I'm converting my classic ASP website into ASP.net and some functions need to be carried over.
I've started to look at user controls but I need it dumbing down for me...
If i wrote a function in a user control how do I include it and use it in another file?
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Also, I can call that function, GetTotalAmount(), from any other Web Form,
usually in the code behind file. ex:
default.aspx - presentation file, HTML, etc...
default.aspx.vb - code behind
You just have to prefix the function name with the Class name, in this
example is ShoppingCart . . . so ShoppingCart.GetTotalAmoun
1 - What's the advantage of a code-behind file?
2 - Can you have multiple code-behind files?
3 - Can they be mixed langauge?
4 - How does this tie in with this(below) page?
http://msdn.microsoft.com/
I'll be honest all your actual code makes sense. I'm just use to programming my webdev in a linear way. I'm fine with OOP in Java and C++ its just seems a little odd applying those rules to a web environment...
Any help here on getting my understanding up is greatly appreciated...
1. separates the code from the html, easier to read
2. Just one code behind, but you can use Classes like the example I shown
3. Yes, but the same language for the individual files, ex: all VB for a file, or all C#
4. It shows you how to create user controls. Purposes of user controls would be
a Header for your page, or the Navigation for you page, makes coding easier
because you can reuse the code in many pages.
It's weird at first doing VB with Web pages but great once you get the
hang of it. I would recommend practicing with a few pages.
This will give you an good introduction to a lot of the concepts of asp.net:
http://www.w3schools.com/a
>>>I'm converting my classic ASP website into ASP.net and some functions need to be carried over. Are you talking about code or user control? If this is the code then what you can do is create a Web Control Library. This will compiled into a DLL and you can reference to that DLL from any of your web project you want.
Another approach will be to declare a class e.g. You might create a function that access and manipulate the database for each page but this will become too difficult when you will have to deal with more .aspx page. So what you can do is declare a class lets say DatabaseManagement, in its constructor open the database connection and write methods that return dataset and execute the SQL command. This will be more convenient and will allow you to have a tighter control over database manipulation for your web project. Have a look at the following post:
http://www.experts-exchang
This post define a C# class (I like it as it seems more convenient for me b/c of the object oriented background ;) ) . If you need some help in converting the class, to VB let me know.
HTH, Nauman.
First make the function Public.
Public Function DoSomething() As String
End Function
To use it in a page. First drag and drop the usercontrol in the page. Then add a row in codebehind just under the Initialization like that:
Protected Withevents myUserControl1 As UserControl1
then you can use the function
myUserControl1.DoSomething
hope it helps
good luck
I currently use dreamweaver mx 2004 for all my design and programming... Its just like a blown-up notepad for my programming so would you suggest I start using VS.net for doing this lot? A link for starting out this way would also be good...
The same goes for dlls... I've not got a clue about a) how to make them and b) how to use them in webdev...
I'm getting the geral jist of what's suppsed to be going on here but if I started I'm sure the project would flounder briefly before dying.
Spoon feed me a bit: here's how my ASP site is layed out and how things are included into each other to form a page:
Files:
/includes/pagetop.asp - contains the top HTML and some ASP for on-screen data - #includes pagefuncs.asp
/includes/pagebottom.asp - contains the bottom HTML and some more ASP
/includes/pagefuncs.asp - contains global funtions consisting of server-side JScript and ASP
/aPage.asp
content of aPage.asp:
<< set the page title variable >>
#includes pagetop.asp
<<page specific data>>
#include pagebottom.asp
How do I reorganise this?
Could I have one user control to do the design and global vars and functions?
How do I get a function in a UC to output HTML without response.writes?
You have to learn by doing, that is the only way.
And I would use Visual Studio because it has tons of features
and makes it easier to keep a project organized.
So start coding!!!
Get an asp.net beginners book that uses Visual Studio and following through so
you learn about the tools and features of VS. I'm sure it will have
some code examples as well.
Good Luck
IIS will run on Win 2000, XP Pro . . not Home ...
You can also set up a computer as a server and install
Win 2000 or 2003 Server on it, with IIS on it.
We you create a asp.net application in VS, VS needs IIS to run it.
You have to set the Location for the project like this:
http://Server_Name_Or_Loca
I'm on XP pro, I just dont want IIS running on it...
I'll see if it'll let me put files over ftp... :\
Business Accounts
Answer for Membership
by: MikeMCSDPosted on 2004-11-02 at 15:33:30ID: 12478862
First, make a Class file (.vb) and put your function in there, ex:
ShoppingCart.vb :
Public Class ShoppingCart
Public Shared Function GetTotalAmount() As Decimal
Dim connection As New SqlConnection(connectionSt
Dim command As SqlCommand = New SqlCommand("GetTotalAmount
command.CommandType = CommandType.StoredProcedur
command.Parameters.Add("@C
command.Parameters("@CartI
' The amount has a default value of 0
Dim amount As Decimal = 0
Try
' Try to get the amount from the database
connection.Open()
amount = command.ExecuteScalar()
Finally
connection.Close()
End Try
Return amount
End Function
End Class
Then, in this example, I'm calling the function from the ShoppingCart.aspx.vb
code behind file:
Dim amount As Decimal = ShoppingCart.GetTotalAmoun
totalAmountLabel.Text = String.Format("{0:c}", amount)
I'll post another example if you want.