FileUpload FieldTemplate not working.

Question

User-1759624489 posted

Helloo I need to upload files and save the docuemnt path only.

 

I created File.ascx and File.ascx.cs

I also Created File_edit.ascx and File_Edit.ascx.cs

 

In GridView Mode, i want to show an hyperlink so they can see the file, in edit mode, it has to show the fileupload control.

 

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="File.ascx.cs" Inherits="File" %>
<asp:HyperLink ID="HyperLink1" runat="server"  NavigateUrl="<%# GetContract(FieldValueString) %>"></asp:HyperLink>

 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class File : System.Web.DynamicData.FieldTemplateUserControl
{
    public override Control DataControl
    {
        get
        {
            return HyperLink1;
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
      
    }

    protected  string  GetContract(string filename)
    {
        HyperLink1.NavigateUrl = filename;
        HyperLink1.Text = "Ver Archivo";
        return HyperLink1.NavigateUrl;
    }
}

 

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="File_Edit.ascx.cs" Inherits="FileEdit" %>
<asp:FileUpload ID="FileUploadEdit" runat="server" Visible="false" /><asp:CustomValidator
    ID="CustomValidator1" runat="server" ErrorMessage="CustomValidator"></asp:CustomValidator>

 

using System;
using System.Collections.Specialized;
using System.IO;
using System.Linq;
using System.Web.DynamicData;
using System.Web.UI;
using System.Web.UI.WebControls;
using Microsoft.Web.DynamicData;
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;


public partial class FileEdit : FieldTemplateUserControl

{
    protected void Page_Load(object sender, EventArgs e)
    {
      
        //CustomValidator1.ServerValidate += new ServerValidateEventHandler(CustomValidator1_ServerValidate);
       
    }

    protected override void ExtractValues(IOrderedDictionary dictionary)
    {
        // get Edit type Select or Upload
       
        string    imagesDir = "~/Contracts";

        // resolve full path c:\... etc
        String path = Server.MapPath(imagesDir);

        // get files extension without the dot
        String fileExtension = FileUploadEdit.FileName.Substring(FileUploadEdit.FileName.LastIndexOf(".") + 1).ToLower();

        // get allowed extensions
        String[] allowedExtensions = {"pdf"};

            if (allowedExtensions.Contains(fileExtension))
            {
                // try to upload the file showing error if it fails
                try
                {
                    FileUploadEdit.PostedFile.SaveAs(path + "\\" + FileUploadEdit.FileName);
                    //ImageEdit.ImageUrl = imagesDir + "/" + FileUploadEdit.FileName;
                    //ImageEdit.AlternateText = FileUploadEdit.FileName;
                    dictionary[Column.Name] = FileUploadEdit.FileName;
                }
                catch (Exception ex)
                {
                    // display error
                    CustomValidator1.IsValid = false;
                    CustomValidator1.ErrorMessage = ex.Message;
                    dictionary[Column.Name] = null;
                }
            }
        }
    }

 

Answer 1

User-1759624489 posted

Now, its showing the fileupload conttrol.

 

But I got another problem here

 

  protected override void ExtractValues(IOrderedDictionary dictionary)
    {
        string    imagesDir = "~/Contracts";

        // resolve full path c:\... etc
        String path = Server.MapPath(imagesDir);

        // get files extension without the dot
        String fileExtension = FileUploadEdit.FileName.Substring(FileUploadEdit.FileName.LastIndexOf(".") + 1).ToLower();

FileUploadEdit is empty, even if I select a file.

 

Why?

Answer 2

User188291263 posted

 Because of partial rendering in Ajax,turn it off for this page

Answer 3

User-1759624489 posted

How? The Ajax controls are on a master page not on this page

 

Thx

Answer 4

User188291263 posted

 you can turn off partial rendering per page.

Take a look at this solution,it uses iframe
http://geekswithblogs.net/rashid/archive/2007/08/01/Create-An-Ajax-Style-File-Upload.aspx

Answer 5

User-1759624489 posted

It doesnt say how to disable partial rendering in each page.

I dont use iframes ever.

Answer 6

User-1759624489 posted

I already disabled partial rendering on the page but it doesnt seem to work

 

PostedFile is null.

