Resizing an image

[meckeard]

Hi all,

I'm trying to get set the height and width of an image control using the following but it's not working:

imgItemImage.ImageUrl = ("images/NoImage.jpg")
imgItemImage.Height.Equals(50)
imgItemImage.Width.Equals(50)

What am I doing wrong?

Thanks!

 

[ca8msm]

Using the Height and Width properties will return the dimensions of the Image control. Is that whay you want?


-------------------------------------------------------

Mark,
[URL unfurl="true"]http://aspnetlibrary.com[/url]
[URL unfurl="true"]http://mdssolutions.co.uk[/url] - Delivering professional ASP.NET solutions
[URL unfurl="true"]http://weblogs.asp.net/marksmith[/url]

 

[meckeard]

I'll actually need that to determine the new height and width. But it wasn't what I was trying to achieve with my code sample above.

I'll need to reduce an image size in half, so I need to set the height and width properties. Something like this:

'Get the current height and width in to var's.
Dim intHeight = imgItemImage.Item.Height
Dim intWidth = imgItemImage.Item.Width

'Set the new H & W
imgItemImage.Item.Height = intHeight/2
imgItemImage.Item.Width = intWidth/2

Onviously that's not the correct syntax but it's what I'm trying to achieve.

Thanks.

 

[ca8msm]

And where is this image located? Locally or on a website?


-------------------------------------------------------

Mark,
[URL unfurl="true"]http://aspnetlibrary.com[/url]
[URL unfurl="true"]http://mdssolutions.co.uk[/url] - Delivering professional ASP.NET solutions
[URL unfurl="true"]http://weblogs.asp.net/marksmith[/url]

 

[meckeard]

The site, pages and images will all be on an internal web server.

The web address for the site would be similar to

http://server1/auction

and there would be a directory called "images" within the root (

http://server1/auction/images/).

 

[tperri]

here is some sample code from a page I coded that uses the FileUpload control (fuPhoto)

if (fuPhoto.PostedFile != null && fuPhoto.PostedFile.FileName != string.Empty) //Checking for valid file
        {

            System.Drawing.Image UploadedImage = System.Drawing.Image.FromStream(fuPhoto.PostedFile.InputStream);

            float UploadedImageWidth = UploadedImage.PhysicalDimension.Width;
            float UploadedImageHeight = UploadedImage.PhysicalDimension.Height;

            float NewImageWidth = UploadedImageWidth;
            float NewImageHeight = UploadedImageHeight;

            bool bResize = false;

            // Since the PostedFile.FileNameFileName gives the entire path we use Substring function to rip of the filename alone.
            string StrFileName = fuPhoto.PostedFile.FileName.Substring(fuPhoto.PostedFile.FileName.LastIndexOf("\\") + 1);
            string StrFileType = fuPhoto.PostedFile.ContentType;
            int IntFileSize = fuPhoto.PostedFile.ContentLength;
            //Checking for the length of the file. If length is 0 then file is not uploaded.

            if (IntFileSize <= 0)
            {
                //lblMessage.Text=" <font color='Red' size='2'>Uploading of file " + StrFileName + " failed </font>";
            }
            else
            {
                string strCompleteFilePath = Server.MapPath(".\\images\\uploaded\\" + "UserID" + iUserID + StrFileName);
                fuPhoto.PostedFile.SaveAs(strCompleteFilePath);
            }

etc....