FileUpload Control & Image Control

[eamon]

I would like to know if there is an eventhandler that i can use in order to
get an image in the image control from the file upload without having use a
button or is there a way i can get a thumbnail from the fileupload control?

Please help got a deadline and my boss is checking up on me frequently/
Thank You all

Eamon

 

[Steve C. Orr [MVP, MCSD]]

You can resize the image using the GetThumbnailImage method.
Here's more info:
http://msdn.microsoft.com/library/d...emDrawingImageClassGetThumbnailImageTopic.asp

Or maybe you'll find these custom functions I wrote to be useful:

public Image DisplaySize(Bitmap bmp)
{
Response.Write(bmp.Width.ToString());
Response.Write(bmp.Height.ToString());
}

//shrink the image proportionately so that neither height nor width is
//more than [NewSize] pixels

public System.Drawing.Image ShrinkImage(System.Drawing.Bitmap bmp, int
NewSize)

{

double NewWidth;

double NewHeight;

double ShrinkPercent;

System.Drawing.Image.GetThumbnailImageAbort myCallback =

new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);

if (bmp.Width>bmp.Height)

{

NewWidth=NewSize;

ShrinkPercent=(NewWidth/bmp.Width)*100;

NewHeight=(ShrinkPercent/100)*bmp.Height;

}

else

{

NewHeight=NewSize;

ShrinkPercent=(NewHeight/bmp.Height)*100;

NewWidth=(ShrinkPercent/100)*bmp.Width;

}

System.Drawing.Image myShrunkenImage =
bmp.GetThumbnailImage((int)NewWidth,(int)NewHeight,myCallback,IntPtr.Zero);

return myShrunkenImage;

}

public bool ThumbnailCallback(){return false;}

 

[eamon]

Can anyone convert this code into VB for me please my project isn't compling
the one below because im using VB.

You can resize the image using the GetThumbnailImage method.
Here's more info:
http://msdn.microsoft.com/library/d...emDrawingImageClassGetThumbnailImageTopic.asp

Or maybe you'll find these custom functions I wrote to be useful:

public Image DisplaySize(Bitmap bmp)
{
Response.Write(bmp.Width.ToString());
Response.Write(bmp.Height.ToString());
}

//shrink the image proportionately so that neither height nor width is
//more than [NewSize] pixels

public System.Drawing.Image ShrinkImage(System.Drawing.Bitmap bmp, int
NewSize)

{

double NewWidth;

double NewHeight;

double ShrinkPercent;

System.Drawing.Image.GetThumbnailImageAbort myCallback =

new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);

if (bmp.Width>bmp.Height)

{

NewWidth=NewSize;

ShrinkPercent=(NewWidth/bmp.Width)*100;

NewHeight=(ShrinkPercent/100)*bmp.Height;

}

else

{

NewHeight=NewSize;

ShrinkPercent=(NewHeight/bmp.Height)*100;

NewWidth=(ShrinkPercent/100)*bmp.Width;

}

System.Drawing.Image myShrunkenImage =
bmp.GetThumbnailImage((int)NewWidth,(int)NewHeight,myCallback,IntPtr.Zero);

return myShrunkenImage;

}

public bool ThumbnailCallback(){return false;}

I would like to know if there is an eventhandler that i can use in order to
get an image in the image control from the file upload without having use
a
button or is there a way i can get a thumbnail from the fileupload
control?

Please help got a deadline and my boss is checking up on me frequently/
Thank You all

Eamon