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

Question

I am new to Asp.net MVC and currently I want to pass some parameter (selected dates) to the controller when user click the action link button, below is the action link and date picker field code,

   <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>

And my controller,

  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();
    }

Now I want to pass the selected date (DownloadOutwardFromDate) as a parameter to the ExportToExcelOutwardCompleted method.But whenever I click the actionlink button then the FromDate parameter is null or default date value, not able to get selected value.So please any one give solution

Answer 1

Pass the model directly to the action. In the action in the codebehind, read those fields directly.

Modify the signature of the action so it can take as parameter the model.

Answer 2

To submit values entered by a user you must use a form . A form can be set to POST or GET .

Example

The view

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

The Controller action

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

    return View();
}

The textboxes have an id set to the same name as the parameter in the action method. This is so that the model binding can associate the data in the request correctly.