Comments on System.What?: ASP.NET Application Code Into SharePoint: The User...

Hey Ernesto, Thanks for the feedback. The issue y...

2010-04-07T16:28:05.287-07:00

Hey Ernesto,

Thanks for the feedback. The issue you're running into isn't really because the assembly needs to be strong named and added to the GAC (although that will fix it).

The issue you're running into is that you're trying to make calls from code which require Code Access Security levels higher than sock SharePoint allows.

Your control works out of Visual Studio and a normal website because those are running your code in FullTrust. In SharePoint you're running under WSS_Minimal and so unless your code is either:

1) GAC'd (which will allow your code to run in full trust).
2) Called out by a custom CAS policy to run in full trust (a preferred approach).
3) Or you've set all of SharePoint to run in FullTrust (dangerous and against best practices).

You'll run into CAS exceptions when you try to access the disk make web calls etc...

A good breakdown of the difference between FullTrust and WSS_Minimal and CAS can be found here:
http://blog.tylerholmes.com/2008/10/don-set-your-sharepoint-app-to-full.html

My Best,
Tyler

Hi Tyler! Thaks, ur code was great and usefull. No...

2010-04-06T23:49:31.677-07:00

Hi Tyler! Thaks, ur code was great and usefull. Now i wanna to tell you about a issue working whit the dll's:

When you put a dll into the \Bin directory of the app, the respective UserControl works fine whit simple actions and routines, like value asignations (TextBox1.Text = "Hi"), lops, varible asignations, calc...

But there is a trouble when you try to call System routines, like user query, file writting, sql conecctions, etc. And that only happend when the UserControl is published and runing from SharePoint, not in Visual Studio or Visual Web Developer Env, in these software goes fine!

However, back in SharePoint, the user control produces Security Exceptions (And only u see that if the app web.config allows thtat!, in other case u nerver knows what happen wrong!!)

Well that happen becouse the dll file must be registered in the GAC to work fine whit SharePoint. once the dlls have registered in the GAC will works fine whit MOSS.

Search info about the 'sn' and 'gacutil' commands, are part of .NET Sdk for Windows.

That was it! I had to change my permissions to &qu...

2009-08-04T15:21:22.671-07:00

That was it! I had to change my permissions to "contribute" for this to work properly, the "read" permissions were not enough to enable me to view the web parts.

Thanks
David

Hey David, For a user to access the page they'...

2009-08-04T12:54:07.265-07:00

Hey David,

For a user to access the page they'll need access to all server side components of it. This means they'll need read access to the MasterPage gallery for master pages and page layouts, access to the page itself (which is probably inside some Pages library), and access to the user control itself (which may be on disk).

I'd slowly document and elevate user privileges in these areas and see how far you get. Remember that out of the box a publishing site typically has special security settings on the Master Page gallery (the inheritance is often broken at the list level.).

I'd start looking for missing permissions there.

Best,
Tyler

Tyler, One more question: What Sharepoint permissi...

2009-08-04T12:11:13.572-07:00

Tyler,
One more question: What Sharepoint permissions are required to be able to view this application code? I've run into an issue where I can view deployed application code as a Site Collection Administrator, but cannot view it as a contributor or a user with limit access. Here's a list of the possible permissions: http://office.microsoft.com/en-us/sharepointtechnology/HA101001491033.aspx

If you could point me in the right direction for where to go to setup the permissions properly I'd appreciate it. Am I on the right track thinking to either:
1. Change the permissions the control in _catalogs/masterpages?
2. Change the permissions for the "[sharepoint homepage]/Pages" directory?

Tyler, Thanks for your help! It has appeared to wo...

2009-06-08T07:57:00.166-07:00

Tyler,
Thanks for your help! It has appeared to work quite well!

For anyone else struggling with this issue, I'd replace Tyler's step of
"4. Create an instance of the page. Site Actions->Create Page->Pick the Page "(Page)Hello World" and give it a name->Create. You're done!"
With the steps under "Create a publishing page from your new page layout" from the link he mentioned above.
http://office.microsoft.com/en-us/sharepointdesigner/HA101741281033.aspx

Thanks again!

Hey David, Don't worry if SharePoint Designer...

2009-06-06T18:53:24.220-07:00

Hey David,

Don't worry if SharePoint Designer doesn't find the file right away, the program is a little finicky when it comes to recognizing resources. I'd just run your page and see if the .NET runtime can find your control. This brings us to your 2nd problem.

I'd recommend practicing creating a page layout in of itself since it's a useful skill. Once you have that down circle back and try to embed a user control in it.

You can create the page layout and instances of the page layout first. After you add the user control all instances of that page layout will also have your control.

Instructions can be found here:

http://office.microsoft.com/en-us/sharepointdesigner/HA101741281033.aspx

Best,
Tyler

Thanks for the instructions! I've had some iss...

2009-06-05T11:12:06.157-07:00

Thanks for the instructions! I've had some issues in "Create A Page Layout", step 3:
After I "Replace the page with the following markup." as you instruct, in Sharepoint Designer HelloWorld.aspx in the design window I see an error message displaying the following:

Error Rendering Control - Unnamed1The file '~/PageLayoutUserControls/HelloUser.ascx' was not found.

I confirmed I added the HelloUser into the PageLayoutUserControls\ directory under "C:\Inetpub\wwwroot\wss\VirtualDirectories\80\PageLayoutUserControls". I also could not follow the final step you list: "Create an instance of the page. Site Actions->Create Page->Pick the Page "(Page)Hello World" and give it a name->Create. You're done!"

If I go to Site Actions -> Create Page I don't see any "Hello World" under any of the Page options. I only see the following options:
Basic Page
Web Part Page
Sites and Workspaces

None of the info in any of those links links to the Hello World.

The directions so far look great, any help to resolve this problem would be greatly appreciated!

Sure can.

2008-11-04T12:06:00.000-08:00

Sure can.

Can the user control contain binding expressions d...

2008-11-03T13:44:00.000-08:00

Can the user control contain binding expressions doing things this way?