Getting namespace errors on compile

[tshad]

I have a file that I converted from VB.Net to C# that works fine in VB.Net
when I compile but not in C# using the same libraries.

The error I am getting is:

PageInit.cs(9,7 ): error CS0138: A using namespace directive can only be
applied
to namespaces; 'System.Web.Htt pCookie' is a class not a namespace

The code is:
*************** *************** ****
using System;
using System.Web;
using System.IO;
using System.Web.UI;
using System.Web.UI.W ebControls;
using System.Web.Sess ionState;
using System.Data;
using System.Data.Sql Client;
using System.Web.Http Cookie;
using System.Web.Http CookieCollectio n;
using System.Web.Http Response;
using System.Web.Http Request;
using System.Web.Http Context;
using System.Web.Http Application;
using System.Web.Http ApplicationStat e;
using System.Collecti ons;
using Microsoft.Visua lBasic;

namespace MyFunctions
{

public class PageInit
{

public static void PageSetup(MyFun ctions.Page thePage)
{
string url;
string stemp;
string urlNoParams;
Label UserLoggedOn = (Label)thePage. FindControl("Us erLoggedOn");
Label UserLoggedOnLab el =
(Label)thePage. FindControl("Us erLoggedOnLabel ");
if ((UserLoggedOn != null)) {
if (HttpContext.Cu rrent.session(" LoggedIn") != null) {
if (HttpContext.Cu rrent.session(" firstName") != null) {
UserLoggedOn.Te xt = UserLoggedOn.Te xt +
HttpContext.Cur rent.session("f irstName");
if (HttpContext.Cu rrent.session(" lastName") != null)
{
UserLoggedOn.Te xt = UserLoggedOn.Te xt + " " +
HttpContext.Cur rent.session("l astName");
}
}
if ((UserLoggedOn != null)) {
UserLoggedOn.vi sible = true;
if ((UserLoggedOnL abel != null))
UserLoggedOnLab el.visible = true;
}
}
}
if ((!thePage.IsRe fresh)) {
if (((HttpContext. Current.session ("User") != null)))
HttpContext.Cur rent.session("L astPageVisited" ) =
HttpContext.Cur rent.Session("U ser").LastPageV isited;
url =
HttpContext.Cur rent.Request.Ur l.ToString.Subs tring(HttpConte xt.Current.Requ est.Url.ToStrin g.LastIndexOf("/")
+ 1);
urlNoParams = url;
if (url.LastIndexO f("?") -1)
urlNoParams = Url.Substring(0 , url.LastIndexOf ("?"));
if (((HttpContext. Current.session ("User") != null)))
HttpContext.Cur rent.Session("U ser").LastPageV isited =
urlNoParams;
url = "";
urlNoParams = "";
if ((HttpContext.C urrent.Request. UrlReferrer != null)) {
url =
HttpContext.Cur rent.Request.Ur lReferrer.ToStr ing.Substring(H ttpContext.Curr ent.Request.Url Referrer.ToStri ng.LastIndexOf( "/")
+ 1);
if (url.LastIndexO f("?") -1) {
urlNoParams = Url.Substring(0 ,
url.LastIndexOf ("?"));
}
}
}

// Check to see if we are already at disabledAccount - if yes
don't test for /employer/ - we are already there
// if no - then check if we are a company account (/employer/)
if so & Company disabled - send to disabledAccount .aspx

HttpContext.Cur rent.session("s temp") =
HttpContext.Cur rent.Request.Ur l.ToString.Inde xOf("/employer/");
if
(HttpContext.Cu rrent.Request.U rl.ToString.Ind exOf("disabledA ccount.aspx")
== -1) {
if
(HttpContext.Cu rrent.Request.U rl.ToString.Ind exOf("/employer/") -1) {
if ((HttpContext.C urrent.session( "CompanyDisable d") !=
null)) {
HttpContext.Cur rent.Response.R edirect("disabl edAccount.aspx" );
}
}
}
}
}
}
*************** *************** ******

In the VB.Net code it is:
*************** *************** *************8
Imports System
Imports System.Web
Imports System.IO
Imports System.Web.UI
Imports System.Web.UI.W ebControls
Imports System.Web.Sess ionState
Imports System.Data
Imports System.Data.Sql Client
Imports System.Web.Http Cookie
Imports System.Web.Http CookieCollectio n
Imports System.Web.Http Response
Imports System.Web.Http Request
imports System.Web.Http Context
Imports System.Web.Http Application
Imports System.Web.Http ApplicationStat e
Imports System.Collecti ons
Imports Microsoft.Visua lBasic
*************** *************** *************** ******

Where Imports is the same as Using. So why am I getting the error?

The errors are from HTTPCookie to HttpApplication State.

My compiler line for c# that doesn't work is:

C:\WINDOWS\Micr osoft.NET\Frame work\v1.1.4322\ csc /t:library PageInit.cs
/r:system.web.dl l /r:system.data.d ll /r:system.dll
/r:Microsoft.Vis ualBasic.dll /r:refresh.dll

And the compiler line for vb.net that does work is:
C:\WINDOWS\Micr osoft.NET\Frame work\v1.1.4322\ vbc /t:library PageInit.vb
/r:system.web.dl l /r:system.data.d ll /r:system.dll
/r:Microsoft.Vis ualBasic.dll /r:refresh.dll

As you can see virtually identical.

