Resize the Uploaded images

Question

I have one file uploader ....... Thats only (JPEG and PNG) only allowed.. And I want to resize the uploaded image ex::: Suppose my uploaded image Height:2000 and Width:2000 I want to change in Height:250 and Width:250 please help me...... Thanks!!!!!

Bikesh Srivastava · Answer

Hi Visit here. http://www.c-sharpcorner.com/blogs/resize-image-before-uploading1

Vishal Jadav · Answer

Hi, You can get the image bytes from the file upload and convert it to the image like byte[] ArrByte = FileUploadControl.FileBytes; System.Drawing.Image imgx = System.Drawing.Image.FromStream(new MemoryStream(ArrByte)); Now you can pass this imgx which is an image can be passed to this ScaleImage function which will then return scaled image and then you can save it to folder. If you have any doubt please let me know. hope it helps. Thanks. Cheers...

siva balan · Answer

Vishal Jadav sir where did i use your source i am already written source in button event protected void btnSubmit_Click(object sender, EventArgs e) { if(ful.PostedFile!=null) { string strpath = System.IO.Path.GetExtension(ful.FileName); if(strpath!=".jpg" && strpath!=".jpeg" && strpath!=".gif" && strpath!=".png") { lblError.ForeColor = System.Drawing.Color.Red; lblError.Text = "Only jpeg , png , gif file Allowed"; } else { string filename = Path.GetFileName(ful.PostedFile.FileName); ful.SaveAs(Server.MapPath("images/"+filename)); cmd.CommandText = "insert into tblProducts(ProductName,ProductDescription,ProductPrice,ProductPath,Productfilename) values (@pn,@pd,@pp,@ppath,@pfname) "; cmd.Connection = con; cmd.Parameters.AddWithValue("@pn",txtProductName.Text); cmd.Parameters.AddWithValue("@pd",txtProductDescription.Text); cmd.Parameters.AddWithValue("@pp",txtPrice.Text); cmd.Parameters.AddWithValue("@pfname",filename); cmd.Parameters.AddWithValue("@ppath","images/"+filename); con.Open(); cmd.ExecuteNonQuery(); con.Close(); clear(); lblError.ForeColor = System.Drawing.Color.Green; lblError.Text = "The Product details Added Successfully"; } } }

Vishal Jadav · Answer

Hi, Please try following code. Its from my source. public static System.Drawing.Image ScaleImage(System.Drawing.Image image, int maxHeight) { var ratio=( double )maxHeight/image.Height; var newWidth=( int )(image.Width*ratio); var newHeight=( int )(image.Height*ratio); var newImage= new Bitmap(newWidth,newHeight); using (var g=Graphics.FromImage(newImage)) { g.DrawImage(image,0,0,newWidth,newHeight); } return newImage; } Hope it helps. Thanks. Cheers...