Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

MVC - download file using memory contents (model?)

Posted on 2012-03-21
6
Medium Priority
?
451 Views
Last Modified: 2012-03-23
Brand new to MVC.

I have a web page that generates a report.

If the report has 1 or more rows of data, I want to show a "Download Report" button which will take that data and allow for it to be downloaded into some sort of .CSV file.

Possible?

Recommendations?  Tutorials?  Websites?


Thanks!

Tom
0
Comment
Question by:Tom Knowlton
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 3
6 Comments
 
LVL 14

Accepted Solution

by:
binaryevo earned 2000 total points
ID: 37752686
in your action, you can have Return File.


Something like this:

MemoryStream stream = new MemoryStream();
workbook.SaveAs(stream);
return File(stream.ToArray(), "application/vnd.ms-excel", "TestExcelFile.xlsx");

Open in new window

0
 
LVL 5

Author Comment

by:Tom Knowlton
ID: 37753082
Is there a way to prompt for a file name from the user?
0
 
LVL 14

Expert Comment

by:binaryevo
ID: 37753117
What do you mean prompt for a filename?  Are you referring to open / save as dialog by the browser?
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 14

Expert Comment

by:binaryevo
ID: 37753129
If you mean to allow the user to input the name they want to save the file as then yes you can just popup a modal dialog via javascript and pass in the filename into the action on post.  Once you have the filename in the action, just replace the TestExcelFile.xlsx in the return File code with the name passed in.
0
 
LVL 5

Author Comment

by:Tom Knowlton
ID: 37753482
I am new to MVC, in fact, this is my first project.  Somebody else wrote the page, I am just attempting to modify it.

I need help getting the javascript setup and obtaining the file name from the dialog.


I will provide my current source code for "model","view" and "controller".  Hopefully between those 3 files you can help me get this in place.

model
using System;
using System.Collections.Generic;
using System.Linq;
using BarclayPortal.DAL.Models;

namespace BarclayPortal.Website.Models
{

    public class BarclayReportModel
    {

        public DateTime date_received { get; set; }

        public DateTime date_export { get; set; }

        public int? do_not_solicit { get; set; }

        public int? undeliverable { get; set; }

        public int? exceptions_with_letters { get; set; }

        public int? exceptions_without_letters { get; set; }

        public int? correspondence { get; set; }

        // 2012-03-21 BD: Notified by PR that client has requested this to be removed
        // public int? estimated_mail_received { get; set; }

        public int? actual_mail_received { get; set; }

        public int? pobox_mail_received { get; set; }

        public int? non_pobox_mail_received { get; set; }

        public int? white_mail { get; set; }

        public int? letters_mailed { get; set; }

        public int? blue_green_apps { get; set; }

        public int Julian { get; set; }

        public int Partial { get; set; }

        public int Direct { get; set; }

        public int Full { get; set; }

        public Dictionary<int, int> CampaignCounts { get; set; }

        public BarclayReportModel()
        {
            CampaignCounts = new Dictionary<int, int>();
        }

        public static BarclayReportModel ConvertFrom(spBarclayReportRecord item)
        {
            BarclayReportModel retVal = new BarclayReportModel
            {
                date_received = item.date_received,
                date_export = item.date_export,
                do_not_solicit = item.do_not_solicit,
                undeliverable = item.undeliverable,
                exceptions_with_letters = item.exceptions_with_letters,
                exceptions_without_letters = item.exceptions_without_letters,
                correspondence = item.correspondence,
                // estimated_mail_received = item.estimated_mail_received,
                actual_mail_received = item.actual_mail_received,
                pobox_mail_received = item.pobox_mail_received,
                non_pobox_mail_received = item.non_pobox_mail_received,
                white_mail = item.white_mail,
                letters_mailed = item.letters_mailed,
                blue_green_apps = item.blue_green_apps,
                Julian = item.Julian, 
                Partial = item.Partial, 
                Direct = item.Direct, 
                Full = item.Full, 
                CampaignCounts = item.CampaignCounts
            };
            return retVal;
        }

        public static List<BarclayReportModel> ConvertFrom(List<spBarclayReportRecord> items)
        {
            return items.Select(item => ConvertFrom(item)).ToList();
        }
    }

}

Open in new window



view
@model BarclayReportAndParameters
@using BarclayPortal.Website.Models

@{
    ViewBag.Title = "Report";
    string errorMessage = "";
    if (ViewBag.ErrorMessage != null)
    {
        errorMessage = ViewBag.ErrorMessage.ToString();
    }
    Dictionary<int, string> selectOptions = new Dictionary<int, string>();
    foreach (BarclayReportAndParameters.PricePointOptions option in Enum.GetValues(typeof(BarclayReportAndParameters.PricePointOptions)))
    {
        selectOptions.Add((int) option, option.ToString());
    }
}

