How can I get the row and column of an edited cell from NSTableView using Xamarin.Mac?

I am building a Xamarin.Mac application, and one of the ViewControllers contains an NSTableView. I have successfully been able to populate the table view, but I would like the user to be able to edit some of the cell contents.

Functionally, I am also able to get the cell editable. However, I cannot extract the row and the column for the edited cell. Is this possible?

I have the NSTableViewDelegate code:

public override NSView GetViewForItem(NSTableView tableView, NSTableColumn tableColumn, nint row)
{
    // Get the data
    var Data = this._dataSource.DataRecords[(int)row];

    NSTextField view = (NSTextField)tableView.MakeView(CellIdentifier, this);
    if (view == null)
    {
        view = new NSTextField();
        view.Identifier = CellIdentifier;
        view.BackgroundColor = NSColor.Clear;
        view.Bordered = false;
        view.Selectable = true;
        view.Editable = true;
        view.EditingEnded += this.EditingEnded;
    }

    // Setup view based on the column selected
    if(tableColumn.Title.Equals(string.Empty)) {
        view.IntValue = Convert.ToInt16(row);
    }
    else {
        view.StringValue = Data.Get(tableColumn.Title).ToString();
    }

    return view;
}

void EditingEnded(object sender, EventArgs e)
{
    // I can get a reference to the correct, edited, NSTextField 
    //   with the following line.
    var textField = ((NSNotification)sender).Object as NSTextField;

    // However, HERE, I would like to know what row and column was edited so 
    //  that I can update my source data with the user-made change.
}

Does anyone know how to use this logic to get the edited cell's position in the NSTableView?

I am using Xamarin.Mac, but I assume the same logic/question would apply if I was using Swift or Objective-C for my app. I'd happily take an answer in either of those languages as well.

Solution

You can get the column and row for any NSView in your NSTableView by using the NSTableView's:

RowForView
ColumnForView

Example:

var textField = ((NSNotification)sender).Object as NSTextField;
var row = someTableView.RowForView(textField);
var column = someTableView.ColumnForView(textField);