How to delete a row from table view IOS

Question

I want to delete a row from table view without using the below data source method. How to do it?

- (void) tableView : (UITableView *)tableView 
commitEditingStyle : (UITableViewCellEditingStyle)editingStyle 
 forRowAtIndexPath : (NSIndexPath *)indexPath

Delete the row from the source (NSArray), then reload the tableView. I think this would be work. — Scar
– Scar, Commented Aug 9, 2012 at 4:32

Michael Dautermann · Accepted Answer · 2012-08-09 04:32:20Z

3

How about [UITableView deleteRowsAtIndexPaths: withRowAnimation:]?

(I've linked Apple's documentation linked for you).

@Scar's idea is also good, but that will refresh the entire table and that might be a bit disruptive to the user if they're scrolled to the bottom of the table and the refresh takes them to the top.

answered Aug 9, 2012 at 4:32

Michael Dautermann

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3 Comments

Michael Dautermann Over a year ago

You have to create it. If you know the row, it's as easy as "NSIndexPath * myIndexPath = [NSIndexPath indexPathForRow: rowNumber inSection: sectionNumber]; (and I've linked this documentation for you, too).

deleted_user Over a year ago

its not fully correct your app will not read the right rows from the backing datasource.

Michael Dautermann Over a year ago

You're right about this, @stackmonster. Not only does the row have to be removed from the table, it has to be removed from the backing data source as well. +1 to you!

deleted_user · Accepted Answer · 2012-08-09 04:42:18Z

3

Not quite that simple, you have to do this atomically with a UITableView

[_tableView beginUpdates]; // <-- pretty important

long selectedRow = _tableView.selectedRow;

[_tableView removeRowsAtIndexes:[NSIndexSet indexSetWithIndex:selectedRow] withAnimation:NSTableViewAnimationSlideUp];

//then remove your object from the array
[((NSMutableArray*) _searchResults) removeObjectAtIndex:selectedRow];

[_tableView endUpdates];

This prevents delegate methods from being called while the array is being updated.

answered Aug 9, 2012 at 4:42

deleted_user

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Comments

Jeffery Thomas · Accepted Answer · 2012-08-09 04:31:56Z

1

Remove the row from your model and call -deleteRowsAtIndexPaths:withRowAnimation:.

answered Aug 9, 2012 at 4:31

Jeffery Thomas

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