? I am using ASP.NET 3.5 C # and I would like to get an image that t...">
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Loading an image and fixing / improving its size with <input type = "file">?

I am using ASP.NET 3.5 C # and I would like to get an image that the user is trying to load from

<input type="file" name="uploadPicture" id="uploadPicture"> Can I just use:

Request.Form["uploadPicture"];

What's next?

I never played with uploading files using forms, I want to save this file in my File system and save the database path.

I also need to check the format, size and sizes and maybe even resize if possible.

Thanks Dan

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2 answers

Check the following code

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default7.aspx.cs" Inherits="Default7" %>

<!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></title>
</head>
<body>
    <form id="form1" runat="server" enctype="multipart/form-data">
    <div>
        <input type="file" name="uploadPicture" id="uploadPicture">
    </div>
    <asp:Button ID="Button1" runat="server" onclick="Button1_Click" Text="Upload" />
    </form>
</body>
</html>

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

public partial class Default7 : System.Web.UI.Page
{

    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        string baseImageLocation = Server.MapPath("Images\\");
        HttpFileCollection uploads = HttpContext.Current.Request.Files;

        HttpPostedFile file = uploads["uploadPicture"];
        string fileExt = Path.GetExtension(file.FileName).ToLower();
        string fileName = Path.GetFileName(file.FileName);
        if (fileName != "")
        {
            if (fileExt == ".jpg" || fileExt == ".gif")
                file.SaveAs(baseImageLocation + fileName);

        }
    }
}

EDIT

you can get image size from HttpPostedFile as below

  int size = file.ContentLength;

and for the height and width of the image you can use the following function

 private void GetHeightAndWidht(string image)
    {
        Bitmap bmp = new Bitmap(image);
        int height = bmp.Height;
        int width = bmp.Width;
    }
0

HttpFileCollection files = Request.Files;
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