// combogrid设置默认选中哪一行
$(\'#cc\').combogrid(\'grid\').datagrid(\'selectRecord\',idValue);
其中idValue对应combogrid定义的idValue属性

// combogrid获取pagination对象
$(\'#cc\').combogrid(\'grid\').datagrid(\'getPager\').pagination({
               displayMsg:\'\'
          });

// combogrid获取当前页码
$(\'#cc\').combogrid(\'grid\').datagrid(\'options\').pageNumber;

// combobox默认选中第一个
var data = $(\"#cc\").combobox(\'getData\');
 $(\"#cc\").combobox(\"setValue\",data[0].id);

// combotree默认第一个
var data = $(\"#cc\").combotree(\"tree\").tree(\'getChildren\');
 $(\"#cc\").combotree(\"setValue\",data[1].id);