How should I store an image into my SQL database in order to be able to read
it using Reporting Services Image control? I have a table with an image
field (datatype of the field is 'Image').
I have tried several ways and the report is always rendered with the image
showing a red cross inside it (image broken). However if I read the table
using MS Access ADP and double click on the image field, MS Paint opens and
shows up the image (this is a bmp image). I have also set the MIMEType of
the rs image field to 'image/bmp' (filling this field this is compulsory
with database images).
It seems that, even though the database field contents ('Image' field) are
properly stored, Reporting Services does not know how to handle it. May I
need to do a CONVERT(Binary, MyImageField) or the database field be of
another type? How should I store the image inside the database so that RS
could read it?
Regards.
PS: This is RS SP2.This sounds like the images are stored as OLE images in the database (e.g.
Access would convert images into OLE images). You can try the following
expression to get rid of the OLE chunk:
=System.Convert.FromBase64String(Mid(System.Convert.ToBase64String(Fields!Picture.Value),
105))
--
This posting is provided "AS IS" with no warranties, and confers no rights.
"David Lightman Robles" <dlightman@.NOSPAMiname.com> wrote in message
news:e5gQDOJVFHA.584@.TK2MSFTNGP15.phx.gbl...
> How should I store an image into my SQL database in order to be able to
> read it using Reporting Services Image control? I have a table with an
> image field (datatype of the field is 'Image').
> I have tried several ways and the report is always rendered with the image
> showing a red cross inside it (image broken). However if I read the table
> using MS Access ADP and double click on the image field, MS Paint opens
> and shows up the image (this is a bmp image). I have also set the MIMEType
> of the rs image field to 'image/bmp' (filling this field this is
> compulsory with database images).
> It seems that, even though the database field contents ('Image' field) are
> properly stored, Reporting Services does not know how to handle it. May I
> need to do a CONVERT(Binary, MyImageField) or the database field be of
> another type? How should I store the image inside the database so that RS
> could read it?
> Regards.
> PS: This is RS SP2.
>|||Thanks for your reply but it seems that there should be another reason. Your
explanation is on the good road, but
I have tried your expression, with that 105 varying from 100 to 110 with the
same results. The red cross is still there.
Any other suggestion? Regards.
PS: Just for further debugging, I have an output of the first 950 bytes
generated by the expression:
=System.Convert.ToBase64String(Fields!Picture.Value)
Here they follow:
FRw5AAIAAAAXAA4AFAArAP////9JbWFnZW4gZGUgbWFwYSBkZSBiaXRzAFBhaW50LlBpY3R1cmUAAQUAAAIAAAAHAAAAUEJydXNoAAAAAAAAAAAAYEgAAEJNYEgAAAAAAAB2AAAAKAAAAM8AAACxAAAAAQAEAAAAAAAAAAAAEBcAABAXAAAAAAAAAAAAAAAAAAD///8A+vr6APPz8wDn5+cA29vbAMzMzAC5ubkAo6OjAIuLiwBzc3MAWVlZAEJCQgAvLy8AHx8fAA8PDwAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBEREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREQERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
"Robert Bruckner [MSFT]" <robruc@.online.microsoft.com> escribió en el
mensaje news:eL5pK2LVFHA.612@.TK2MSFTNGP12.phx.gbl...
> This sounds like the images are stored as OLE images in the database (e.g.
> Access would convert images into OLE images). You can try the following
> expression to get rid of the OLE chunk:
> =System.Convert.FromBase64String(Mid(System.Convert.ToBase64String(Fields!Picture.Value),
> 105))
> --
> This posting is provided "AS IS" with no warranties, and confers no
> rights.
> "David Lightman Robles" <dlightman@.NOSPAMiname.com> wrote in message
> news:e5gQDOJVFHA.584@.TK2MSFTNGP15.phx.gbl...
>> How should I store an image into my SQL database in order to be able to
>> read it using Reporting Services Image control? I have a table with an
>> image field (datatype of the field is 'Image').
>> I have tried several ways and the report is always rendered with the
>> image showing a red cross inside it (image broken). However if I read the
>> table using MS Access ADP and double click on the image field, MS Paint
>> opens and shows up the image (this is a bmp image). I have also set the
>> MIMEType of the rs image field to 'image/bmp' (filling this field this is
>> compulsory with database images).
>> It seems that, even though the database field contents ('Image' field)
>> are properly stored, Reporting Services does not know how to handle it.
>> May I need to do a CONVERT(Binary, MyImageField) or the database field be
>> of another type? How should I store the image inside the database so that
>> RS could read it?
>> Regards.
>> PS: This is RS SP2.
