diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index 2f81131449..9b82fe23c7 100644
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -986,7 +986,7 @@ public:
     void AppendItem( const wxVector<wxVariant> &values, wxClientData *data = NULL );
     void PrependItem( const wxVector<wxVariant> &values, wxClientData *data = NULL );
     void InsertItem(  unsigned int row, const wxVector<wxVariant> &values, wxClientData *data = NULL );
-    void DeleteItem( unsigned pos );
+    void DeleteItem( unsigned int pos );
     void DeleteAllItems();
 
     // override base virtuals
diff --git a/src/common/datavcmn.cpp b/src/common/datavcmn.cpp
index 74021deb98..17f3e911d3 100644
--- a/src/common/datavcmn.cpp
+++ b/src/common/datavcmn.cpp
@@ -1415,7 +1415,8 @@ void wxDataViewListStore::PrependItem( const wxVector<wxVariant> &values, wxClie
     RowPrepended();
 }
 
-void wxDataViewListStore::InsertItem(  unsigned int row, const wxVector<wxVariant> &values, wxClientData *data )
+void wxDataViewListStore::InsertItem(  unsigned int row, const wxVector<wxVariant> &values, 
+                                       wxClientData *data )
 {
     wxDataViewListStoreLine *line = new wxDataViewListStoreLine( data );
     line->m_values = values;
@@ -1424,7 +1425,7 @@ void wxDataViewListStore::InsertItem(  unsigned int row, const wxVector<wxVarian
     RowInserted( row );
 }
 
-void wxDataViewListStore::DeleteItem( unsigned row )
+void wxDataViewListStore::DeleteItem( unsigned int row )
 {
     wxVector<wxDataViewListStoreLine*>::iterator it = m_data.begin() + row;
     m_data.erase( it );
@@ -1441,6 +1442,8 @@ void wxDataViewListStore::DeleteAllItems()
         delete line;
     }
 
+    m_data.clear();
+
     Reset( 0 );
 }