Global property

[Mark Goldin]

I have main aspx page with a number of user controls.
How can I create a global property that will be visible in every user
control?

Thanks

[Mark Goldin]

I have no idea how to do that in C#.

"Greg Burns" <greg_burns@DON T_SPAM_ME_hotma il.com> wrote in message
news:OV******** ******@tk2msftn gp13.phx.gbl...

In your usercontrol, you just do like Karl says:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue

where MyValue is a property of your WebForm1 class

Now, if you go the extra mile and make your WebForm1 implement an interface (says ISettings), then you can do this:

dim pageValue as string = ctype(Page, ISettings).MyVa lue

Which is more generic and useful.

Let me know if you need more help. Not sure about the language barrier.
(I'm a VB'er)
Greg
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OT******** ******@TK2MSFTN GP11.phx.gbl...

How do I reference such a property from a user control?

"Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:ew******** ******@TK2MSFTN GP14.phx.gbl...

create a public property

Say your page is of type WebForm1

Public Class WebForm1
inherits System.Web.UI.P age
private _myvalue as string = "SomeValue"
public readonly property MyValue() as string
get
return _myvalue
end get
end property

Sub Page Load...
...
End Sub

...
End class

In your user controls, you can access MyValue via:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue
Every user control has access to the Page, and by casting it to the

specific

type, you have access to it's public property/methods..

Karl
"Mark Goldin" <ma********@com cast.net> wrote in message
news:eH******** ********@TK2MSF TNGP12.phx.gbl. ..
> I have main aspx page with a number of user controls.
> How can I create a global property that will be visible in every user
> control?
>
> Thanks
>
>

[Greg Burns]

That makes two of us. :^)

Greg

"Mark Goldin" <ma********@com cast.net> wrote in message
news:OZ******** ********@TK2MSF TNGP14.phx.gbl. ..

I have no idea how to do that in C#.

"Greg Burns" <greg_burns@DON T_SPAM_ME_hotma il.com> wrote in message
news:OV******** ******@tk2msftn gp13.phx.gbl...

In your usercontrol, you just do like Karl says:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue

where MyValue is a property of your WebForm1 class

Now, if you go the extra mile and make your WebForm1 implement an

interface

(says ISettings), then you can do this:

dim pageValue as string = ctype(Page, ISettings).MyVa lue

Which is more generic and useful.

Let me know if you need more help. Not sure about the language barrier.
(I'm a VB'er)
Greg
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OT******** ******@TK2MSFTN GP11.phx.gbl...

> How do I reference such a property from a user control?
>
> "Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in > message news:ew******** ******@TK2MSFTN GP14.phx.gbl...
>> create a public property
>>
>> Say your page is of type WebForm1
>>
>> Public Class WebForm1
>> inherits System.Web.UI.P age
>>
>>
>> private _myvalue as string = "SomeValue"
>> public readonly property MyValue() as string
>> get
>> return _myvalue
>> end get
>> end property
>>
>> Sub Page Load...
>> ...
>> End Sub
>>
>> ...
>> End class
>>
>> In your user controls, you can access MyValue via:
>>
>> dim pageValue as string = ctype(Page, WebForm1).MyVal ue
>>
>>
>> Every user control has access to the Page, and by casting it to the
> specific
>> type, you have access to it's public property/methods..
>>
>> Karl
>>
>>
>> "Mark Goldin" <ma********@com cast.net> wrote in message
>> news:eH******** ********@TK2MSF TNGP12.phx.gbl. ..
>> > I have main aspx page with a number of user controls.
>> > How can I create a global property that will be visible in every
>> > user
>> > control?
>> >
>> > Thanks
>> >
>> >
>>
>>
>
>

[Karl]

string pageValue = ((WebForm1)Page ).MyValue

or via the interface:

string pageValue ((ISettings)Pag e).MyValue

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OZ******** ********@TK2MSF TNGP14.phx.gbl. ..

I have no idea how to do that in C#.

"Greg Burns" <greg_burns@DON T_SPAM_ME_hotma il.com> wrote in message
news:OV******** ******@tk2msftn gp13.phx.gbl...

