Tuesday, September 15, 2015

Import Data from Excel File to Asp.Net Mvc View and Read File


                                    @using (Html.BeginForm("viewname", "controller", FormMethod.Post, new { enctype = "multipart/form-data" }))
                                    {
                                        <div class="upload">
                                            @*<span class="btn btn-file">Upload<input type="file" /></span>
                                            <label class="btn btn-success">Fill Down columnM</label>*@
                                            <input type="file" class="btn btn-file" name="file" id="file" />
                                            <input type="submit" class="btn btn-success" value="Hiiiiii" />
                                            @*<input type="submit" class="btn btn-success" href="Calculation">Fill Down column </input>*@
                                        </div>
                                        <div class="row">
                                          
                                            <table id="tablepaging" class="table table-striped">
                                                <thead>
                                                    <tr>
                                                        <th>Id </th>
                                                        <th>Fname</th>
                                                        <th>Lname </th>

                                                    </tr>
                                                </thead>
                                                <tbody>
                                                    @{
                                        if (ViewData["Excel"] != null)
                                        {
                                            System.Data.DataTable error = (System.Data.DataTable)ViewData["Excel"];
                                            int count = error.Rows.Count;
                                            for (int i = 0; i < count; i++)
                                            {
                                                System.Data.DataRow errorRow = error.Rows[i];
                                                int x = i % 2;
                                                if (x == 0)
                                                {
                                                    <tr class="even">
                                                        <td>@errorRow["Id"]</td>
                                                        <td>@errorRow["Fname"]</td>
                                                        <td>@errorRow["Lname"]</td>

                                                    </tr>
                                                }
                                                else
                                                {
                                                    <tr class="odd">
                                                        <td>@errorRow["Id"]</td>
                                                        <td>@errorRow["Fname"]</td>
                                                        <td>@errorRow["Lname"]</td>
                                                    </tr>
                                                }
                                            }
                                        }
                                                    }
                                                </tbody>
                                            </table>

                                            <div class="row">
                                                <div class="col-xs-6 col-sm-3">

                                                    <div class="form-group">
                                                        <a type="submit" class="btn btn-primary" href="Calculation">Save </a>
                                                    </div>
                                                </div>
                                            </div>
                                        </div>
                                   

                                    }
==================================
[HttpPost]
        [Authorize]
        public ActionResult Naresh(HttpPostedFileBase file)
        {
            string savedFileName = "";
            var r = new List<solutionname.model.ViewData>();
            foreach (string files in Request.Files)
            {
                HttpPostedFileBase hpf = Request.Files[files] as HttpPostedFileBase;
                if (hpf.ContentLength == 0)
                    continue;

                savedFileName = Path.Combine(Server.MapPath("~/Extensions"), Path.GetFileName(hpf.FileName));

                hpf.SaveAs(savedFileName); // Save the file

                r.Add(new CanPayApp.Models.ViewData()
                {
                    Name = hpf.FileName,
                    Length = hpf.ContentLength,
                    Type = hpf.ContentType
                });
            }

            // string csv_file_path = @"+savedFileName";
            DataTable csvData = new DataTable();
            using (TextFieldParser csvReader = new TextFieldParser(savedFileName))
            {
               
                csvReader.SetDelimiters(new string[] { "," });
                csvReader.HasFieldsEnclosedInQuotes = true;
                //read column names
                string[] colFields = csvReader.ReadFields();
                foreach (string column in colFields)
                {
                    DataColumn datecolumn = new DataColumn(column);
                    datecolumn.AllowDBNull = true;
                    csvData.Columns.Add(datecolumn);
                }
                while (!csvReader.EndOfData)
                {
                    string[] fieldData = csvReader.ReadFields();
                    //Making empty value as null
                    for (int i = 0; i < fieldData.Length; i++)
                    {
                        if (fieldData[i] == "")
                        {
                            fieldData[i] = null;
                        }
                    }
                    csvData.Rows.Add(fieldData);
                }
            }
            ViewData["Excel"] = csvData;