CODEWITHSUNDEEP
asp.netuser-controls
Joel Barsotti
Joel Barsotti

Reputation: 3099

Getting namespace name not found for ASP.net user control

So I'm having problems when I try to publish the website. I'm in visual studio 2008 sp1.

I've got a bunch of user controls and on a few pages I'm using them programatically.

I've got a reference on the aspx page

<%@ Reference Control="~/UserControls/Foo.ascx" %>

Then on the code behing I use

ASP.usercontrols_foo newFoo control = (ASP.usercontrols_foo)Page.LoadControl("~/UserControls/Foo.ascx");

If I navigate to the page it works fine, but when I goto publish the website I get a compile time error.

Upvotes: 4

Views: 12574

Answers (8)

Muhammad Bilal
Muhammad Bilal

Reputation: 1152

Please check:

Do you have any website.publishproj file?
If it exists, then delete and try again and publish code.

Upvotes: 0

ratnesh
ratnesh

Reputation: 21

I've found a solution for it. If i'll declare controls in user defined namespace, then I can use controls directly without using ASP or referencing it into aspx page.

Upvotes: 1

ratnesh
ratnesh

Reputation: 21

Casting the user control may create many problem .my approach is to create a class (say control Class) put all the properties and method you need after casting and inherit this class from System.Web.UI.UserControl .Then in your user cotrol code file instead of System.Web.UI.UserControl user this control class .

now when ever you need casting cast with this class only . it will be light casting as well.

Upvotes: 0

cestbienmoi
cestbienmoi

Reputation: 11

Specify a namespace for user control (see Dynamically Load a user control (ascx) in a asp.net website ).

Upvotes: 1

Bob Palmer
Bob Palmer

Reputation: 4762

I had this same problem - actually, in my case I could get it to compile and build my website, but it would blow up spectacularly when doing an automated build.

Try replacing your code as follows:

ASP.usercontrols_foo newFoo control = (ASP.usercontrols_foo)Page.LoadControl("~/UserControls/Foo.ascx");

with 

USERCONTROLS_Foo newFoo control = (USERCONTROLS_Foo)Page.LoadControl("~/UserControls/Foo.ascx");

(Capitalization will be based on how you capitalized your directory name/control name - but in either case should highlight appropriately).

Upvotes: 2

Riaz Hosein
Riaz Hosein

Reputation: 131

Argh, I'm bleeding development hours on this same issue. Does anyone have a solution to this ?

BTW: It builds if you uncheck "Allow this precompiled site to be updatable" (Right-click on the website, choose Property Pages, MSBuild Option)

But I need the site to be updatable.

Upvotes: 6

Riaz Hosein
Riaz Hosein

Reputation: 131

Yes, I can cast it to Control. But then I lose direct access to the methods on the usercontrol.

I know that I can access the methods by reflecting into the control, and I've successfully done that but that's far from ideal to access all the other user controls on the site.

Also, the follow-up error is that it cant find the usercontrols that on the markup

<%@ Register src="CategoryRows.ascx" tagname="CategoryRows" tagprefix="abc" %>
<abc:CategoryRows ID="CategoryRows" runat="server" />

Note that I can run the site successfully both locally and on the server if I essentially XCopy the entire site (source code and all). But Publish fails.

Upvotes: 0

Mike
Mike

Reputation: 643

It may have something to do with the specific type not being available. Can you change the control reference so the type and cast just use the base Control class:

Control control = Page.LoadControl("~/UserControls/Foo.ascx");

Upvotes: 0

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