Get selected rows of DataViewListCtrl

wxPython Users
#1

How to get selected rows of a DataViewListCtrl with style DV_MULTIPLE?

DataViewListCtrl.GetSelectedRow() only returns a single selected row.

DataViewCtrl.GetSelections() returns multiple rows, but of type DataViewItem, and the documentation seems to have no mentioning of how such objects should be used.

#2

It’s probably too late for @champignoom, but I was looking at this issue for one of my own projects today.

The answer is to pass each DataViewItem to the DataViewListCtrl's ItemToRow() method, as shown in the example below:

import wx
import wx.dataview as dv

DATA = (
    (0, 100),
    (1, 127),
    (2, 116),
    (3, 80),
    (4, 108),
    (5, 77),
    (6, 90),
    (7, 22),
)


class TestFrame(wx.Frame):
    def __init__(self, parent):
        wx.Frame.__init__(self, parent)
        self.SetSize((150, 300))
        self.dvlc = dv.DataViewListCtrl(self, style=dv.DV_MULTIPLE|dv.DV_HORIZ_RULES|dv.DV_VERT_RULES)
        self.dvlc.AppendTextColumn('Step', width=40)
        self.dvlc.AppendTextColumn('Value')
        self.Sizer = wx.BoxSizer(wx.VERTICAL)
        self.Sizer.Add(self.dvlc, 1, wx.EXPAND)
        b = wx.Button(self, -1, "Get Selected Rows")
        self.Sizer.Add(b, 0, wx.TOP, 8)

        for d in DATA:
            self.dvlc.AppendItem([str(i) for i in d])

        self.Bind(wx.EVT_BUTTON, self.OnGetSelectedRows, b)

    def OnGetSelectedRows(self, _event):
        print([self.dvlc.ItemToRow(i) for i in self.dvlc.GetSelections()])


app = wx.App()
frame = TestFrame(None)
frame.Show()
app.MainLoop()

Tested using Python 3.10.6 + wxPython 4.2.0 gtk3 (phoenix) wxWidgets 3.2.0 on Linux Mint 21.1