Major problem understanding how to do user control in 2.0

Hello,

I have a user control that has one .cs file, with several .ascx files
that call it. The reason for this is that I can pick whichever of the
..ascx files I want (based on a site owner setting), and I know the
code-behind is the same in all cases. That way the .ascx file can be
picked dynamically, allowing the appearance of the page to be changed
based on a user setting.

This was working fine in 1.1, but had the code-behind compiled into a
DLL. I'm trying to convert the user control(s) to use the new 2.0
code-behind model, and would like to avoid having to compile the DLL
each time.

The page that uses the control has a placeholder called
plcProductDetails, and has code like...

string fileName = "ShowProductStyle1.ascx"; // normally from user
setting
Control ctlShowProduct = LoadControl(fileName);
((ShowProduct)ctlShowProduct).DisplayProduct();
plcProductDetails.Controls.Add(ctlShowProduct);

Now this worked fine when using the old 1.1 code-behind model. I could
compile ShowProduct.dll on its own and the code above would find it OK.

Now I have deleted the DLL, and changed the top of each of the .ascx
files to look like...

<%@dotnet.itags.org. Control CodeFile="ShowProduct.cs" Inherits="ShowProduct" %
and the top of the code-behind file looks like...

// various "using" statements omitted for clarity
public partial class ShowProduct : UserControl {

If I try to load the page now, I get an error...

"CS0246: The type or namespace name 'ShowProduct' could not be found"

on the line...

((ShowProduct)ctlShowProduct).DisplayProduct();

I don't know how to get around this. When LoadControl was called, it
referenced the .ascx file, and that referenced the code-behind file that
contains the class definition for ShowProduct. Why then can't the
framework find the class?

I hope this is clear. I'm really lost here and would appreciate any clue
as to how I am supposed to do this. The weird thing is that I tried
creating a user control in VWD, and I could have two .ascx files
referencing the same .cs file and they both work fine without me needing
to compile anything. I'm obviously doing something wrong, but I can't
see what.

TIA

--
Alan Silver
(anything added below this line is nothing to do with me)you can not share partial classes between asxc. you need to stick to your
old coding style. move the common code to a file in the app_code dir, so all
pages can see it. as you will not be able to use a partial classes, turn
autowireup events off, and use the 1.1 coding style.

you would proably be better off switching to themes to change the look.

-- bruce (sqlwork.com)

"Alan Silver" <alan-silver@.nospam.thanx> wrote in message
news:jrSihtSM1LfDFwYv@.nospamthankyou.spam...
> Hello,
> I have a user control that has one .cs file, with several .ascx files that
> call it. The reason for this is that I can pick whichever of the .ascx
> files I want (based on a site owner setting), and I know the code-behind
> is the same in all cases. That way the .ascx file can be picked
> dynamically, allowing the appearance of the page to be changed based on a
> user setting.
> This was working fine in 1.1, but had the code-behind compiled into a DLL.
> I'm trying to convert the user control(s) to use the new 2.0 code-behind
> model, and would like to avoid having to compile the DLL each time.
> The page that uses the control has a placeholder called plcProductDetails,
> and has code like...
> string fileName = "ShowProductStyle1.ascx"; // normally from user setting
> Control ctlShowProduct = LoadControl(fileName);
> ((ShowProduct)ctlShowProduct).DisplayProduct();
> plcProductDetails.Controls.Add(ctlShowProduct);
> Now this worked fine when using the old 1.1 code-behind model. I could
> compile ShowProduct.dll on its own and the code above would find it OK.
> Now I have deleted the DLL, and changed the top of each of the .ascx files
> to look like...
> <%@. Control CodeFile="ShowProduct.cs" Inherits="ShowProduct" %>
> and the top of the code-behind file looks like...
> // various "using" statements omitted for clarity
> public partial class ShowProduct : UserControl {
>
> If I try to load the page now, I get an error...
> "CS0246: The type or namespace name 'ShowProduct' could not be found"
> on the line...
> ((ShowProduct)ctlShowProduct).DisplayProduct();
> I don't know how to get around this. When LoadControl was called, it
> referenced the .ascx file, and that referenced the code-behind file that
> contains the class definition for ShowProduct. Why then can't the
> framework find the class?
> I hope this is clear. I'm really lost here and would appreciate any clue
> as to how I am supposed to do this. The weird thing is that I tried
> creating a user control in VWD, and I could have two .ascx files
> referencing the same .cs file and they both work fine without me needing
> to compile anything. I'm obviously doing something wrong, but I can't see
> what.
> TIA
> --
> Alan Silver
> (anything added below this line is nothing to do with me)
>you can not share partial classes between asxc. you need to stick to your
>old coding style. move the common code to a file in the app_code dir, so all
>pages can see it. as you will not be able to use a partial classes, turn
>autowireup events off, and use the 1.1 coding style.

