MVC+ExtJs之验证信息无缝结合

1.服务器端代码:

        /// <summary>

        /// 自定义Ext Ajax请求结果

        /// </summary>

        /// <param name="success">是否成功</param>

        /// <param name="value">结果</param>

        /// <returns></returns>

        protected ActionResult ExtJson(bool success)

        {

            return ExtJson(success, 0, string.Empty);

        }



        /// <summary>

        /// 自定义Ext Ajax请求结果

        /// </summary>

        /// <param name="success">是否成功</param>

        /// <param name="value">结果</param>

        /// <returns></returns>

        protected ActionResult ExtJson(bool success, object value)

        {

            return ExtJson(success, 0, value);

        }



        /// <summary>

        /// 自定义Ext Ajax请求结果

        /// </summary>

        /// <param name="success">是否成功</param>

        /// <param name="value">结果</param>

        /// <returns></returns>

        protected ActionResult ExtJson(bool success, int code, object value)

        {

            return Json(new { success = success, code = code, value = value }, "text/html", System.Text.Encoding.UTF8, JsonRequestBehavior.AllowGet);

        }



        /// <summary>

        /// 返回服务器端Model验证错误

        /// </summary>

        /// <returns></returns>

        protected ActionResult ModelError()

        {

            List<object> errors = new List<object>();

            foreach (var key in ModelState.Keys)

            {

                var state = ModelState[key];

                foreach (var error in state.Errors)

                {

                    errors.Add(new { id = key, msg = error.ErrorMessage });

                }

            }



            if (errors.Count > 0)

            {

                return ExtJson(false, errors);

            }



            return ExtJson(false, "未知错误，请检查输入！");

        }

action调用示例:

if (!ModelState.IsValid)

{

        return ModelError();

}

　　

2.客户端代码

handler: function() {

    var form = theForm.getForm();

    if (form.isValid()) {

        form.submit({

            waitMsg: '正在提交...',

            success: function(form, action) {

                Ext.Msg.alert('成功', '保存成功!', function() {

                    win.hide();

                    store.loadPage();

                });

            },

            failure: function(form, action) {

                if (action.result) {

                    if (typeof(action.result.value) == 'string') Ext.Msg.alert('失败', action.result.value);

                    else if (action.result.value.constructor == Array) theForm.getForm().markInvalid(action.result.value);

                } else {

                    Ext.Msg.alert('失败', '未知错误');

                }

            }

        });

    }

}