@{ Html.RenderPartial("SubmenuNav"); }

@if (!string.IsNullOrWhiteSpace(errorMessage))
{
    <p class="MT10 MB10 ML10 MR10 error">@errorMessage</p>
}

@using (Html.BeginForm("Report", "Reports", FormMethod.Post, new { id = "frmReportParameters" }))
{
    <div>
        <fieldset>
            <legend>Parameters</legend>
            <div class="FL MR15">
                <div class="editor-label"><label for="BeginDate">Begin Date</label></div>
                <div class="editor-field">
                    <input type="text" id="BeginDate" name="BeginDate" value="@Model.BeginDate.ToString("MM/dd/yyyy")" maxlength="10" />
                </div>
            </div>
            <div class="FL MR15">
                <div class="editor-label"><label for="EndDate">End Date</label></div>
                <div class="editor-field">
                    <input type="text" id="EndDate" name="EndDate" value="@Model.EndDate.ToString("MM/dd/yyyy")" maxlength="10" />
                </div>
            </div>
            <div class="FL MR15">
                <div class="editor-label"><label for="PricePoint">Price Points</label></div>
                <div class="editor-field">
                    <select id="PricePoint" name="PricePoint">
                        @foreach(KeyValuePair<int, string> kvp in selectOptions)
                        {
                            if ((int) Model.PricePoint == kvp.Key)
                            {
                                <option value="@kvp.Key" selected="selected">@kvp.Value</option>
                            }
                            else
                            {
                                <option value="@kvp.Key">@kvp.Value</option>
                            }
                        }
                    </select>
                </div>
            </div>
            <div class="FL MR15">
                <!-- <div class="editor-label"><label> <br /></label></div> -->
                <div class="editor-field">
                    <input class="MT25" type="submit" value="Generate Report" />
                </div>                
            </div>
            <div class="clear"></div>
        </fieldset>
    </div>
}



@using (Html.BeginForm("ReportTomNew", "Reports", FormMethod.Post, new { id = "frmReportParameters" }))
{
    <div>
        <fieldset>            
            <div class="FL MR15">
                <!-- <div class="editor-label"><label> <br /></label></div> -->
                <div class="editor-field">
                    <input class="MT25" type="submit" value="Download Report" />
                </div>                
            </div>
            <div class="clear"></div>
        </fieldset>
    </div>
}


@if (Model.ReportRecords != null)
{
    <div style="overflow: auto; padding-top: 20px; padding-bottom: 20px; min-height: 420px;">
        <table id="tblReportRecords">
            <thead>
                <tr>
                    <th>Date Received</th>
                    <th>Julian</th>
                    <th>Date Export</th>
                    <th>Partial</th>
                    <th>Direct</th>
                    <th>Full</th>
                    <th>Do Not Solicit</th>
                    <th>Undeliverable</th>
                    <th>Exceptions With Letters</th>
                    <th>Exceptions Without Letters</th>
                    <th>Correspondence</th>
                    <th>Actual Mail Received</th>
                    <th>PO Box mail Received</th>
                    <th>Non PO Box Mail Received</th>
                    <th>White Mail</th>
                    <th>Letters Mailed</th>
                    <th>Blue Green Apps</th>
                    <th>Campaign Counts</th>
                </tr>
            </thead>
            <tbody>
                @foreach (BarclayReportModel item in Model.ReportRecords)
                {
                    <tr>
                        <td>@item.date_received.ToString("MM/dd/yyyy")</td>
                        <td>@item.Julian</td>
                        <td>@item.date_export.ToString("MM/dd/yyyy")</td>
                        <td>@item.Partial</td>
                        <td>@item.Direct</td>
                        <td>@item.Full</td>
                        <td>@item.do_not_solicit</td>
                        <td>@item.undeliverable</td>
                        <td>@item.exceptions_with_letters</td>
                        <td>@item.exceptions_without_letters</td>
                        <td>@item.correspondence</td>
                        <td>@item.actual_mail_received</td>
                        <td>@item.pobox_mail_received</td>
                        <td>@item.non_pobox_mail_received</td>
                        <td>@item.white_mail</td>
                        <td>@item.letters_mailed</td>
                        <td>@item.blue_green_apps</td>
                        <td>@item.CampaignCounts.Count</td>
                    </tr>                
                }
            </tbody>
    </table>
    </div>
}