>|||More information on the subject:
I have been doing more tests with this sample bitmap. I have sent it to
myself via email just to read the source code of the message and extract the
base64 of the bitmap. The header of attachment and some hundreds the
begining bytes are here:
--_=_NextPart_001_01C55532.6E34D77F
Content-Type: image/bmp;
name="PHOTO.BMP"
Content-Transfer-Encoding: base64
Content-Disposition: attachment;
filename="PHOTO.BMP"
Qk1gSAAAAAAAAHYAAAAoAAAAzwAAALEAAAABAAQAAAAAAAAAAAAQFwAAEBcAAAAAAAAAAAAAAAAA
AP///wD6+voA8/PzAOfn5wDb29sAzMzMALm5uQCjo6MAi4uLAHNzcwBZWVkAQkJCAC8vLwAfHx8A
Dw8PABERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
EREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREQERERERER
ERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
ERERERERERERERERERERERERERERERERERERERERERERERERERERERARERERERERERERERERERER
ERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
EREREREREREREREREREREREREREREREREREREREREBERERERERERERERERERERERERERERERERER
ERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
etc...
If I copy this base64 chunk of data and set the Reporting Services image
field to:
=System.Convert.FromBase64String("the chunk")
The image is shown perfecly on the report.
However, if I compare some bytes of the begining of this chunk (which is
shown to be correct) and try to find it somewhere on the string returned by:
=System.Convert.ToBase64String(Fields!Picture.Value)
which is:
FRw5AAIAAAAXAA4AFAArAP////9JbWFnZW4gZGUgbWFwYSBkZSBiaXRzAFBhaW50LlBpY3R1cmUAAQUAAAIAAAAHAAAAUEJydXNoAAAAAAAAAAAAYEgAAEJNYEgAAAAAAAB2AAAAKAAAAM8AAACxAAAAAQAEAAAAAAAAAAAAEBcAABAXAAAAAAAAAAAAAAAAAAD///8A+vr6APPz8wDn5+cA29vbAMzMzAC5ubkAo6OjAIuLiwBzc3MAWVlZAEJCQgAvLy8AHx8fAA8PDwAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBEREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREQERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
I can't find it anywhere. There is no 'Qk1gS' substring in it. Now my
question are: Are there multiple ways of converting a file into a base64
string? How can I remove the OLE header of the database if I cannot find the
matching of the image REAL data using this 'comparing' approach?
Regards.
"David Lightman Robles" <dlightman@.NOSPAMiname.com> escribió en el mensaje
news:%23AtcAySVFHA.2124@.TK2MSFTNGP14.phx.gbl...
> Thanks for your reply but it seems that there should be another reason.
> Your explanation is on the good road, but
> I have tried your expression, with that 105 varying from 100 to 110 with
> the same results. The red cross is still there.
> Any other suggestion? Regards.
> PS: Just for further debugging, I have an output of the first 950 bytes
> generated by the expression:
> =System.Convert.ToBase64String(Fields!Picture.Value)
> Here they follow:
> FRw5AAIAAAAXAA4AFAArAP////9JbWFnZW4gZGUgbWFwYSBkZSBiaXRzAFBhaW50LlBpY3R1cmUAAQUAAAIAAAAHAAAAUEJydXNoAAAAAAAAAAAAYEgAAEJNYEgAAAAAAAB2AAAAKAAAAM8AAACxAAAAAQAEAAAAAAAAAAAAEBcAABAXAAAAAAAAAAAAAAAAAAD///8A+vr6APPz8wDn5+cA29vbAMzMzAC5ubkAo6OjAIuLiwBzc3MAWVlZAEJCQgAvLy8AHx8fAA8PDwAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBEREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREQERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
>
> "Robert Bruckner [MSFT]" <robruc@.online.microsoft.com> escribió en el
> mensaje news:eL5pK2LVFHA.612@.TK2MSFTNGP12.phx.gbl...
>> This sounds like the images are stored as OLE images in the database
>> (e.g. Access would convert images into OLE images). You can try the
>> following expression to get rid of the OLE chunk:
>> =System.Convert.FromBase64String(Mid(System.Convert.ToBase64String(Fields!Picture.Value),
>> 105))
>> --
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>> "David Lightman Robles" <dlightman@.NOSPAMiname.com> wrote in message
>> news:e5gQDOJVFHA.584@.TK2MSFTNGP15.phx.gbl...
>> How should I store an image into my SQL database in order to be able to
>> read it using Reporting Services Image control? I have a table with an
>> image field (datatype of the field is 'Image').
>> I have tried several ways and the report is always rendered with the
>> image showing a red cross inside it (image broken). However if I read
>> the table using MS Access ADP and double click on the image field, MS
>> Paint opens and shows up the image (this is a bmp image). I have also
>> set the MIMEType of the rs image field to 'image/bmp' (filling this
>> field this is compulsory with database images).
>> It seems that, even though the database field contents ('Image' field)
>> are properly stored, Reporting Services does not know how to handle it.
>> May I need to do a CONVERT(Binary, MyImageField) or the database field
>> be of another type? How should I store the image inside the database so
>> that RS could read it?
>> Regards.
>> PS: This is RS SP2.
>>
>|||Instead of doing tests with the final image, I have created a 5x5 pix bitmap
to work/test with.
