Asp.net mvc 3 为什么我的模型的必需属性在MVC3中不起作用

在我的模型所在的类文件中，我具有必需的属性，例如：

[Required]
        [Range(0, 99, ErrorMessage = "Sorry, you must select a range between 0 - 99.")]
        public int MaxConcurrentUsers { get; set; }

因此，当我单击页面上的submit按钮发布值时，您可能会认为，因为我为MaxConcurrentUsers键入了错误的值，所以在我的C#代码中无法到达actionResult方法。但确实如此。我注意到的一点是，我的modelstate.valid为false，但我希望客户端阻止它访问该方法。我做错了什么

我的型号

//------------------------------------------------------------------------------
// <auto-generated>
//    This code was generated from a template.
//
//    Manual changes to this file may cause unexpected behavior in your application.
//    Manual changes to this file will be overwritten if the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------

namespace UserManager.Models
{
    using System;
    using System.Collections.Generic;
    using System.ComponentModel.DataAnnotations;

    public partial class vw_UserManager_Model
    {
        public string rowtype { get; set; }
        public System.Guid applicationid { get; set; }
        public System.Guid userid { get; set; }

    //    [StringLength(12, MinimumLength = 6,
    //ErrorMessage = "Username must be between 6 and 12 characters.")]
        public string UserName { get; set; }

        [Required]
        [Range(0, 99, ErrorMessage = "Sorry, you must select a range between 0 - 99.")]
        public int MaxConcurrentUsers { get; set; }

        [Required(ErrorMessage = "First name is a required field")]
        [Display(Name = "First name")]
        public string firstname { get; set; }

        [Required(ErrorMessage = "Last name is a required field")]
        [Display(Name = "Last name")]
        public string lastname { get; set; }

        public string salutation { get; set; }

        [Required]
        [DataType(DataType.Password)]
        [Display(Name = "Password")]
        public string password { get; set; }

        [Required(ErrorMessage = "Email is required.")]
        [DataType(DataType.EmailAddress)]
        [Display(Name = "Email address")]
        public string email { get; set; }

        public string group_name { get; set; }
        public Nullable<long> group_id { get; set; }
        public int moduleid { get; set; }
        public Nullable<int> session_status { get; set; }
        public Nullable<int> islockedout { get; set; }
        public Nullable<bool> isactive { get; set; }

        public bool IsApproved { get; set; }

        public bool alf { get; set; }
        public bool brad { get; set; }

        public string module_name { get; set; }

        public string CompanyName { get; set; }
        public string CompanySearch { get; set; }

        public string selected_module { get; set; }
        public string selected_group { get; set; }

        public string selected_moduleAlf { get; set; }
        public string selected_moduleBrad { get; set; }

        public string selected_groupAlf { get; set; }
        public string selected_groupBrad { get; set; }
    }
}

//------------------------------------------------------------------------------
// 
//此代码是从模板生成的。
//
//手动更改此文件可能会导致应用程序出现意外行为。
//如果重新生成代码，将覆盖对此文件的手动更改。
// 
//------------------------------------------------------------------------------
名称空间UserManager.Models
{
使用制度；
使用System.Collections.Generic；
使用System.ComponentModel.DataAnnotations；
公共部分类vw_UserManager_模型
{
公共字符串行类型{get；set；}
public System.Guid applicationid{get；set；}
public System.Guid用户标识{get；set；}
//[StringLength（12，最小长度=6，
//ErrorMessage=“用户名必须介于6到12个字符之间。”）]
公共字符串用户名{get；set；}
[必需]
[范围（0，99，ErrorMessage=“对不起，您必须选择一个介于0到99之间的范围。”）]
公共int MaxConcurrentUsers{get；set；}
[必填（ErrorMessage=“名字是必填字段”）]
[显示（Name=“First Name”）]
公共字符串名{get；set；}
[必填（ErrorMessage=“姓氏是必填字段”）]
[显示（Name=“Last Name”）]
公共字符串lastname{get；set；}
公共字符串称呼{get；set；}
[必需]
[数据类型（数据类型.密码）]
[显示（Name=“密码”）]
公共字符串密码{get；set；}
[必需（ErrorMessage=“需要电子邮件”。）]
[数据类型（数据类型.电子邮件地址）]
[显示（Name=“电子邮件地址”）]
公共字符串电子邮件{get；set；}
公共字符串组_name{get；set；}
公共可空组_id{get；set；}
public int moduleid{get；set；}
公共可空会话_状态{get；set；}
公共可空islockedout{get；set；}
公共可空isactive{get；set；}
公共布尔值已批准{get；set；}
公共布尔alf{get；set；}
公共布尔值{get；set；}
公共字符串模块_name{get；set；}
公共字符串CompanyName{get；set；}
公共字符串CompanySearch{get；set；}
所选公共字符串_模块{get；set；}
选定的公共字符串\u组{get；set；}
选定的公共字符串\u modulelf{get；set；}
选定的公共字符串_moduleBrad{get；set；}
选定的公共字符串\u groupAlf{get；set；}
选定的公共字符串\u groupBrad{get；set；}
}
}

