«

Help! I'm developing a custom server control and want to get/set properties
in my codebehind. I have the control set within the HTML page correctly and
it loads/displays correctly, but when I try to compile my aspx.vb code, it
complains that my variable name is undeclared. Is there a good article or
sample I can use to master this? I don't need Postback, but I do want the
properties avail during other controls postbacks. ANY assist is most
appreciated!
wardeaux

The web is stateless, so if you wanted properties to persist your going to
have to save it into viewstate, or a session variable. Viewstate is your
best bet coz it will save the values into the page and then retrieve them
after postback. This is how webserver controls maintain state.
In a get/set accessors scenario the following is correct. If you are unable
to compile and it says a variable is not declared this has nothing to do
with your values not being persisted but that you are using an undeclared
variable. So declare the variable before using it ;P In the following
example I have text declared as string --this is how you need to do it ;P
get/set accessors are useful if you wanted to pass values to another
page --plus there are some extra steps you need to take in the receiving
page etc
Look in the docs, its explained in detail.

Public Property Text() As String
Get
Return CType(ViewState("Text"), String)
End Get
Set
ViewState("Text") = value
End Set
End Property
"Wardeaux" <> wrote in message
news:...
> Help! I'm developing a custom server control and want to get/set
properties
> in my codebehind. I have the control set within the HTML page correctly
and
> it loads/displays correctly, but when I try to compile my aspx.vb code, it
> complains that my variable name is undeclared. Is there a good article or
> sample I can use to master this? I don't need Postback, but I do want the
> properties avail during other controls postbacks. ANY assist is most
> appreciated!
> wardeaux
>
>

oops, custom server control. My mistake. The example i just showed you is
good. I though you were using the get/set accessors in your page and that
didnt make much sense to me ;P
Please ignore where i said "get/set accessors are useful if you wanted to
pass values to another page --plus there are some extra steps you need to
take in the receiving page etc Look in the docs, its explained in detail"

Look at the link for more details on how to maintain state in your web
custom control
http://msdn.microsoft.com/library/de...eincontrol.asp

"Wardeaux" <> wrote in message
news:...
> Help! I'm developing a custom server control and want to get/set
properties
> in my codebehind. I have the control set within the HTML page correctly
and
> it loads/displays correctly, but when I try to compile my aspx.vb code, it
> complains that my variable name is undeclared. Is there a good article or
> sample I can use to master this? I don't need Postback, but I do want the
> properties avail during other controls postbacks. ANY assist is most
> appreciated!
> wardeaux
>
>

Re-reading my post, ignore this too : "If you are unable to compile and it
says a variable is not declared this has nothing to do with your values not
being persisted but that you are using an undeclared variable. So declare
the variable before using it ;P"


"Alessandro Zifiglio" <> wrote in
message news:W_BNb.3605$...
> oops, custom server control. My mistake. The example i just showed you is
> good. I though you were using the get/set accessors in your page and that
> didnt make much sense to me ;P
> Please ignore where i said "get/set accessors are useful if you wanted to
> pass values to another page --plus there are some extra steps you need to
> take in the receiving page etc Look in the docs, its explained in detail"
>
> Look at the link for more details on how to maintain state in your web
> custom control
>
http://msdn.microsoft.com/library/de...eincontrol.asp
>
> "Wardeaux" <> wrote in message
> news:...
> > Help! I'm developing a custom server control and want to get/set
> properties
> > in my codebehind. I have the control set within the HTML page correctly
> and
> > it loads/displays correctly, but when I try to compile my aspx.vb code,
it
> > complains that my variable name is undeclared. Is there a good article
or
> > sample I can use to master this? I don't need Postback, but I do want
the
> > properties avail during other controls postbacks. ANY assist is most
> > appreciated!
> > wardeaux
> >
> >
>
>

