This may be a very basic question but it's something I've never done before.
I've looked at a couple of my favorite sites and books and can't find an
answer either. I can write a Function to return a single value. No big
deal. But I want to call a Function from another Sub and the function finds
and returns an entire db record. Using ASP.NET (VB!), how can this be done
and how can I differentiate between the fields/columns?
For example:
My Sub()
Dim X As what? String? DataReader?
...do stuff....
X = MyFunction()
...do more stuff using the valueS stored in X
End Sub
My Function() As What? String? DataReader?
....go find record in db and return all fields
End Function
Thanks
-S 5 1754
Humm...you should have been able to find plenty of examples. since there
are a number of ways to go about it (depending on what your needs are), I'll
point you to a couple useful resources: http://www.dotnetjunkies.com/quickst...ataaccess.aspx http://www.asp101.com/articles/jay/a...et/default.asp
Hope this helps,
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message
news:uu******************@TK2MSFTNGP12.phx.gbl... This may be a very basic question but it's something I've never done
before. I've looked at a couple of my favorite sites and books and can't find an answer either. I can write a Function to return a single value. No big deal. But I want to call a Function from another Sub and the function
finds and returns an entire db record. Using ASP.NET (VB!), how can this be done and how can I differentiate between the fields/columns?
For example:
My Sub() Dim X As what? String? DataReader?
...do stuff.... X = MyFunction() ...do more stuff using the valueS stored in X End Sub My Function() As What? String? DataReader? ...go find record in db and return all fields End Function
Thanks -S
Thanks but I was hoping to get help on my specific issue. I know to connect
to a db and retrieve records and bind them if needed. But I'm not really
sure how to return the data from the record from the function itself. It's
a very basic question really. A Function returns A single value right? So
how can I use a Function to return a db record and the record contains
multiple fields/columns? Do I have the function return an "Object" instead
of a String? If so, in my Sub that calls the function, how can I tell what
field is what in the object? Thanks
Make sense?
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:OU****************@TK2MSFTNGP14.phx.gbl... Humm...you should have been able to find plenty of examples. since there are a number of ways to go about it (depending on what your needs are), I'll point you to a couple useful resources:
http://www.dotnetjunkies.com/quickst...ataaccess.aspx
http://www.asp101.com/articles/jay/a...et/default.asp
Hope this helps, Karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message news:uu******************@TK2MSFTNGP12.phx.gbl... This may be a very basic question but it's something I've never done before. I've looked at a couple of my favorite sites and books and can't find an answer either. I can write a Function to return a single value. No big deal. But I want to call a Function from another Sub and the function finds and returns an entire db record. Using ASP.NET (VB!), how can this be done and how can I differentiate between the fields/columns?
For example:
My Sub() Dim X As what? String? DataReader?
...do stuff.... X = MyFunction() ...do more stuff using the valueS stored in X End Sub My Function() As What? String? DataReader? ...go find record in db and return all fields End Function
Thanks -S
Sorry,
Generally you'd return the datatable or dataset....it can be tricky to
return a datareader since it requires the connection to remain open (so
who's responsible for closing it?). (I think it's better to use custom
entities ( http://weblogs.asp.net/plip/archive/...11/111128.aspx) but
that might be a little too much right now).
A single value can hold multiple values....a single value isn't
necessarilily a string or an int. ArrayLists for example can hold X
objects, hashtables the same, DataSets and DataTables hold multiple
values...though they are a single object.
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message
news:u%********************@TK2MSFTNGP09.phx.gbl.. . Thanks but I was hoping to get help on my specific issue. I know to
connect to a db and retrieve records and bind them if needed. But I'm not really sure how to return the data from the record from the function itself.
It's a very basic question really. A Function returns A single value right?
So how can I use a Function to return a db record and the record contains multiple fields/columns? Do I have the function return an "Object" instead of a String? If so, in my Sub that calls the function, how can I tell
what field is what in the object? Thanks
Make sense?
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:OU****************@TK2MSFTNGP14.phx.gbl... Humm...you should have been able to find plenty of examples. since
there are a number of ways to go about it (depending on what your needs are), I'll point you to a couple useful resources:
http://www.dotnetjunkies.com/quickst...ataaccess.aspx
http://www.asp101.com/articles/jay/a...et/default.asp
Hope this helps, Karl
-- MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message news:uu******************@TK2MSFTNGP12.phx.gbl... This may be a very basic question but it's something I've never done before. I've looked at a couple of my favorite sites and books and can't find
an answer either. I can write a Function to return a single value. No
big deal. But I want to call a Function from another Sub and the function finds and returns an entire db record. Using ASP.NET (VB!), how can this be done and how can I differentiate between the fields/columns?
For example:
My Sub() Dim X As what? String? DataReader?
...do stuff.... X = MyFunction() ...do more stuff using the valueS stored in X End Sub My Function() As What? String? DataReader? ...go find record in db and return all fields End Function
Thanks -S
Yes! That's pointing me in the right direction. So have the Function
return an ArrayList? I'll look into that concept.....
