Web Service Guidlines for uploading data?

[AaronL]

I'm writing a web service in VB.Net 2005. It uploads some data from the
client to the server. One such function uploads image data as a byte array
parammetter. It works ok for small images. And fails instantly in the IDE
(with both server and client projects local in the same solution) for a 3MB
image in that byte array. The underlynning error message is: "The underlying
connection was closed: An unexpected error occurred on a receive. "

Now obviously there is some kind of limitation and I should stream it in
chunks. However before I do this I want to know exactly what kind of
limitations there are?
What are the optimal chunks sizes for Web Service?

So far I haven't found anything useful on MSDN for this. Anyone have any
suggestions?

[AaronL]

I found about the <httpRuntime maxRequestLength="4096" /> property for the
web.config. Steping into the web service hides the real error and that was
where I was going wrong. (And in this case I reprocess the image to a jpeg
and limit it to 2MB.)

"AaronL" wrote:

I'm writing a web service in VB.Net 2005. It uploads some data from the
client to the server. One such function uploads image data as a byte array
parammetter. It works ok for small images. And fails instantly in the IDE
(with both server and client projects local in the same solution) for a 3MB
image in that byte array. The underlynning error message is: "The underlying
connection was closed: An unexpected error occurred on a receive. "

Now obviously there is some kind of limitation and I should stream it in
chunks. However before I do this I want to know exactly what kind of
limitations there are?
What are the optimal chunks sizes for Web Service?

So far I haven't found anything useful on MSDN for this. Anyone have any
suggestions?