Thursday 18 April 2013

How to upload PDF document in ASP.NET application


In Previous Articles i explained how to upload image into Database. In this article i explained How to upload pdf document with in asp.net application

Default.aspx


<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebTestSharp._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Web Barcode Reader Tester (C#)</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        Click browse button to upload a PDF document<br />
        <asp:FileUpload ID="FileUpload1" runat="server" /><br />
        <br />
        <asp:Button id="UploadButton" 
           Text="Upload file"
           OnClick="UploadButton_Click"
           runat="server">
       </asp:Button> 
        <br />
       <br />
        <asp:Label id="UploadStatusLabel" Text="" runat="server"></asp:Label> 
        <br />
        <asp:ListBox ID="ListBox1" runat="server" Visible="False"></asp:ListBox><br />
        <br />
        </div>
    </form>
</body>
</html>

===================================================================
VB.NET Code


Imports System.Drawing

Imports Bytescout.BarCodeReader


Public Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub UploadButton_Click(sender As Object, e As EventArgs)
Dim savePath As [String] = "\uploads\"

If FileUpload1.HasFile Then
Dim fileName As [String] = FileUpload1.FileName
savePath += fileName
FileUpload1.SaveAs(Server.MapPath(savePath))

            Dim barcodeReader As New Reader()

            ' reader.MediumTrustLevelCompatible = true ' uncomment this line to enable Medium Trust compatible mode (slows down the recognition process as direct image data access is disabled in Medium Trust mode)


            UploadStatusLabel.Visible = False
            ListBox1.Items.Clear()
            ListBox1.Visible = True

            ListBox1.Items.Add("Reading barcode(s) from PDF")

            Dim barcodes As FoundBarcode() = barcodeReader.ReadFrom(Server.MapPath(savePath))

            If barcodes.Length = 0 Then
                ListBox1.Items.Add("    No barcodes found")
            Else
                For Each barcode As FoundBarcode In barcodes
                    ListBox1.Items.Add([String].Format("    Found barcode with type '{0}' and value '{1}'", barcode.Type, barcode.Value))
                Next
            End If


        Else
            ' Notify the user that a file was not uploaded.
            UploadStatusLabel.Text = "You did not specify a file to upload."
        End If
End Sub
End Class
===================================================================
C#.NET Code



using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Drawing.Imaging;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Drawing;
using System.Collections.Generic;

using Bytescout.BarCodeReader;

namespace WebTestSharp
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void UploadButton_Click(object sender, EventArgs e)
        {
            String savePath = @"\uploads\";

            if (FileUpload1.HasFile)
            {
                String fileName = FileUpload1.FileName;
                savePath += fileName;
                FileUpload1.SaveAs(Server.MapPath(savePath));

Reader barcodeReader = new Reader();

            // reader.MediumTrustLevelCompatible = true; // uncomment this line to enable Medium Trust compatible mode (slows down the recognition process as direct image data access is disabled in Medium Trust mode)
UploadStatusLabel.Visible = false;

                    ListBox1.Items.Clear();
                    ListBox1.Visible = true;
ListBox1.Items.Add("Reading barcode(s) from image #" + imgNum);

FoundBarcode[] barcodes = barcodeReader.ReadFrom(savePath);

if (barcodes.Length == 0)
{
ListBox1.Items.Add("    No barcodes found");
}
else
{
foreach (FoundBarcode barcode in barcodes)
ListBox1.Items.Add(String.Format("Found barcode with type '{0}' and value '{1}'", barcode.Type, barcode.Value));
}

            }
            else
            {
                // Notify the user that a file was not uploaded.
                UploadStatusLabel.Text = "You did not specify a file to upload.";
            }
        }
    }
}

=====================================================================


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