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Subject:
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Image as web service parameter
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Posted By:
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rodmcleay
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Post Date:
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12/12/2005 12:56:33 AM
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Hi all,
When I add an image as the parameter to a web service I get the following error.
System.Drawing.Imaging.ImageFormat cannot be serialized because it does not have a parametless constructor.
How can I send an Image to the server as a web service parameter?
Any assistance would be greatly appreciated.
Rod
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They say, best men are molded out of faults,
And, for the most, become much more the better
For being a little bad.
======================================
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Reply By:
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Ankur_Verma
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Reply Date:
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12/12/2005 10:50:50 AM
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1) The class indeed doenst have a paramterless constructor- a default contructor.
2) The class is sealed i.e. not inheritable, which blocks a few possiblities that could be explored.
3) The class is not serializable, so I'm not sure if you can use it as a parameter in a webmethod, at all, i.e.
IF you are using it in a webmethod.
Regards
Ankur Verma
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Reply By:
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Ankur_Verma
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Reply Date:
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12/12/2005 11:06:24 AM
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If you are doing a usual image file transfer, then it shouldnt be an issue.
Check This link
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnwse/html/wsedime.asp
Regards
Ankur Verma
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Reply By:
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rodmcleay
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Reply Date:
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12/12/2005 9:17:43 PM
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Thanks Ankur,
I will look into that.
I guess it is just an image file transfer, I am sending a signature panel image from a pocket pc to the server.
Many Thanks,
Rod
======================================
They say, best men are molded out of faults,
And, for the most, become much more the better
For being a little bad.
======================================
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Reply By:
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rodmcleay
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Reply Date:
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12/13/2005 1:04:57 AM
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Hi again Ankur,
I have been looking into various area to get the job done without too much success.
Is it possible to programmatically send an MMS from Pocket PC Phone edition using C#?
I am still looking into the dime solution but I am finding it hard to transfer the information I find to the device environment at the moment, due to my lack of experience in this area.
Many thanks,
Rod
======================================
They say, best men are molded out of faults,
And, for the most, become much more the better
For being a little bad.
======================================
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Reply By:
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rodmcleay
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Reply Date:
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12/13/2005 5:11:42 AM
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I think I have solved my problem.
I have converted the image into a byte array and used that as the parameter for hte web service.
I haven't completed the web service component to test, but its looking better.
Thanks for your assistance.
Rod
======================================
They say, best men are molded out of faults,
And, for the most, become much more the better
For being a little bad.
======================================
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