OK, thanks. At least I know I wasn't doing anything stupid (for once!!)

>you would proably be better off switching to themes to change the look.

I don't think Themes wouldn't help in this situation. Don't they only
apply to full pages? I need the rest of the page to stay as it is, and
just have this one bit display according to the style set by the site
owner.

Thanks anyway. I have been looking at themes, and they do look good, but
you have to know when they are applicable.

Ta ra

>-- bruce (sqlwork.com)
>
>"Alan Silver" <alan-silver@.nospam.thanx> wrote in message
>news:jrSihtSM1LfDFwYv@.nospamthankyou.spam...
>> Hello,
>>
>> I have a user control that has one .cs file, with several .ascx files that
>> call it. The reason for this is that I can pick whichever of the .ascx
>> files I want (based on a site owner setting), and I know the code-behind
>> is the same in all cases. That way the .ascx file can be picked
>> dynamically, allowing the appearance of the page to be changed based on a
>> user setting.
>>
>> This was working fine in 1.1, but had the code-behind compiled into a DLL.
>> I'm trying to convert the user control(s) to use the new 2.0 code-behind
>> model, and would like to avoid having to compile the DLL each time.
>>
>> The page that uses the control has a placeholder called plcProductDetails,
>> and has code like...
>>
>> string fileName = "ShowProductStyle1.ascx"; // normally from user setting
>> Control ctlShowProduct = LoadControl(fileName);
>> ((ShowProduct)ctlShowProduct).DisplayProduct();
>> plcProductDetails.Controls.Add(ctlShowProduct);
>>
>> Now this worked fine when using the old 1.1 code-behind model. I could
>> compile ShowProduct.dll on its own and the code above would find it OK.
>>
>> Now I have deleted the DLL, and changed the top of each of the .ascx files
>> to look like...
>>
>> <%@. Control CodeFile="ShowProduct.cs" Inherits="ShowProduct" %>
>>
>> and the top of the code-behind file looks like...
>>
>> // various "using" statements omitted for clarity
>> public partial class ShowProduct : UserControl {
>>
>>
>> If I try to load the page now, I get an error...
>>
>> "CS0246: The type or namespace name 'ShowProduct' could not be found"
>>
>> on the line...
>>
>> ((ShowProduct)ctlShowProduct).DisplayProduct();
>>
>> I don't know how to get around this. When LoadControl was called, it
>> referenced the .ascx file, and that referenced the code-behind file that
>> contains the class definition for ShowProduct. Why then can't the
>> framework find the class?
>>
>> I hope this is clear. I'm really lost here and would appreciate any clue
>> as to how I am supposed to do this. The weird thing is that I tried
>> creating a user control in VWD, and I could have two .ascx files
>> referencing the same .cs file and they both work fine without me needing
>> to compile anything. I'm obviously doing something wrong, but I can't see
>> what.
>>
>> TIA
>>
>> --
>> Alan Silver
>> (anything added below this line is nothing to do with me)

--
Alan Silver
(anything added below this line is nothing to do with me)