diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index be3ce240a8..87bfcf12e2 100644
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -81,10 +81,11 @@ extern WXDLLIMPEXP_DATA_ADV(const char) wxDataViewCtrlNameStr[];
 class WXDLLIMPEXP_ADV wxDataViewItem
 {
 public:
-    wxDataViewItem( void* id = NULL )
-        { m_id = id; }
-    wxDataViewItem( const wxDataViewItem &item )
-        { m_id = item.m_id; }
+    wxDataViewItem() : m_id(NULL) {}
+    wxDataViewItem(const wxDataViewItem &item) : m_id(item.m_id) {}
+
+    wxEXPLICIT wxDataViewItem(void* id) : m_id(id) {}
+
     bool IsOk() const                  { return m_id != NULL; }
     void* GetID() const                { return m_id; }
     operator const void* () const      { return m_id; }
diff --git a/interface/wx/dataview.h b/interface/wx/dataview.h
index f4d4fcd8f1..9c24be7d76 100644
--- a/interface/wx/dataview.h
+++ b/interface/wx/dataview.h
@@ -614,8 +614,9 @@ public:
     /**
         Constructor.
     */
-    wxDataViewItem(void* id = NULL);
+    wxDataViewItem();
     wxDataViewItem(const wxDataViewItem& item);
+    explicit wxDataViewItem(void* id);
     //@}
 
     /**
diff --git a/src/common/datavcmn.cpp b/src/common/datavcmn.cpp
index 611d3b1d5a..c5540283fc 100644
--- a/src/common/datavcmn.cpp
+++ b/src/common/datavcmn.cpp
@@ -387,7 +387,7 @@ wxDataViewIndexListModel::wxDataViewIndexListModel( unsigned int initial_size )
     // build initial index
     unsigned int i;
     for (i = 1; i < initial_size+1; i++)
-            m_hash.Add( wxUIntToPtr(i) );
+            m_hash.Add( wxDataViewItem(wxUIntToPtr(i)) );
     m_nextFreeID = initial_size + 1;
 }
 
@@ -403,7 +403,7 @@ void wxDataViewIndexListModel::Reset( unsigned int new_size )
     // build initial index
     unsigned int i;
     for (i = 1; i < new_size+1; i++)
-            m_hash.Add( wxUIntToPtr(i) );
+            m_hash.Add( wxDataViewItem(wxUIntToPtr(i)) );
 
     m_nextFreeID = new_size + 1;
 
@@ -417,8 +417,8 @@ void wxDataViewIndexListModel::RowPrepended()
     unsigned int id = m_nextFreeID;
     m_nextFreeID++;
 
-    m_hash.Insert( wxUIntToPtr(id), 0 );
     wxDataViewItem item( wxUIntToPtr(id) );
+    m_hash.Insert( item, 0 );
     ItemAdded( wxDataViewItem(0), item );
 
 }
@@ -430,8 +430,8 @@ void wxDataViewIndexListModel::RowInserted( unsigned int before )
     unsigned int id = m_nextFreeID;
     m_nextFreeID++;
 
-    m_hash.Insert( wxUIntToPtr(id), before );
     wxDataViewItem item( wxUIntToPtr(id) );
+    m_hash.Insert( item, before );
     ItemAdded( wxDataViewItem(0), item );
 }
 
@@ -440,8 +440,8 @@ void wxDataViewIndexListModel::RowAppended()
     unsigned int id = m_nextFreeID;
     m_nextFreeID++;
 
-    m_hash.Add( wxUIntToPtr(id) );
     wxDataViewItem item( wxUIntToPtr(id) );
+    m_hash.Add( item );
     ItemAdded( wxDataViewItem(0), item );
 }
 
@@ -490,7 +490,7 @@ unsigned int wxDataViewIndexListModel::GetRow( const wxDataViewItem &item ) cons
         return wxPtrToUInt(item.GetID())-1;
 
     // assert for not found
-    return (unsigned int) m_hash.Index( item.GetID() );
+    return (unsigned int) m_hash.Index( item );
 }
 
 wxDataViewItem wxDataViewIndexListModel::GetItem( unsigned int row ) const
@@ -2005,7 +2005,7 @@ wxDataViewItem wxDataViewTreeStore::GetNthChild( const wxDataViewItem& parent, u
 
     wxDataViewTreeStoreNodeList::compatibility_iterator node = parent_node->GetChildren().Item( pos );
     if (node)
-        return node->GetData();
+        return wxDataViewItem(node->GetData());
 
     return wxDataViewItem(0);
 }
@@ -2111,7 +2111,7 @@ void wxDataViewTreeStore::DeleteChildren( const wxDataViewItem& item )
 
 void wxDataViewTreeStore::DeleteAllItems()
 {
-    DeleteChildren(m_root);
+    DeleteChildren(wxDataViewItem(m_root));
 }
 
 void
diff --git a/src/generic/datavgen.cpp b/src/generic/datavgen.cpp
index 167c1149b8..aaaa107c89 100644
--- a/src/generic/datavgen.cpp
+++ b/src/generic/datavgen.cpp
@@ -406,7 +406,7 @@ int LINKAGEMODE wxGenericTreeModelNodeCmp( wxDataViewTreeNode ** node1,
 
 int LINKAGEMODE wxGenericTreeModelItemCmp( void ** id1, void ** id2)
 {
-    return g_model->Compare( *id1, *id2, g_column, g_asending );
+    return g_model->Compare( wxDataViewItem(*id1), wxDataViewItem(*id2), g_column, g_asending );
 }
 
 
@@ -2702,7 +2702,7 @@ public:
             if( node->GetNodes().GetCount() == 0)
             {
                 int index = static_cast<int>(row) - current - 1;
-                ret = node->GetChildren().Item( index );
+                ret = wxDataViewItem(node->GetChildren().Item( index ));
                 return DoJob::OK;
             }
             return DoJob::CONT;
diff --git a/src/gtk/dataview.cpp b/src/gtk/dataview.cpp
index e27c908000..ee2ea2b686 100644
--- a/src/gtk/dataview.cpp
+++ b/src/gtk/dataview.cpp
@@ -300,7 +300,7 @@ private:
 static
 int LINKAGEMODE wxGtkTreeModelChildCmp( void** id1, void** id2 )
 {
-    int ret = gs_internal->GetDataViewModel()->Compare( *id1, *id2,
+    int ret = gs_internal->GetDataViewModel()->Compare( wxDataViewItem(*id1), wxDataViewItem(*id2),
         gs_internal->GetSortColumn(), (gs_internal->GetSortOrder() == GTK_SORT_ASCENDING) );
 
     return ret;
@@ -3334,7 +3334,7 @@ int wxGtkTreeModelChildWithPosCmp( const void* data1, const void* data2, const v
 static
 int LINKAGEMODE wxGtkTreeModelChildPtrCmp( void*** data1, void*** data2 )
 {
-    return gs_internal->GetDataViewModel()->Compare( **data1, **data2,
+    return gs_internal->GetDataViewModel()->Compare( wxDataViewItem(**data1), wxDataViewItem(**data2),
         gs_internal->GetSortColumn(), (gs_internal->GetSortOrder() == GTK_SORT_ASCENDING) );
 }