Pass empty string

[shapper]

Hello,

I have a method:
Roles(CultureIn fo culture, RoleType? type, bool? open, bool?
beginWithEmpty, string[] userRoles)

How can I pass an empty string as userRoles? I tried:
Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[])

and

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[0])

and

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, null)

But nothing works.

Thanks,
Miguel

[Family Tree Mike]

It depends on how you are checking parameters in Roles, but how about:

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[] {string.Empty})
"shapper" <md*****@gmail. comwrote in message
news:86******** *************** ***********@o4g 2000pra.googleg roups.com...

Hello,

I have a method:
Roles(CultureIn fo culture, RoleType? type, bool? open, bool?
beginWithEmpty, string[] userRoles)

How can I pass an empty string as userRoles? I tried:
Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[])

and

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[0])

and

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, null)

But nothing works.

Thanks,
Miguel

[shapper]

On Oct 22, 2:09*am, "Family Tree Mike"
<FamilyTreeM... @ThisOldHouse.c omwrote:

It depends on how you are checking parameters in Roles, but how about:

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
* false, true, new string[] {string.Empty})

"shapper" <mdmo...@gmail. comwrote in message

news:86******** *************** ***********@o4g 2000pra.googleg roups.com...

Hello,

I have a method:
Roles(CultureIn fo culture, RoleType? type, bool? open, bool?
beginWithEmpty, string[] userRoles)

How can I pass an empty string as userRoles? I tried:
Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[])

and

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, new string[0])

and

Roles(Thread.Cu rrentThread.Cur rentCulture, RoleType.Admini strator,
false, true, null)

But nothing works.

Thanks,
Miguel

In roles I am creating a list of Role, RoleList, and using this array
of string as follows:
RoleList.Where( r =(userRoles == null ||
userRoles.Conta ins(r.Type.ToSt ring()))

So if userRoles is empty, nothing was passed, all records are used.
If not then from RoleList get only the items which r.Type is contained
in RoleList.

But now I am not sure if I can use:
userRoles == null

Because I think I can't pass the string array as null.

[Peter Duniho]

On Tue, 21 Oct 2008 19:00:26 -0700, shapper <md*****@gmail. comwrote:

In roles I am creating a list of Role, RoleList, and using this array
of string as follows:
RoleList.Where( r =(userRoles == null ||
userRoles.Conta ins(r.Type.ToSt ring()))

So if userRoles is empty, nothing was passed, all records are used.
If not then from RoleList get only the items which r.Type is contained
in RoleList.

But now I am not sure if I can use:
userRoles == null

Because I think I can't pass the string array as null.

A concise-but-complete code sample would be helpful. Passing "null" or
"new string[0]" should work fine, I think, at least given what you've
showed us so far. So if it doesn't work, there's probably something else
going on.

But you need to show everything for us to figure out what that "something
else" is.

Pete

[shapper]

On Oct 22, 3:48*am, "Peter Duniho" <NpOeStPe...@nn owslpianmk.com>
wrote:

On Tue, 21 Oct 2008 19:00:26 -0700, shapper <mdmo...@gmail. comwrote:

In roles I am creating a list of Role, RoleList, and using this array
of string as follows:
RoleList.Where( r =(userRoles == null ||
userRoles.Conta ins(r.Type.ToSt ring()))

So if userRoles is empty, nothing was passed, all records are used.
If not then from RoleList get only the items which r.Type is contained
in RoleList.

But now I am not sure if I can use:
userRoles == null

Because I think I can't pass the string array as null.

A concise-but-complete code sample would be helpful. *Passing "null" or*
"new string[0]" should work fine, I think, at least given what you've *
showed us so far. *So if it doesn't work, there's probably something else *
going on.

But you need to show everything for us to figure out what that "something*
else" is.

Pete

Sorry, for the delay.
Basically, I have a class Role with Type, Description, Open, ...
properties that holds information on each of my application role.

Inside this class I have a method named List that returns the list of
roles to populate and input, checkboxes, etc ... So the format might
differ.
And sometimes I might need to filter the list ...