aaaZZzz .. . .Ignore this too : "or a session variable"
"Alessandro Zifiglio" <> wrote in
message news:50CNb.3606$...
> Re-reading my post, ignore this too : "If you are unable to compile and it
> says a variable is not declared this has nothing to do with your values
not
> being persisted but that you are using an undeclared variable. So declare
> the variable before using it ;P"
>
>
> "Alessandro Zifiglio" <> wrote in
> message news:W_BNb.3605$...
> > oops, custom server control. My mistake. The example i just showed you
is
> > good. I though you were using the get/set accessors in your page and
that
> > didnt make much sense to me ;P
> > Please ignore where i said "get/set accessors are useful if you wanted
to
> > pass values to another page --plus there are some extra steps you need
to
> > take in the receiving page etc Look in the docs, its explained in
detail"
> >
> > Look at the link for more details on how to maintain state in your web
> > custom control
> >
>
http://msdn.microsoft.com/library/de...eincontrol.asp
> >
> > "Wardeaux" <> wrote in message
> > news:...
> > > Help! I'm developing a custom server control and want to get/set
> > properties
> > > in my codebehind. I have the control set within the HTML page
correctly
> > and
> > > it loads/displays correctly, but when I try to compile my aspx.vb
code,
> it
> > > complains that my variable name is undeclared. Is there a good
article
> or
> > > sample I can use to master this? I don't need Postback, but I do want
> the
> > > properties avail during other controls postbacks. ANY assist is most
> > > appreciated!
> > > wardeaux
> > >
> > >
> >
> >
>
>

I appreciate your replies, but I think you missed my question...
I have a custom control. I want to set properties and get values from my
custom control in my Codebehind. I place the control on my HTML page
(MyPage.aspx). I name the control MyControl1. Now I go the codebehind
MyPage.aspx.vb and in the PageLoad sub I want to load MyControl1 with data,
but when I type:
"...
MyControl1.MyProperty = "Hello world!"
...."
I get a compile-time error stating that MyControl1 is an undeclared
variable...
How can I get a handle to the custom control object so that I can use it in
MyPage.aspx.vb?
thanks in advance!
wardeaux

"Alessandro Zifiglio" <> wrote in
message news:W_BNb.3605$...
> oops, custom server control. My mistake. The example i just showed you is
> good. I though you were using the get/set accessors in your page and that
> didnt make much sense to me ;P
> Please ignore where i said "get/set accessors are useful if you wanted to
> pass values to another page --plus there are some extra steps you need to
> take in the receiving page etc Look in the docs, its explained in detail"
>
> Look at the link for more details on how to maintain state in your web
> custom control
>
http://msdn.microsoft.com/library/de...eincontrol.asp
>
> "Wardeaux" <> wrote in message
> news:...
> > Help! I'm developing a custom server control and want to get/set
> properties
> > in my codebehind. I have the control set within the HTML page correctly
> and
> > it loads/displays correctly, but when I try to compile my aspx.vb code,
it
> > complains that my variable name is undeclared. Is there a good article
or
> > sample I can use to master this? I don't need Postback, but I do want
the
> > properties avail during other controls postbacks. ANY assist is most
> > appreciated!
> > wardeaux
> >
> >
>
>

Wardeaux,
Just like any webControl. If you had coded it correctly as you drag it onto
your webform, you should get the declaration for your webcontrol in your
code behind just like with any webcontrol, use that to access its
properties.

Another way is to load it dynamically, you do this like any webcontrol
again. You declare the type first

dim mycontrol1 as mycontrol = new mycontrol
'then add the control to the page, or placeholder control
placeholder1.controls.add(mycontrol1)
'then set any properties --now it will maintain state
mycontrol1.myproperty = "Hello world"

You probably know this, however make sure you have added a reference to your
customcontrol and you see it in your references node in solution
explorer --if you added your custom control your toolbox and dragged and
dropped it onto your page then the reference is already added --otherwise
add the reference