我的观点

@model UserManager.Models.vw_UserManager_Model 
<h2 style="padding-left: 25px;">
    Create user</h2>
@using (Html.BeginForm())
{
    <!-- ALF/BRAD selection -->
    @Html.ValidationSummary(true)
    <fieldset style="width: 400px; padding-left: 15px;">
        <legend>Select module type:</legend>
        <div class="module-selection">
            @Html.Label("Select ALF")
            <input type="checkbox" checked="checked" id="chkAlf" name="selection" value="Alf"
                onclick="chkSelection()" />
            @Html.Label("Select BRAD")
            <input type="checkbox" id="chkBrad" name="selection" value="Brad" onclick="chkSelection()" />
        </div>
    </fieldset>

    <!-- Module selection -->
    <fieldset style="width: 400px; padding-left: 15px;">
        <legend>Select module:</legend>
        <div id="alfModules">
            @{Html.RenderAction("_CreateUserModulesAlf", "UserManager");}
        </div>
        <br />
        <div id="bradModules">
            @{Html.RenderAction("_CreateUserModulesBrad", "UserManager");}
        </div>
    </fieldset>

    <!-- Check if group exists -->
    <fieldset style="width: 400px; padding-left: 15px;">
        <legend>Group Checker</legend>
        <div id="createuser-groupnamesearch">
            @{Html.RenderAction("_txtGroupSearchForm", "UserManager");}
        </div>
    </fieldset>

    <fieldset style="width: 400px; padding-left: 15px;">
        <legend>New User Details</legend>
        <div class="editor-label">
            @Html.LabelFor(Model => Model.salutation)
        </div>
        <div class="editor-field">
            @Html.DropDownListFor(Model => Model.salutation, new List<SelectListItem>
                     {
                        new SelectListItem{ Text="Mr", Value = "Mr" }, 
                        new SelectListItem{ Text="Mrs", Value = "Mrs" },
                        new SelectListItem{ Text="Miss", Value = "Miss" },
                        new SelectListItem{ Text="Ms", Value = "Ms" },
                        new SelectListItem{ Text="Dr", Value = "Dr" }
                     })
            @Html.ValidationMessageFor(model => Model.salutation)
        </div>
        <div id="createuser-usernamesearch">
            @{Html.RenderAction("_txtUsernameSearch", "UserManager");}
        </div>
        <div class="editor-label">
            @Html.Label("Firstname")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => Model.firstname)
            @Html.ValidationMessageFor(model => Model.firstname)
        </div>
        <div class="editor-label">
            @Html.Label("Surname")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => Model.lastname)
            @Html.ValidationMessageFor(model => Model.lastname)
        </div>
        <div class="editor-label">
            @Html.Label("Password")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => Model.password)
            @Html.ValidationMessageFor(model => Model.password)
        </div>
        <div class="editor-label">
            @Html.Label("Email")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => Model.email)
            @Html.ValidationMessageFor(model => Model.email)
        </div>
        <div class="editor-label">
            @Html.Label("Is active")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => Model.isactive)
            @Html.ValidationMessageFor(model => Model.isactive)
        </div>
        <div class="editor-label">
            @Html.Label("Maximum concurrent users")
        </div>
        <div class="editor-field">
            @Html.EditorFor(model => Model.MaxConcurrentUsers)
            @Html.ValidationMessageFor(model => Model.MaxConcurrentUsers, "Enter a number between 0-99.")
        </div>
        <div id="moduleSelection">
            @Html.HiddenFor(Model => Model.selected_moduleAlf, new { id = "hdnModuleAlf" })
            @Html.HiddenFor(Model => Model.selected_moduleBrad, new { id = "hdnModuleBrad" })
        </div>
        <input type="submit" value="Create" onclick="return submitWith();" />
        <span id="validationMessage"></span>
        <br />
        <br />
        @Html.ActionLink("Back to List", "Index")
    </fieldset>


