<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Index</title>
</head>
<body>
<div>
<% using (Html.BeginForm("Index","Home",FormMethod.Post))
{ %>
<li><input type="text" name="name" id="name" /><%=Html.ValidationMessage("name")%>
</li>
<li><input type="password" name="password" id="password" /></li>
<li><input type="submit" value="提交" name="sub" id="sub" /></li>
<%:ViewData["msg"] %>
<%} %>
</div>
</body>
</html>
[AcceptVerbs("POST")]
public ActionResult Index(Models.UserModel model)
{
if (model != null)
{
if (string.IsNullOrEmpty(model.Name))
{
ModelState.AddModelError("Name", "名称不能为空");
}
else if (model.Name.Length > 20)
{
ModelState.AddModelError("Name", "名称长度不能大于20");
}
}
if (ModelState.IsValid)
{
//如果没错误
}
else
{
//如果有错误
}
return View(model);
}
简单的验证就好了