"Wardeaux" <> wrote in message
news:%...
> I appreciate your replies, but I think you missed my question...
> I have a custom control. I want to set properties and get values from my
> custom control in my Codebehind. I place the control on my HTML page
> (MyPage.aspx). I name the control MyControl1. Now I go the codebehind
> MyPage.aspx.vb and in the PageLoad sub I want to load MyControl1 with
data,
> but when I type:
> "...
> MyControl1.MyProperty = "Hello world!"
> ..."
> I get a compile-time error stating that MyControl1 is an undeclared
> variable...
> How can I get a handle to the custom control object so that I can use it
in
> MyPage.aspx.vb?
> thanks in advance!
> wardeaux
>
> "Alessandro Zifiglio" <> wrote in
> message news:W_BNb.3605$...
> > oops, custom server control. My mistake. The example i just showed you
is
> > good. I though you were using the get/set accessors in your page and
that
> > didnt make much sense to me ;P
> > Please ignore where i said "get/set accessors are useful if you wanted
to
> > pass values to another page --plus there are some extra steps you need
to
> > take in the receiving page etc Look in the docs, its explained in
detail"
> >
> > Look at the link for more details on how to maintain state in your web
> > custom control
> >
>
http://msdn.microsoft.com/library/de...eincontrol.asp
> >
> > "Wardeaux" <> wrote in message
> > news:...
> > > Help! I'm developing a custom server control and want to get/set
> > properties
> > > in my codebehind. I have the control set within the HTML page
correctly
> > and
> > > it loads/displays correctly, but when I try to compile my aspx.vb
code,
> it
> > > complains that my variable name is undeclared. Is there a good
article
> or
> > > sample I can use to master this? I don't need Postback, but I do want
> the
> > > properties avail during other controls postbacks. ANY assist is most
> > > appreciated!
> > > wardeaux
> > >
> > >
> >
> >
>
>

Thanks for the reply! I added the control MANUALLY to the aspx page (coded
by hand the @reference and the <Prefix:Tagname> tags... that's probably why
the correct references weren't added to the aspx.vb file... thanks!

"Alessandro Zifiglio" <> wrote in
message news:Y7YOb.5324$...
> Wardeaux,
> Just like any webControl. If you had coded it correctly as you drag it
onto
> your webform, you should get the declaration for your webcontrol in your
> code behind just like with any webcontrol, use that to access its
> properties.
>
> Another way is to load it dynamically, you do this like any webcontrol
> again. You declare the type first
>
> dim mycontrol1 as mycontrol = new mycontrol
> 'then add the control to the page, or placeholder control
> placeholder1.controls.add(mycontrol1)
> 'then set any properties --now it will maintain state
> mycontrol1.myproperty = "Hello world"
>
> You probably know this, however make sure you have added a reference to
your
> customcontrol and you see it in your references node in solution
> explorer --if you added your custom control your toolbox and dragged and
> dropped it onto your page then the reference is already added --otherwise
> add the reference
>
> "Wardeaux" <> wrote in message
> news:%...
> > I appreciate your replies, but I think you missed my question...
> > I have a custom control. I want to set properties and get values from
my
> > custom control in my Codebehind. I place the control on my HTML page
> > (MyPage.aspx). I name the control MyControl1. Now I go the codebehind
> > MyPage.aspx.vb and in the PageLoad sub I want to load MyControl1 with
> data,
> > but when I type:
> > "...
> > MyControl1.MyProperty = "Hello world!"
> > ..."
> > I get a compile-time error stating that MyControl1 is an undeclared
> > variable...
> > How can I get a handle to the custom control object so that I can use it
> in
> > MyPage.aspx.vb?
> > thanks in advance!
> > wardeaux
> >
> > "Alessandro Zifiglio" <> wrote in
> > message news:W_BNb.3605$...
> > > oops, custom server control. My mistake. The example i just showed you
> is
> > > good. I though you were using the get/set accessors in your page and
> that
> > > didnt make much sense to me ;P
> > > Please ignore where i said "get/set accessors are useful if you
wanted
> to
> > > pass values to another page --plus there are some extra steps you need
> to
> > > take in the receiving page etc Look in the docs, its explained in
> detail"
> > >
> > > Look at the link for more details on how to maintain state in your web
> > > custom control
> > >
> >
>
http://msdn.microsoft.com/library/de...eincontrol.asp
> > >
> > > "Wardeaux" <> wrote in message
> > > news:...
> > > > Help! I'm developing a custom server control and want to get/set
> > > properties
> > > > in my codebehind. I have the control set within the HTML page
> correctly
> > > and
> > > > it loads/displays correctly, but when I try to compile my aspx.vb
> code,
> > it
> > > > complains that my variable name is undeclared. Is there a good
> article
> > or
> > > > sample I can use to master this? I don't need Postback, but I do
want
> > the
> > > > properties avail during other controls postbacks. ANY assist is
most
> > > > appreciated!
> > > > wardeaux
> > > >
> > > >
> > >
> > >
> >
> >
>
>