In your usercontrol, you just do like Karl says:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue

where MyValue is a property of your WebForm1 class

Now, if you go the extra mile and make your WebForm1 implement an

interface

(says ISettings), then you can do this:

dim pageValue as string = ctype(Page, ISettings).MyVa lue

Which is more generic and useful.

Let me know if you need more help. Not sure about the language barrier.
(I'm a VB'er)
Greg
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OT******** ******@TK2MSFTN GP11.phx.gbl...

How do I reference such a property from a user control?

"Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:ew******** ******@TK2MSFTN GP14.phx.gbl...
> create a public property
>
> Say your page is of type WebForm1
>
> Public Class WebForm1
> inherits System.Web.UI.P age
>
>
> private _myvalue as string = "SomeValue"
> public readonly property MyValue() as string
> get
> return _myvalue
> end get
> end property
>
> Sub Page Load...
> ...
> End Sub
>
> ...
> End class
>
> In your user controls, you can access MyValue via:
>
> dim pageValue as string = ctype(Page, WebForm1).MyVal ue
>
>
> Every user control has access to the Page, and by casting it to the
specific
> type, you have access to it's public property/methods..
>
> Karl
>
>
> "Mark Goldin" <ma********@com cast.net> wrote in message
> news:eH******** ********@TK2MSF TNGP12.phx.gbl. ..
> > I have main aspx page with a number of user controls.
> > How can I create a global property that will be visible in every user> > control?
> >
> > Thanks
> >
> >
>
>

[Mark Goldin]

After all here is what I have:
in Webform (main2):
private DataSet _Employee = null;

public DataSet Employee

{

get

{return _Employee;}

set

{_Employee = value;}

}

in the user control:

DataSet ds = ((humanres.main 2)Page).Employe e;

....

SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from udf_getEmployee Details(" + EmployeeId + ")",

ds, new string[]{"employee"} );

fails with the following error:



Server Error in '/humanres' Application.
--------------------------------------------------------------------------------

Value cannot be null. Parameter name: dataSet
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Argument NullException: Value cannot be null. Parameter name: dataSet
Line 53: DataSet ds = ((humanres.main 2)Page).Employe e;
.....

Line 55: SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from udf_getEmployee Details(" + EmployeeId + ")",
Line 56: ds, new string[]{"employee"} );


"Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:eV******** ******@TK2MSFTN GP11.phx.gbl...

string pageValue = ((WebForm1)Page ).MyValue

or via the interface:

string pageValue ((ISettings)Pag e).MyValue

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/


"Mark Goldin" <ma********@com cast.net> wrote in message
news:OZ******** ********@TK2MSF TNGP14.phx.gbl. ..

I have no idea how to do that in C#.

"Greg Burns" <greg_burns@DON T_SPAM_ME_hotma il.com> wrote in message
news:OV******** ******@tk2msftn gp13.phx.gbl...

In your usercontrol, you just do like Karl says:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue

where MyValue is a property of your WebForm1 class

Now, if you go the extra mile and make your WebForm1 implement an

interface

(says ISettings), then you can do this:

dim pageValue as string = ctype(Page, ISettings).MyVa lue

Which is more generic and useful.

Let me know if you need more help. Not sure about the language barrier.
(I'm a VB'er)
Greg
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OT******** ******@TK2MSFTN GP11.phx.gbl...
> How do I reference such a property from a user control?
>
> "Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote

in

> message news:ew******** ******@TK2MSFTN GP14.phx.gbl...
>> create a public property
>>
>> Say your page is of type WebForm1
>>
>> Public Class WebForm1
>> inherits System.Web.UI.P age
>>
>>
>> private _myvalue as string = "SomeValue"
>> public readonly property MyValue() as string
>> get
>> return _myvalue
>> end get
>> end property
>>
>> Sub Page Load...
>> ...
>> End Sub
>>
>> ...
>> End class
>>
>> In your user controls, you can access MyValue via:
>>
>> dim pageValue as string = ctype(Page, WebForm1).MyVal ue
>>
>>
>> Every user control has access to the Page, and by casting it to the
> specific
>> type, you have access to it's public property/methods..
>>
>> Karl
>>
>>
>> "Mark Goldin" <ma********@com cast.net> wrote in message
>> news:eH******** ********@TK2MSF TNGP12.phx.gbl. ..
>> > I have main aspx page with a number of user controls.
>> > How can I create a global property that will be visible in every user >> > control?
>> >
>> > Thanks
>> >
>> >
>>
>>
>
>

