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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I am trying to develop a button to uncheck all the layers in my Ext.tree.TreePanel but without success so far.<o:p></o:p></p><p class=MsoNormal>Does anyone have ideas?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m using the following code that I’ve found:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>var</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'> unckeckAll = </span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>new</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'> Ext.Button({</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> text: </span><span style='font-size:10.0pt;font-family:Consolas;color:#2A00FF'>"Uncheck All"</span><span style='font-size:10.0pt;font-family:Consolas;color:black'>,</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> listeners:{</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> reset: </span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>function</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'> (){</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> startNode = <span style='background:silver;mso-highlight:silver'>LayerTree</span>.root;</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> </span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>var</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'> f = </span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>function</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'> () {</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> </span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>if</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'> (<span style='background:silver;mso-highlight:silver'>LayerTree</span>.attributes.checked) {</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> <span style='background:silver;mso-highlight:silver'>LayerTree</span>.attributes.checked = </span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>false</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'>;</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> <span style='background:silver;mso-highlight:silver'>LayerTree</span>.getUI().toggleCheck(</span><b><span style='font-size:10.0pt;font-family:Consolas;color:#7F0055'>false</span></b><span style='font-size:10.0pt;font-family:Consolas;color:black'>);</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> }</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> };</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> startNode.cascade(f);</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> }</span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;font-family:Consolas;color:black'> } </span><span style='font-size:10.0pt;font-family:Consolas'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Consolas;color:black'> });<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:Consolas;color:black'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'>Thanks,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;color:black'>Jacinto</span><o:p></o:p></p></div></body></html>