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Exportieren von Daten in eine Excel-Datei mit ASP.NET MVC 4 C # wird angezeigt

Ich habe Probleme beim Exportieren von Daten nach Excel. Das Folgende scheint die Rasteransicht in meine Ansicht zu rendern, anstatt den Benutzer zum Öffnen mit Excel aufzufordern, das ich auf meinem Computer installiert habe.

 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"); 
}

Was mache ich falsch?

33
duyn9uyen

Ich habe Ihren Code ausprobiert und es funktioniert einwandfrei. Die Datei wird ohne Probleme erstellt. Dies ist der Code, den ich verwendet habe (es ist Ihr Code, ich habe gerade die Datenquelle zum Testen geändert):

    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

Sie können die Hilfsklasse in jedem Controller aufrufen

//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

Schritt 1 : Seitencode anzeigen

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

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

  window.location = '/Inventory/ExportInventory';

        });
});
</script>

Schritt 2 : Controller-Code

  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");
  }

Ich habe das schon einmal gemacht, ich denke, Sie müssen das ActionResult entfernen. Machen Sie es ungültig und entfernen Sie die Rückgabeansicht (MyView). Das ist die Lösung

4
ubahjohn

Ich habe eine Liste in meiner Controller-Klasse verwendet, um Daten in der Rasteransicht festzulegen. Der Code funktioniert gut für mich:

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