在视图中：
@model MvcDNC.Models.clsDSAMaster
@{
Layout = "~/Views/Shared/_Layout.cshtml";
ViewBag.Title = "wfrmDSAMaster";
var grid = new WebGrid( Model.DSAList,canPage: true, canSort: false, rowsPerPage: 10);
int rowVal = 0;
}
<head>
<script language="javascript" type="text/javascript">
window.history.forward(1);
function NumbersOnly() {
//alert(event.keyCode);
if (((event.keyCode < 48 || event.keyCode > 57) && (event.keyCode < 96 || event.keyCode > 105)) && event.keyCode != 8) {
alert("Enter Numbers only");
return false;
}
else {
return true;
}
}
$(document).ready(function () {
if ('@ViewBag.flag' == 'edit') {
$("#tblfooterbtn").css('display', 'none');
$("#tblDSADisp").css('display', 'none');
$("#pnlNewDSA").css('display', 'block');
$("#update").css('display', 'block');
$("#save").css('display', 'none');
}
var count = 0;
$("#btnSearch").click(function () {
var text = $("#ddlFieldName option:selected").text();
$("#ddlFieldName option:selected").val(text);
});
$("#btnAddDSA").click(function () {
$("#tblfooterbtn").css('display', 'none');
$("#tblDSADisp").css('display', 'none');
$("#pnlNewDSA").css('display', 'block');
$(':input', '#form0').removeAttr('selected').not(':button, :submit, :reset, :hidden').val('');
$('#Insert_DSA_ChkFlag').prop('checked', true);
});
$("#btnCancel").click(function () {
$("#tblfooterbtn").css('display', 'block');
$("#tblDSADisp").css('display', 'block');
$("#pnlNewDSA").css('display', 'none');
});
$("#btnSubmit").click(function () {
// $("#tblfooterbtn").css('display', 'block');
// $("#tblDSADisp").css('display', 'block');
// $("#pnlNewDSA").css('display', 'none');
validateBANID();
});
$("#btnUpdate").click(function () {
$("#tblfooterbtn").css('display', 'block');
$("#tblDSADisp").css('display', 'block');
$("#pnlNewDSA").css('display', 'none');
});
$(".btnEdit").click(function () {
var _strDSAID = ($(this).parent().siblings(':first').next()).html();
window.location.href = "/DSA/GetDSADetails?id=" + _strDSAID;
});
$(".btnChangeStatus").click(function () {
var changeStatus = $(this);
var edit = $(this).prev();
changeStatus.prop("disabled", true);
edit.prop("disabled", true);
var _strDSAID = ($(this).parent().siblings(':first').next()).html();
var _strStatus = ($(this).parent().siblings(':first').next().next().next().next()).text();
$.post("UpdateDSAStatus", { id: _strDSAID, Status: _strStatus }, function (data, changeStatus, edit) {
$("#lblError").html(data);
});
});
$("#Insert_DSA_CountryCode").change(function () {
var country = this.value;
$.post("GetLocations", { Location: country, Type: "country" }, function (data) {
$("#Insert_DSA_StateCode").html(data);
});
});
$("#Insert_DSA_StateCode").change(function () {
var state = this.value;
$.post("GetLocations", { Location: state, Type: "state" }, function (data) {
$("#Insert_DSA_CityCode").html(data);
});
});
$("body").on('click', '.btnAddMore', function () {
var parent = $(this).parent();
$(this).remove();
parent.after('<div class="row" style="left:-5px;position:relative;text-align:left; width:80%"><div class="col-xs-6 col-sm-6 col-md-6 col-lg-6"></div><div class="col-xs-3 col-sm-3 col-md-3 col-lg-3"><input type="text"/></div><button class= "btnAddMore" style="left:0px;position:relative;">Add More</button></div>');
});
$("#Insert_DSA_RSMId").blur(function () {
var id = this.value;
$.post("GetSM_ASM_RSM", { id: id, Type: "RSM" }, function (data) {
data = data.toString();
var result = data.split(',');
$("#Insert_DSA_RSMName").val(result[0]);
$("#hdnRsmID").val(result[1]);
$("#Insert_DSA_RSMEmail").val(result[2]);
});
});
$("#Insert_DSA_ASMId").blur(function () {
var id = this.value;
$.post("GetSM_ASM_RSM", { id: id, Type: "ASM" }, function (data) {
data = data.toString();
