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.. _wx.dataview.TreeListEvent:

==========================================================================================================================================
|phoenix_title|  **wx.dataview.TreeListEvent**
==========================================================================================================================================

Event generated by :ref:`wx.dataview.TreeListCtrl`.          

         



.. versionadded:: 2.9.3 
     







|

|class_hierarchy| Class Hierarchy
=================================

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   Inheritance diagram for class <strong>TreeListEvent</strong>:
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   <p class="graphviz">
   <center><img src="_static/images/inheritance/wx.dataview.TreeListEvent_inheritance.png" alt="Inheritance diagram of TreeListEvent" usemap="#dummy" class="inheritance"/></center>
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|method_summary| Methods Summary
================================

================================================================================ ================================================================================
:meth:`~wx.dataview.TreeListEvent.__init__`                                      
:meth:`~wx.dataview.TreeListEvent.GetColumn`                                     Return the column affected by the event.
:meth:`~wx.dataview.TreeListEvent.GetItem`                                       Return the item affected by the event.
:meth:`~wx.dataview.TreeListEvent.GetOldCheckedState`                            Return the previous state of the item checkbox.
================================================================================ ================================================================================


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|property_summary| Properties Summary
=====================================

================================================================================ ================================================================================
:attr:`~wx.dataview.TreeListEvent.Column`                                        See :meth:`~wx.dataview.TreeListEvent.GetColumn`
:attr:`~wx.dataview.TreeListEvent.Item`                                          See :meth:`~wx.dataview.TreeListEvent.GetItem`
:attr:`~wx.dataview.TreeListEvent.OldCheckedState`                               See :meth:`~wx.dataview.TreeListEvent.GetOldCheckedState`
================================================================================ ================================================================================


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|api| Class API
===============


.. class:: wx.dataview.TreeListEvent(NotifyEvent)

   **Possible constructors**::

       TreeListEvent()
       
   
   Event generated by TreeListCtrl.



   .. method:: __init__(self)






   .. method:: GetColumn(self)

      Return the column affected by the event.                  

      This is currently only used with  ``wxEVT_TREELIST_COLUMN_SORTED``   event.                    





   .. method:: GetItem(self)

      Return the item affected by the event.                  

      This is the item being selected, expanded, checked or activated (depending on the event type).                  

      :rtype: :ref:`wx.dataview.TreeListItem`








   .. method:: GetOldCheckedState(self)

      Return the previous state of the item checkbox.                  

      This method can be used with  ``wxEVT_TREELIST_ITEM_CHECKED``   events only. 

      Notice that the new state of the item can be retrieved using :meth:`wx.dataview.TreeListCtrl.GetCheckedState` .                  

      :rtype: :ref:`wx.CheckBoxState`








   .. attribute:: Column

      See :meth:`~wx.dataview.TreeListEvent.GetColumn`


   .. attribute:: Item

      See :meth:`~wx.dataview.TreeListEvent.GetItem`


   .. attribute:: OldCheckedState

      See :meth:`~wx.dataview.TreeListEvent.GetOldCheckedState`