    <div>
        @Html.ValidationSummary()
    </div>

}
<script type="text/javascript">

    // Count checkboxes that are checked.
    function submitWith() {
        var checkedCount = $("input:checked").length;
        var valid = checkedCount > 0;

        // Check that one checkbox is checked first
        if (!valid) { // IF false
            $('#validationMessage').html('You must select at least one option').css("background-color", "red");
        }


        // Second check ALF
        else if ($('.module-selection #chkAlf').is(':checked')) {
            if ($("#txtGroupnameExistsAlf").val() == "Alf Group doesn't exist.") {
                valid = false;
                $('#validationMessage').html('Group must exist in ALF Database first').css("background-color", "red");
            }
            if ($("#txtGroupnameExistsAlf").val() == "") {
                valid = false;
                $('#validationMessage').html('A group must be picked when creating a new user.').css("background-color", "red");
            }
        }


        // Third check
        else if ($('.module-selection #chkBrad').is(':checked')) {
            if ($("#txtGroupnameExistsBrad").val() == "Brad Group doesn't exist.") {
                valid = false;
                $('#validationMessage').html('Group must exist in BRAD Database first').css("background-color", "red");
            }
            if ($("#txtGroupnameExistsBrad").val() == "") {
                valid = false;
                $('#validationMessage').html('A group must be picked when creating a new user.').css("background-color", "red");
            }
        }


        else {
            valid = true;
        }

        return valid;
    }

    function chkSelection() {
//        alert("check selection");
        filters = new Object();

        if ($('.module-selection #chkAlf').is(':checked')) {
            // Show Div
            $("#alfModules").show();
            $("#groupname-checker-alf").show();

            // Show username checker for Alf
            $("#username-checker-alf").show();
            // Set ALF model property to true
            $("#hdnAlf").val("true");
            // Set alf value for one to be passed to Ajax request
            filters.alf = 1;

            var selectedVal = $("#ddlSelectedAlf :selected").val();
            $('#hdnModuleAlf').val(selectedVal);

        }
        else {
            $("#alfModules").hide();
            $("#groupname-checker-alf").hide();
            $("#hdnAlf").val("false");
            $("#username-checker-alf").hide();
            filters.alf = 0;

            $('#hdnModuleAlf').val("false");
            $("#txtGroupnameExistsAlf").val("").css("background-color", "white");
        }

        if ($('.module-selection #chkBrad').is(':checked')) {
            // Show Div
            $("#bradModules").show();
            $("#groupname-checker-brad").show();
            // Show username checker for Alf
            $("#username-checker-brad").show();
            // Set alf value for one to be passed to Ajax request
            filters.brad = 1;

            var selectedVal = $("#ddlSelectedBrad :selected").val();
            $('#hdnModuleBrad').val(selectedVal);


        }
        else {
            $("#bradModules").hide();
            $("#groupname-checker-brad").hide();
            $("#hdnBrad").val("false");
            $("#username-checker-brad").hide();
            filters.brad = 0;

            $('#hdnModuleBrad').val("false");
            $("#txtGroupnameExistsBrad").val("").css("background-color", "white");
        }
        filters.username = $('#createuser-usernamesearch #user_name').val();
        return filters;
    }


    function searchUsername() {
        var filters = chkSelection();
        $.ajax({
            url: '@Url.Action("UsernameSearch", "UserManager")',
            type: "POST",
            async: true,
            dataType: "json",
            data: "username=" + filters.username,
            success: function (data) {
                var usernameExistsAlf = parseInt(data.usernameAlf);
                if (usernameExistsAlf > 0) {
                    $('#txtUsernameExistsAlf').val("Username already exists").css("background-color", "red");
                }
                else {
                    $('#txtUsernameExistsAlf').val("Username doesn't exist").css("background-color", "#33ff00");
                }

                var usernameExistsBrad = parseInt(data.usernameBrad);
                if (usernameExistsBrad > 0) {
                    $('#txtUsernameExistsBrad').val("Username already exists").css("background-color", "red");
                }
                else {
                    $('#txtUsernameExistsBrad').val("Username doesn't exist").css("background-color", "#33ff00");
                }
            },
            error: function (data) {

