MVC 4 将参数从 ActionLink（类型：HttpGet）传递给控制器

Question

我是 Asp.net MVC 的新手，目前我想在用户单击操作链接按钮时将一些参数（选定日期）传递给控制器​​，下面是操作链接和日期选择器字段代码，

   <div class="panel panel-default">
    <div class="panel-heading">
        <h3 class="panel-title">
            Manage Outward - Completed</h3>
    </div>
    <div class="panel-body">
        @Html.CreateJQGrid(Model.GridCompletedOWData)
        <br />
        <div class="icon-list">
            @Html.ActionLink("Download Completed Transactions", "ExportToExcelOutwardCompleted", "InwardOutward", new { enctype = "multipart/form-data", model = @Model, FromDate = @Model.DownloadOutwardFromDate.ToString(), ToDate = Model.DownloadOutwardFromDate.ToString() }, new { @id = "DownloadAccount", @class = "linkTxt" })
        </div>
    </div>
       <div class="col-md-3">
                <label for="" class="control-label">
                    Download From Date
                </label>
                @Html.EditorFor(model => model.DownloadOutwardFromDate, new { @class = "form-control" }).DisableIf(() => Model.IsReadOnly == true)
                @Html.HiddenFor(model => model.DownloadOutwardFromDate)
        </div>
        <div class="col-md-3">
            <label for="" class="control-label">
                Download To Date
            </label>
            @Html.EditorFor(model => model.DownloadOutwardToDate, new { @class = "form-control" }).DisableIf(() => Model.IsReadOnly == true)
            @Html.HiddenFor(model => model.DownloadOutwardToDate)
        </div>
        <br />
</div>

还有我的控制器，

  public ActionResult ExportToExcelOutwardCompleted(CompletedIWOWDetailsModel model, string FromDate, string ToDate)
    {

        var employeeBranch = employeeBranchService.FilterBy(x => x.Userseq == LoggedInUser.UserSeqeunce).Select(x => x.Branchseq).ToList();
        var userIds = employeeBranchService.FilterBy(x => employeeBranch.Contains(x.Branchseq)).Select(x => x.Userseq).ToList();

        List<TrnOutflowDetailsAud> trnInflowDetailsP = trnOutwardDetailsAudService.FilterBy(x =>
            (employeeBranch.Contains(x.InitiatedBranchSeq) && (x.OutflowStage == (int)enumOutflowStage.Completed) && x.Transactiondate >= DateTime.Now.AddDays(-30))).ToList();

        var clientDCAList = clientDcaService.All().Where(x => x.Active == "Y").ToList();
        var List = (from p in trnInflowDetailsP.ToList()
                    join C in GetCurrency() on p.Currencyoftheinstructedamount equals C.Id into CTClist
                    from C in CTClist.DefaultIfEmpty()

                    join CC in GetCurrency() on p.Currencyofthetransaction equals CC.Id into CTC
                    from CC in CTC.DefaultIfEmpty()

                    join PC in GetPurposeCode() on p.PurposeCodeSeq equals PC.Id into PurLIST
                    from PC in PurLIST.DefaultIfEmpty()

                    join CU in GetUserList() on p.CreateUser equals CU.Id into CUL
                    from CU in CUL.DefaultIfEmpty()

                    join AU in GetUserList() on p.AuthUser equals AU.Id into AUL
                    from AU in AUL.DefaultIfEmpty()

                    //join D in GetDepartmentList() on p.DepartmentSeq equals D.Id into DEPList
                    //from D in DEPList.DefaultIfEmpty()

                    join b in branchService.All().ToList() on p.BranchSeq equals b.Id into branch
                    from b in branch.DefaultIfEmpty()

                    join IB in branchService.All().ToList() on p.InitiatedBranchSeq equals IB.Id into IBList
                    from IB in IBList.DefaultIfEmpty()

                    //join CTC in clientDCAList on p.AccountNumber equals CTC.AccountNo into CTCList
                    //from CTC in CTCList.DefaultIfEmpty()

                    select new
                    {
                        p.TranRef,
                        TradeStatus = p.OutflowStage == 0 ? "" : ((enumOutflowStage)p.OutflowStage).GetDescriptionEnum(),
                        InitiatedBranchName = IB == null ? "" : IB.BranchName,
                        p.Draccountnumber,
                        BranchName = b == null ? "" : b.BranchName,
                        TransactionDate = p.Transactiondate.GetFormatDateWithOutTime(),
                        p.CustomerName,
                        p.Noofinstructions,
                        p.Amount,
                        CurrencyOfTheInstructedAmount = C == null ? "" : C.CurrencyCode,
                        CurrencyOfTheTransaction = CC == null ? "" : CC.CurrencyCode,
                        PurposeCode = PC == null ? "" : PC.PurCode,
                        ProductName = p.ProductName == 0 ? "" : ((enumOutflowProductNames)p.ProductName).GetDescriptionEnum(),
                        p.ProductNameOthers,
                        p.Anyotherspecificinstruction,
                        Modeoftransaction = p.Modeoftransaction == null ? "" : ((enumModeOfTransaction)p.Modeoftransaction).GetDescriptionEnum(),
                        SignatureVerification = p.SignatureVerification.GetYesNoString(),
                        Callback = p.Callback.GetYesNoString(),
                        p.IdmsRefNo,
                        //p.BatchNo,
                        p.Remarks,
                        Active = p.Active.GetYesNoString(),
                        //p.Status,
                        CreateUserName = CU == null ? "" : CU.UserName,
                        CreateDate = p.CreateDate.GetFormatDateWithOutTime(),
                        p.CreatorRemarks,
                        AuthUserName = AU == null ? "" : AU.UserName,
                        AuthDate = p.AuthDate.GetFormatDateWithOutTime(),
                        p.AuthRemarks
                    }).ToList();

        ExcelPackage excel = new ExcelPackage();
        var workSheet = excel.Workbook.Worksheets.Add("Sheet1");
        workSheet.Cells[1, 1].LoadFromCollection(List, true);
        using (var memoryStream = new MemoryStream())
        {
            Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
            Response.AddHeader("content-disposition", "attachment;  filename=" + Constants.Controller.InwardOutward + ".xlsx");
            excel.SaveAs(memoryStream);
            memoryStream.WriteTo(Response.OutputStream);
            Response.Flush();
            Response.End();
        }
        return View();
    }

现在我想将选定的日期（DownloadOutwardFromDate）作为参数传递给 ExportToExcelOutwardCompleted 方法。

Answer 1

将模型直接传递给动作。 在代码隐藏的操作中，直接读取这些字段。

修改动作的签名，以便它可以将模型作为参数。

Answer 2

要提交用户输入的值，您必须使用form 。 form可以设置为POST或GET 。

例子

风景

@using (@Html.BeginForm("ExportToExcelOutwardCompleted", "InwardOutward", FormMethod.Get))
{
    @Html.TextBox("dateFrom")
    @Html.TextBox("dateTo")
    <button type="submit">Submit</button>
}

控制器动作

public ActionResult ExportToExcelOutwardCompleted(string dateFrom, string dateTo)
{
    // Your code here

    return View();
}

文本框的 id 设置为与操作方法中的参数相同的名称。 这是为了让模型绑定可以正确关联请求中的数据。