(NSControl *)control textShouldEndEditing:(NSText *)fieldEditor
{
    NSLog(@"control: textShouldEndEditing >%@<", [fieldEditor string] );
    return YES;
}

您可以这样做，因为 s; 的单元格NSTableView是NSTextFieldCells;