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net>
wrote in message news:O$**************@TK2MSFTNGP14.phx.gbl... Sorry, Generally you'd return the datatable or dataset....it can be tricky to return a datareader since it requires the connection to remain open (so who's responsible for closing it?). (I think it's better to use custom entities (http://weblogs.asp.net/plip/archive/...11/111128.aspx) but that might be a little too much right now).
A single value can hold multiple values....a single value isn't necessarilily a string or an int. ArrayLists for example can hold X objects, hashtables the same, DataSets and DataTables hold multiple values...though they are a single object.
Karl -- MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message news:u%********************@TK2MSFTNGP09.phx.gbl.. . Thanks but I was hoping to get help on my specific issue. I know to connect to a db and retrieve records and bind them if needed. But I'm not really sure how to return the data from the record from the function itself. It's a very basic question really. A Function returns A single value right? So how can I use a Function to return a db record and the record contains multiple fields/columns? Do I have the function return an "Object" instead of a String? If so, in my Sub that calls the function, how can I tell what field is what in the object? Thanks
Make sense?
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:OU****************@TK2MSFTNGP14.phx.gbl... > Humm...you should have been able to find plenty of examples. since there > are a number of ways to go about it (depending on what your needs are), > I'll > point you to a couple useful resources: > > http://www.dotnetjunkies.com/quickst...ataaccess.aspx > > http://www.asp101.com/articles/jay/a...et/default.asp > > Hope this helps, > Karl > > -- > MY ASP.Net tutorials > http://www.openmymind.net/ > > > "D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message > news:uu******************@TK2MSFTNGP12.phx.gbl... >> This may be a very basic question but it's something I've never done > before. >> I've looked at a couple of my favorite sites and books and can't find an >> answer either. I can write a Function to return a single value. No big >> deal. But I want to call a Function from another Sub and the function > finds >> and returns an entire db record. Using ASP.NET (VB!), how can this be >> done >> and how can I differentiate between the fields/columns? >> >> For example: >> >> My Sub() >> Dim X As what? String? DataReader? >> >> ...do stuff.... >> X = MyFunction() >> ...do more stuff using the valueS stored in X >> End Sub >> >> >> >> My Function() As What? String? DataReader? >> ...go find record in db and return all fields >> End Function >> >> >> Thanks >> -S >> >> >> >> > >
No..have it return a datatable :)
I was just saying that just because something is a single object doens't
mean it can't hold multiple values. If you have a single column, arraylist
might be good..but if you are holding on to multiple
columns/rows...datatable/dataset will be easiest..
Karl
--
MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message
news:up**************@TK2MSFTNGP12.phx.gbl... Yes! That's pointing me in the right direction. So have the Function return an ArrayList? I'll look into that concept..... "Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:O$**************@TK2MSFTNGP14.phx.gbl... Sorry, Generally you'd return the datatable or dataset....it can be tricky to return a datareader since it requires the connection to remain open (so who's responsible for closing it?). (I think it's better to use custom entities (http://weblogs.asp.net/plip/archive/...11/111128.aspx)
but that might be a little too much right now).
A single value can hold multiple values....a single value isn't necessarilily a string or an int. ArrayLists for example can hold X objects, hashtables the same, DataSets and DataTables hold multiple values...though they are a single object.
Karl -- MY ASP.Net tutorials http://www.openmymind.net/
"D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message news:u%********************@TK2MSFTNGP09.phx.gbl.. . Thanks but I was hoping to get help on my specific issue. I know to connect to a db and retrieve records and bind them if needed. But I'm not
really sure how to return the data from the record from the function itself. It's a very basic question really. A Function returns A single value right? So how can I use a Function to return a db record and the record contains multiple fields/columns? Do I have the function return an "Object" instead of a String? If so, in my Sub that calls the function, how can I tell what field is what in the object? Thanks
Make sense?
"Karl Seguin" <karl REMOVE @ REMOVE openmymind REMOVEMETOO . ANDME net> wrote in message news:OU****************@TK2MSFTNGP14.phx.gbl... > Humm...you should have been able to find plenty of examples. since there > are a number of ways to go about it (depending on what your needs
are), > I'll > point you to a couple useful resources: > >
http://www.dotnetjunkies.com/quickst...ataaccess.aspx > > http://www.asp101.com/articles/jay/a...et/default.asp > > Hope this helps, > Karl > > -- > MY ASP.Net tutorials > http://www.openmymind.net/ > > > "D. Shane Fowlkes" <sh**********@h-o-t-m-a-i-l.com> wrote in message > news:uu******************@TK2MSFTNGP12.phx.gbl... >> This may be a very basic question but it's something I've never done > before. >> I've looked at a couple of my favorite sites and books and can't
find an >> answer either. I can write a Function to return a single value. No big >> deal. But I want to call a Function from another Sub and the
function > finds >> and returns an entire db record. Using ASP.NET (VB!), how can this
be >> done >> and how can I differentiate between the fields/columns? >> >> For example: >> >> My Sub() >> Dim X As what? String? DataReader? >> >> ...do stuff.... >> X = MyFunction() >> ...do more stuff using the valueS stored in X >> End Sub >> >> >> >> My Function() As What? String? DataReader? >> ...go find record in db and return all fields >> End Function >> >> >> Thanks >> -S >> >> >> >> > >
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