Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-38151

Quick Combobox crash in listview if located outside the view

    XMLWordPrintable

    Details

    • Commits:
      qtdeclarative: cb7e8dabf6e5b323bd3f2511127f63bee732fd99

      Description

      Crash happens when combobox model contains more than one item and it's located outside the listview. Example below explains the issue.

      crash: ASSERT failure in QVector<T>::insert: "index out of range"

      Bug is fixed to Qt 5.3.0 beta. Assumed it's vanished because of new QML compiler.

      import QtQuick 2.2
      import QtQuick.Layouts 1.1
      import QtQuick.Controls 1.1
      
      ApplicationWindow {
          title: qsTr("Hello World")
          width: 200
          height: 59 // CRASH if height < combobox model count * combobox height
      //    height: 60 // NO CRASH
      
          ListView {
              anchors.fill: parent
              model: ["aa","bb","cc","dd"]
              delegate: ComboBox {
                  height: 20
                  model: ["AA","BB"] // CRASH if window height < 60
              //    model: ["AA"] // no CRASH at all
              }
          }
      }
      

      Workaround is to initialize combobox with empty model and add items after first paint.

        Attachments

        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

          Activity

            People

            Assignee:
            Unassigned Unassigned
            Reporter:
            qtcomsupport Qt Support
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

              Dates

              Created:
              Updated:
              Resolved:

                Gerrit Reviews

                There are no open Gerrit changes