            }
        });
    }

    $("#group_name").autocomplete({
        source: function (request, response) {
            $.ajax({
                url: '@Url.Action("LookUpGroupName", "UserManager")',
                dataType: "json",
                data: {
                    featureClass: "P",
                    style: "full",
                    maxRows: 12,
                    value: request.term
                },
                success: function (data) {
                    response($.map(data, function (item) {
                        //                            alert(item.group);
                        return {
                            label: item.group,
                            value: item.group
                        } // end of return

                    })); // end of response

                }, // end of success
                error: function (jqXHR, textStatus, errorThrown) {
                    alert(textStatus);
                } // end of error
            }); // end of ajax
        },
        minLength: 2,
        select: function (event, ui) { // Assign to hidden values to trigger onchange ajax call.

            $.ajax({
                url: '@Url.Action("GroupnameCheck", "UserManager")',
                dataType: "json",
                data: {
                    featureClass: "P",
                    style: "full",
                    maxRows: 12,
                    value: ui.item.label
                },
                success: function (data) {
                    $.each(data, function (index, value) {
                        if (index == "AlfGroup") {
                            $("#txtGroupnameExistsAlf").val(value);
                            if ($("#txtGroupnameExistsAlf").val() == "Alf Group doesn't exist.") {
                                $("#txtGroupnameExistsAlf").css("background-color", "red");
                            }
                            else {
                                $('#txtGroupnameExistsAlf').css("background-color", "#33ff00");
                            }
                        }

                        if (index == "BradGroup") {
                            $("#txtGroupnameExistsBrad").val(value);
                            if ($("#txtGroupnameExistsBrad").val() == "Brad Group doesn't exist.") {
                                $("#txtGroupnameExistsBrad").css("background-color", "red");
                            }
                            else {
                                $('#txtGroupnameExistsBrad').css("background-color", "#33ff00");
                            }
                        }
                    });
                }, // end of success
                error: function (jqXHR, textStatus, errorThrown) {
                    alert(textStatus);
                } // end of error
            }); // end of ajax

            $('#hdnGroupAlf').val(ui.item.label);
            $('#hdnGroupBrad').val(ui.item.label);
        },
        open: function () {
            $(this).removeClass("ui-corner-all").addClass("ui-corner-top");
        },
        close: function () {
            $(this).removeClass("ui-corner-top").addClass("ui-corner-all");
        }
    });

    $(document).ready(function () {
        chkSelection();
    });
</script>

@model UserManager.Models.vw\u UserManager\u model
创建用户
@使用（Html.BeginForm（））
{
@Html.ValidationSummary（true）
选择模块类型：
@Html.Label（“选择ALF”）
@标签（“选择标签”）
选择模块：
@{Html.RenderAction（“_createUserModuleSelf”，“UserManager”）；}


