Upload and resize image.

Hi again,

And now we are face 2 face again, and now we'll upload a image to the server in desired size and resolution. here is the code for that.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
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.Collections.Generic;
using System.Data.Common;
using System.Data.SqlClient;
using Microsoft.Practices.EnterpriseLibrary.Data;
using Microsoft.Practices.EnterpriseLibrary.Data.Sql;
using System.Drawing;
using System.Drawing.Imaging;
using System.Drawing.Drawing2D;
using System.IO;

protected void Button1_Click(object sender, EventArgs e)
{
try
{
Boolean fileOK = false;
String path = Server.MapPath("~/Uploads/");
if (FileUpload1.HasFile)
{
String fileExtension = System.IO.Path.GetExtension(FileUpload1.FileName).ToLower();
String[] allowedExtensions = { ".gif", ".png", ".jpeg", ".jpg", ".bmp" };
for (int i = 0; i < allowedExtensions.Length; i++)
{
if (fileExtension == allowedExtensions[i])
{
fileOK = true;
}
}
}

if (fileOK)
{
UploadImage(FileUpload1);
}
else
{
Page.RegisterStartupScript("", "");
}
}
catch (Exception Ex)
{
throw Ex;
}
}
protected void UploadImage(FileUpload fileUploader)
{
try
{
if (fileUploader.HasFile)
{
int newX = 0, newY = 0;

int bmpH = 300;// //New Image target height
int bmpW = 300;// //New image target width

if (fileUploader.HasFile)
{
Random rnd = new Random();
Int32 i = rnd.Next();

String filePath = "Uploads/" + i + ".jpeg";

Bitmap upBmp = (Bitmap)Bitmap.FromStream(fileUploader.PostedFile.InputStream);

Decimal reDuce;

if (upBmp.Width > upBmp.Height)
{
reDuce = (Decimal)bmpW / (Decimal)upBmp.Width;

bmpH = ((Int32)(upBmp.Height * reDuce));
}
else
{
if (upBmp.Width < upBmp.Height)
{
reDuce = (Decimal)bmpH / (Decimal)upBmp.Height;

bmpW = ((Int32)(upBmp.Width * reDuce));
}
else
{
if (upBmp.Height == upBmp.Width)
{

reDuce = bmpH / upBmp.Height;

bmpW = ((Int32)((upBmp.Width * reDuce)));
}
}
}

Bitmap newBmp = new Bitmap(bmpW, bmpH, System.Drawing.Imaging.PixelFormat.Format24bppRgb);

newBmp.SetResolution(200, 200);

Graphics newGraphic = Graphics.FromImage(newBmp);
newGraphic.Clear(Color.Gray);
newGraphic.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
newGraphic.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
newGraphic.DrawImage(upBmp, newX, newY, bmpW, bmpH);
newBmp.Save(MapPath(filePath), System.Drawing.Imaging.ImageFormat.Jpeg);
}
}
}
catch (Exception Ex)
{
throw Ex;
}
}