MVC下读取XML生成动态表单的比如-编程开发-知优网

本文是在MVC下动态表单怎么生成的这一问题引出的，作者将通过实例讲解的方式，讲述如何在MVC下读取XML生成动态表单。

咱们来看下面的比如：

接着前次的MVCMembership来讲

咱们首要增加一个目录XML。然后增加View:

1.checkXml.aspx 用来查看咱们输入的XML格局（运用XSD查看）

2.New.aspx 用来新增XML表单的

3.Show.aspx 用来显现XML表单的

4.ShowResult.aspx 用来显现XML表单提交的成果的

一、数据库结构

要用到动态的表单，这儿咱们运用Sqlserver2005的XML类型来保存，建表的SQL如下：

use Test
/*==============================================================*/
/* DBMS name: Microsoft SQL Server 2005 */
/* Created on: 2009/5/8 7:56:50 */
/*==============================================================*/
if exists (select 1
from sysindexes
where id = object_id('XMLFORM')
and name = 'IDX_XML'
and indid > 0
and indid < 255)
drop index XMLFORM.IDX_XML
go
if exists (select 1
from sysindexes
where id = object_id('XMLFORM')
and name = 'IDX_ID'
and indid > 0
and indid < 255)
drop index XMLFORM.IDX_ID
go
if exists (select 1
from sysobjects
where id = object_id('XMLFORM')
and type = 'U')
drop table XMLFORM
go
/*==============================================================*/
/* Table: XMLFORM */
/*==============================================================*/
create table XMLFORM (
ID int identity,
FORMXML xml not null,
constraint PK_XMLFORM primary key (ID)
)
go
declare @CurrentUser sysname
select @CurrentUser = user_name()
execute sp_addextendedproperty 'MS_Description',
'XMLFORM',
'user', @CurrentUser, 'table', 'XMLFORM'
go
/*==============================================================*/
/* Index: IDX_ID */
/*==============================================================*/
create unique index IDX_ID on XMLFORM (
ID ASC
)
go
/*==============================================================*/
/* Index: IDX_XML */
/*==============================================================*/
create PRIMARY XML INDEX IDX_XML on XMLFORM (
FORMXML
)
go

好了咱们建了一个名为XMLForm的表，其间ID自增，FORMXML为咱们需求的XML表单的内容

二、编写XML的Controller

XMLController.cs

首要的action

1.New



[AcceptVerbs(HttpVerbs.Post), ValidateInput(false)]
public ActionResult New(string xmlContent)
{
System.Threading.Thread.Sleep(2000); //模仿提交等候
xmlContent = Server.UrlDecode(xmlContent);
if (!string.IsNullOrEmpty(xmlContent))
{
//if (!CheckXML(xmlContent, out strError)) //服务器端检测，假如用了ajax检测，就没必要了
//{
// ModelState.AddModelError("_FORM",strError); 
// return View();
//}
XMLFormDataContext db = new XMLFormDataContext();
TransactionOptions opt = new TransactionOptions();
ViewData["xmlContent"] = xmlContent;
opt.IsolationLevel = IsolationLevel.Serializable;
using (TransactionScope tran = new TransactionScope(TransactionScopeOption.RequiresNew, opt))
{
XMLFORM f = new XMLFORM();
try
{
f.FORMXML = XElement.Parse(xmlContent);
db.XMLFORMs.InsertOnSubmit(f);
db.SubmitChanges();
var id = db.XMLFORMs.Max(p => p.ID);
ViewData["result"] = "success";
ViewData["id"] = (int)id;
tran.Complete();
return View();
}
catch
{
ViewData["result"] = "failure";
ModelState.AddModelError("_FORM", "envalid xml format");
return View();
}
}
}
else
return View();
}XML：

留意：咱们运用了业务，所以不要忘了***要提交。我便是忘了，找了3天过错 2.Show

[AcceptVerbs(HttpVerbs.Get)]
public ActionResult Show(int? ID)
{
int nId = 0;
XElement doc = null;
if (int.TryParse(Request["id"], out nId))
{
try
{
XMLFormDataContext db = new XMLFormDataContext();
var q = from f in db.XMLFORMs
where f.ID == nId
select f.FORMXML
;
if (q.Count() > 0)
{
foreach (var qq in q)
{
doc = qq;
}
ViewData["xml"] = doc;
}
else
{
ModelState.AddModelError("_FORM", "Not Exists");
}
ViewData["id"] = nId;
}
catch (Exception e)
{
ModelState.AddModelError("_FORM", e.Message);
}
}
else
{
ModelState.AddModelError("_FORM", "Miss ID");
}
return View();
}