On my MVC view I want to call the method list but not directly ... I
prefer to call the a method on the View's ViewData object. So I have:

public static IList<RoleRoles (CultureInfo culture, RoleType?
type, bool? open, bool? beginWithEmpty, string[] userRoles) {
return Role.List(cultu re, type, open, beginWithEmpty,
userRoles);
}

public static IList<RoleList( CultureInfo culture, RoleType?
type, bool? open, bool? beginWithEmpty, string[] userRoles) {
IList<Roleroles = new List<Role>();
if (beginWithEmpty ?? false) roles.Add(new Role { Type = null,
Description = "---", Open = true });
switch (culture.TwoLet terISOLanguageN ame.ToLower()) {
case "pt":
roles.Add(new Role { Type = RoleType.Admini strator,
Description = "Administrador" , Open = false });
roles.Add(new Role { Type = RoleType.Collab orator,
Description = "Colaborado r", Open = false });
// ...
break;
}
return roles.Where(r =(userRoles == null ||
userRoles.Conta ins(r.Type.ToSt ring())) && (open == null || r.Open ==
open) && (type == null || r.Type == type)).OrderBy( r =>
r.Description). ToList();
} // List

And in my view I have:
<%foreach (Role role in
ViewData.Get<Ac countBook>("Acc ount").Roles(Th read.CurrentThr ead.CurrentCult ure,
RoleType.Admini strator, false, true, null)) {%>

And I am getting the error:
Member
'MyApp.Models.A ccountBook.Role s(System.Global ization.Culture Info,
MyApp.Security. Membership.Role Type?, bool?, bool?, string[])' cannot
be accessed with an instance reference; qualify it with a type name
instead

What am I doing wrong?

Thank You,
Miguel

[Peter Duniho]

On Wed, 22 Oct 2008 06:48:28 -0700, shapper <md*****@gmail. comwrote:

[...]
And I am getting the error:
Member
'MyApp.Models.A ccountBook.Role s(System.Global ization.Culture Info,
MyApp.Security. Membership.Role Type?, bool?, bool?, string[])' cannot
be accessed with an instance reference; qualify it with a type name
instead

What am I doing wrong?

Well, the first mistake was to post a question that has nothing to do with
your problem. :p

The second mistake was to not post the error message you're getting.
Especially since that error message clearly describes the problem: the
Roles() method is a static method, but you are calling it as if it were an
instance method.

The loop in which you call the Roles() method seems pointless to me, since
you never use the "role" loop variable. You just call the method in an
identical way for each "role" instance you get. But if you really
intended to implement things that way, you need to just do what the error
message says: use a type name instead of an instance reference for calling
the Roles() method.

Pete

[shapper]

On Oct 22, 7:49*pm, "Peter Duniho" <NpOeStPe...@nn owslpianmk.com>
wrote:

On Wed, 22 Oct 2008 06:48:28 -0700, shapper <mdmo...@gmail. comwrote:

[...]
And I am getting the error:
Member
'MyApp.Models.A ccountBook.Role s(System.Global ization.Culture Info,
MyApp.Security. Membership.Role Type?, bool?, bool?, string[])' cannot
be accessed with an instance reference; qualify it with a type name
instead

What am I doing wrong?

Well, the first mistake was to post a question that has nothing to do with *
your problem. *:p

The second mistake was to not post the error message you're getting. *
Especially since that error message clearly describes the problem: the *
Roles() method is a static method, but you are calling it as if it were an *
instance method.

The loop in which you call the Roles() method seems pointless to me, since *
you never use the "role" loop variable. *You just call the method in an*
identical way for each "role" instance you get. *But if you really *
intended to implement things that way, you need to just do what the error*
message says: use a type name instead of an instance reference for calling *
the Roles() method.

Pete

Thanks! I copied pasted my method I forgot to remove the static ...
then I was completely convinced that the problem was in the string
part because I had problems in it before ...

I didn't post the code inside the loop because I knew that wasn't the
problem ... about this one I was sure :-P ... lol

Thanks,
Miguel