var result = data.split(',');
$("#Insert_DSA_ASMName").val(result[0]);
$("#hdnASmID").val(result[1]);
$("#Insert_DSA_ASMEmail").val(result[2]);
});
});
$("#Insert_DSA_SMId").blur(function () {
var id = this.value;
$.post("GetSM_ASM_RSM", { id: id, Type: "SM" }, function (data) {
data = data.toString();
var result = data.split(',');
$("#Insert_DSA_SMName").val(result[0]);
$("#hdnSmID").val(result[1]);
$("#Insert_DSA_SMEmail").val(result[2]);
});
});
});
function OnSuccess(data) {
$("#lblError").html(data);
}
function OnFailure(response) {
// alert("There was an error in adding DSA");
}
function validateBANID()
{
var vRSM = document.getElementById('Insert_DSA_RSMId').value;
var vASM = document.getElementById('Insert_DSA_ASMId').value;
var vSM = document.getElementById('Insert_DSA_SMId').value;
if (vRSM == '' && vASM == '' && vSM == '') {
alert('Two out of these three are compulsory');
return false;
}
else if (vRSM != '' && vASM == '' && vSM == '') {
alert('Two out of these three are compulsory');
return false;
}
else if (vRSM == '' && vASM != '' && vSM == '') {
alert('Two out of these three are compulsory');
return false;
}
else if (vRSM == '' && vASM == '' && vSM != '') {
alert('Two out of these three are compulsory');
return false;
}
return true;
}
</script>
</head>
<center>
<div class="container" id="tblDSADisp">
<div class="header3">
<center>@Html.Label("lblHeading", "DSA Master") </center>
</div><br />
@using (Html.BeginForm("wfrmDSAMaster", "DSA", FormMethod.Post, new { id = "DSAMaster" }))
{
<div class="row">
<div class="col-md-2 col-sm-2">
@Html.Label("lblFieldName", "Field Name :")
</div>
<div class="col-md-2 col-sm-2">
@Html.DropDownList("ddlFieldName", new List<SelectListItem>
{
new SelectListItem{ Text="DSA ID", Value = "DDM_DSAID" ,Selected=true},
new SelectListItem{ Text="DSA NAME", Value = "DDM_DSANAME" },
new SelectListItem{ Text="COMPANY", Value = "DDM_COMPANYNAME" },
new SelectListItem{ Text="WORKPHONE", Value = "DDM_WORKPHONE" },
new SelectListItem{ Text="OUTBOUND NO", Value = "DDP_PHONENO" }
})
</div>
<div class="col-md-1 col-sm-1">
@Html.Label("lblKeyword", "Keyword:")
</div>
<div class="col-md-2 col-sm-2">
@Html.TextBox("txtkeyword", "")
@Html.DropDownList("ddlRoleNames", Enumerable.Empty<SelectListItem>(), new { @class = "hidden" })
</div>
<div class="col-md-1 col-sm-1">
@Html.Label("lblCriteria", "Criteria :")
</div>
<div class="col-md-2 col-sm-2">
@Html.DropDownList("ddlCriteria", new List<SelectListItem>
{
new SelectListItem{ Text="Exact Match", Value = "Exact_Match" ,Selected=true} ,
new SelectListItem{ Text="Any", Value = "Any" }
})
</div>
<div class="col-md-1 col-sm-1">
<input type="submit" id="btnSearch" runat="server" class="button" value="Search" name="command" text="Search"/>
</div>
</div>
}
<div class="row">
<div class="col-md-3 col-sm-3">
</div>
<div class="col-md-6 col-sm-6">
<label id="lblSearchError" style = "color:Red" ></label>
</div>
</div>
<div class="row">
@if (Model.DSAList.Count != 0)
{
@grid.GetHtml(tableStyle: "webGrid",
headerStyle: "header3",
footerStyle: "header3",
alternatingRowStyle: "alt",
selectedRowStyle: "select",
columns: grid.Columns(
grid.Column("Sr.No.", format: item => rowVal = rowVal + 1),
grid.Column("DSAID", "DSA ID"),
grid.Column("DSANAME", "DSA Name"),
grid.Column("COMPANYNAME", "Company"),
grid.Column("STATUS", format: (item) =>
{
if (item.STATUS == "1")
{
return Html.Raw(string.Format("<text>Active</text>"));
}
else
{
return Html.Raw(string.Format("<text>Inactive</text>"));
}
}
),
grid.Column("", format: (item) =>
{
if (item.locked == "Y")
{
return Html.Raw(string.Format("<button class='btnEdit' style='width:50px' disabled>Edit</button> <button class='btnChangeStatus' disabled>Change Status</button> "));
