Solved

Help Creating a function to change SQL Field Values

Posted on 2007-11-18
1
141 Views
Last Modified: 2011-09-20
Hi all

Im looking for some help in creating a function to allow me to hardcode updates into SQL. The attached code will allow me to open the DB and search the fields however its been a while since ive programmed in vb and am moving to .net so hence the .field("Name") = is a bit out of date..  :)

Any help would be great

Many Thanks
Steve

Code in use __________________________________
       Dim SQL As String = "SELECT * FROM USERINFO WHERE USERNAME = '" & txtUsername.Text & "' AND PASSWORD  = '" & CryptPass & "'"
        Dim sqlReader As SqlDataReader = CCDBC.CCDBC.RetrieveData(SQL)
 
        If sqlReader.Read Then
            With sqlReader
                MsgBox(.GetValue(1) & "   " & .GetValue(2) & "   " & .GetValue(3))
            End With
            Me.Close()
        Else
            MsgBox("Invalid Username or Password entered", MsgBoxStyle.Exclamation)
        End If
        sqlReader.Close()
        sqlReader = Nothing
 
__________________________________________________
 
 
 
 
Public Shared Function GetConnection() As SqlClient.SqlConnection
        Dim conn As SqlClient.SqlConnection
        Dim strConn As String = "Data Source=SQLEXPRESS;Initial Catalog=CC;Integrated Security=True;Pooling=False"
 
        conn = New SqlClient.SqlConnection(strConn)
        Try
            conn.Open()
        Catch ex As SqlClient.SqlException
            Console.WriteLine("SQL Server ERROR: " & ex.Message & " in " & ex.StackTrace)
 
        Catch ex As Exception
            Console.WriteLine("ERROR opening connection: " & ex.Message)
        End Try
        GetConnection = conn
    End Function
 
    Public Shared Function RetrieveData(ByVal query As String) As SqlClient.SqlDataReader
        Dim rdr As SqlClient.SqlDataReader
        Dim conn As SqlClient.SqlConnection = GetConnection()
        Try
            Dim cmd As SqlClient.SqlCommand = New SqlClient.SqlCommand(query, conn)
            ''CommandBehavior.CloseConnection closes the underlying connection 
            ''whenever the reader is closed
            rdr = cmd.ExecuteReader(CommandBehavior.CloseConnection)
        Catch ex As SqlClient.SqlException
            Console.WriteLine("SQL Server ERROR: " & ex.Message & " in " & ex.StackTrace)
        Catch ex As Exception
            Console.WriteLine("ERROR retrieving data: " & ex.Message)
        End Try
        RetrieveData = rdr
    End Function

Open in new window

0
Comment
Question by:Stephen Manderson
1 Comment
 
LVL 142

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 20310503
please check out this tutorial:
http://webgraphics.web108.discountasp.net/HandH/AdapterUpdate.htm

it tells you to fill in a sqldataadapter, and define the UpdateCommand that will submit the sql update (or procedure) to save any changes done to the data inthe sqldataadapter...

hope this clarifies how to do things the .net way
0

Featured Post

DevOps Toolchain Recommendations

Read this Gartner Research Note and discover how your IT organization can automate and optimize DevOps processes using a toolchain architecture.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Welcome my friends to the second instalment and follow-up to our Minify and Concatenate Your Scripts and Stylesheets (http://www.experts-exchange.com/Programming/Languages/.NET/ASP.NET/A_4334-Minify-and-Concatenate-Your-Scripts-and-Stylesheets.html)…
More often than not, we developers are confronted with a need: a need to make some kind of magic happen via code. Whether it is for a client, for the boss, or for our own personal projects, the need must be satisfied. Most of the time, the Framework…
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download. This will be demonstrated using Microsoft Expression Encoder 4.
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

772 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question