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Exporter des données vers un fichier Excel avec ASP.NET MVC 4 C # est rendu dans la vue

J'ai des difficultés à exporter des données vers Excel. Ce qui suit semble rendre le gridview dans ma vue, au lieu d’inviter l’utilisateur à s’ouvrir avec Excel, que j’ai installé sur ma machine.

 Public ActionResult ExportToExcel()
{            
    var products = this.Repository.Products.ToList();

    var grid = new GridView();
    grid.DataSource = from p in products
                      select new
                      {
                          Id = p.Id,
                          Name = p.Name
                      };
    grid.DataBind();

    Response.ClearContent();
    Response.Buffer = true;
    Response.AddHeader("content-disposition", "attachment; filename=MyExcelFile.xls");
    Response.ContentType = "application/ms-Excel";

    Response.Charset = "";
    StringWriter sw = new StringWriter();
    HtmlTextWriter htw = new HtmlTextWriter(sw);

    grid.RenderControl(htw);

    Response.Output.Write(sw.ToString());
    Response.Flush();
    Response.End();

    return View("MyView"); 
}

Qu'est-ce que je fais mal?

asp.net-mvcexport-to-excel
33
duyn9uyen

J'ai essayé votre code et cela fonctionne très bien. Le fichier est créé sans aucun problème, c'est le code que j'ai utilisé (c'est votre code, je viens de changer la source de données pour le test):

    public ActionResult ExportToExcel()
    {
        var products = new System.Data.DataTable("teste");
        products.Columns.Add("col1", typeof(int));
        products.Columns.Add("col2", typeof(string));

        products.Rows.Add(1, "product 1");
        products.Rows.Add(2, "product 2");
        products.Rows.Add(3, "product 3");
        products.Rows.Add(4, "product 4");
        products.Rows.Add(5, "product 5");
        products.Rows.Add(6, "product 6");
        products.Rows.Add(7, "product 7");


        var grid = new GridView();
        grid.DataSource = products;
        grid.DataBind();

        Response.ClearContent();
        Response.Buffer = true;
        Response.AddHeader("content-disposition", "attachment; filename=MyExcelFile.xls");
        Response.ContentType = "application/ms-Excel";

        Response.Charset = "";
        StringWriter sw = new StringWriter();
        HtmlTextWriter htw = new HtmlTextWriter(sw);

        grid.RenderControl(htw);

        Response.Output.Write(sw.ToString());
        Response.Flush();
        Response.End();

        return View("MyView");
    }
71
boossss

Vous pouvez appeler la classe d'assistance dans n'importe quel contrôleur

//view 
 @Html.ActionLink("Export to Excel", "Excel")

//controller Action
public void Excel()
{
    var model = db.GetModel()

    Export export = new Export();
    export.ToExcel(Response, model);
}

//helper class
public class Export
{        public void ToExcel(HttpResponseBase Response, object clientsList)
    {
        var grid = new System.Web.UI.WebControls.GridView();
        grid.DataSource = clientsList;
        grid.DataBind();
        Response.ClearContent();
        Response.AddHeader("content-disposition", "attachment; filename=FileName.xls");
        Response.ContentType = "application/Excel";
        StringWriter sw = new StringWriter();
        HtmlTextWriter htw = new HtmlTextWriter(sw);

        grid.RenderControl(htw);
        Response.Write(sw.ToString());
        Response.End();
    }
}
8
Moji

Étape 1: Afficher le code de la page

<input type="button" id="btnExport" value="Export" class="btn btn-primary" />
<script>
  $(document).ready(function () {

 $('#btnExport').click(function () {          

  window.location = '/Inventory/ExportInventory';

        });
});
</script>

Étape 2: Code du contrôleur

  public ActionResult ExportInventory()
        {
            //Load Data
            var dataInventory = _inventoryService.InventoryListByPharmacyId(pId);
            string xml=String.Empty;
            XmlDocument xmlDoc = new XmlDocument();

