Accessing a Master Page Property from a Module

[Kirk]

I have been reading Scott Allen's article on Master Pages (http://
odetocode.com/Articles/450.aspx) but I am having problems
understanding a concept. Specifically, I have created a property
(called "CurFlag") on my master page that can be accessed from content
pages, but not from separate code modules.

I tried doing something like this in my VB code module:

Dim myMaster As MasterPage = CType(ProjectMg mt.Master,
MasterPage)
myMaster.CurFla g = "value"

....but this just gets me an "Reference to a non-shared member requires
an object reference" error on the first line. Forgive my ignorance,
but is my syntax correct, or do I need to add something additional to
the master page so that my module "sees" this master page?

I would appreciate any suggestions.
Thank you.

[Alexey Smirnov]

On May 24, 10:18 pm, Kirk <lok...@hotmail .comwrote:

I have been reading Scott Allen's article on Master Pages (http://
odetocode.com/Articles/450.aspx) but I am having problems
understanding a concept. Specifically, I have created a property
(called "CurFlag") on my master page that can be accessed from content
pages, but not from separate code modules.

I tried doing something like this in my VB code module:

Dim myMaster As MasterPage = CType(ProjectMg mt.Master,
MasterPage)
myMaster.CurFla g = "value"

...but this just gets me an "Reference to a non-shared member requires
an object reference" error on the first line. Forgive my ignorance,
but is my syntax correct, or do I need to add something additional to
the master page so that my module "sees" this master page?

I would appreciate any suggestions.
Thank you.

The instance must first be declared as an object variable and then
referenced by the variable name.

Dim myMaster As MasterPage = new ProjectMgmt.Mas ter

[Alexey Smirnov]

On May 24, 10:29 pm, Alexey Smirnov <alexey.smir... @gmail.comwrote :

On May 24, 10:18 pm, Kirk <lok...@hotmail .comwrote:

I have been reading Scott Allen's article on Master Pages (http://
odetocode.com/Articles/450.aspx) but I am having problems
understanding a concept. Specifically, I have created a property
(called "CurFlag") on my master page that can be accessed from content
pages, but not from separate code modules.

I tried doing something like this in my VB code module:

Dim myMaster As MasterPage = CType(ProjectMg mt.Master,
MasterPage)
myMaster.CurFla g = "value"

...but this just gets me an "Reference to a non-shared member requires
an object reference" error on the first line. Forgive my ignorance,
but is my syntax correct, or do I need to add something additional to
the master page so that my module "sees" this master page?

I would appreciate any suggestions.
Thank you.

The instance must first be declared as an object variable and then
referenced by the variable name.

Dim myMaster As MasterPage = new ProjectMgmt.Mas ter- Hide quoted text -

- Show quoted text -

Wait... there must be a name of the class

I think, ProjectMgmt.Mas ter is the name of your Master page

[=?Utf-8?B?U2VyZ2V5IFBvYmVyZXpvdnNraXk=?=]

Kirk,

Not sure what are you trying to achieve - why would you need to access
master page (which is generally page specific - as different pages may have
different master pages) from a module? You will only want to access a
particular page's master page instance - in this case you will need a
reference to the page instance (or any control on the page) or to the master
itself.

If you need to change your master for all page - do it inside your Master,
and you will have the reference to it.

If you provide a bit more on what you are trying to achieve, it will be
easier to suggest a better way to accomplish the task.

"Kirk" wrote:

I have been reading Scott Allen's article on Master Pages (http://
odetocode.com/Articles/450.aspx) but I am having problems
understanding a concept. Specifically, I have created a property
(called "CurFlag") on my master page that can be accessed from content
pages, but not from separate code modules.

I tried doing something like this in my VB code module:

Dim myMaster As MasterPage = CType(ProjectMg mt.Master,
MasterPage)
myMaster.CurFla g = "value"

....but this just gets me an "Reference to a non-shared member requires
an object reference" error on the first line. Forgive my ignorance,
but is my syntax correct, or do I need to add something additional to
the master page so that my module "sees" this master page?

I would appreciate any suggestions.
Thank you.

[Kirk]

On May 24, 6:26 pm, Sergey Poberezovskiy
<SergeyPoberezo vs...@discussio ns.microsoft.co mwrote:

Kirk,

Not sure what are you trying to achieve - why would you need to access
master page (which is generally page specific - as different pages may have
different master pages) from a module? You will only want to access a
particular page's master page instance - in this case you will need a
reference to the page instance (or any control on the page) or to the master
itself.

If you need to change your master for all page - do it inside your Master,
and you will have the reference to it.

If you provide a bit more on what you are trying to achieve, it will be
easier to suggest a better way to accomplish the task.

"Kirk" wrote:

I have been reading Scott Allen's article on Master Pages (http://
odetocode.com/Articles/450.aspx) but I am having problems
understanding a concept. Specifically, I have created a property
(called "CurFlag") on my master page that can be accessed from content
pages, but not from separate code modules.

I tried doing something like this in my VB code module:

Dim myMaster As MasterPage = CType(ProjectMg mt.Master,
MasterPage)
myMaster.CurFla g = "value"

....but this just gets me an "Reference to a non-shared member requires
an object reference" error on the first line. Forgive my ignorance,
but is my syntax correct, or do I need to add something additional to
the master page so that my module "sees" this master page?

