[2.0] VB.net to C#

I have an existing system written in VB.net and the database I used was MSAccess, and I would like to convert it into web application using asp.net written in C# and the database platform is SQL Server. Do you think I could still used my codes in VB.net especially for the following and convert it into C#:

1. Connection to the SQL Database
2. Add Records to the SQL Database
3. Edit and Update Records to the SQL Database
4. Delete Records to the SQL Database

How's the conversion? Is it a hard work to do? And is it true that PHP is much better than the ASP.net using C#? My colleagues told me that PHP works better than ASP.net?

Here is the sample code:

Code:

---

Private Sub btnEdit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnEdit.Click
        Dim cm As CurrencyManager
        If IsNothing(dsVolumeGenDiscount) Then Exit Sub

        cm = CType(BindingContext(dsVolumeGenDiscount, "tblVolGenDiscount"), CurrencyManager)

        'check if record is empty
        Dim A As Integer
        A = Me.BindingContext(dsVolumeGenDiscount, "tblVolGenDiscount").Count
        If A = 0 Then
            MsgBox("Record is empty!", MsgBoxStyle.Information)
            Exit Sub
        End If

        Dim id As Integer
        Dim dr As DataRowView = CType(cm.Current, DataRowView)
        id = CType(dr.Item("DiscountID"), Integer)

        Dim dsE As DataSet = GetDetail(id)

        Binder(dsE)
        'Me.LoadData()

        If txtChkGen.Text = "yes" Then
            chkGenDiscount.Checked = True
        End If

        btnEdit.Visible = False
        btnAdd.Enabled = False
        btnDelete.Enabled = False
        btnSave.Visible = True

        'Me.cboCountry.DataBindings.Clear()
        'Me.cboEquipment.DataBindings.Clear()
        'Me.txtCostPerEquip.DataBindings.Clear()
        'Me.txtDocID.DataBindings.Clear()
    End Sub

---

Thank you in advance!

Data access is not specific to WebForms or WinForms. If you had kept the data access code in its own library you could have just plugged it into an ASP.NET application "as is", regardless of development language. That's where good planning and design come into software development.

As it is now, you can just extract your data access code into its own library or a new application and convert to C# if required. Most code converters will get you most of the way there.

You can then switch your OLEDB provider from Jet to SQL Server, or preferably switch from OleDb completely to SqlClient. All the code structure will be essentially the same. You'll simply change from an OleDb class to the equivalent SqlClient class, e.g. from OleDbConnection to SqlConnection.

What makes my life more easy in converting my existing system into a web application?

Since my existing system is already written in VB.net, what if I'm going to use ASP.net using vb instead of using c#? Which one is best in Web Application? ASP.NET using vb or ASP.NET using c#?

Essentially I would prefer using the one that I know most. They are mostly same as long as you know the underlying framework. It is the .NET Framework Class Libraries that you are going to use in both C# and VB.

Actually I am only new for both languages for web application, and I find difficulty to find the best solution for my system to convert it into web. Can you help me find the best reference for C# and sql database that I can be used for converting my existing system into a web application using asp.net?

Here are couple of very good tutorials that will help you start learning ASP.NET. These can also be found by searching on Google.

ASP.NET Tutorial
C# ASP.NET Tutorial