}
else
{
return Html.Raw(string.Format("<button class='btnEdit' style='width:50px'>Edit</button> <button class='btnChangeStatus' >Change Status</button> "));
}
}
)))
}
@if (Model.DSAList.Count == 0)
{
@Html.Label("lblhstry", "NO RECORD EXISTS", new { style = "Font-Size:Small" })
}
</div>
<div class="row" style="display:none">
<input id="hdnSearchFlag" runat="server" name="hdnSearchFlag" type="hidden" visible="false" />
</div>
</div>
<div class="container" id="tblfooterbtn" >
<button ID="btnAddDSA" runat="server" class = "button">Add DSA</button><br/><br/>
</div>
<div class="row">
<label id="lblError" style = "Width:100%; font-weight:bold; color:red"></label>
</div>
<div class="container rowcolor1" id="pnlNewDSA" style="border:1px solid;width:60%;display:none" >
@using (Ajax.BeginForm("Save","DSA",
new AjaxOptions { OnSuccess = "OnSuccess", OnFailure = "OnFailure" }))
{
<div class="header3" style="left:-15px;position:relative;width:105%">
<center>@Html.Label("LblHeader", "DSA Details") </center>
</div><br />
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblDSAID", "DSA ID")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@Html.TextBoxFor(m => m.Insert_DSA.DSAId, new { @maxlength = "10" })
@Html.ValidationMessageFor(m => m.Insert_DSA.DSAId)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblDSANAME", "DSA NAME")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.TextBox("txtDSANAME", "", new { style = "AutoCompleteType:disabled; MaxLength:100" })*@
@Html.TextBoxFor(m => m.Insert_DSA.Firstname, new { @maxlength = "100" })
@Html.ValidationMessageFor(m => m.Insert_DSA.Firstname)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblDSACMPNY", "DSA COMPANY")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.TextBox("txtDSANAME", "", new { style = "AutoCompleteType:disabled; MaxLength:100" })*@
@Html.TextBoxFor(m => m.Insert_DSA.Company, new { @maxlength = "70" })
@Html.ValidationMessageFor(m => m.Insert_DSA.Company)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblEMAILID", "EMAIL ID")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.TextBox("txtEMAILID", "", new { style = "AutoCompleteType:disabled; MaxLength:70" })*@
@Html.TextBoxFor(m => m.Insert_DSA.Email_Off, new { @maxlength=70 })
@Html.ValidationMessageFor(m => m.Insert_DSA.Email_Off)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblADDRESS1", "ADDRESS1")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@Html.TextBoxFor(m => m.Insert_DSA.Address1, new {@maxlength=45 })
@Html.ValidationMessageFor(m => m.Insert_DSA.Address1)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblADDRESS2", "ADDRESS2")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.TextBox("txtADDRESS2", "", new { style = "AutoCompleteType:disabled; MaxLength:45" })*@
@Html.TextBoxFor(m => m.Insert_DSA.Address2, new { @maxlength = 45 })
@Html.ValidationMessageFor(m => m.Insert_DSA.Address2)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblADDRESS3", "ADDRESS3")
</div>
<div class="col-md-6 col-sm-6">
@*@Html.TextBox("txtADDRESS3", "", new { style = "AutoCompleteType:disabled; MaxLength:45" })*@
@Html.TextBoxFor(m => m.Insert_DSA.Address3, new { @maxlength = 45 })
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblPIN", "PIN")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.TextBox("txtPin", "", new { style = "AutoCompleteType:disabled; MaxLength:6" })*@
@Html.TextBoxFor(m => m.Insert_DSA.PinCode, new { @maxlength = 6 })
@Html.ValidationMessageFor(m => m.Insert_DSA.PinCode)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblCOUNTRY", "COUNTRY")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.DropDownList("ddlCountry", Model.lstCountry, new { style = "width:150px" })*@