I would appreciate any suggestions.
Thank you.- Hide quoted text -

- Show quoted text -

Thanks for all of the replies. My situation is fairly simple: I have
one master page (called "ProjectMgmt.Ma ster,
MasterPage") that has about 10 content pages.

I have a function in a VB module that does some math/validation for
me. This function is called by a button on a content page. When I
arrive at the result, I want to change a label on the master page (so
it is visible on all pages of the site).

Is there a better way to do what I am trying to accomplish? If so, I
would appreciate any code syntax examples you could give me. I don't
know the "proper" names for some objects, so I am unable to follow the
first reply's suggestion (just a newbie, I guess).

Thank you again.

If there is a better way to do this than

[=?Utf-8?B?U2VyZ2V5IFBvYmVyZXpvdnNraXk=?=]

So, you want to only display this label (on all pages) after a certain event
happens on a page - correct? Then store this calculated value (in Session,
for example) and read it on your Master PreRender event (this will ensure
that all button clicks and similar events from other controls have already
been fired and processed).
Something similar to the following:
button click:
Me.Session("MyM asterLabelText" ) = ModuleName.GetL abelText(...)
Master prerender:
MyLabel.Text = Me.Session("MyM asterLabelText" )

"Kirk" wrote:

On May 24, 6:26 pm, Sergey Poberezovskiy
<SergeyPoberezo vs...@discussio ns.microsoft.co mwrote:

Kirk,

Not sure what are you trying to achieve - why would you need to access
master page (which is generally page specific - as different pages may have
different master pages) from a module? You will only want to access a
particular page's master page instance - in this case you will need a
reference to the page instance (or any control on the page) or to the master
itself.

If you need to change your master for all page - do it inside your Master,
and you will have the reference to it.

If you provide a bit more on what you are trying to achieve, it will be
easier to suggest a better way to accomplish the task.

"Kirk" wrote:

I have been reading Scott Allen's article on Master Pages (http://
odetocode.com/Articles/450.aspx) but I am having problems
understanding a concept. Specifically, I have created a property
(called "CurFlag") on my master page that can be accessed from content
pages, but not from separate code modules.

I tried doing something like this in my VB code module:

Dim myMaster As MasterPage = CType(ProjectMg mt.Master,
MasterPage)
myMaster.CurFla g = "value"

....but this just gets me an "Reference to a non-shared member requires
an object reference" error on the first line. Forgive my ignorance,
but is my syntax correct, or do I need to add something additional to
the master page so that my module "sees" this master page?

I would appreciate any suggestions.
Thank you.- Hide quoted text -

- Show quoted text -

Thanks for all of the replies. My situation is fairly simple: I have
one master page (called "ProjectMgmt.Ma ster,
MasterPage") that has about 10 content pages.

I have a function in a VB module that does some math/validation for
me. This function is called by a button on a content page. When I
arrive at the result, I want to change a label on the master page (so
it is visible on all pages of the site).

Is there a better way to do what I am trying to accomplish? If so, I
would appreciate any code syntax examples you could give me. I don't
know the "proper" names for some objects, so I am unable to follow the
first reply's suggestion (just a newbie, I guess).

Thank you again.

If there is a better way to do this than

[Alexey Smirnov]

On May 25, 1:29 am, Kirk <lok...@hotmail .comwrote:

would appreciate any code syntax examples you could give me. I don't
know the "proper" names for some objects, so I am unable to follow the
first reply's suggestion (just a newbie, I guess).

Open the code-behind *.Master.vb

The name of your class you can find at the top of the file

Public Partial Class {className}

To make a proper "reference to a non-shared member" in you Module do
the following

Dim myMaster As MasterPage = New {className}
myMaster.CurFla g = "value"
.....

Should fix your problem, I hope :-)

[Kirk]

I think you are on the right track, but I still have a problem.

The name of the class is shown like this in my master page
(ProjectMgmt.Ma ster.vb):

Partial Public Class ProjectMgmt

And the property I added is called out like this (within the above
file):

Public Property CurFlag() As String

Therefore, I followed your example (thank you!) and came up with this:

Dim myMaster As MasterPage = New ProjectMgmt
myMaster.CurFla g = "value"

The first line has no errors, but the second once has this error:

"'CurFlag' is not not a member of 'System.Web.UI. MasterPage'."

I really don't know why I am seeing this error, as once the variable
myMaster is defined, it should be able to find the public property
CurFlag (right?).

Thank you again for following up with my problem. I would appreciate
any further suggestions you might have.

[Alexey Smirnov]

On May 25, 2:16 pm, Kirk <lok...@hotmail .comwrote:

"'CurFlag' is not not a member of 'System.Web.UI. MasterPage'."

Ah, sorry! it says about 'System.Web.UI. MasterPage' because it should
be

Dim myMaster As ProjectMgmt = New ProjectMgmt

or simply

Dim myMaster As New ProjectMgmt

hope it works now

[Kirk]

Alexey, I think we are making progress, but I have yet another bug.

The code compiles correctly but I get an error as the property
attempts to assign the value. This is the property in the master
page:

Public Property CurFlag() As String
Get
Return lblFlag.Text
End Get
Set(ByVal value As String)
lblFlag.Text = value '<==Error here
End Set
End Property

When it gets to the marked line above, I get this error:

"Object reference not set to an instance of an object."

Actually, I can see this as a warning if I check this line

myMaster.CurFla g = "value"

If I hover my mouse over myMaster.CurFla g it gives this same error.
Do you have any suggestions?

Thank you again for sticking with me on this one.