Descripciòn de la programacion de un sistema de facturación en Visual Basic

1. Proyecto de Visual Basic N° SISTEMA DE FACTURACIÓN

2. Form 1: Password del Sistema

3. Form2: Sistema de Facturación

4. Form3: Acerca del Autor

5. Programando el Form1 Private Sub Form_Load() End Sub Form1.Show Text1.SetFocus

6. Programando el Comando Aceptar Private Sub Command1_Click() End Sub Dim clave As String clave = "soyer“ If Text1.Text = clave Then MsgBox ("Bienvenido al sistema") Form2.Show Form1.Hide Else MsgBox ("Error, vuelva a ingresar clave") Text1.Text = "" Text1.SetFocus End If

7. Programando el Comando Salir Private Sub Command1_Click() End Sub End

9. Programando el Form2 Programando el Comando Calcular Private Sub Command1_Click() End Sub Dim dias As Integer, costo As Integer, cable As Integer, telefono As Integer, bar As Integer, hospedaje As Integer, servicio As Integer, total As Integer, igv As Integer, netos As Integer dias = Val(Text2.Text) If Option1.Value = True Then costo = 50 If Option2.Value = True Then costo = 70 hospedaje = costo * dias Text3.Text = Str(hospedaje) If Check1.Value = vbChecked Then cable = 20 If Check2.Value = vbChecked Then telefono = 20 If Check3.Value = vbChecked Then bar = 20 servicio = cable + telefono + bar Text4.Text = Str(servicio) total = hospedaje + servicio Text5.Text = Str(total) igv = 0.18 * total Text6.Text = Str(igv) neto = total + igv Text7.Text = Str(neto)

10. Programando el Comando Nuevo Private Sub Command1_Click() End Sub Text1.Text = "" Text2.Text = "" Text3.Text = "" Text4.Text = "" Text5.Text = "" Text6.Text = "" Text7.Text = "" Text1.SetFocus

11. Programando el Comando Acerca de… Private Sub Command1_Click() End Sub Form3.Show

12. Programando el Comando Salir Private Sub Command1_Click() End Sub Dim res As Integer res = MsgBox("Desea salir del sistema?", 4 + 32 + 256, "Salir") If res = 6 Then End Else Cancel = True End If

13. Programando el Form3 Programando el Comando Aceptar Private Sub Command1_Click() End Sub Form2.Show Form3.Hide