All specific column data of every row. QTableView

[Jarrod]

Hi,

How can I get all the data from a specific column?
I have managed to pull the data from a specific cell, but I want all the data in the cells from a specific column.

number = ui->tableView->model()->data(ui->tableView->model()->index(0,5)).toString();

number = ui->tableView->model()->data(ui->tableView->model()->index(0,5)).toString();

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This obviously just gives me the data in that exact index. I want to retrieve all the data from column 5, with x amount of rows.

Thanks.

[anda_skoa]

You loop over the number of rows and use the loop variable as the row argument ot the index() function.

http://www.tutorialspoint.com/cplusp...p_for_loop.htm

Cheers,
_

[Jarrod]

Thanks for your reply, was just typing that I had figured it out.

---

Added after 5 minutes:

Well...I thought I had figured it out.
My code isn't give me all the rows, it only gives me the one row.

int rows = model->rowCount();
 
    for (int i = 0; i < rows; i++)
    {
            number = ui->tableView->model()->data(ui->tableView->model()->index(i,5)).toString();
            number2 = ui->tableView->model()->data(ui->tableView->model()->index(i,6)).toString();
    }

int rows = model->rowCount();

    for (int i = 0; i < rows; i++)
    {
            number = ui->tableView->model()->data(ui->tableView->model()->index(i,5)).toString();
            number2 = ui->tableView->model()->data(ui->tableView->model()->index(i,6)).toString();
    }

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Thanks

[anda_skoa]

Are you calling rowCount() on the same model as you are using for index() and data()?

Is the "rows" value what you expect?

Cheers,
_

[Jarrod]

Yes I am using it on the same model.
It calls correctly, but it only calls 1 row, not all of the rows. Seems the forloop ends after the first row has been iterated through(I have multiple rows and potentially thousands of rows).

Thanks

[anda_skoa]

So, what value does "rows" have?

Cheers,
_

[Jarrod]

I'm not sure if I'm understanding your question correctly.
Well each row has names and numbers. The index(i,5) and index(i,6) are 2 numbers which I am pulling out and adding together(As well as performing some other operations on them), then displaying the result in a different QTableModel. It seems to work just fine but for only the first row, maybe I have setup my forloop incorrectly?

I used a similar forloop to add data to the tableView from a txt file and that works with no problem. I can add a txt file full of data but I just can't perform operations on the data(Except for the first row of course).

Thanks.

[jefftee]

What @anda_skoa is pointing out is that you get the number of rows like this:

int rows = model->rowCount();

int rows = model->rowCount();

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Yet the rest of your code gets the model from the view, i.e. ui->tableView->model(), so the question is do the following return the same values and if so, that is that value?

int rows1 = model->rowCount();
int rows2 = ui->tableView->model()->rowCount();

int rows1 = model->rowCount();
int rows2 = ui->tableView->model()->rowCount();

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[Jarrod]

Thanks just tested.
I loaded a file with 2 rows and both rows1 and rows2 give an answer of 2. It loads all the rows its just only performs operations on the first one and not all of them.

Thanks

[jefftee]

So if rows = 2 then your loop *must* execute twice for i = 0 and i = 1 cases. Are you saying it executes only once for the i = 0 case?