Question

In my app if user press on any cell in UITableView then accessoryType of cell will be set to check mark like following

-(void)Check:(UITableView *)tableView Mark:(NSIndexPath *)indexPath  
{  
[self.tableView cellForRowAtIndexPath:indexPath].accessoryType = UITableViewCellAccessoryCheckmark;  
     buttonCount++;  
    [selectedCellArray addObject:indexPath];  
} 

and if user press the same cell then uncheck will happen as follows

-(void)UnCheck:(UITableView *)tableView Mark:(NSIndexPath *)indexPath  
{  
[self.tableView cellForRowAtIndexPath:indexPath].accessoryType =   UITableViewCellAccessoryNone;  
    buttonCount--;    
     if (buttonCount == 0) {    

        [selectedCellArray removeAllObjects];  
    }  
}    

and i am calling this

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{  
if([tableView cellForRowAtIndexPath:indexPath].accessoryType == UITableViewCellAccessoryCheckmark)
    {  
        [self UnCheck:tableView Mark:indexPath];  
    }  
else  
    {  
        [self Check:tableView Mark:indexPath];

    }

Problem is when i am pressing on 1st cell it call Check method and mark the cell to but when i am scroll down i find 2-3 more cheked cell …even i did not select those cell…i dont know why and how it checked automatically …
i hope some one know where is the problem
thank you very much

Answer 1

Because cells will be reused by the tableview. Also set the checkmark/accessory type in your tableView:cellForRowAtIndexPath: method.