留意这儿Show.asp的写法.不能用< input .../ >直接输出控件字符串，而要

Response.Write(Html.TextBox(i.Attribute("Name").Value, "", new { @class = "InputNormal" }));不然提交后得不到form的值代码如下：

 


Show XML Form



XML Form Information

XML内容的检测

咱们能够运用XSD来查看。

代码如下

 #region 查看xml
[AcceptVerbs(HttpVerbs.Post), ValidateInput(false)]
public ActionResult checkXML(string xmlContent)
{
string strOut = string.Empty;
int nResult = (CheckXML(xmlContent, out strOut) == true) ? 1 : 0;
Dictionary dicResult = new Dictionary();
dicResult.Add("State", nResult.ToString());
dicResult.Add("Message", strOut);
return Json(dicResult);
}
private bool CheckXML(string xmlContent)
{
bool bResult = true;
if (!string.IsNullOrEmpty(xmlContent))
{
//运用XmlSchemaSet(XSD)查看XML
XmlSchemaSet validator = new XmlSchemaSet();
validator.Add("", XmlReader.Create(Server.MapPath(Url.Content("~/Models/xmlTest.xsd")))); //Url.Content有必要，不然找不到文件
XDocument doc = null;
try
{
doc = XDocument.Parse(xmlContent);
doc.Validate(validator, (sender, e) =>
{
bResult = false;
});
}
catch
{
bResult = false;
}
}
else
bResult = false;
return bResult;
}
private bool CheckXML(string xmlContent, out string outString)
{
bool bResult = true;
string strError = string.Empty;
if (!string.IsNullOrEmpty(xmlContent))
{
//运用XmlSchemaSet(XSD)查看XML
XmlSchemaSet validator = new XmlSchemaSet();
validator.Add("", XmlReader.Create(Server.MapPath(Url.Content("~/Models/xmlTest.xsd")))); //Url.Content有必要，不然找不到文件
XDocument doc = null;
try
{
doc = XDocument.Parse(xmlContent);
doc.Validate(validator, (sender, e) =>
{
strError = e.Message;
bResult = false;
});
}
catch (XmlException e)
{
strError = e.Message;
bResult = false;
}
}
else
bResult = false;
if (!bResult)
outString = strError;
else
outString = "OK";
return bResult;
}
#endregion

这儿咱们回来json数据，来ajax查看

 $(document).ready(function() {
$("form").submit(function() {
if (jQuery.formValidator.pageIsValid())
$.blockUI({ message: 'Please Wait...
' });
});
if ($("#xmlContent").val() != "")
$("#xmlContent").val(decodeURI($("#xmlContent").val()));
$.formValidator.initConfig();
$("#xmlContent").formValidator({ onshow: "please input xml", onfocus: "xml required", oncorrect: "OK" })
.inputValidator({ min: 1, empty: { leftempty: true, rightempty: true }, onerror: "xml required" })
.ajaxValidator({
type: "post",
url: "checkXML",
datatype: "json",
success: function(responseData) {
if (responseData.State == "1") {
return true;
}
else {
return false;
}
},
buttons: $("#submit"),
error: function() { alert("server busy,try later..."); },
onerror: "XML Format error or same content",
onwait: "XML checking,please wait..."
});
});
function CheckForm() {
result = jQuery.formValidator.pageIsValid();
if (result) {
$("#xmlContent").val(encodeURI($("#xmlContent").val()));
}
return result;
}

留意咱们运用了encodeURI，decodeURI进行编码，来防止A potentially dangerous Request.QueryString value was detected from the client问题

3.***编写ShowResult

 [AcceptVerbs(HttpVerbs.Post)]
public ActionResult ShowResult()
{
StringBuilder sbResult = new StringBuilder();
foreach(string key in Request.Form.Keys)
{
sbResult.AppendLine(string.Format("{0}={1}", key, Request.Form[key]));
}
return Json(sbResult.ToString());
}

很简单的直接输出form的内容，你也能够进行你自己的处理，用ajax来防止再次改写***成果