Edit mode for a single section

Question

Hi,
How can one enable edit mode for a single section in a UITableView with group sections.
Thanks.

Answer 1

Something like this should work for you:
@interface RootViewController : UITableViewController {
NSNumber *sectionToEdit;
@property (nonatomic, retain) NSNumber *sectionToEdit;
- (IBAction)doEdit:(id)sender; // test bed only
@end
@implementation RootViewController
@synthesize sectionToEdit;
- (void)dealloc {
[sectionToEdit release];
[super dealloc];
- (void)editSection:(BOOL)editing section:(int)section animated:(BOOL)animated {
UITableView *tableView = self.tableView;
self.sectionToEdit = editing ? [NSNumber numberWithInt:section] : nil;
[tableView setEditing:editing animated:animated];
// test bed driver
- (IBAction)doEdit:(id)sender {
static BOOL editing = NO;
editing = !editing;
[self editSection:editing section:2 animated:YES];
#pragma mark Table view methods
- (BOOL)tableView:(UITableView *)tableView
canEditRowAtIndexPath:(NSIndexPath *)indexPath {
if (sectionToEdit == nil)
return YES;
else if ([sectionToEdit intValue] == indexPath.section)
return YES;
else
return NO;
- (UITableViewCellEditingStyle)tableView:(UITableView *)tableView
editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath {
return UITableViewCellEditingStyleInsert;
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 3;
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return 3;
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:CellIdentifier] autorelease];
cell.textLabel.text = [NSString stringWithFormat:@"Section %d - Row %d",
indexPath.section, indexPath.row];
return cell;
Note that once a section is selected for editing, the above locks out all the other sections until the edit of the selected section is finished. I assume this is what you'd want. However if you're also providing a standard editing button to put the entire table in editing mode, you might want to change the control structure a little. E.g. if the standard button remains enabled during a section edit session, its action should probably set SectionToEdit to nil before starting the animation.
- Ray