diff --git a/kfile/kdiroperator.cpp b/kfile/kdiroperator.cpp
index 507c0874..ddf2b6bb 100644
--- a/kfile/kdiroperator.cpp
+++ b/kfile/kdiroperator.cpp
@@ -206,8 +206,6 @@ public:
     // private slots
     void _k_slotDetailedView();
     void _k_slotSimpleView();
-    void _k_slotTreeView();
-    void _k_slotDetailedTreeView();
     void _k_slotToggleHidden(bool);
     void _k_togglePreview(bool);
     void _k_toggleInlinePreviews(bool);
@@ -577,7 +575,7 @@ KActionCollection * KDirOperator::actionCollection() const
 }
 
 KFile::FileView KDirOperator::Private::allViews() {
-    return static_cast<KFile::FileView>(KFile::Simple | KFile::Detail | KFile::Tree | KFile::DetailTree);
+    return static_cast<KFile::FileView>(KFile::Simple | KFile::Detail);
 }
 
 void KDirOperator::Private::_k_slotDetailedView()
@@ -592,18 +590,6 @@ void KDirOperator::Private::_k_slotSimpleView()
     parent->setView(view);
 }
 
-void KDirOperator::Private::_k_slotTreeView()
-{
-    KFile::FileView view = static_cast<KFile::FileView>((viewKind & ~allViews()) | KFile::Tree);
-    parent->setView(view);
-}
-
-void KDirOperator::Private::_k_slotDetailedTreeView()
-{
-    KFile::FileView view = static_cast<KFile::FileView>((viewKind & ~allViews()) | KFile::DetailTree);
-    parent->setView(view);
-}
-
 void KDirOperator::Private::_k_slotToggleHidden(bool show)
 {
     dirLister->setShowingDotFiles(show);
@@ -1359,7 +1345,7 @@ bool KDirOperator::Private::checkPreviewInternal() const
 QAbstractItemView* KDirOperator::createView(QWidget* parent, KFile::FileView viewKind)
 {
     QAbstractItemView *itemView = 0;
-    if (KFile::isDetailView(viewKind) || KFile::isTreeView(viewKind) || KFile::isDetailTreeView(viewKind)) {
+    if (KFile::isDetailView(viewKind)) {
         KDirOperatorDetailView *detailView = new KDirOperatorDetailView(parent);
         detailView->setViewMode(viewKind);
         itemView = detailView;
@@ -1385,10 +1371,6 @@ void KDirOperator::setView(KFile::FileView viewKind)
     if (viewKind == KFile::Default) {
         if (KFile::isDetailView((KFile::FileView)d->defaultView)) {
             viewKind = KFile::Detail;
-        } else if (KFile::isTreeView((KFile::FileView)d->defaultView)) {
-            viewKind = KFile::Tree;
-        } else if (KFile::isDetailTreeView((KFile::FileView)d->defaultView)) {
-            viewKind = KFile::DetailTree;
         } else {
             viewKind = KFile::Simple;
         }
@@ -1836,21 +1818,9 @@ void KDirOperator::setupActions()
     detailedAction->setIcon(KIcon(QLatin1String("view-list-details")));
     connect(detailedAction, SIGNAL(triggered()), SLOT(_k_slotDetailedView()));
 
-    KToggleAction *treeAction = new KToggleAction(i18n("Tree View"), this);
-    d->actionCollection->addAction("tree view", treeAction);
-    treeAction->setIcon(KIcon(QLatin1String("view-list-tree")));
-    connect(treeAction, SIGNAL(triggered()), SLOT(_k_slotTreeView()));
-
-    KToggleAction *detailedTreeAction = new KToggleAction(i18n("Detailed Tree View"), this);
-    d->actionCollection->addAction("detailed tree view", detailedTreeAction);
-    detailedTreeAction->setIcon(KIcon(QLatin1String("view-list-tree")));
-    connect(detailedTreeAction, SIGNAL(triggered()), SLOT(_k_slotDetailedTreeView()));
-
     QActionGroup* viewGroup = new QActionGroup(this);
     shortAction->setActionGroup(viewGroup);
     detailedAction->setActionGroup(viewGroup);
-    treeAction->setActionGroup(viewGroup);
-    detailedTreeAction->setActionGroup(viewGroup);
 
     KToggleAction *showHiddenAction = new KToggleAction(i18n("Show Hidden Files"), this);
     d->actionCollection->addAction("show hidden", showHiddenAction);
@@ -1882,9 +1852,6 @@ void KDirOperator::setupActions()
     d->actionCollection->addAction("view menu", viewMenu);
     viewMenu->addAction(shortAction);
     viewMenu->addAction(detailedAction);
-    // Comment following lines to hide the extra two modes
-    viewMenu->addAction(treeAction);
-    viewMenu->addAction(detailedTreeAction);
     // TODO: QAbstractItemView does not offer an action collection. Provide
     // an interface to add a custom action collection.
 
