I am not moving on to another book! hehehe

I have added the files SimpleCalculator.aspx and SimpleCalculator.aspx.cs to the usercontrols folder. All functions as I would expect until I actually add the webpart.

Then Sharepoint gets REALLY mad and gives me a screen that allows me to delete the webpart. It is really quite surprising how well it deals with this error.

Did anyone else get this error?

  RJ

I haven't given up either....yet.

Obviously we have to make the Simple calculator dll available to the site to make the user control work. Would adding it to the GAC make it happen? My hope is yes. Still trying to figure out how to do that.

When I use the web part sharepoint extension it deploys the wrapper dll to the GAC and modifies the web config all for me so for the user control I've got to figure out how to strongly sign a dll and add it to the GAC and then maybe it will work?

Alright a tad frustrated now.

Got my SimpleCalculator.ascx in my usercontrols folder and went back and added strong signing to the control, rebuilt, copied the dll to the GAC in c:\windows\assemblies got the public key from that dll's properties went to the web.config and added a line to the 'safecontrol' with the appropriate namespace, public key, etc. - and lo and behold still a parser error that says "could not load type 'SimpleCalculator.SimpleCalculator'", alas this is discouraging.

Alright good news.

It appears all you need to do is copy the SimpleCalculator dll from your project folder to the bin directory in you site directory. I don't even think you need an additional line in the web.config which is confusing to me bc I thought IIS would execute any code it didn't deem as safe in the web.config. I don't even know if signing is necessary.

As far as the GAC is concerned, my guess is that the server reference at the top of the ascx file would need to point to somewhere else that tells it the DLL is in the GAC, it doesn't appear to automatically look there by default. Hope that helps.