@Html.DropDownListFor(m => m.Insert_DSA.CountryCode, Model.lstCountry, new { style = "width:150px" })
@Html.ValidationMessageFor(m => m.Insert_DSA.CountryCode)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblSTATE", "STATE")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.DropDownList("ddlState", Model.lstState, new { style = "width:150px" })*@
@Html.DropDownListFor(m => m.Insert_DSA.StateCode, Model.lstState, new { style = "width:150px" })
@Html.ValidationMessageFor(m => m.Insert_DSA.StateCode)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblCity", "CITY")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@* @Html.DropDownList("ddlCity", Model.lstCity, new { style = "width:150px" })*@
@Html.DropDownListFor(m => m.Insert_DSA.CityCode, Model.lstCity, new { style = "width:150px" })
@Html.ValidationMessageFor(m => m.Insert_DSA.CityCode)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblWORKPHONE", "WORK PHONE")
</div>
<div class="col-md-6 col-sm-6">
@* @Html.TextBox("txtWORKPHONE", "", new { style = "AutoCompleteType:disabled; MaxLength:11" })*@
@Html.TextBoxFor(m => m.Insert_DSA.Office, new { @maxlength = 11 })
@Html.ValidationMessageFor(m => m.Insert_DSA.Office)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblmobile", "MOBILE")
</div>
<div class="col-md-6 col-sm-6">
@Html.TextBoxFor(m => m.Insert_DSA.Mobile, new { @maxlength = 10 })
</div>
</div>
<div id="phone" class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
<label id="lblTELEPHONENOs">TELEPHONE NOs</label>
</div>
<div class="col-md-6 col-sm-6">
@*<input type="text" name="txtTELEPHONENOs" id="txtTELEPHONENOs"/>*@
@Html.TextBoxFor(m => m.Insert_DSA.Residence, new { @maxlength = 11 })
</div>
<button class= "btnAddMore" style="left:0px;position:relative;">Add More</button>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblPRODUCTHANDLED", "PRODUCT HANDLED")
<font color="red">*</font>
</div>
<div class="col-md-6 col-sm-6">
@*@Html.ListBox("lstbxProduct", Model.lstProduct, new { style = "width:150px" })*@
@Html.ListBoxFor(m => m.Insert_DSA.ProductID, Model.lstProduct)
@Html.ValidationMessageFor(m => m.Insert_DSA.ProductID)
</div>
</div><br/>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblACTIVEUSER", "ACTIVE USER")
</div>
<div class="col-md-6 col-sm-6">
<label> @Html.RadioButtonFor(m => m.Insert_DSA.Active, "1", new { Checked = "checked" }) Yes</label><br />
<label>@Html.RadioButtonFor(m => m.Insert_DSA.Active, "0") No </label>
</div>
</div><br/>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblEmp", "Enter Employee Number Of:")
<font color="red">*</font>
</div>
<div class="col-md-2 col-sm-2">
@Html.Label("lblRSM", "RSM")
</div>
<div class="col-md-2 col-sm-2">
@Html.Label("lblASM", "ASM")
</div>
<div class="col-md-2 col-sm-2">
@Html.Label("lblSM", "SM")
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
<br />
@Html.Label("lblComp", "Two out of these three are compulsory")
</div>
<div class="col-md-2 col-sm-2">
<br />
@Html.TextBoxFor(m => m.Insert_DSA.RSMId, new { @maxlength = 50 })
<input type="hidden" id="hdnRsmID" />
</div>
<div class="col-md-2 col-sm-2">
<br />
@Html.TextBoxFor(m => m.Insert_DSA.ASMId, new { @maxlength = 50 })
<input type="hidden" id="hdnASmID" />
</div>
<div class="col-md-2 col-sm-2">
<br />
@Html.TextBoxFor(m => m.Insert_DSA.SMId, new { @maxlength = 50 })
<input type="hidden" id="hdnSmID" />
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
</div>
<div class="col-md-2 col-sm-2">
@Html.TextBoxFor(m => m.Insert_DSA.RSMName, new { @maxlength = 50 })
@Html.HiddenFor(m => m.Insert_DSA.RSMEmail)
</div>
<div class="col-md-2 col-sm-2">
@Html.TextBoxFor(m => m.Insert_DSA.ASMName, new { @maxlength = 50 })