@@ -1982,8 +1949,6 @@ void KDirOperator::updateViewActions()
 
     d->actionCollection->action("short view")->setChecked(KFile::isSimpleView(fv));
     d->actionCollection->action("detailed view")->setChecked(KFile::isDetailView(fv));
-    d->actionCollection->action("tree view")->setChecked(KFile::isTreeView(fv));
-    d->actionCollection->action("detailed tree view")->setChecked(KFile::isDetailTreeView(fv));
 }
 
 void KDirOperator::readConfig(const KConfigGroup& configGroup)
@@ -1992,10 +1957,6 @@ void KDirOperator::readConfig(const KConfigGroup& configGroup)
     QString viewStyle = configGroup.readEntry("View Style", "Simple");
     if (viewStyle == QLatin1String("Detail")) {
         d->defaultView |= KFile::Detail;
-    } else if (viewStyle == QLatin1String("Tree")) {
-        d->defaultView |= KFile::Tree;
-    } else if (viewStyle == QLatin1String("DetailTree")) {
-        d->defaultView |= KFile::DetailTree;
     } else {
         d->defaultView |= KFile::Simple;
     }
@@ -2093,10 +2054,6 @@ void KDirOperator::writeConfig(KConfigGroup& configGroup)
         style = QLatin1String("Detail");
     else if (KFile::isSimpleView(fv))
         style = QLatin1String("Simple");
-    else if (KFile::isTreeView(fv))
-        style = QLatin1String("Tree");
-    else if (KFile::isDetailTreeView(fv))
-        style = QLatin1String("DetailTree");
     configGroup.writeEntry(QLatin1String("View Style"), style);
 
     if (d->inlinePreviewState == Private::NotForced) {
diff --git a/kfile/kdiroperator.h b/kfile/kdiroperator.h
index 28193fb1..a1d110f8 100644
--- a/kfile/kdiroperator.h
+++ b/kfile/kdiroperator.h
@@ -880,8 +880,6 @@ private:
 
     Q_PRIVATE_SLOT( d, void _k_slotDetailedView() )
     Q_PRIVATE_SLOT( d, void _k_slotSimpleView() )
-    Q_PRIVATE_SLOT( d, void _k_slotTreeView() )
-    Q_PRIVATE_SLOT( d, void _k_slotDetailedTreeView() )
     Q_PRIVATE_SLOT( d, void _k_slotToggleHidden(bool) )
     Q_PRIVATE_SLOT( d, void _k_togglePreview(bool) )
     Q_PRIVATE_SLOT( d, void _k_toggleInlinePreviews(bool) )
diff --git a/kfile/kdiroperatordetailview.cpp b/kfile/kdiroperatordetailview.cpp
index e71d853b..6f266169 100644
--- a/kfile/kdiroperatordetailview.cpp
+++ b/kfile/kdiroperatordetailview.cpp
@@ -36,6 +36,7 @@ KDirOperatorDetailView::KDirOperatorDetailView(QWidget *parent) :
     m_resizeColumns(true), m_hideDetailColumns(false)
 {
     setRootIsDecorated(false);
+    setItemsExpandable(false);
     setSortingEnabled(true);
     setUniformRowHeights(true);
     setDragDropMode(QListView::DragOnly);
@@ -65,30 +66,12 @@ void KDirOperatorDetailView::setModel(QAbstractItemModel *model)
 
