setSortIndicator

setSortIndicator is a method in Qt, a C++ application framework. It is used to set the sort indicator in a table view or a list view. The sort indicator is a visual cue that indicates the sorting order of the data in the view.

The setSortIndicator method takes two parameters:

1. Column: This parameter specifies the column index for which the sorting indicator is to be set.

2. Order: This parameter specifies the sorting order, i.e., ascending or descending.

For example, the following code sets the sort indicator for column 1 in a table view in descending order:

QTableView* tableView = new QTableView();
tableView->setSortingEnabled(true);
tableView->sortByColumn(1, Qt::DescendingOrder);
tableView->horizontalHeader()->setSortIndicator(1, Qt::DescendingOrder);

Here, the setSortingEnabled method enables sorting for the table view. The sortByColumn method sorts the data in column 1 in descending order. The setSortIndicator method sets the sort indicator for column 1 in descending order.

Note that the horizontalHeader method returns the header of the table view, which contains the sort indicator.