            XmlSerializer xmlSerializer = new XmlSerializer(dataInventory.GetType());

            using (MemoryStream xmlStream = new MemoryStream())
            {
                xmlSerializer.Serialize(xmlStream, dataInventory);
                xmlStream.Position = 0;
                xmlDoc.Load(xmlStream);
                xml = xmlDoc.InnerXml;
            }

            var fName = string.Format("Inventory-{0}", DateTime.Now.ToString("s"));

            byte[] fileContents = Encoding.UTF8.GetBytes(xml);

            return File(fileContents, "application/vnd.ms-Excel", fName);
        }
7
vineet230
  using (MemoryStream mem = new MemoryStream())
  {
    SpreadsheetDocument spreadsheetDocument = SpreadsheetDocument.Create(mem, SpreadsheetDocumentType.Workbook);

    // Add a WorkbookPart to the document.
    WorkbookPart workbookpart = spreadsheetDocument.AddWorkbookPart();
    workbookpart.Workbook = new Workbook();

    // Add a WorksheetPart to the WorkbookPart.
    WorksheetPart worksheetPart = workbookpart.AddNewPart<WorksheetPart>();
    worksheetPart.Worksheet = new Worksheet(new SheetData());

    // Add Sheets to the Workbook.
    Sheets sheets = spreadsheetDocument.WorkbookPart.Workbook.AppendChild<Sheets>(new Sheets());

    SheetData sheetData = worksheetPart.Worksheet.GetFirstChild<SheetData>();

    // Add a row to the cell table.
    Row row;
    row = new Row() { RowIndex = 1 };
    sheetData.Append(row);

    // In the new row, find the column location to insert a cell in A1.  
    Cell refCell = null;
    foreach (Cell cell in row.Elements<Cell>())
    {
      if (string.Compare(cell.CellReference.Value, "A1", true) > 0)
      {
        refCell = cell;
        break;
      }
    }

    // Add the cell to the cell table at A1.
    Cell newCell = new Cell() { CellReference = "A1" };
    row.InsertBefore(newCell, refCell);

    // Set the cell value to be a numeric value of 100.
    newCell.CellValue = new CellValue("100");
    newCell.DataType = new EnumValue<CellValues>(CellValues.Number);

    // Append a new worksheet and associate it with the workbook.
    Sheet sheet = new Sheet()
    {
      Id = spreadsheetDocument.WorkbookPart.GetIdOfPart(worksheetPart),
      SheetId = 1,
      Name = "mySheet"
    };

    sheets.Append(sheet);

    workbookpart.Workbook.Save();
    spreadsheetDocument.Close();

    return File(mem.ToArray(), System.Net.Mime.MediaTypeNames.Application.Octet, "text.xlsx");
  }
4
Konstantin Kuznetsov

Je l'ai déjà fait auparavant, je pense que vous devez supprimer ActionResult. Faites un vide et supprimez la vue retour (MyView). c'est la solution

4
ubahjohn

J'ai utilisé une liste dans ma classe de contrôleur pour définir les données en vue grille. Le code fonctionne bien pour moi:

public ActionResult ExpExcl()
{
  List<PersonModel> person= new List<PersonModel>
   { 
    new PersonModel() {FirstName= "Jenny", LastName="Mathew", Age= 23},
    new PersonModel() {FirstName= "Paul", LastName="Meehan", Age=25}
   };
   var grid= new GridView();
   grid.DataSource= person;
   grid.DataBind();

   Response.ClearContent();
   Response.AddHeader("content-disposition","attachement; filename=data.xls");
   Response.ContentType="application/Excel";
   StringWriter sw= new StringWriter();
   HtmlTextWriter htw= new HtmlTextWriter(sw); 
   grid.RenderControl(htw);
   Response.Output.Write(sw.ToString());
   Response.Flush();
   Response.End();
   return View();
 }
1
Payel Dey