 bool KDirOperatorDetailView::setViewMode(KFile::FileView viewMode)
 {
-    bool tree = false;
-    
     if (KFile::isDetailView(viewMode)) {
         m_hideDetailColumns = false;
-    } else if (KFile::isTreeView(viewMode)) {
-        m_hideDetailColumns = true;
-        tree = true;
-    } else if (KFile::isDetailTreeView(viewMode)) {
-        m_hideDetailColumns = false;
-        tree = true;
     } else {
         return false;
     }
-    
-    setRootIsDecorated(tree);
-    setItemsExpandable(tree);
-    // This allows to have a horizontal scrollbar in case this view is used as
-    // a plain treeview instead of cutting off filenames, especially useful when
-    // using KDirOperator in horizontally limited parts of an app.
-    if( tree && m_hideDetailColumns ) {
-        header()->setResizeMode( QHeaderView::ResizeToContents );
-        header()->setStretchLastSection( false );
-    }
-    
+
     return true;
 }
 
diff --git a/kfile/kdiroperatordetailview_p.h b/kfile/kdiroperatordetailview_p.h
index ea2e52ac..4069e518 100644
--- a/kfile/kdiroperatordetailview_p.h
+++ b/kfile/kdiroperatordetailview_p.h
@@ -39,7 +39,7 @@ public:
     virtual void setModel(QAbstractItemModel *model);
 
     /**
-    * Displays either Detail, Tree or DetailTree modes.
+    * Displays Detail mode.
     */
     virtual bool setViewMode(KFile::FileView viewMode);
 
diff --git a/kfile/tests/kdiroperatortest.cpp b/kfile/tests/kdiroperatortest.cpp
index 8d0a1a63..9bb35bea 100644
--- a/kfile/tests/kdiroperatortest.cpp
+++ b/kfile/tests/kdiroperatortest.cpp
@@ -52,8 +52,8 @@ private Q_SLOTS:
     {
         // Test: Make sure readConfig() and then setView() restores
         // the correct kind of view.
-        KDirOperator *dirOp = new KDirOperator;
-        dirOp->setView(KFile::DetailTree);
+        KDirOperator *dirOp = new KDirOperator();
+        dirOp->setView(KFile::Detail);
         dirOp->setShowHiddenFiles(true);
         KConfigGroup cg(KGlobal::config(), "diroperator");
         dirOp->writeConfig(cg);
@@ -83,7 +83,7 @@ private Q_SLOTS:
         const KUrl kFileDirUrl(KUrl(KDESRCDIR).upUrl());
 
         KDirOperator dirOp(kFileDirUrl);
-        dirOp.setView(KFile::DetailTree);
+        dirOp.setView(KFile::Detail);
         QTest::qWait(3000);
         QVERIFY(dirOp.dirLister()->isFinished());
         dirOp.setCurrentItem("file:///");
diff --git a/kio/kfile/kfile.cpp b/kio/kfile/kfile.cpp
index 623f59d0..369f705d 100644
--- a/kio/kfile/kfile.cpp
+++ b/kio/kfile/kfile.cpp
@@ -80,14 +80,4 @@ bool KFile::isPreviewInfo( const FileView& view )
     return (view & PreviewInfo) == PreviewInfo;
 }
 
-bool KFile::isTreeView( const FileView& view )
-{
-    return (view & Tree) == Tree;
-}
-
-bool KFile::isDetailTreeView( const FileView& view )
-{
-    return (view & DetailTree) == DetailTree;
-}
-
 #include "moc_kfile.cpp"
diff --git a/kio/kfile/kfile.h b/kio/kfile/kfile.h
index b7ace903..f7ca942a 100644
--- a/kio/kfile/kfile.h
+++ b/kio/kfile/kfile.h
@@ -58,8 +58,6 @@ public:
         SeparateDirs    = 4,
         PreviewContents = 8,
         PreviewInfo     = 16,
-        Tree            = 32,
-        DetailTree      = 64,
         FileViewMax     = 65536
     };
 
@@ -103,10 +101,6 @@ public:
 
     static bool isPreviewInfo( const FileView& view );
 
-    static bool isTreeView( const FileView& view );
-
-    static bool isDetailTreeView( const FileView& view );
-
 private:
     KFile(); // forbidden
 };
diff --git a/kio/kfile/kfiledialog.h b/kio/kfile/kfiledialog.h
index fc7d7763..ba7064f5 100644
--- a/kio/kfile/kfiledialog.h
+++ b/kio/kfile/kfiledialog.h
@@ -687,7 +687,6 @@ public:
      */
     static void setStartDir( const KUrl& directory );
 
-
 Q_SIGNALS:
     /**
       * Emitted when the user selects a file. It is only emitted in single-