<link href="@Url.Content("~/Content/dataTables/jquery.dataTables.css")" rel="stylesheet" type="text/css" />
<script src="@Url.Content("~/Scripts/dataTables/jquery.dataTables.min.js")" type="text/javascript"></script>

<script type="text/javascript" language="javascript">

    $(document).ready(function () {
        $('#BeginDate').datepicker();
        $('#EndDate').datepicker();
        var l = $('#tblReportRecords').length;
        if (l > 0)
        {
            $('#tblReportRecords').dataTable();
        }
    });

</script>

Open in new window



controller
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using BarclayPortal.Website.Helpers;
using BarclayPortal.Website.Models;
using System.Data;
using System.IO;
using System.Text;

namespace BarclayPortal.Website.Controllers
{
    public class ReportsController : Controller
    {
        //
        // GET: /Reports/

        [HttpGet]
        public ActionResult Index()
        {
            return View();
        }

        [HttpGet]
        public ActionResult Report(DateTime? loadBeginDate, DateTime? loadEndDate)
        {
            BarclayReportAndParameters model = new BarclayReportAndParameters
            {
                BeginDate = DateTime.Now.AddDays(-1),
                EndDate = DateTime.Now,
                PricePoint = BarclayReportAndParameters.PricePointOptions.NONE, 
                ReportRecords = null
            };
            if (loadBeginDate != null && loadEndDate != null && loadBeginDate.Value <= loadEndDate.Value)
            {
                model.BeginDate = loadBeginDate.Value;
                model.EndDate = loadEndDate.Value;
            }
            return View(model);
        }

        [HttpPost]
        public ActionResult Report(BarclayReportAndParameters model)
        {
            try
            {
                model.ReportRecords = DALHelper.GetReport(model.parameterBeginDate, model.parameterEndDate, model.parameterPricePoint);
                SessionHelper.LastGeneratedBarclayReportAndParameters = model;
            }
            catch (Exception ex)
            {
                ViewBag.ErrorMessage = ex.Message;
                model.ReportRecords = null;
            }

            

            return View(model);
        }




        [HttpGet]
        public ActionResult ReportTomNew(DateTime? loadBeginDate, DateTime? loadEndDate)
        {
            BarclayReportAndParameters model = new BarclayReportAndParameters
            {
                BeginDate = DateTime.Now.AddDays(-1),
                EndDate = DateTime.Now,
                PricePoint = BarclayReportAndParameters.PricePointOptions.NONE,
                ReportRecords = null
            };
            if (loadBeginDate != null && loadEndDate != null && loadBeginDate.Value <= loadEndDate.Value)
            {
                model.BeginDate = loadBeginDate.Value;
                model.EndDate = loadEndDate.Value;
            }
            return View(model);
        }


        [HttpPost]
        public ActionResult ReportTomNew(BarclayReportAndParameters model)
        {
            try
            {
                model = SessionHelper.LastGeneratedBarclayReportAndParameters;
                CSVUtility.GetCSVNew();              
                
                //var filename = "";
                //var contenttype = "text/csv";
                //Response.Clear();
                //Response.ContentType = contenttype;
                //Response.AddHeader("content-disposition", "attachment;filename=" + filename);
                //Response.Cache.SetCacheability(HttpCacheability.NoCache);
                //Response.BinaryWrite(Encoding.ASCII.GetBytes(CSVUtility.stream));
                //Response.End();

                //MemoryStream stream = new MemoryStream();
                //workbook.SaveAs(stream);
                return File(Encoding.ASCII.GetBytes(CSVUtility.stream), "application/vnd.ms-excel", "TestExcelFile.csv");

            }
            catch (Exception ex)
            {
                ViewBag.ErrorMessage = ex.Message;
                model.ReportRecords = null;
            }

            return View(model);
        }

        




    }

}

Open in new window

0
 
LVL 5

Author Closing Comment

by:Tom Knowlton
ID: 37757611
Thanks!
0

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

For those of you who don't follow the news, or just happen to live under rocks, Microsoft Research released a beta SDK (http://www.microsoft.com/en-us/download/details.aspx?id=27876) for the Xbox 360 Kinect. If you don't know what a Kinect is (http:…
More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
Sometimes it takes a new vantage point, apart from our everyday security practices, to truly see our Active Directory (AD) vulnerabilities. We get used to implementing the same techniques and checking the same areas for a breach. This pattern can re…
This lesson discusses how to use a Mainform + Subforms in Microsoft Access to find and enter data for payments on orders. The sample data comes from a custom shop that builds and sells movable storage structures that are delivered to your property. …

636 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question