Thanks,

Tom

[John B]

tshad wrote:

I have a file that I converted from VB.Net to C# that works fine in VB.Net
when I compile but not in C# using the same libraries.

The error I am getting is:

PageInit.cs(9,7 ): error CS0138: A using namespace directive can only be
applied
to namespaces; 'System.Web.Htt pCookie' is a class not a namespace

The code is:
*************** *************** ****
using System;
using System.Web;
using System.IO;
using System.Web.UI;
using System.Web.UI.W ebControls;
using System.Web.Sess ionState;
using System.Data;
using System.Data.Sql Client;
using System.Web.Http Cookie;

^^^^
Have you tried removing the offending using directive?

Try and remove it and see if that fixes it.

<...>

JB

[Francois Malgreve]

Hi,

In C# you can "import" namespace ONLY with the using keyword. When you
import a certain namespace, all the classes under that namespace are
directly available without having to specify their namespace in the code.

So your code should compile if you replace your using section by:

using System;
using System.Web;
using System.IO;
using System.Web.UI;
using System.Web.UI.W ebControls;
using System.Web.Sess ionState;
using System.Data;
using System.Data.Sql Client;
using System.Collecti ons;
using Microsoft.Visua lBasic;

The line "using System.Web;" will make that all classes such as HttpCookie,
HttpCookieColle ction, HttpResponse available directly (which you were trying
to import separatly and which is illegal in C#).

Apparently in VB.NET you can "import" a class and not just the namespace.
Note that in your list of Imports, you were already importing the namespace
System.Web, so it was unecessary to import any of the classes under that
namespace separatly.
This means that your code in VB.NET should also compile with the following
imports statements:

Imports System
Imports System.Web
Imports System.IO
Imports System.Web.UI
Imports System.Web.UI.W ebControls
Imports System.Web.Sess ionState
Imports System.Data
Imports System.Data.Sql Client
Imports System.Collecti ons
Imports Microsoft.Visua lBasic

I hope that this further information helps.

Best regards,

Francois Malgreve
http://www.malgreve.net
"John B" <jb******@yahoo .comwrote in message news:fg******** **@aioe.org...

tshad wrote:

>I have a file that I converted from VB.Net to C# that works fine in
VB.Net when I compile but not in C# using the same libraries.

The error I am getting is:

PageInit.cs(9, 7): error CS0138: A using namespace directive can only be
applied
to namespaces; 'System.Web.Htt pCookie' is a class not a namespace

The code is:
************** *************** *****
using System;
using System.Web;
using System.IO;
using System.Web.UI;
using System.Web.UI.W ebControls;
using System.Web.Sess ionState;
using System.Data;
using System.Data.Sql Client;
using System.Web.Http Cookie;

^^^^
Have you tried removing the offending using directive?

Try and remove it and see if that fixes it.

<...>

JB

[tshad]

"Francois Malgreve" <fr************ ***@gmail.com_P ASDESPAMwrote in message
news:eb******** ******@TK2MSFTN GP02.phx.gbl...

Hi,

In C# you can "import" namespace ONLY with the using keyword. When you
import a certain namespace, all the classes under that namespace are
directly available without having to specify their namespace in the code.

So your code should compile if you replace your using section by:

using System;
using System.Web;
using System.IO;
using System.Web.UI;
using System.Web.UI.W ebControls;
using System.Web.Sess ionState;
using System.Data;
using System.Data.Sql Client;
using System.Collecti ons;
using Microsoft.Visua lBasic;

The line "using System.Web;" will make that all classes such as
HttpCookie, HttpCookieColle ction, HttpResponse available directly (which
you were trying to import separatly and which is illegal in C#).

That did it.

Thanks,

Tom

>
Apparently in VB.NET you can "import" a class and not just the namespace.
Note that in your list of Imports, you were already importing the
namespace System.Web, so it was unecessary to import any of the classes
under that namespace separatly.
This means that your code in VB.NET should also compile with the following
imports statements:

Imports System
Imports System.Web
Imports System.IO
Imports System.Web.UI
Imports System.Web.UI.W ebControls
Imports System.Web.Sess ionState
Imports System.Data
Imports System.Data.Sql Client
Imports System.Collecti ons
Imports Microsoft.Visua lBasic

I hope that this further information helps.

Best regards,

Francois Malgreve
http://www.malgreve.net
"John B" <jb******@yahoo .comwrote in message
news:fg******** **@aioe.org...

>tshad wrote:

>>I have a file that I converted from VB.Net to C# that works fine in
VB.Net when I compile but not in C# using the same libraries.

The error I am getting is:

PageInit.cs(9 ,7): error CS0138: A using namespace directive can only be
applied
to namespaces; 'System.Web.Htt pCookie' is a class not a
namespace

The code is:
************* *************** ******
using System;
using System.Web;
using System.IO;
using System.Web.UI;
using System.Web.UI.W ebControls;
using System.Web.Sess ionState;
using System.Data;
using System.Data.Sql Client;
using System.Web.Http Cookie;

^^^^
Have you tried removing the offending using directive?

Try and remove it and see if that fixes it.

<...>

JB