[Karl]

Mark,
Your dataset is null...you never do _Employee = new DataSet()...The simplest
way to solve your problem:

private DataSet _Employee = new DataSet(); //instead of = null;

The reason no on suggested this is that declaring a dataset in a page and
populating it in a user-control isn't obvious (at best) and suspect (at
worst). I would consider examining if that's a sound architecture. Since
I'm not sure what you are trying to do, short of your initial post asking
how to make a variable visible to all user controls, I can't offer any
suggestions.

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"Mark Goldin" <ma********@com cast.net> wrote in message
news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..
After all here is what I have:
in Webform (main2):
private DataSet _Employee = null;
public DataSet Employee
{
get
{return _Employee;}
set
{_Employee = value;}
}
in the user control:
DataSet ds = ((humanres.main 2)Page).Employe e;
....
SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from
udf_getEmployee Details(" + EmployeeId + ")",
ds, new string[]{"employee"} );
fails with the following error:
Server Error in '/humanres' Application.
Value cannot be null. Parameter name: dataSet
Description: An unhandled exception occurred during the execution of the
current web request. Please review the stack trace for more information
about the error and where it originated in the code.

Exception Details: System.Argument NullException: Value cannot be null.
Parameter name: dataSet

Line 53: DataSet ds = ((humanres.main 2)Page).Employe e;
.....
Line 55: SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from
udf_getEmployee Details(" + EmployeeId + ")",
Line 56: ds, new string[]{"employee"} );
"Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in
message news:eV******** ******@TK2MSFTN GP11.phx.gbl...

string pageValue = ((WebForm1)Page ).MyValue

or via the interface:

string pageValue ((ISettings)Pag e).MyValue

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OZ******** ********@TK2MSF TNGP14.phx.gbl. ..

I have no idea how to do that in C#.

"Greg Burns" <greg_burns@DON T_SPAM_ME_hotma il.com> wrote in message
news:OV******** ******@tk2msftn gp13.phx.gbl...

In your usercontrol, you just do like Karl says:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue

where MyValue is a property of your WebForm1 class

Now, if you go the extra mile and make your WebForm1 implement an

interface

(says ISettings), then you can do this:

dim pageValue as string = ctype(Page, ISettings).MyVa lue

Which is more generic and useful.

Let me know if you need more help. Not sure about the language barrier. (I'm a VB'er)
Greg
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OT******** ******@TK2MSFTN GP11.phx.gbl...
> How do I reference such a property from a user control?
>
> "Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>

wrote

in

> message news:ew******** ******@TK2MSFTN GP14.phx.gbl...
>> create a public property
>>
>> Say your page is of type WebForm1
>>
>> Public Class WebForm1
>> inherits System.Web.UI.P age
>>
>>
>> private _myvalue as string = "SomeValue"
>> public readonly property MyValue() as string
>> get
>> return _myvalue
>> end get
>> end property
>>
>> Sub Page Load...
>> ...
>> End Sub
>>
>> ...
>> End class
>>
>> In your user controls, you can access MyValue via:
>>
>> dim pageValue as string = ctype(Page, WebForm1).MyVal ue
>>
>>
>> Every user control has access to the Page, and by casting it to the
> specific
>> type, you have access to it's public property/methods..
>>
>> Karl
>>
>>
>> "Mark Goldin" <ma********@com cast.net> wrote in message
>> news:eH******** ********@TK2MSF TNGP12.phx.gbl. ..
>> > I have main aspx page with a number of user controls.
>> > How can I create a global property that will be visible in every

user >> > control?
>> >
>> > Thanks
>> >
>> >
>>
>>
>
>

[Greg Burns]

Your ds that your are passing to SqlHelper.Fill is still null. It has never been istantiated.