 

   protected override void ExtractValues(IOrderedDictionary dictionary)
    {
        string    imagesDir = "~/Contracts";

        // resolve full path c:\... etc
        String path = Server.MapPath(imagesDir);

        // get files extension without the dot
        String fileExtension = FileUploadEdit.FileName.Substring(FileUploadEdit.FileName.LastIndexOf(".") + 1).ToLower();

        // get allowed extensions
        String[] allowedExtensions = {"pdf"};

            if (allowedExtensions.Contains(fileExtension))
            {
                // try to upload the file showing error if it fails
                try
                {
                    FileUploadEdit.PostedFile.SaveAs(path + "\\" + FileUploadEdit.FileName);
                    //ImageEdit.ImageUrl = imagesDir + "/" + FileUploadEdit.FileName;
                    //ImageEdit.AlternateText = FileUploadEdit.FileName;
                    dictionary[Column.Name] = FileUploadEdit.FileName;
                }
                catch (Exception ex)
                {
                    // display error
                    CustomValidator1.IsValid = false;
                    CustomValidator1.ErrorMessage = ex.Message;
                    dictionary[Column.Name] = null;
                }
            }
        }
 

Answer 7

User188291263 posted

 Try to put control inside IFrame

Answer 8

User-1759624489 posted

 That wont work.

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="File_Edit.ascx.cs" Inherits="FileEdit" %>
<asp:FileUpload ID="myFile" runat="server" Visible="true"  /><asp:CustomValidator
    ID="CustomValidator1" runat="server" ErrorMessage="CustomValidator"></asp:CustomValidator>

 

It doesnt show

Answer 9

User-330204900 posted

Hi Lavalencia, Have you had a look at this article Dynamic Data: Part 2 - FileImage_Edit FieldTemplate of mine it does everything you want but works with images I'm sure it could be modified to do files and just show filename and a fieltype image

Answer 10

User-1759624489 posted

I used yours as an example. But I didnt copy all the code.

 

Just the extractvalues method

 

  protected override void ExtractValues(IOrderedDictionary dictionary)
    {
        string    imagesDir = "~/Contracts";

        // resolve full path c:\... etc
        String path = Server.MapPath(imagesDir);

        if (myFile.HasFile)
        {
            String fileExtension = myFile.FileName.Substring(myFile.FileName.LastIndexOf(".") + 1).ToLower();

            // get allowed extensions
            String[] allowedExtensions = { "pdf" };

            if (allowedExtensions.Contains(fileExtension))
            {
                // try to upload the file showing error if it fails
                try
                {
                    myFile.PostedFile.SaveAs(path + "\\" + myFile.FileName);
                    //ImageEdit.ImageUrl = imagesDir + "/" + FileUploadEdit.FileName;
                    //ImageEdit.AlternateText = FileUploadEdit.FileName;
                    dictionary[Column.Name] = myFile.FileName;
                }
                catch (Exception ex)
                {
                    // display error
                    CustomValidator1.IsValid = false;
                    CustomValidator1.ErrorMessage = ex.Message;
                    dictionary[Column.Name] = null;
                }
            }
        }
        }
    }

 

The problem is that its always returnin null in the PostedFile.

Answer 11

User-330204900 posted

I'm going to be busy earning some money for the next few days, but I will have alook at making a FileUpload FieldTemplate and posting it on my blog as soon as possible [:D]

Hope this helps [:D]

Answer 12

User-1759624489 posted

Hello. It worked after putting this code

 

    public static void DisablePartialRenderingForUpload(Page page, MetaTable table)
    {
        foreach (var column in table.Columns)
        {
            // TODO this depends on the name of the field template, need to fix
            if (String.Equals(column.UIHint, "DBImage", StringComparison.OrdinalIgnoreCase)
                || String.Equals(column.UIHint, "FileImage", StringComparison.OrdinalIgnoreCase))
            {
                var sm = ScriptManager.GetCurrent(page);
                if (sm != null)
                {
                    sm.EnablePartialRendering = false;
                }
                break;
            }
        }
    }
 

Answer 13

User-330204900 posted

Hi Levalencia, I've just posted a feature complete FileUpload FieldTemplate here on my blog :Dynamic Data: Part 3-FileUpload FieldTemplates

Hope this helps [:D]