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Set Image Control to Bitmap

 
 
MikeB
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Posts: n/a
 
      08-13-2007
Hello All, want to be able to pull images from the database and load them
into a bitmap through a stream which I have working. I then want to take
the bitmap and load it into a Image control without haveing to save the
bitmap as a file. Is this possible? Currently, I just display the bitmap
by calling Bitmap.save however, if users do not know to click the image they
can not see the full size. If I can create a bitmap from the stream I know
the size so I can set the properties of a image control and then display the
bitmap in the image. Does this make since or am I going about this the
wrong way? So in a nutshell, I am pulling images from a DB and want to
display the full size without having to actuall save the image to a file.
Any pointers?

TIA


 
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George Ter-Saakov
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      08-13-2007
You can make an mypage.aspx page that returns bitmap (not HTML)
1. You need to set ContentType = "img/gif"; or (jpg)
2. You need to set ContentLength to the size of the image
3. Use Response.BinaryWrite to output the image. Or since Response is a
Stream you can do Bitmap.Save(Response);

in your HTML you write <img src="mypage.aspx">


PS: It's more efficient to use handler for that task. mypage.ashx. But aspx
will work too if you fill more comfortable with aspx.

George.



"MikeB" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello All, want to be able to pull images from the database and load them
> into a bitmap through a stream which I have working. I then want to take
> the bitmap and load it into a Image control without haveing to save the
> bitmap as a file. Is this possible? Currently, I just display the bitmap
> by calling Bitmap.save however, if users do not know to click the image
> they can not see the full size. If I can create a bitmap from the stream
> I know the size so I can set the properties of a image control and then
> display the bitmap in the image. Does this make since or am I going about
> this the wrong way? So in a nutshell, I am pulling images from a DB and
> want to display the full size without having to actuall save the image to
> a file. Any pointers?
>
> TIA
>



 
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Steve C. Orr [MCSD, MVP, CSM, ASP Insider]
Guest
Posts: n/a
 
      08-13-2007
Your page can have an Image control on it, and that Image control can point
to another page (or handler) that retrieves the image.
Here are the details:
http://SteveOrr.net/articles/ImproveYourImages.aspx
http://dotnetslackers.com/articles/a...ileDenial.aspx

--
I hope this helps,
Steve C. Orr,
MCSD, MVP, CSM, ASPInsider
http://SteveOrr.net



"MikeB" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello All, want to be able to pull images from the database and load them
> into a bitmap through a stream which I have working. I then want to take
> the bitmap and load it into a Image control without haveing to save the
> bitmap as a file. Is this possible? Currently, I just display the bitmap
> by calling Bitmap.save however, if users do not know to click the image
> they can not see the full size. If I can create a bitmap from the stream
> I know the size so I can set the properties of a image control and then
> display the bitmap in the image. Does this make since or am I going about
> this the wrong way? So in a nutshell, I am pulling images from a DB and
> want to display the full size without having to actuall save the image to
> a file. Any pointers?
>
> TIA
>


 
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=?Utf-8?B?UGV0ZXIgQnJvbWJlcmcgW0MjIE1WUF0=?=
Guest
Posts: n/a
 
      08-14-2007
Here is a way to do this without relying on an external handler such as
another page:

http://www.eggheadcafe.com/articles/20050911.asp

-Peter
Recursion: see Recursion
site: http://www.eggheadcafe.com
unBlog: http://petesbloggerama.blogspot.com
BlogMetaFinder: http://www.blogmetafinder.com



"MikeB" wrote:

> Hello All, want to be able to pull images from the database and load them
> into a bitmap through a stream which I have working. I then want to take
> the bitmap and load it into a Image control without haveing to save the
> bitmap as a file. Is this possible? Currently, I just display the bitmap
> by calling Bitmap.save however, if users do not know to click the image they
> can not see the full size. If I can create a bitmap from the stream I know
> the size so I can set the properties of a image control and then display the
> bitmap in the image. Does this make since or am I going about this the
> wrong way? So in a nutshell, I am pulling images from a DB and want to
> display the full size without having to actuall save the image to a file.
> Any pointers?
>
> TIA
>
>
>

 
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MikeB
Guest
Posts: n/a
 
      08-15-2007
Thanks everyone for the replies.

"MikeB" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Hello All, want to be able to pull images from the database and load them
> into a bitmap through a stream which I have working. I then want to take
> the bitmap and load it into a Image control without haveing to save the
> bitmap as a file. Is this possible? Currently, I just display the bitmap
> by calling Bitmap.save however, if users do not know to click the image
> they can not see the full size. If I can create a bitmap from the stream
> I know the size so I can set the properties of a image control and then
> display the bitmap in the image. Does this make since or am I going about
> this the wrong way? So in a nutshell, I am pulling images from a DB and
> want to display the full size without having to actuall save the image to
> a file. Any pointers?
>
> TIA
>



 
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