ExtJs的Ext.Ajax.request实现waitMsg等待提示效果

一、  fp.form.submit 有waitMsg 属性来设置等待效果，如下。但是对于Ext.Ajax.request来说 waitMsg 并不起作用。                    fp.form.submit({                           url : ”,                           waitTitle : “[性别]修改”,                           waitMsg : ‘正在提交数据,请稍后… …’,                           success : function(form, action) {                                     Ext.MessageBox.alert(‘提示信息’,action.result.msg);                           },                           failure : function(form, action) {                                Ext.MessageBox.alert(‘提示信息’, “更新性别有误！”);                           }               }); 二、Ext.Ajax.request实现waitMsg等待提示效果          Ext.MessageBox.confirm(‘Message’, ‘请问您确定要修改性别吗？’, function(btn) {                 if (btn == ‘yes’){                     var myMask = new Ext.LoadMask(Ext.getBody(), {                          msg: ‘正在提交申请，请稍后！’                     });                      myMask.show();                     Ext.Ajax.request({                           url : ”,                           params : {                                sex : sex                                     },                           success : function(response,option) {                                                                                var res = Ext.decode(response.responseText);                                     if(res.success){                                          myMask.hide();                                          Ext.MessageBox.alert(‘提示信息’, res.msg);                                     }else{                                           myMask.hide();                                           Hs.util.Msg(‘提示信息’, res.msg);                                     }                                     },                           failure : function(form, action) {                                myMask.hide();                                Hs.util.Msg(‘提示信息’, response.msg);                           }                     });                }        });