How to highlight a row in an NSTableView

Question

I have an NSTableView in my application. now they say 8 columns on 48 rows.

I have a function that runs a specific specific column to see that the value or value in each cell is greater than a specific value. If so, I would like the application to highlight the line.

I read some reading, and I'm still looking for function calls or a process that will allow me to extract cells / rows / or a rectangle and let me change the color.

What are the functions and steps in changing the color of cells?

Answer 1

- [NSTableView selectRowIndexes:byExendingSelection:]

Source

Answer 2

To change the cell color, you can try this method

-(void)tableView:(NSTableView *)tableView willDisplayCell:(id)cell forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row
{
   [cell setDrawsBackground:YES];
  if(row==0)
       [cell setBackgroundColor:[NSColor color];
   else if(row==1||row==2)
        [cell setBackgroundColor:[NSColor color];
    else
        [cell setBackgroundColor:[NSColor color];
}

.

Answer 3

tableView

– tableView:dataCellForTableColumn:row:

. dataCell .

Answer 4

If you are extracting data as rows, you can use: -

NSAttributedString

to change the color of text and background.

Answer 5

-(void)tableView:(NSTableView *)tableView willDisplayCell:(id)cell forTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row

... gives you a pre-created cell (usually an NSTextFieldCell) that you can then colorize. No need to return it - Apple has already done this and is going to use it, just change the object as you like. It works great.