Treegrid and onBeforeLoad

[mazvv]

I have a problem with treegrid event onBeforeLoad:

Code:

	<table class="easyui-treegrid" border="false" fit="true"
			checkOnSelect="false" selectOnCheck="false"
			data-options="
			onBeforeLoad:function(row, param){
					// param.q = $(this).closest('.container').find('.toolbar .search-tool input.search').val();
					param.rid = 1;
					return true;
			},				
			onDblClickRow:function(rowIndex, rowData){
					$(this).closest('.container').attr('unselectable','on').css('UserSelect','none').css('MozUserSelect','none');
					$(this).closest('.container').find('.toolbar a[href=\'${request.route_url('navigations.edit')}\']').click();
			}"
			url="${request.url}" singleSelect="true" rownumbers="true" idField="rid" treeField="name" toolbar=".toolbar:last">
	    <thead>  
	        <tr>  
	        	<th field="_rid" width="40" checkbox="true" 
	        		data-options="formatter: function(value,row,index){return row.rid;}"></th>
	        	<th field="rid" width="60" sortable="true">ID</th>
	        	<th field="name" width="160" sortable="true">${_(u'name')}</th>
	        </tr>  
	    </thead>
	</table>

I'm getting error: Uncaught TypeError: Cannot set property 'rid' of undefined
what i'm doing wrong?

[stworthy]

Please try to use the code below:

Code:

onBeforeLoad:function(row, param){
	if (!row){
		param.rid = 1;
	}
	return true;
}