Support forums - Dimensions of uploaded image files

Dimensions of uploaded image files

Last post 09-03-2009, 6:12 AM by jgra. 2 replies.


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I need to get the dimensions of image files uploaded via the ajaxuploader.

Is there any class that will help me do that?

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JG,

Please check this code :

<%@ Page Language="C#" Title="First sample" %>
<%@ Import Namespace="CuteWebUI" %>
<%@ Register TagPrefix="CuteWebUI" Namespace="CuteWebUI" Assembly="CuteWebUI.AjaxUploader" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Frameset//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-frameset.dtd">
<script runat="server">
void InsertMsg(string msg)
{
ListBoxEvents.Items.Insert(0, msg);
ListBoxEvents.SelectedIndex = 0;
}
protected void UploadAttachments1_FileUploaded(object sender, UploaderEventArgs args)
{
//must copy the stream to MemoryStream, otherwise the stream may be locked by Image object
byte[] data = new byte[args.FileSize];
using (Stream stream = args.OpenStream())
{
stream.Read(data, 0, args.FileSize);
}
System.Drawing.Image img=null;
try
{
img = System.Drawing.Image.FromStream(new MemoryStream(data));
}
catch
{
}
if (img == null)
{
InsertMsg("What you uploaded is not a image");
}
else
{
InsertMsg("You have uploaded a image : " + img.Width + "x" + img.Height);
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
</head>
<body>
<form id="Form1" runat="server">
<CuteWebUI:UploadAttachments runat="server" ID="UploadAttachments1" OnFileUploaded="UploadAttachments1_FileUploaded">
</CuteWebUI:UploadAttachments>
<br />
<div>
Server Trace:
<br />
<asp:ListBox runat="server" ID="ListBoxEvents" Width="800"></asp:ListBox>
</div>
</form>
</body>
</html>

Regards,
Terry

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That'll work!

Thanks