<![CDATA[how to set different background colors for rows in qtreeview]]>Tried to do it as follows:
model()->setData( index, QVariant( QColor ), Qt::BackgroundRole );
No success. Any recommendation?

]]>https://forum.qt.io/topic/127050/how-to-set-different-background-colors-for-rows-in-qtreeviewRSS for NodeWed, 16 Sep 2026 10:32:39 GMTThu, 27 May 2021 13:36:52 GMT60<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 17:57:06 GMT]]>@VRonin Excellent! Thanks.

]]>https://forum.qt.io/post/661923https://forum.qt.io/post/661923Thu, 27 May 2021 17:57:06 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 17:45:06 GMT]]>@JoeCFD said in how to set different background colors for rows in qtreeview:

QFileSystemModel

This model only handles Qt::EditRole.

You can use RoleMaskProxyModel from this library to support other roles. See this example

]]>https://forum.qt.io/post/661918https://forum.qt.io/post/661918Thu, 27 May 2021 17:45:06 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 16:58:57 GMT]]>@Christian-Ehrlicher That is how it works. If qtreewidget is used, it has setData. But qtreeview does not have setData and its properties are manipulated with model.

]]>https://forum.qt.io/post/661910https://forum.qt.io/post/661910Thu, 27 May 2021 16:58:57 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 16:54:59 GMT]]>I use alternating color feature which solves my problem while I need only two colors. But that setData does not work is weird.

]]>https://forum.qt.io/post/661908https://forum.qt.io/post/661908Thu, 27 May 2021 16:54:59 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 16:30:43 GMT]]>@JoeCFD said in how to set different background colors for rows in qtreeview:

QFileSystemModel of qt 5.15.2

So why should this model handle setData() with Qt::BackgroundRole? btw: setData() has a return value...

]]>https://forum.qt.io/post/661905https://forum.qt.io/post/661905Thu, 27 May 2021 16:30:43 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 16:20:06 GMT]]>@mrjj QFileSystemModel of qt 5.15.2

]]>https://forum.qt.io/post/661904https://forum.qt.io/post/661904Thu, 27 May 2021 16:20:06 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 15:20:14 GMT]]>Hi
But what model type is it?
If a custom model it will be handled by the data function when asked for the BackgroundRole.

]]>https://forum.qt.io/post/661896https://forum.qt.io/post/661896Thu, 27 May 2021 15:20:14 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 14:59:10 GMT]]>@n-2204 said in how to set different background colors for rows in qtreeview:

QBrush(QColor(240, 248, 255))

Thanks. I have similar code for table widget and it works. But this does not work for qtreeview somehow.

]]>https://forum.qt.io/post/661889https://forum.qt.io/post/661889Thu, 27 May 2021 14:59:10 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 14:20:14 GMT]]>check this is code to set same color in column in Qtableview ..might be helpful

QAbstractItemModel* table1 = ui.tableView_1->model();
for (int row = 0; row < table1->rowCount(); ++row) {
    for (int column : {0, 1, 2)
        table1->setData(table1->index(row, column), QBrush(QColor(240, 248, 255)), Qt::BackgroundRole);
]]>https://forum.qt.io/post/661883https://forum.qt.io/post/661883Thu, 27 May 2021 14:20:14 GMT<![CDATA[Reply to how to set different background colors for rows in qtreeview on Thu, 27 May 2021 13:57:51 GMT]]>https://www.qtcentre.org/threads/61716-Set-the-color-of-a-row-in-a-qtreeview
found one here. Kind of messy.

]]>https://forum.qt.io/post/661881https://forum.qt.io/post/661881Thu, 27 May 2021 13:57:51 GMT