The VB equivalent is you have this: (not sure have to express this in c#)

Dim conn As New SqlClient.SqlCo nnection(Config urationSettings .AppSettings("C onnectionString "))
Dim ds As DataSet
SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from users where empid=1", ds, New String() {"employee"} )

You need to have this:
Dim conn As New SqlClient.SqlCo nnection(Config urationSettings .AppSettings("C onnectionString "))
Dim ds As NEW DataSet ' <---- gotta istantiate it first!!!
SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from users where empid=1", ds, New String() {"employee"} )
The reason your dataset is null, is becuase you assign it to the Employee ds property of your webform. And your not showing any code where you istantiate it anywhere.

These little bits and pieces of code without context are not helping me. (Maybe somebody else can help out here... please!)

Greg

"Mark Goldin" <ma********@com cast.net> wrote in message news:%2******** ********@TK2MSF TNGP09.phx.gbl. ..
After all here is what I have:
in Webform (main2):
private DataSet _Employee = null;

public DataSet Employee

{

get

{return _Employee;}

set

{_Employee = value;}

}

in the user control:

DataSet ds = ((humanres.main 2)Page).Employe e;

...

SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from udf_getEmployee Details(" + EmployeeId + ")",

ds, new string[]{"employee"} );

fails with the following error:
Server Error in '/humanres' Application.
------------------------------------------------------------------------------

Value cannot be null. Parameter name: dataSet
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Argument NullException: Value cannot be null. Parameter name: dataSet
Line 53: DataSet ds = ((humanres.main 2)Page).Employe e;
....

Line 55: SqlHelper.FillD ataset(conn, CommandType.Tex t, "select * from udf_getEmployee Details(" + EmployeeId + ")",
Line 56: ds, new string[]{"employee"} );


"Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:eV******** ******@TK2MSFTN GP11.phx.gbl...

string pageValue = ((WebForm1)Page ).MyValue

or via the interface:

string pageValue ((ISettings)Pag e).MyValue

Karl

--
MY ASP.Net tutorials
http://www.openmymind.net/


"Mark Goldin" <ma********@com cast.net> wrote in message
news:OZ******** ********@TK2MSF TNGP14.phx.gbl. ..

I have no idea how to do that in C#.

"Greg Burns" <greg_burns@DON T_SPAM_ME_hotma il.com> wrote in message
news:OV******** ******@tk2msftn gp13.phx.gbl...

In your usercontrol, you just do like Karl says:

dim pageValue as string = ctype(Page, WebForm1).MyVal ue

where MyValue is a property of your WebForm1 class

Now, if you go the extra mile and make your WebForm1 implement an

interface

(says ISettings), then you can do this:

dim pageValue as string = ctype(Page, ISettings).MyVa lue

Which is more generic and useful.

Let me know if you need more help. Not sure about the language barrier.
(I'm a VB'er)
Greg
"Mark Goldin" <ma********@com cast.net> wrote in message
news:OT******** ******@TK2MSFTN GP11.phx.gbl...
> How do I reference such a property from a user control?
>
> "Karl" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote

in

> message news:ew******** ******@TK2MSFTN GP14.phx.gbl...
>> create a public property
>>
>> Say your page is of type WebForm1
>>
>> Public Class WebForm1
>> inherits System.Web.UI.P age
>>
>>
>> private _myvalue as string = "SomeValue"
>> public readonly property MyValue() as string
>> get
>> return _myvalue
>> end get
>> end property
>>
>> Sub Page Load...
>> ...
>> End Sub
>>
>> ...
>> End class
>>
>> In your user controls, you can access MyValue via:
>>
>> dim pageValue as string = ctype(Page, WebForm1).MyVal ue
>>
>>
>> Every user control has access to the Page, and by casting it to the
> specific
>> type, you have access to it's public property/methods..
>>
>> Karl
>>
>>
>> "Mark Goldin" <ma********@com cast.net> wrote in message
>> news:eH******** ********@TK2MSF TNGP12.phx.gbl. ..
>> > I have main aspx page with a number of user controls.
>> > How can I create a global property that will be visible in every user >> > control?
>> >
>> > Thanks
>> >
>> >
>>
>>
>
>