source: trunk/workshop-routing-foss4g/web/GeoExt/docs/_sources/lib/GeoExt/widgets/tree/LayerParamNode.txt @ 76

.. currentmodule:: GeoExt.tree

:class:`GeoExt.tree.LayerParamNode`
================================================================================


.. cssclass:: meta


Extends
    * `Ext.tree.TreeNode <http://dev.sencha.com/deploy/dev/docs/?class=Ext.tree.TreeNode>`_
    






.. class:: LayerParamNode

A subclass of ``Ext.tree.TreeNode`` that represents a value of a list of
values provided as one of an ``OpenLayers.Layer.HTTPRequest``'s params.
The default iconCls for this node's icon is "gx-tree-layerparam-icon".

To use this node type in a ``TreePanel`` config, set ``nodeType`` to
"gx_layerparam".


    


Config Options
--------------

Configuration properties in addition to
those listed for `Ext.tree.TreeNode <http://dev.sencha.com/deploy/dev/docs/?class=Ext.tree.TreeNode>`_.


.. describe:: delimiter

    ``String`` Delimiter of the ``param``'s value's items. Default is
    ``,`` (comma). If the ``param``'s value is an array, this property
    has no effect.

.. describe:: item

    ``String`` The param's value's item that this node represents.

.. describe:: layer

    ``OpenLayers.Layer.HTTPRequest|String`` The layer that this node
    represents a subnode of. If provided as string, the string has to
    match the title of one of the records in the ``layerStore``.

.. describe:: layerStore

    :class:`GeoExt.data.LayerStore` Only used if layer is provided as
    string. The store where we can find the layer. If not provided, the
    store of a map panel found by ``GeoExt.MapPanel::guess`` will be used.

.. describe:: param

    ``String`` Key for a param (key-value pair in the params object of the
    layer) that this node represents an item of. The value can either be an
    ``Array`` or a ``String``, delimited by the character (or string)
    provided as ``delimiter`` config option.