Is this the right way to do it? Saving data....

The below code is what I'm using to write to the database. It works but I'm wondering whether it's the best way of doing it. Any comments?

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    Private Sub StartSavingReferralServiceProvider()
        If Not ValidateReferralServiceProviderFields() Then Exit Sub

        'Check the status of the connection
        CheckConnectionStatus()

        Dim cmd As SqlCommand = cnn.CreateCommand

        Try
            cmd.CommandType = CommandType.StoredProcedure
            cmd.CommandText = "procInsertReferralServiceProvider"

            cmd.Parameters.Add(New SqlParameter("@Name", SqlDbType.Text, 100))
            cmd.Parameters("@Name").Value = txt_Name.Text
            cmd.Parameters.Add(New SqlParameter("@Address", SqlDbType.Text, 35))
            cmd.Parameters("@Address").Value = txt_Address.Text
            cmd.Parameters.Add(New SqlParameter("@City", SqlDbType.Text, 35))
            cmd.Parameters("@City").Value = txt_City.Text
            cmd.Parameters.Add(New SqlParameter("@Phone", SqlDbType.Text, 30))
            cmd.Parameters("@Phone").Value = txt_Phone.Text
            cmd.Parameters.Add(New SqlParameter("@Email", SqlDbType.Text, 60))
            cmd.Parameters("@Email").Value = txt_Email.Text
            cmd.Parameters.Add(New SqlParameter("@ContactPerson", SqlDbType.Text, 35))
            cmd.Parameters("@ContactPerson").Value = txt_ContactPerson.Text
            cmd.Parameters.Add(New SqlParameter("@Notes", SqlDbType.Text, 6000))
            cmd.Parameters("@Notes").Value = txt_OrganisationNotes.Text
            cmd.Parameters.Add(New SqlParameter("@UserCreated", SqlDbType.Text, 35))
            cmd.Parameters("@UserCreated").Value = g_Username
            cmd.Parameters.Add(New SqlParameter("@BranchID", SqlDbType.Int))
            cmd.Parameters("@BranchID").Value = g_UserCentre
            cmd.Parameters.Add(New SqlParameter("@ReferralServiceProviderIDAuto", SqlDbType.Int))
            cmd.Parameters("@ReferralServiceProviderIDAuto").Value = m_ReferralServiceProviderIDAuto
            cmd.Parameters.Add(New SqlParameter("@DateCreated", SqlDbType.DateTime, 40))
            cmd.Parameters("@DateCreated").Value = New Date(Today.Year, Today.Month, Today.Day)

            cmd.ExecuteNonQuery()

            If m_ReferralServiceProviderIDAuto = 0 Then
                MessageBox.Show("New Referral Service Provider Successfully Saved!", "Save Successful", MessageBoxButtons.OK, MessageBoxIcon.Information)
            Else
                MessageBox.Show("Referral Service Provider Successfully Updated!", "Save Successful", MessageBoxButtons.OK, MessageBoxIcon.Information)
            End If

        Catch e As Exception
            MessageBox.Show("An exception of type " & e.GetType().ToString() & _
            " was encountered while inserting the data. Record failed writing to the database.", "Database Transaction Error", MessageBoxButtons.OK, MessageBoxIcon.Error)
        Finally
            cnn.Close()
        End Try

        txtSearch.Focus()
        GroupBox_Details.Enabled = False
        ToolBar1.Buttons(2).Enabled = False

    End Sub

******************


CREATE PROCEDURE procInsertReferralServiceProvider
      @Name varchar(100),
      @Address varchar(35),
      @City varchar(35),
      @Phone varchar(30),
      @EMail varchar(60),
      @ContactPerson varchar(35),
      @Notes varchar(6000),
      @UserCreated varchar(35),
      @BranchID int,
      @ReferralServiceProviderIDAuto int,
      @DateCreated datetime
AS
      SELECT @Name = REPLACE(@Name,"'","''")
      SELECT @Address = REPLACE(@Address,"'","''")
      SELECT @City = REPLACE(@City,"'","''")
      SELECT @Email = REPLACE(@Email,"'","''")
      SELECT @ContactPerson = REPLACE(@ContactPerson,"'","''")
      SELECT @Notes = REPLACE(@Notes,"'","''")
      
      If @ReferralServiceProviderIDAuto = 0
      BEGIN
            Insert into ReferralServiceProvider (UserCreated,  DateCreated, BranchID, ProviderName, Address, City, Phone, Email, ContactPerson, Description)
            Values (@UserCreated, @DateCreated,  @BranchID, @Name, @Address, @City, @Phone, @Email, @ContactPerson, @Notes)
      END
      Else
            Update ReferralServiceProvider
            Set UserCreated = @UserCreated,  BranchID = @BranchID, ProviderName = @Name, Address = @Address,
            City = @City, Phone = @Phone, Email = @Email, ContactPerson = @ContactPerson, Description = @Notes
            where ReferralServiceProviderIDAuto = @ReferralServiceProviderIDAuto

GO