@Html.HiddenFor(m => m.Insert_DSA.ASMEmail)
</div>
<div class="col-md-2 col-sm-2">
@Html.TextBoxFor(m => m.Insert_DSA.SMName, new { @maxlength = 50 })
@Html.HiddenFor(m => m.Insert_DSA.SMEmail)
</div>
</div>
<div class="row" style="left:-5px;position:relative;text-align:left; width:80%">
<div class="col-md-6 col-sm-6">
@Html.Label("lblPassword", "Change Password At 1st Login", "SM")
</div>
<div class="col-md-6 col-sm-6">
@Html.CheckBoxFor(m => m.Insert_DSA.ChkFlag, new {@checked="checked" })<b>Check this if you want to change password at first login</b>
</div>
@*<label style="left:-15px;position:relative;">Check this if you want to change password at first login</label>*@
</div>
<div class="row">
<div id="save" class="col-md-6 col-sm-6" style="text-align:Right">
<input name="submit"id="btnSubmit" class="buttons" type="submit" value="Save" style="height:22px ;width:50px"/>
</div>
<div id="update" class="col-md-6 col-sm-6" style="display:none;text-align:Right">
<input name="submit" id="btnUpdate" class="buttons" type="submit" value="Update" style="height:22px ;width:50px"/>
</div>
<div class="col-md-6 col-sm-6" style="text-align:left">
<button id="btnCancel" class="buttons" style="height:22px ;width:50px" >Cancel</button>
</div>
</div>
}
</div>
</center>
在模型中：
public class Insert_DSA
{
public string[] ProductDesc { get; set; }
public string Active { get; set; }
public string ASMId { get; set; }
public string ASMName { get; set; }
public string ASMEmail { get; set; }
public string RSMId { get; set; }
public string RSMName { get; set; }
public string RSMEmail { get; set; }
public string SMId { get; set; }
public string SMName { get; set; }
public string SMEmail { get; set; }
//public string UserId { get; set; }
public bool ChkFlag { get; set; }
public string UserId { get; set; }
public string Pending { get; set; }
}
在控制器中：
[HttpPost]
public ActionResult Save(Models.clsDSAMaster MyModel,string submit)
{
int ucount = 0;
string data = "";
var form=Request.Form["Insert_DSA.ChkFlag"].ToString();
if (ModelState.IsValid)
{
if (submit == "Save")
{
ucount = MyModel.Insert_DSA.addDSA(MyModel.Insert_DSA, Session["EmpCode"].ToString());
if (ucount > 0)
{
data = "Records have been sent to Checker and will be in effect post approval";
}
else
{
data = "There was an error in adding DSA";
}
}
else if (submit == "Update")
{
MyModel.Insert_DSA.UpdateDSA(MyModel.Insert_DSA, Session["EmpCode"].ToString());
if (ucount > 0)
{
data = "Records have been sent to Checker and will be in effect post approval";
}
else
{
data = "There was an error in adding DSA";
}
}
}
else
{
var errors = ModelState.Where(x => x.Value.Errors.Any()).Select(x => new { x.Key, x.Value.Errors });
}
return Content(data, "text/html");
}
我没有手动完成此复选框的任何排序验证，但如果取消选中该复选框，则当正确验证的数据发布到控制器ModelState.IsValid时，属性仍为false。
当我使用
var errors = ModelState.Where(x => x.Value.Errors.Any()).Select(x => new { x.Key, x.Value.Errors });
它给了我
ChkFlag字段是必需的。
我想要的是什么：
我不希望复选框是必填字段，即使取消选中该复选框，我也希望ModelState.IsValid属性为真。
答案 0 :(得分：1)
在$("#btnAddDSA").click(function () {脚本中，您有以下
$(':input', '#form0').removeAttr('selected').not(':button, :submit, :reset, :hidden').val('');
正在将复选框的值从value="True"更改为value=""
现在，如果选中复选框，而不是表单数据
...&Insert_DSA.ChkFlag=True&Insert_DSA.ChkFlag=False
回帖
...&Insert_DSA.ChkFlag=&Insert_DSA.ChkFlag=False
请注意，Insert_DSA.ChkFlag=False是CheckBoxFor()方法生成与value="False"相关联的隐藏输入的结果
现在，当DefaultModelBinder读取表单值时，它会找到属性Insert_DSA.ChkFlag的第一个匹配项，并尝试将其设置为空（null）值（相当于{{ 1}}）当然失败了因为bool ChkFlag = null;只能有bool或true的值。因此，您的属性的值是默认值（false），因为无法设置其值，并且添加了false错误。
目前还不清楚此代码的用途是什么，但解决此问题的一种方法是排除ModelState（在input[type="checkbox"]选择器中）。
答案 1 :(得分：-1)
在MVC中，当取消选中该复选框时，它不会被添加到表单元素中，并且modelstate.isvalid将始终返回false。
您必须使用选中的值显式添加它为false。您可以检查控制器操作参数列表中是否有任何值。