<div>Hello ...<br></div>
<div>I´m able to add a radiobutton on sublayers that use nodetype=&quot;gx_layer&quot;...</div>
<div>Example:</div>
<div>                                    nodeType: &quot;gx_layer&quot;,                                 <br>                                    layer: &quot;layer1&quot;,<br>                                    isLeaf: false,                        <br>
                                    loader: {<br>                                        param: &quot;LAYERS&quot;,                                       <br>                                        baseAttrs: {<br>                                            uiProvider: Ext.extend(Ext.tree.TreeNodeUI, {<br>
                                                render: function(bulkRender) {                            <br>                                                    Ext.tree.TreeNodeUI.prototype.render.apply(this, arguments);                                                   <br>
                                                    var cb = this.checkbox;                           <br>                                                    Ext.DomHelper.insertAfter(cb, &#39; &lt;input type=&quot;radio&quot; class=&quot;gx-tree-radio&quot; name=&quot;radio&quot;&gt;&lt;/input&gt;&#39; );<br>
                                                },<br>                                                onClick: function(e) {<br>                                                    if(e.getTarget(&#39;.gx-tree-radio&#39;, 1)) {                                     <br>
                                                        alert(this.node.text);<br>                                                    }<br>                                                    else {<br>                                                        Ext.tree.TreeNodeUI.prototype.onClick.apply(this,arguments);<br>
                                                    }<br>                                                }<br>                                            })<br>                                        }</div>
<div> </div>
<div>But, and  how about nodeType: &quot;gx_layerparam&quot; ? How can I add a radio button to that node?</div>
<div> </div>
<div>                                nodeType: &quot;gx_layerparam&quot;,<br>                                layer: &quot;Layer1&quot;,<br>                                param: &quot;LAYERS&quot;,<br>                                item: &quot;Layer12&quot;,<br>
                                text: &quot;Test&quot;</div>
<div> </div>
<div>I tried to implement the loader, but it doest work... </div>
<div> </div>
<div>Pail<br><br> </div>