iOS tableView with sections - how to get global index

Question

I have question : I created table with multiple sections (they are set from webService response, so they are dynamic). For example, first section have 3 cells (0,1,2), second section - 4 cells (0,1,2,3), third section - 7 cells (0,1,2,3,4,5,6).

When I click, for example, on third cell in third section, I can only get a number in which this cell is (third section), and a number of cell IN CURRENT SECTION (third cell). But I would like to know, no matter which section, what is the cell's number (so, in the above example - third cell in third section, it would be tenth cell)

What to do? how to get that number?

Answer 1

for example in tableView:cellForRowAtIndexPath: if you want to use it in the cell as text.

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    //....
    NSInteger sum = 0;
    for(NSInteger idx = 0; idx < indexPath.section, ++idx){
        sum += [tableView tableView:tableView numberOfRowsInSection:idx];
    }
    sum += indexPath.row +1;
    //....
}

but also tableView:didSelectRowAtIndexPath: would work.