Your welcome. Glad i could help
"Wardeaux" <> wrote in message
news:...
> Thanks for the reply! I added the control MANUALLY to the aspx page
(coded
> by hand the @reference and the <Prefix:Tagname> tags... that's probably
why
> the correct references weren't added to the aspx.vb file... thanks!
>
> "Alessandro Zifiglio" <> wrote in
> message news:Y7YOb.5324$...
> > Wardeaux,
> > Just like any webControl. If you had coded it correctly as you drag it
> onto
> > your webform, you should get the declaration for your webcontrol in your
> > code behind just like with any webcontrol, use that to access its
> > properties.
> >
> > Another way is to load it dynamically, you do this like any webcontrol
> > again. You declare the type first
> >
> > dim mycontrol1 as mycontrol = new mycontrol
> > 'then add the control to the page, or placeholder control
> > placeholder1.controls.add(mycontrol1)
> > 'then set any properties --now it will maintain state
> > mycontrol1.myproperty = "Hello world"
> >
> > You probably know this, however make sure you have added a reference to
> your
> > customcontrol and you see it in your references node in solution
> > explorer --if you added your custom control your toolbox and dragged and
> > dropped it onto your page then the reference is already
added --otherwise
> > add the reference
> >
> > "Wardeaux" <> wrote in message
> > news:%...
> > > I appreciate your replies, but I think you missed my question...
> > > I have a custom control. I want to set properties and get values from
> my
> > > custom control in my Codebehind. I place the control on my HTML page
> > > (MyPage.aspx). I name the control MyControl1. Now I go the codebehind
> > > MyPage.aspx.vb and in the PageLoad sub I want to load MyControl1 with
> > data,
> > > but when I type:
> > > "...
> > > MyControl1.MyProperty = "Hello world!"
> > > ..."
> > > I get a compile-time error stating that MyControl1 is an undeclared
> > > variable...
> > > How can I get a handle to the custom control object so that I can use
it
> > in
> > > MyPage.aspx.vb?
> > > thanks in advance!
> > > wardeaux
> > >
> > > "Alessandro Zifiglio" <> wrote
in
> > > message news:W_BNb.3605$...
> > > > oops, custom server control. My mistake. The example i just showed
you
> > is
> > > > good. I though you were using the get/set accessors in your page and
> > that
> > > > didnt make much sense to me ;P
> > > > Please ignore where i said "get/set accessors are useful if you
> wanted
> > to
> > > > pass values to another page --plus there are some extra steps you
need
> > to
> > > > take in the receiving page etc Look in the docs, its explained in
> > detail"
> > > >
> > > > Look at the link for more details on how to maintain state in your
web
> > > > custom control
> > > >
> > >
> >
>
http://msdn.microsoft.com/library/de...eincontrol.asp
> > > >
> > > > "Wardeaux" <> wrote in message
> > > > news:...
> > > > > Help! I'm developing a custom server control and want to get/set
> > > > properties
> > > > > in my codebehind. I have the control set within the HTML page
> > correctly
> > > > and
> > > > > it loads/displays correctly, but when I try to compile my aspx.vb
> > code,
> > > it
> > > > > complains that my variable name is undeclared. Is there a good
> > article
> > > or
> > > > > sample I can use to master this? I don't need Postback, but I do
> want
> > > the
> > > > > properties avail during other controls postbacks. ANY assist is
> most
> > > > > appreciated!
> > > > > wardeaux
> > > > >
> > > > >
> > > >
> > > >
> > >
> > >
> >
> >
>
>