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ASP.NET global function

Posted on 2003-10-28
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Last Modified: 2013-11-25
I have a asp.net project that I am developing in Visual Studio .NET.  I want to connect to the database, but I do not want to have to create a db connection on every page, everytime I want to get a recordset.  I would like to create a function that can be accessed from any page within the project and will return the recordset from the DB.  Also, I would not like to do this in a include file.  Any help would be greatly appreciated.  I wrote this db connection function to do the job, just don't know what do with it so that I can access it from all pages...

Public Shared Function getDataReader(ByVal sqlqry As String) As OleDbDataReader
            Dim Connstring As String = "blah"
            Dim conn As New OleDbConnection(Connstring)
            Dim objcmd As New OleDbCommand(sqlqry, conn)
            Dim dtr As OleDbDataReader

            Try
                conn.Open()
                With objcmd
                    .CommandType = CommandType.Text
                End With
                dtr = objcmd.ExecuteReader()
                Return dtr
            Catch ex As Exception

                'exception handling code to go here
            Finally
                dtr = Nothing
                objcmd = Nothing
            End Try
        End Function
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Question by:CodeDeamon
  • 2
3 Comments
 
LVL 3

Accepted Solution

by:
the-edge earned 500 total points
ID: 9637975
put it in the global.asax file and call it with this:

Global.getDataReader("SELECT * FROM blah")


the edge
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Author Comment

by:CodeDeamon
ID: 9638052
It throws this error:

Name 'Global' is not declared.
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LVL 3

Expert Comment

by:the-edge
ID: 9639968
it's strange...
add a module to your project and put the function there without the shared keyword:

Module Module1
    Public Function getDataReader(ByVal sqlqry As String) As OleDb.OleDbDataReader
        Dim Connstring As String = "blah"
        Dim conn As New OleDb.OleDbConnection(Connstring)
        Dim objcmd As New OleDb.OleDbCommand(sqlqry, conn)
        Dim dtr As OleDb.OleDbDataReader

        Try
            conn.Open()
            With objcmd
                .CommandType = CommandType.Text
            End With
            dtr = objcmd.ExecuteReader()
            Return dtr
        Catch ex As Exception

            'exception handling code to go here
        Finally
            dtr = Nothing
            objcmd = Nothing
        End Try
    End Function
End Module

call the function just writing it's name:

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        'Put user code to initialize the page here
        getDataReader("SELECT * FROM blah")
    End Sub
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