Qtreewidget hide the expand collapsed triangle icon before you remove or change the item item

If you do not want to expand the collapse icon (triangle icon), you can use the following code

{

Hide the icon before the root node item (expand the collapse icon)
Ui.treewidget->setrootisdecorated (FALSE);
If you just hide the expand collapse icon for the root point and the child node remains, you only need the above statement
Ui.treewidget->setstylesheet ("qtreeview::branch:has-children:!has-siblings:closed,\
Qtreeview::branch:closed:has-children:has-siblings{border-image:none; image:none;} \
Qtreeview::branch:open:has-children:!has-siblings,\

Qtreeview::branch:open:has-children:has-siblings{border-image:none; image:none;} ");

}

If you want to change the expand collapse icon (triangle icon) to your own icon, you can use the following code

{
Ui.treewidget->setstylesheet ("qtreeview::branch:has-children:!has-siblings:closed,\
Qtreeview::branch:closed:has-children:has-siblings{border-image:none; Image:url (:/QtXmlTest/Resources/image/ Plus.png);} \
Qtreeview::branch:open:has-children:!has-siblings,\
Qtreeview::branch:open:has-children:has-siblings{border-image:none; Image:url (:/QtXmlTest/Resources/image/ minus.png);} ");

}

Change Plus.png and minus.png to their own pictures.

A complete Qtreewidget example, download address: http://download.csdn.net/download/jxbinwd/10044343