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Temporary ASP.NET files not auto-updated when files change?

Hi,

We have an application that has been deployed into a virtual folder
along with ascx, aspx and the code-behind files. It runs smoothly as
long as we don't change any code-behind file. If we change a file, we
expect ASP .NET to recompile the website when a user next accesses it.
However, on next access the user gets the following error:

Description: An error occurred during the compilation of a resource
required to service this request. Please review the following specific
error details and modify your source code appropriately.

Compiler Error Message: BC30554: 'Parameter' is ambiguous.

Source Error:

Line 23: Dim db As Database = DatabaseFactory .CreateDatabase ()
Line 24: Dim cmd As System.Data.Com mon.DbCommand =
db.GetStoredPro cCommand(strPro cName)
Line 25: Dim param As Parameter
Line 26: For Each param In objPrameters
Line 27: db.AddInParamet er(cmd, param.Name, param.Type,
param.DefaultVa lue)
We know for sure that there is not syntax error in the changed code.
If we reset IIS and delete everything from "C:\WINDOWS\Mic rosoft.NET
\Framework\v2.0 .50727\Temporar y ASP.NET Files", the website runs fine
again.
Can you suggest why ASP.NET is not recompiling on its own when
something changes?

Will this problem go away if we use pre-compiled DLLs instead of
letting ASP .NET compile in-place? We know that even if we use pre-
compiled DLLs, the "C:\WINDOWS\Mic rosoft.NET\Fram ework
\v2.0.50727\Tem porary ASP.NET Files" directory still gets filled with
DLLs. Not sure why. However, if we have to change something in a code-
behind and create a new DLL and replace it in the vrtual directory,
will we see the same problem as mentioned above?

Please provide some guidance.

Thanks,
Yash

Feb 22 '07 #1
1 5750
this is due to compile batching. for compile performance when a site is
compiled, several pages are compiled together. when you update the site
a batch grouping occurs. in the recompile two pages reference Parameters
from different namespaces (for example you named a class Parameters)
and the decalre becomes ambiguous.

just fully qualify parameter as you did DbCommand.

-- bruce (sqlwork.com)

ya****@gmail.co m wrote:
Hi,

We have an application that has been deployed into a virtual folder
along with ascx, aspx and the code-behind files. It runs smoothly as
long as we don't change any code-behind file. If we change a file, we
expect ASP .NET to recompile the website when a user next accesses it.
However, on next access the user gets the following error:

Description: An error occurred during the compilation of a resource
required to service this request. Please review the following specific
error details and modify your source code appropriately.

Compiler Error Message: BC30554: 'Parameter' is ambiguous.

Source Error:

Line 23: Dim db As Database = DatabaseFactory .CreateDatabase ()
Line 24: Dim cmd As System.Data.Com mon.DbCommand =
db.GetStoredPro cCommand(strPro cName)
Line 25: Dim param As Parameter
Line 26: For Each param In objPrameters
Line 27: db.AddInParamet er(cmd, param.Name, param.Type,
param.DefaultVa lue)
We know for sure that there is not syntax error in the changed code.
If we reset IIS and delete everything from "C:\WINDOWS\Mic rosoft.NET
\Framework\v2.0 .50727\Temporar y ASP.NET Files", the website runs fine
again.
Can you suggest why ASP.NET is not recompiling on its own when
something changes?

Will this problem go away if we use pre-compiled DLLs instead of
letting ASP .NET compile in-place? We know that even if we use pre-
compiled DLLs, the "C:\WINDOWS\Mic rosoft.NET\Fram ework
\v2.0.50727\Tem porary ASP.NET Files" directory still gets filled with
DLLs. Not sure why. However, if we have to change something in a code-
behind and create a new DLL and replace it in the vrtual directory,
will we see the same problem as mentioned above?

Please provide some guidance.

Thanks,
Yash
Feb 22 '07 #2

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