The Base64 encoding of it (grabbed from an email sourcecode is):
Qk2GAAAAAAAAADYAAAAoAAAABQAAAAUAAAABABgAAAAAAFAAAAAAAAAAAAAAAAAAAAAAAAAA////////////////////AP///wAA/////////wAA/wD///////////////////8A////////AAD/////AAD/AAAA/////////////////wA=
It works perfectly if I set the value property of the rs image to:
=System.Convert.FromBase64String("the former base64 string")
Now, the database version of the same file: I set a texbox in the RS report
and set its value to =System.Convert.ToBase64String(Fields!Picture.Value) so
that I could retrieve the complete base64 of the image stored in the
database. Here it is:
FRw5AAIAAAAXAA4AFAArAP////9JbWFnZW4gZGUgbWFwYSBkZSBiaXRzAFBhaW50LlBpY3R1cmUAAQUAAAIAAAAHAAAAUEJydXNoAAAAAAAAAAAAoAAAAEJNhgAAAAAAAAA2AAAAKAAAAAUAAAAFAAAAAQAYAAAAAABQAAAAAAAAAAAAAAAAAAAAAAAAAP///////////////////wD///8AAP////////8AAP8A////////////////////AP///////wAA/////wAA/wAAAP////////////////8AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAABBQAAAAAAAIqtBf4=
By other means, I have been able to revert this base64 string back to binary
and here are the results:
9 + ÿÿÿÿImagen de mapa de bits Paint.Picture PBrush
BM? 6 ( P ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿ
ÿÿÿÿÿÿÿ ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ ÿÿÿÿÿÿ ÿÿÿÿ ÿ ÿÿÿÿÿÿÿÿÿÿÿÿÿ
S þ
Of course, I have some rubbish here. But not everything is lost: Now I can
see that a localized language string is included in the OLE chunk before the
'BM' indicating the begining of the bitmap file. And now the final question:
Should I use other string than
=System.Convert.FromBase64String(Mid(System.Convert.ToBase64String(Fields!Picture.Value),
105))
when the locale of the systems/servers/software is not english? In my case
I'm using spanish and since the string 'Imagen de mapa de bits' is not as
long as 'Bitmap image file', I think that 105 is not valid/correct when
other languages are used.
After some calculations I think that the OLE chunk size for spanish (which
is my case) is 121 instead of 105. However the red cross is still there!!!!!
:(((
Another aproach, instead of letting RS cropping the image ole data, is to
retrieve the image from the database without it. Is it feasible to retrieve
just a 'substring' of the image?
Please help. I really need it. Thaks.
"David Lightman Robles" <dlightman@.NOSPAMiname.com> escribió en el mensaje
news:%23AtcAySVFHA.2124@.TK2MSFTNGP14.phx.gbl...
> Thanks for your reply but it seems that there should be another reason.
> Your explanation is on the good road, but
> I have tried your expression, with that 105 varying from 100 to 110 with
> the same results. The red cross is still there.
> Any other suggestion? Regards.
> PS: Just for further debugging, I have an output of the first 950 bytes
> generated by the expression:
> =System.Convert.ToBase64String(Fields!Picture.Value)
> Here they follow:
> FRw5AAIAAAAXAA4AFAArAP////9JbWFnZW4gZGUgbWFwYSBkZSBiaXRzAFBhaW50LlBpY3R1cmUAAQUAAAIAAAAHAAAAUEJydXNoAAAAAAAAAAAAYEgAAEJNYEgAAAAAAAB2AAAAKAAAAM8AAACxAAAAAQAEAAAAAAAAAAAAEBcAABAXAAAAAAAAAAAAAAAAAAD///8A+vr6APPz8wDn5+cA29vbAMzMzAC5ubkAo6OjAIuLiwBzc3MAWVlZAEJCQgAvLy8AHx8fAA8PDwAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBEREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREQERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERAREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREREBERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERERER
>
> "Robert Bruckner [MSFT]" <robruc@.online.microsoft.com> escribió en el
> mensaje news:eL5pK2LVFHA.612@.TK2MSFTNGP12.phx.gbl...
>> This sounds like the images are stored as OLE images in the database
>> (e.g. Access would convert images into OLE images). You can try the
>> following expression to get rid of the OLE chunk:
>> =System.Convert.FromBase64String(Mid(System.Convert.ToBase64String(Fields!Picture.Value),
>> 105))
>> --
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>> "David Lightman Robles" <dlightman@.NOSPAMiname.com> wrote in message
>> news:e5gQDOJVFHA.584@.TK2MSFTNGP15.phx.gbl...
>> How should I store an image into my SQL database in order to be able to
>> read it using Reporting Services Image control? I have a table with an
>> image field (datatype of the field is 'Image').
>> I have tried several ways and the report is always rendered with the
>> image showing a red cross inside it (image broken). However if I read
>> the table using MS Access ADP and double click on the image field, MS
>> Paint opens and shows up the image (this is a bmp image). I have also
>> set the MIMEType of the rs image field to 'image/bmp' (filling this
>> field this is compulsory with database images).
>> It seems that, even though the database field contents ('Image' field)
>> are properly stored, Reporting Services does not know how to handle it.
>> May I need to do a CONVERT(Binary, MyImageField) or the database field
>> be of another type? How should I store the image inside the database so
>> that RS could read it?
>> Regards.
>> PS: This is RS SP2.
>>
>