@{Html.RenderAction（“_CreateUserModulesBrad”，“UserManager”）；}
组检查器
@{Html.RenderAction（“\uTxtGroupSearchForm”，“UserManager”）；}
新用户详细信息
@LabelFor（Model=>Model.sallation）
@DropDownListFor（Model=>Model.saltation，新列表
{
新建SelectListItem{Text=“Mr”，Value=“Mr”}，
新建SelectListItem{Text=“Mrs”，Value=“Mrs”}，
新建SelectListItem{Text=“Miss”，Value=“Miss”}，
新建SelectListItem{Text=“Ms”，Value=“Ms”}，
新建SelectListItem{Text=“Dr”，Value=“Dr”}
})
@Html.ValidationMessageFor（model=>model.sallation）
@{Html.RenderAction（“\uTxtUserNameSearch”，“UserManager”）；}
@Html.Label（“Firstname”）
@EditorFor（model=>model.firstname）
@Html.ValidationMessageFor（model=>model.firstname）
@Html.Label（“姓氏”）
@EditorFor（model=>model.lastname）
@Html.ValidationMessageFor（model=>model.lastname）
@Html.Label（“密码”）
@EditorFor（model=>model.password）
@Html.ValidationMessageFor（model=>model.password）
@Html.Label（“电子邮件”）
@EditorFor（model=>model.email）
@Html.ValidationMessageFor（model=>model.email）
@Html.Label（“处于活动状态”）
@EditorFor（model=>model.isactive）
@Html.ValidationMessageFor（model=>model.isactive）
@Label（“最大并发用户数”）
@EditorFor（model=>model.MaxConcurrentUsers）
@Html.ValidationMessageFor（model=>model.MaxConcurrentUsers，“输入一个介于0-99之间的数字”）
@Html.HiddenFor（Model=>Model.selected_modulelf，new{id=“hdnModuleAlf”}）
@Html.HiddenFor（Model=>Model.selected_moduleBrad，new{id=“hdnModuleBrad”
<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>@ViewBag.Title</title>
    <!-- Javascript -->
    <script src="../../Scripts/jquery-1.8.3.min.js" type="text/javascript"></script>
    @* <script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>*@
    <script src="@Url.Content("~/Scripts/modernizr-1.7.min.js")" type="text/javascript"></script>
    @* <script src="@Url.Content("~/Scripts/jquery.autocomplete.js")" type="text/javascript"></script>
         <script src="@Url.Content("~/Scripts/Custom/autocompleteGroup.js")" type="text/javascript"></script>*@
    <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>

    <link rel="stylesheet" href="http://code.jquery.com/ui/1.9.2/themes/base/jquery-ui.css" />
    <script src="http://code.jquery.com/jquery-1.8.3.js"></script>
    <script src="http://code.jquery.com/ui/1.9.2/jquery-ui.js"></script>
    <!-- Javascript -->
    <!-- Stylesheets -->
    <link href="@Url.Content("~/Content/themes/base/jquery.ui.autocomplete.css")" rel="stylesheet" type="text/css" />
    <link href="@Url.Content("~/Content/themes/base/jquery.ui.autocomplete.custom.css")" rel="stylesheet" type="text/css" />
    <link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" />
    <!-- Stylesheets -->
</head>
<body>
    <div class="page">
        <div id="header">
           <div id="title" >
    <h1>ALF and BRAD User Manager</h1>
</div>
<div id="logindisplay">
    <span style="color:Black; background-color:white;  text-align:right;">
        Logged in as:&nbsp<strong>@Context.User.Identity.Name</strong>
    </span> 
</div>

            <nav>
                <ul id="menu">
                    @Html.ActionLink("User Manager Dashboard", "Index", "UserManager")&nbsp&nbsp
                    @Html.ActionLink("User Analytics", "Index", "UserStatus")&nbsp&nbsp
                    @Html.ActionLink("Email Distibution", "Index", "EmailDistributionList")&nbsp&nbsp
                    @Html.ActionLink("Email User Details", "Index", "EmailUserDetails")&nbsp&nbsp
                </ul>
            </nav>
        </div>
        <section id="main">
            @RenderBody()
        </section>
        <footer>
        </footer>
    </div>
</body>
</html>
@*  <script type="text/javascript">
            $(document).ready(function () {
                doAutocomplete('@Url.Action("LookUpGroupName", "UserManager")');
            });
</script>*@ 

if (ModelState.IsValid) {
    // Save, redirect to action
}

return View(model); // send them back to correct the problem!

<appSettings>
<add key="webpages:Version" value="1.0.0.0" />
<add key="ClientValidationEnabled" value="true" />
<add key="UnobtrusiveJavaScriptEnabled" value="true" />
</appSettings>

 <script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
   <script src="@Url.Content("~/Scripts/modernizr-1.7.min.js")" type="text/javascript"></script>
  <script src="@Url.Content("~/Scripts/jquery.unobtrusive-ajax.min.js")" type="text/javascript"></script>
  <script src="@Url.Content("~/Scripts/jquery.validate.js")" type="text/javascript"></script>
  <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.js")" type="text/javascript"></script>